Device Management

This chapter describes how to add and manage devices in the Firepower Management Center.

About Device Management

Use the FMC to manage your devices.

About the FMC and Device Management

When the FMC manages a device, it sets up a two-way, SSL-encrypted communication channel between itself and the device. The FMC uses this channel to send information to the device about how you want to analyze and manage your network traffic to the device. As the device evaluates the traffic, it generates events and sends them to the FMC using the same channel.

By using the FMC to manage devices, you can:

  • configure policies for all your devices from a single location, making it easier to change configurations

  • install various types of software updates on devices

  • push health policies to your managed devices and monitor their health status from the FMC

The FMC aggregates and correlates intrusion events, network discovery information, and device performance data, allowing you to monitor the information that your devices are reporting in relation to one another, and to assess the overall activity occurring on your network.

You can use the FMC to manage nearly every aspect of a device’s behavior.


Note

Although the FMC can manage devices running certain previous releases as specified in the compatibility matrix available at http://www.cisco.com/c/en/us/support/security/defense-center/products-device-support-tables-list.html, new features that require the latest version of FTD software are not available to these previous-release devices. Some FMC features may be available for earlier versions.

What Can Be Managed by a Firepower Management Center?

You can use the Firepower Management Center as a central management point to manage FTD devices.

When you manage a device, information is transmitted between the FMC and the device over a secure, TLS-1.3-encrypted communication channel. You do not need to run this traffic over an additional encrypted tunnel such as Site-to-Site VPN for security purposes. If the VPN goes down, for example, you will lose your management connection, so we recommend a simple management path.

The following illustration lists what is transmitted between the FMC and its managed devices. Note that the types of events and policies that are sent between the appliances are based on the device type.


Diagram illustrating information passed between a FMC and its managed devices. Policy and configuration information is passed from the FMC to the managed devices. Events, discovery data, and device statistics are passed from the managed devices to the FMC.

About the Management Connection

After you configure the device with the FMC information and after you add the device to the FMC, either the device or the FMC can establish the management connection. Depending on initial setup:

  • Either the device or the FMC can initiate.

  • Only the device can initiate.

  • Only the FMC can initiate.

Initiation always originates with eth0 on the FMC or with the lowest-numbered management interface on the device. Additional management interfaces are tried if the connection is not established. Multiple management interfaces on the FMC let you connect to discrete networks or to segregate management and event traffic. However, the initiator does not choose the best interface based on the routing table.

Make sure the management connection is stable, without excessive packet loss, with at least 5Mbps throughput.


Note

The management connection is a secure, TLS-1.3-encrypted communication channel between itself and the device. You do not need to run this traffic over an additional encrypted tunnel such as Site-to-Site VPN for security purposes. If the VPN goes down, for example, you will lose your management connection, so we recommend a simple management path.

Beyond Policies and Events

In addition to deploying policies to devices and receiving events from them, you can also perform other device-related tasks on the FMC.

Backing Up a Device

You cannot backup a physical managed device from the FTD CLI. To back up configuration data, and, optionally, unified files, perform a backup of the device using the FMC that is managing the device.

To back up event data, perform a backup of the FMC that is managing the device.

Updating Devices

From time to time, Cisco releases updates to the Firepower System, including:

  • intrusion rule updates, which may contain new and updated intrusion rules

  • vulnerability database (VDB) updates

  • geolocation updates

  • software patches and updates

You can use the FMC to install an update on the devices it manages.

About Device Management Interfaces

Each device includes a single dedicated Management interface for communicating with the FMC. You can optionally configure the device to use a data interface for management instead of the dedicated Management interface.

You can perform initial setup on the management interface, or on the console port.

Management interfaces are also used to communicate with the Smart Licensing server, to download updates, and to perform other management functions.

Management and Event Interfaces on the FTD

When you set up your device, you specify the FMC IP address or hostname that you want to connect to, if known. In this case, the device initiates the connection, and both management and event traffic go to this address at initial registration. If the FMC is not known, then the FMC establishes the initial connection. In this case, it might initially connect from a different FMC management interface than specified on the FTD. Subsequent connections should use the FMC management interface with the specified IP address.

If the FMC has a separate event-only interface, the managed device sends subsequent event traffic to the FMC event-only interface if the network allows. In addition, some managed-device models include an additional management interface that you can configure for event-only traffic. Note that if you configure a data interface for management, you cannot use separate management and event interfaces. If the event network goes down, then event traffic reverts to the regular management interfaces on the FMC and/or on the managed device.

Using the FTD Data Interface for Management

You can use either the dedicated Management interface or a regular data interface for communication with the FMC. Manager access on a data interface is useful if you want to manage the FTD remotely from the outside interface, or you do not have a separate management network.

Manager Access Requirements

Manager access from a data interface has the following requirements.

  • You can only enable manager access on one physical, data interface. You cannot use a subinterface or EtherChannel.

  • This interface cannot be management-only.

  • Routed firewall mode only, using a routed interface.

  • PPPoE is not supported. If your ISP requires PPPoE, you will have to put a router with PPPoE support between the FTD and the WAN modem.

  • The interface must be in the global VRF only.

  • SSH is not enabled by default for data interfaces, so you will have to enable SSH later using the FMC. Because the Management interface gateway will be changed to be the data interfaces, you also cannot SSH to the Management interface from a remote network unless you add a static route for the Management interface using the configure network static-routes command. For FTDv on Amazon Web Services, a console port is not available, so you should maintain your SSH access to the Management interface: add a static route for Management before you continue with your configuration. Alternatively, be sure to finish all CLI configuration (including the configure manager add command) before you configure the data interface for manager access and you are disconnected.

  • You cannot use separate management and event-only interfaces.

  • Clustering is not supported. You must use the Management interface in this case.

  • High availability is not supported. You must use the Management interface in this case.

Management Interface Support Per Device Model

See the hardware installation guide for your model for the management interface locations.


Note

For the Firepower 4100/9300, the MGMT interface is for chassis management, not for FTD logical device management. You must configure a separate interface to be of type mgmt (and/or firepower-eventing), and then assign it to the FTD logical device.


Note

For the FTD on any chassis, the physical management interface is shared between the Diagnostic logical interface, which is useful for SNMP or syslog, and is configured along with data interfaces in the FMC, and the Management logical interface for the FMC communication. See Management/Diagnostic Interface for more information.

See the following table for supported management interfaces on each managed device model.

Table 1. Management Interface Support on Managed Devices

Model

Management Interface

Optional Event Interface

Firepower 1000

management0

Note

 

management0 is the internal name of the Management 1/1 interface.

No Support

Firepower 2100

management0

Note

 

management0 is the internal name of the Management 1/1 interface.

No Support

Secure Firewall 3100

management0

Note

 

management0 is the internal name of the Management 1/1 interface.

No Support

Firepower 4100 and 9300

management0

Note

 

management0 is the internal name of this interface, regardless of the physical interface ID.

management1

Note

 

management1 is the internal name of this interface, regardless of the physical interface ID.

ISA 3000

br1

Note

 

br1 is the internal name of the Management 1/1 interface.

No support

Firepower Threat Defense Virtual

eth0

No support

Network Routes on Device Management Interfaces

Management interfaces (including event-only interfaces) support only static routes to reach remote networks. When you set up your managed device, the setup process creates a default route to the gateway IP address that you specify. You cannot delete this route; you can only modify the gateway address.


Note

The routing for management interfaces is completely separate from routing that you configure for data interfaces. If you configure a data interface for management instead of using the dedicated Management interface, traffic is routed over the backplane to use the data routing table. The information in this section does not apply.

You can configure multiple management interfaces on some platforms (a management interface and an event-only interface). The default route does not include an egress interface, so the interface chosen depends on the gateway address you specify, and which interface's network the gateway belongs to. In the case of multiple interfaces on the default network, the device uses the lower-numbered interface as the egress interface.

At least one static route is recommended per management interface to access remote networks. We recommend placing each interface on a separate network to avoid potential routing problems, including routing problems from other devices to the FTD.


Note

The interface used for management connections is not determined by the routing table. Connections are always tried using the lowest-numbered interface first.

NAT Environments

Network address translation (NAT) is a method of transmitting and receiving network traffic through a router that involves reassigning the source or destination IP address. The most common use for NAT is to allow private networks to communicate with the internet. Static NAT performs a 1:1 translation, which does not pose a problem for FMC communication with devices, but port address translation (PAT) is more common. PAT lets you use a single public IP address and unique ports to access the public network; these ports are dynamically assigned as needed, so you cannot initiate a connection to a device behind a PAT router.

Normally, you need both IP addresses (along with a registration key) for both routing purposes and for authentication: the FMC specifies the device IP address when you add a device, and the device specifies the FMC IP address. However, if you only know one of the IP addresses, which is the minimum requirement for routing purposes, then you must also specify a unique NAT ID on both sides of the connection to establish trust for the initial communication and to look up the correct registration key. The FMC and device use the registration key and NAT ID (instead of IP addresses) to authenticate and authorize for initial registration.

For example, you add a device to the FMC, and you do not know the device IP address (for example, the device is behind a PAT router), so you specify only the NAT ID and the registration key on the FMC; leave the IP address blank. On the device, you specify the FMC IP address, the same NAT ID, and the same registration key. The device registers to the FMC's IP address. At this point, the FMC uses the NAT ID instead of IP address to authenticate the device.

Although the use of a NAT ID is most common for NAT environments, you might choose to use the NAT ID to simplify adding many devices to the FMC. On the FMC, specify a unique NAT ID for each device you want to add while leaving the IP address blank, and then on each device, specify both the FMC IP address and the NAT ID. Note: The NAT ID must be unique per device.

The following example shows three devices behind a PAT IP address. In this case, specify a unique NAT ID per device on both the FMC and the devices, and specify the FMC IP address on the devices.

Figure 1. NAT ID for Managed Devices Behind PAT
NAT ID for Managed Devices Behind PAT

The following example shows the FMC behind a PAT IP address. In this case, specify a unique NAT ID per device on both the FMC and the devices, and specify the device IP addresses on the FMC.

Figure 2. NAT ID for FMC Behind PAT
NAT ID for FMC Behind PAT

Management and Event Traffic Channel Examples


Note

If you use a data interface for management on a FTD, you cannot use separate management and event interfaces for that device.

The following example shows the FMC and managed devices using only the default management interfaces.

Figure 3. Single Management Interface on the Firepower Management Center

The following example shows the FMC using separate management interfaces for devices; and each managed device using 1 management interface.

Figure 4. Multiple Management Interfaces on the Firepower Management Center

The following example shows the FMC and managed devices using a separate event interface.

Figure 5. Separate Event Interface on the Firepower Management Center and Managed Devices

The following example shows a mix of multiple management interfaces and a separate event interface on the FMC and a mix of managed devices using a separate event interface, or using a single management interface.

Figure 6. Mixed Management and Event Interface Usage

Requirements and Prerequisites for Device Management

Supported Domains

The domain in which the device resides.

User Roles

  • Admin

  • Network Admin

Management Connection

Make sure the management connection is stable, without excessive packet loss, with at least 5Mbps throughput.

Log Into the Command Line Interface on the Device

You can log directly into the command line interface on FTD devices. If this is your first time logging in, complete the initial setup process using the default admin user; see Complete the FTD Initial Configuration Using the CLI.


Note

If a user makes three consecutive failed attempts to log into the CLI via SSH, the system terminates the SSH connection.

Before you begin

Create additional user accounts that can log into the CLI using the configure user add command.

Procedure

Step 1

Connect to the FTD CLI, either from the console port or using SSH.

You can SSH to the management interface of the FTD device. You can also connect to the address on a data interface if you open the interface for SSH connections. SSH access to data interfaces is disabled by default. See Secure Shell to allow SSH connections to specific data interfaces.

For physical devices, you can directly connect to the console port on the device. See the hardware guide for your device for more information about the console cable. Use the following serial settings:

  • 9600 baud

  • 8 data bits

  • No parity

  • 1 stop bit

The CLI on the console port is FXOS (with the exception of the ISA 3000, where it is the regular FTD CLI). Use the FTD CLI for basic configuration, monitoring, and normal system troubleshooting. See the FXOS documentation for information on FXOS commands.

Step 2

Log in with the admin username and password.

Example:


firepower login: admin
Password:
Last login: Thu May 16 14:01:03 UTC 2019 on ttyS0
Successful login attempts for user 'admin' : 1

firepower#

Step 3

If you used the console port, access the FTD CLI.

connect ftd

Note

 

This step does not apply to the ISA 3000.

Example:


firepower# connect ftd
>

Step 4

At the CLI prompt (>), use any of the commands allowed by your level of command line access.

To return to FXOS on the console port, enter exit .

Step 5

(Optional) If you used SSH, you can connect to FXOS.

connect fxos

To return to the FTD CLI, enter exit .

Step 6

(Optional) Access the diagnostic CLI:

system support diagnostic-cli

Use this CLI for advanced troubleshooting. This CLI includes additional show and other commands.

This CLI has two sub-modes: user EXEC and privileged EXEC mode. More commands are available in privileged EXEC mode. To enter privileged EXEC mode, enter the enable command; press enter without entering a password when prompted.

Example:


> system support diagnostic-cli
firepower> enable
Password:
firepower#

To return to the regular CLI, type Ctrl-a, d.

Complete the FTD Initial Configuration

You can complete the FTD initial configuration using the CLI or the FDM for all models except for the Firepower 4100/9300. For the Firepower 4100/9300, you complete initial configuration when you deploy the logical device. See Logical Devices on the Firepower 4100/9300.

Complete the FTD Initial Configuration Using the FDM

Connect to the FDM to perform initial setup of the FTD. When you perform initial setup using the FDM, all interface configuration completed in the FDM is retained when you switch to the FMC for management, in addition to the Management interface and manager access settings. Note that other default configuration settings, such as the access control policy or security zones, are not retained. When you use the CLI, only the Management interface and manager access settings are retained (for example, the default inside interface configuration is not retained).

  • This procedure applies to all devices except for the Firepower 4100/9300 and the ISA 3000. You can use the FDM to onboard these devices to the FMC, but because they have different default configurations than other platforms, the details in this procedure may not apply to these platforms.

Procedure

Step 1

Log into the FDM.

  1. Enter the following URL in your browser.

    • Inside—https://192.168.95.1 .

    • Management—https://management_ip . The Management interface is a DHCP client, so the IP address depends on your DHCP server. You will have to set the Management IP address to a static address as part of this procedure, so we recommend that you use the inside interface so you do not become disconnected.

  2. Log in with the username admin, and the default password Admin123.

  3. You are prompted to read and accept the End User License Agreement and change the admin password.

Step 2

Use the setup wizard when you first log into the FDM to complete the initial configuration. You can optionally skip the setup wizard by clicking Skip device setup at the bottom of the page.

After you complete the setup wizard, in addition to the default configuration for the inside interface, you will have configuration for an outside (Ethernet1/1) interface that will be maintained when you switch to the FMC management.

  1. Configure the following options for the outside and management interfaces, and click Next.

    1. Outside Interface Address—This interface is typically the internet gateway, and might be used as your manager access interface. You cannot select an alternative outside interface during initial device setup. The first data interface is the default outside interface.

      If you want to use a different interface from outside (or inside) for manager access, you will have to configure it manually after completing the setup wizard.

      Configure IPv4—The IPv4 address for the outside interface. You can use DHCP or manually enter a static IP address, subnet mask, and gateway. You can also select Off to not configure an IPv4 address. You cannot configure PPPoE using the setup wizard. PPPoE may be required if the interface is connected to a DSL modem, cable modem, or other connection to your ISP, and your ISP uses PPPoE to provide your IP address. You can configure PPPoE after you complete the wizard.

      Configure IPv6—The IPv6 address for the outside interface. You can use DHCP or manually enter a static IP address, prefix, and gateway. You can also select Off to not configure an IPv6 address.

    2. Management Interface

      You will not see Management Interface settings if you performed initial setup at the CLI.

      The Management interface settings are used even if you enable manager access on a data interface. For example, the management traffic that is routed over the backplane through the data interface will resolve FQDNs using the Management interface DNS servers, and not the data interface DNS servers.

      DNS Servers—The DNS server for the system's management address. Enter one or more addresses of DNS servers for name resolution. The default is the OpenDNS public DNS servers. If you edit the fields and want to return to the default, click Use OpenDNS to reload the appropriate IP addresses into the fields.

      Firewall Hostname—The hostname for the system's management address.

  2. Configure the Time Setting (NTP) and click Next.

    1. Time Zone—Select the time zone for the system.

    2. NTP Time Server—Select whether to use the default NTP servers or to manually enter the addresses of your NTP servers. You can add multiple servers to provide backups.

  3. Select Start 90 day evaluation period without registration.

    Do not register the FTD with the Smart Software Manager; all licensing is performed on the FMC.

  4. Click Finish.

  5. You are prompted to choose Cloud Management or Standalone. For FMC management, choose Standalone, and then Got It.

Step 3

(Might be required) Configure the Management interface.

You may need to change the Management interface configuration, even if you intend to use a data interface for manager access. You will have to reconnect to the FDM if you were using the Management interface for the FDM connection.

  • Data interface for manager access—The Management interface must have the gateway set to data interfaces. By default, the Management interface receives an IP address and gateway from DHCP. If you do not receive a gateway from DHCP (for example, you did not connect this interface to a network), then the gateway will default to data interfaces, and you do not need to configure anything. If you did receive a gateway from DHCP, then you need to instead configure this interface with a static IP address and set the gateway to data interfaces.

  • Management interface for manager access—If you want to configure a static IP address, be sure to also set the default gateway to be a unique gateway instead of the data interfaces. If you use DHCP, then you do not need to configure anything assuming you successfully get the gateway from DHCP.

Step 4

If you want to configure additional interfaces, including an interface other than outside or inside that you want to use for manager access, choose Device, and then click the link in the Interfaces summary.

Other FDM configuration will not be retained when you register the device to FMC.

Step 5

Choose Device > System Settings > Management Center, and click Proceed to set up the FMC management.

Step 6

Configure the FMC Details.

Figure 7. FMC Details
FMC Details

  1. For Do you know the FMC hostname or IP address, click Yes if you can reach the FMC using an IP address or hostname, or No if the FMC is behind NAT or does not have a public IP address or hostname.

    At least one of the devices, either the FMC or the FTD device, must have a reachable IP address to establish the two-way, TLS-1.3-encrypted communication channel between the two devices.

  2. If you chose Yes, then enter the FMC Hostname/IP Address.

  3. Specify the FMC Registration Key.

    This key is a one-time registration key of your choice that you will also specify on the FMC when you register the FTD device. The registration key must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID can be used for multiple devices registering to the FMC.

  4. Specify a NAT ID.

    This ID is a unique, one-time string of your choice that you will also specify on the FMC. This field is required if you only specify the IP address on one of the devices; but we recommend that you specify the NAT ID even if you know the IP addresses of both devices. The NAT ID must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID cannot be used for any other devices registering to the FMC. The NAT ID is used in combination with the IP address to verify that the connection is coming from the correct device; only after authentication of the IP address/NAT ID will the registration key be checked.

Step 7

Configure the Connectivity Configuration.

  1. Specify the FTD Hostname.

    If you use a data interface for the FMC Access Interface access, then this FQDN will be used for this interface.

  2. Specify the DNS Server Group.

    Choose an existing group, or create a new one. The default DNS group is called CiscoUmbrellaDNSServerGroup, which includes the OpenDNS servers.

    If you intend to choose a data interface for the FMC Access Interface, then this setting sets the data interface DNS server. The Management DNS server that you set with the setup wizard is used for management traffic. The data DNS server is used for DDNS (if configured) or for security policies applied to this interface. You are likely to choose the same DNS server group that you used for Management, because both management and data traffic reach the DNS server through the outside interface.

    On the FMC, the data interface DNS servers are configured in the Platform Settings policy that you assign to this FTD device. When you add the FTD device to the FMC, the local setting is maintained, and the DNS servers are not added to a Platform Settings policy. However, if you later assign a Platform Settings policy to the FTD device that includes a DNS configuration, then that configuration will overwrite the local setting. We suggest that you actively configure the DNS Platform Settings to match this setting to bring the FMC and the FTD device into sync.

    Also, local DNS servers are only retained by the FMC if the DNS servers were discovered at initial registration.

    If you intend to choose the Management interface for the FMC Access Interface, then this setting configures the Management DNS server.

  3. For the FMC Access Interface, choose any configured interface.

    You can change the manager interface after you register the FTD device to the FMC, to either the Management interface or another data interface.

Step 8

(Optional) If you chose a data interface, and it was not the outside interface, then add a default route.

You will see a message telling you to check that you have a default route through the interface. If you chose outside, you already configured this route as part of the setup wizard. If you chose a different interface, then you need to manually configure a default route before you connect to the FMC.

If you chose the Management interface, then you need to configure the gateway to be a unique gateway before you can proceed on this screen.

Step 9

(Optional) If you chose a data interface, click Add a Dynamic DNS (DDNS) method.

DDNS ensures the FMC can reach the FTD device at its Fully-Qualified Domain Name (FQDN) if the IP address changes. See Device > System Settings > DDNS Service to configure DDNS.

If you configure DDNS before you add the FTD device to the FMC, the FTD device automatically adds certificates for all of the major CAs from the Cisco Trusted Root CA bundle so that the FTD device can validate the DDNS server certificate for the HTTPS connection. FTD supports any DDNS server that uses the DynDNS Remote API specification (https://help.dyn.com/remote-access-api/).

DDNS is not supported when using the Management interface for manager access.

Step 10

Click Connect. The FMC Registration Status dialog box shows the current status of the switch to the FMC. After the Saving FMC Registration Settings step, go to the FMC, and add the firewall.

Figure 8. FMC Registration Status
FMC Registration Status

If you want to cancel the switch to the FMC, click Cancel Registration. Otherwise, do not close the FDM browser window until after the Saving FMC Registration Settings step. If you do, the process will be paused, and will only resume when you reconnect to the FDM.

If you remain connected to the FDM after the Saving FMC Registration Settings step, you will eventually see the Successful Connection with FMC dialog box, after which you will be disconnected from the FDM.

Figure 9. Successful Connection with FMC
Successful Connection with FMC

Complete the FTD Initial Configuration Using the CLI

Connect to the FTD CLI to perform initial setup, including setting the Management IP address, gateway, and other basic networking settings using the setup wizard. The dedicated Management interface is a special interface with its own network settings. If you do not want to use the Management interface for manager access, you can use the CLI to configure a data interface instead. You will also configure FMC communication settings. When you perform initial setup using the FDM, all interface configuration completed in the FDM is retained when you switch to the FMC for management, in addition to the Management interface and manager access interface settings. Note that other default configuration settings, such as the access control policy, are not retained.

This procedure applies to all models except for the Firepower 4100/9300. To deploy a logical device and complete initial configuration on the Firepower 4100/9300, see Logical Devices on the Firepower 4100/9300.

Procedure

Step 1

Connect to the FTD CLI, either from the console port or using SSH to the Management interface, which obtains an IP address from a DHCP server by default. If you intend to change the network settings, we recommend using the console port so you do not get disconnected.

(Firepower and Secure Firewall hardware models) The console port connects to the FXOS CLI. The SSH session connects directly to the FTD CLI.

Step 2

Log in with the username admin and the password Admin123.

(Firepower and Secure Firewall hardware models) At the console port, you connect to the FXOS CLI. The first time you log in to FXOS, you are prompted to change the password. This password is also used for the FTD login for SSH.

Note

 

If the password was already changed, and you do not know it, you must reimage the device to reset the password to the default.

For Firepower and Secure Firewall hardware, see the Reimage Procedures in the Cisco FXOS Troubleshooting Guide for the Firepower 1000/2100 and Secure Firewall 3100/4200 with Threat Defense .

For the ISA 3000, see the Cisco Secure Firewall ASA and Secure Firewall Threat Defense Reimage Guide.

Example:


firepower login: admin
Password: Admin123
Successful login attempts for user 'admin' : 1

[...]

Hello admin. You must change your password.
Enter new password: ********
Confirm new password: ********
Your password was updated successfully.

[...]

firepower#

Step 3

(Firepower and Secure Firewall hardware models) If you connected to FXOS on the console port, connect to the FTD CLI.

connect ftd

Example:


firepower# connect ftd
>

Step 4

The first time you log in to the FTD, you are prompted to accept the End User License Agreement (EULA) and, if using an SSH connection, to change the admin password. You are then presented with the CLI setup script.

Note

 

You cannot repeat the CLI setup wizard unless you clear the configuration; for example, by reimaging. However, all of these settings can be changed later at the CLI using configure network commands. See the threat defense command reference.

Defaults or previously entered values appear in brackets. To accept previously entered values, press Enter.

Note

 

The Management interface settings are used even when you enable manager access on a data interface. For example, the management traffic that is routed over the backplane through the data interface will resolve FQDNs using the Management interface DNS servers, and not the data interface DNS servers.

See the following guidelines:

  • Do you want to configure IPv4? and/or Do you want to configure IPv6?—Enter y for at least one of these types of addresses.

  • Enter the IPv4 default gateway for the management interface and/or Enter the IPv6 gateway for the management interface—If you want to use a data interface for manager access instead of the Management interface, choose manual. Although you do not plan to use the Management interface, you must set an IP address, for example, a private address. You cannot configure a data interface for management if the management interface is set to DHCP, because the default route, which must be data-interfaces (see the next bullet), might be overwritten with one received from the DHCP server.

  • Enter the IPv4 default gateway for the management interface and/or Configure IPv6 via DHCP, router, or manually?—If you want to use a data interface for manager access instead of the management interface, set the gateway to be data-interfaces. This setting forwards management traffic over the backplane so it can be routed through the manager access data interface. If you want to use the Management interface for manager access, you should set a gateway IP address on the Management 1/1 network.

  • If your networking information has changed, you will need to reconnect—If you are connected with SSH but you change the IP address at initial setup, you will be disconnected. Reconnect with the new IP address and password. Console connections are not affected.

  • Manage the device locally?—Enter no to use the FMC. A yes answer means you will use Firepower Device Manager instead.

  • Configure firewall mode?—We recommend that you set the firewall mode at initial configuration. Changing the firewall mode after initial setup erases your running configuration. Note that data interface manager access is only supported in routed firewall mode.

Example:


You must accept the EULA to continue.
Press <ENTER> to display the EULA:
End User License Agreement
[...]

Please enter 'YES' or press <ENTER> to AGREE to the EULA: 


System initialization in progress.  Please stand by.
You must configure the network to continue.
Configure at least one of IPv4 or IPv6 unless managing via data interfaces.
Do you want to configure IPv4? (y/n) [y]:
Do you want to configure IPv6? (y/n) [y]: n
Configure IPv4 via DHCP or manually? (dhcp/manual) [manual]:
Enter an IPv4 address for the management interface [192.168.45.61]: 10.89.5.17
Enter an IPv4 netmask for the management interface [255.255.255.0]: 255.255.255.192
Enter the IPv4 default gateway for the management interface [data-interfaces]: 10.89.5.1
Enter a fully qualified hostname for this system [firepower]: 1010-3
Enter a comma-separated list of DNS servers or 'none' [208.67.222.222,208.67.220.220,2620:119:35::35]:
Enter a comma-separated list of search domains or 'none' []: cisco.com
If your networking information has changed, you will need to reconnect.
Disabling IPv6 configuration: management0
Setting DNS servers: 208.67.222.222,208.67.220.220,2620:119:35::35
Setting DNS domains:cisco.com
Setting hostname as 1010-3
Setting static IPv4: 10.89.5.17 netmask: 255.255.255.192 gateway: 10.89.5.1 on management0
Updating routing tables, please wait...
All configurations applied to the system. Took 3 Seconds.
Saving a copy of running network configuration to local disk.
For HTTP Proxy configuration, run 'configure network http-proxy'

Manage the device locally? (yes/no) [yes]: no
DHCP server is already disabled
DHCP Server Disabled
Configure firewall mode? (routed/transparent) [routed]:
Configuring firewall mode ...


Device is in OffBox mode - disabling/removing port 443 from iptables.
Update policy deployment information
    - add device configuration
    - add network discovery
    - add system policy

You can register the sensor to a Firepower Management Center and use the
Firepower Management Center to manage it. Note that registering the sensor
to a Firepower Management Center disables on-sensor Firepower Services
management capabilities.

When registering the sensor to a Firepower Management Center, a unique
alphanumeric registration key is always required.  In most cases, to register
a sensor to a Firepower Management Center, you must provide the hostname or
the IP address along with the registration key.
'configure manager add [hostname | ip address ] [registration key ]'

However, if the sensor and the Firepower Management Center are separated by a
NAT device, you must enter a unique NAT ID, along with the unique registration
key.
'configure manager add DONTRESOLVE [registration key ] [ NAT ID ]'

Later, using the web interface on the Firepower Management Center, you must
use the same registration key and, if necessary, the same NAT ID when you add
this sensor to the Firepower Management Center.
>

Step 5

Identify the FMC that will manage this FTD.

configure manager add {hostname | IPv4_address | IPv6_address | DONTRESOLVE} reg_key [nat_id]

  • {hostname | IPv4_address | IPv6_address | DONTRESOLVE}—Specifies either the FQDN or IP address of the FMC. If the FMC is not directly addressable, use DONTRESOLVE and also specify the nat_id. At least one of the devices, either the FMC or the FTD, must have a reachable IP address to establish the two-way, TLS-1.3-encrypted communication channel between the two devices. If you specify DONTRESOLVE in this command, then the FTD must have a reachable IP address or hostname.

  • reg_key—Specifies a one-time registration key of your choice that you will also specify on the FMC when you register the FTD. The registration key must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-).

  • nat_id—Specifies a unique, one-time string of your choice that you will also specify on the FMC when you register the FTD when one side does not specify a reachable IP address or hostname. For example, it is required if you set the FMC to DONTRESOLVE. It is also required if you use the data interface for management, even if you specify IP addresses. The NAT ID must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID cannot be used for any other devices registering to the FMC.

    Note

     

    If you use a data interface for management, then you must specify the NAT ID on both the FTD and FMC, even if you specify both IP addresses.

Example:


> configure manager add MC.example.com 123456
Manager successfully configured.

Example:

If the FMC is behind a NAT device, enter a unique NAT ID along with the registration key, and specify DONTRESOLVE instead of the hostname, for example: 


> configure manager add DONTRESOLVE regk3y78 natid90
Manager successfully configured.

Example:

If the FTD is behind a NAT device, enter a unique NAT ID along with the FMC IP address or hostname, for example: 


> configure manager add 10.70.45.5 regk3y78 natid56
Manager successfully configured.

Step 6

(Optional) Configure a data interface for manager access.

configure network management-data-interface

You are then prompted to configure basic network settings for the data interface.

Note

 

You should use the console port when using this command. If you use SSH to the Management interface, you might get disconnected and have to reconnect to the console port. See below for more information about SSH usage.

See the following details for using this command. See also Using the FTD Data Interface for Management.

  • The original Management interface cannot use DHCP if you want to use a data interface for management. If you did not set the IP address manually during initial setup, you can set it now using the configure network {ipv4 | ipv6} manual command. If you did not already set the Management interface gateway to data-interfaces, this command will set it now.

  • When you add the FTD to the FMC, the FMC discovers and maintains the interface configuration, including the following settings: interface name and IP address, static route to the gateway, DNS servers, and DDNS server. For more information about the DNS server configuration, see below. In the FMC, you can later make changes to the manager access interface configuration, but make sure you don't make changes that can prevent the FTD or FMC from re-establishing the management connection. If the management connection is disrupted, the FTD includes the configure policy rollback command to restore the previous deployment.

  • If you configure a DDNS server update URL, the FTD automatically adds certificates for all of the major CAs from the Cisco Trusted Root CA bundle so that the FTD can validate the DDNS server certificate for the HTTPS connection. The FTD supports any DDNS server that uses the DynDNS Remote API specification (https://help.dyn.com/remote-access-api/).

  • This command sets the data interface DNS server. The Management DNS server that you set with the setup script (or using the configure network dns servers command) is used for management traffic. The data DNS server is used for DDNS (if configured) or for security policies applied to this interface.

    On the FMC, the data interface DNS servers are configured in the Platform Settings policy that you assign to this FTD. When you add the FTD to the FMC, the local setting is maintained, and the DNS servers are not added to a Platform Settings policy. However, if you later assign a Platform Settings policy to the FTD that includes a DNS configuration, then that configuration will overwrite the local setting. We suggest that you actively configure the DNS Platform Settings to match this setting to bring the FMC and the FTD into sync.

    Also, local DNS servers are only retained by the FMC if the DNS servers were discovered at initial registration. For example, if you registered the device using the Management interface, but then later configure a data interface using the configure network management-data-interface command, then you must manually configure all of these settings in the FMC, including the DNS servers, to match the FTD configuration.

  • You can change the management interface after you register the FTD to the FMC, to either the Management interface or another data interface.

  • The FQDN that you set in the setup wizard will be used for this interface.

  • You can clear the entire device configuration as part of the command; you might use this option in a recovery scenario, but we do not suggest you use it for initial setup or normal operation.

  • To disable data management, enter the configure network management-data-interface disable command.

Example:


> configure network management-data-interface
Data interface to use for management: ethernet1/1
Specify a name for the interface [outside]:
IP address (manual / dhcp) [dhcp]:  
DDNS server update URL [none]: https://dwinchester:pa$$w0rd17@domains.example.com/nic/update?hostname=<h>&myip=<a>
Do you wish to clear all the device configuration before applying ? (y/n) [n]:

Configuration done with option to allow manager access from any network, if you wish to change the manager access network 
use the 'client' option in the command 'configure network management-data-interface'.

Setting IPv4 network configuration.
Network settings changed.

>

Example:


> configure network management-data-interface
Data interface to use for management: ethernet1/1
Specify a name for the interface [outside]: internet
IP address (manual / dhcp) [dhcp]: manual
IPv4/IPv6 address: 10.10.6.7
Netmask/IPv6 Prefix: 255.255.255.0
Default Gateway: 10.10.6.1
Comma-separated list of DNS servers [none]: 208.67.222.222,208.67.220.220
DDNS server update URL [none]:
Do you wish to clear all the device configuration before applying ? (y/n) [n]:

Configuration done with option to allow manager access from any network, if you wish to change the manager access network
use the 'client' option in the command 'configure network management-data-interface'.

Setting IPv4 network configuration.
Network settings changed.

>

Step 7

(Optional) Limit data interface access to a manager on a specific network.

configure network management-data-interface client ip_address netmask

By default, all networks are allowed.

What to do next

Register your device to a FMC.

Configure an Event Interface

You always need a management interface for management traffic. If your device has a second management interface, for example, the Firepower 4100/9300, you can enable it for event-only traffic.

Before you begin

To use a separate event interface, you also need to enable an event interface on the FMC. See the Firepower Management Center Administration Guide.

Procedure

Step 1

Enable the second management interface as an event-only interface.

configure network management-interface enable management1

configure network management-interface disable-management-channel management1

You can optionally disable events for the main management interface using the configure network management-interface disable-events-channel command. In either case, the device will try to send events on the event-only interface, and if that interface is down, it will send events on the management interface even if you disable the event channel.

You cannot disable both event and management channels on an interface.

Example:


> configure network management-interface enable management1
Configuration updated successfully

> configure network management-interface disable-management-channel management1
Configuration updated successfully

>

Step 2

Configure the IP address of the event interface.

The event interface can be on a separate network from the management interface, or on the same network.

  1. Configure the IPv4 address:

    configure network ipv4 manual ip_address netmask gateway_ip management1

    Note that the gateway_ip in this command is used to create the default route for the device, so you should enter the value you already set for the management0 interface. It does not create a separate static route for the eventing interface. If you are using an event-only interface on a different network from the management interface, we recommend that you create a static route separately for the event-only interface.

    Example:

    
> configure network ipv4 manual 10.10.10.45 255.255.255.0 10.10.10.1 management1
Setting IPv4 network configuration.
Network settings changed.

>

  2. Configure the IPv6 address:

    • Stateless autoconfiguration:

      configure network ipv6 router management1

      Example:

      
> configure network ipv6 router management1
Setting IPv6 network configuration.
Network settings changed.

>

    • Manual configuration:

      configure network ipv6 manual ip6_address ip6_prefix_length management1

      Example:

      
> configure network ipv6 manual 2001:0DB8:BA98::3210 64 management1
Setting IPv6 network configuration.
Network settings changed.

>

Step 3

Add a static route for the event-only interface if the FMC is on a remote network; otherwise, all traffic will match the default route through the management interface.

configure network static-routes {ipv4 | ipv6}add management1 destination_ip netmask_or_prefix gateway_ip

For the default route, do not use this command; you can only change the default route gateway IP address when you use the configure network ipv4 or ipv6 commands (see, Step 2).

Example:


> configure network static-routes ipv4 add management1 192.168.6.0 255.255.255.0 10.10.10.1
Configuration updated successfully

> configure network static-routes ipv6 add management1 2001:0DB8:AA89::5110 64 2001:0DB8:BA98::3211
Configuration updated successfully

>

To display static routes, enter show network-static-routes (the default route is not shown): 


> show network-static-routes
---------------[ IPv4 Static Routes ]---------------
Interface                 : management1
Destination               : 192.168.6.0
Gateway                   : 10.10.10.1
Netmask                   : 255.255.255.0
[…]

Add a Device to the FMC

Use this procedure to add a single device to the FMC. If you plan to link devices for high availability, you must still use this procedure; see Add a High Availability Pair. For clustering, see the clustering chapter for your model.

If you have established or will establish FMC high availability, add devices only to the active (or intended active) FMC. When you establish high availability, devices registered to the active FMC are automatically registered to the standby.

Before you begin

  • Set up the device to be managed by the FMC. See:

  • The FMC must be registered to the Smart Software Manager. A valid evaluation license is sufficient, but if it expires, you will not be able to add new devices until you successfully register.

  • If you registered a device using IPv4 and want to convert it to IPv6, you must delete and reregister the device.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

From the Add drop-down menu, choose Device.

Figure 10. Add Device
Add Device

Step 3

In the Host field, enter the IP address or the hostname of the device you want to add.

The hostname of the device is the fully qualified domain name or the name that resolves through the local DNS to a valid IP address. Use a hostname rather than an IP address if your network uses DHCP to assign IP addresses.

In a NAT environment, you may not need to specify the IP address or hostname of the device, if you already specified the IP address or hostname of the FMC when you configured the device to be managed by the FMC. For more information, see NAT Environments.

Note

 

In a FMC high availability environment, when both the FMCs are behind NAT, to register the device on the secondary FMC, you must specify a value in the Host field.

Step 4

In the Display Name field, enter a name for the device as you want it to display in the FMC.

Step 5

In the Registration Key field, enter the same registration key that you used when you configured the device to be managed by the FMC. The registration key is a one-time-use shared secret. The key can include alphanumeric characters and hyphens (-).

Step 6

(Optional) Add the device to a device Group.

Step 7

Choose an initial Access Control Policy to deploy to the device upon registration, or create a new policy.

If the device is incompatible with the policy you choose, deploying will fail. This incompatibility could occur for multiple reasons, including licensing mismatches, model restrictions, passive vs inline issues, and other misconfigurations. After you resolve the issue that caused the failure, manually deploy configurations to the device.

Step 8

Choose licenses to apply to the device.

You can also apply licenses after you add the device, from the System > Licenses > Smart Licenses page.

For FTDv, you must also select the Performance Tier. It’s important to choose the tier that matches the license you have in your account. Until you choose a tier, your device defaults to the FTDv50 selection. For more information about the performance-tiered license entitlements available for FTDv, see FTDv Licenses in the Firepower Management Center Administration Guide.

Note

 

If you are upgrading your FTDv to Version 7.0+, you can choose FTDv - Variable to maintain your current license compliance.

Step 9

If you used a NAT ID during device setup, in the Advanced section enter the same NAT ID in the Unique NAT ID field.

The Unique NAT ID specifies a unique, one-time string of your choice that you will also specify on the device during initial setup when one side does not specify a reachable IP address or hostname. For example, it is required if you left the Host field blank. It is also required if you use the device's data interface for management, even if you specify IP addresses. The NAT ID must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID cannot be used for any other devices registering to the FMC.

Note

 

If you use a data interface on the device for management, then you must specify the NAT ID on both the device and FMC, even if you specify both IP addresses.

Step 10

Check the Transfer Packets check box to allow the device to transfer packets to the FMC.

This option is enabled by default. When events like IPS or Snort are triggered with this option enabled, the device sends event metadata information and packet data to the FMC for inspection. If you disable it, only event information will be sent to the FMC but packet data is not sent.

Step 11

Click Register.

It may take up to two minutes for the FMC to verify the device’s heartbeat and establish communication. If the registration succeeds, the device is added to the list. If it fails, you will see an error message. If the device fails to register, check the following items:

  • Ping—Access the device CLI, and ping the FMC IP address using the following command:

    ping system ip_address

    If the ping is not successful, check your network settings using the show network command. If you need to change the device IP address, use the configure network {ipv4 | ipv6} manual command.

  • Registration key, NAT ID, and FMC IP address—Make sure you are using the same registration key, and if used, NAT ID, on both devices. You can set the registration key and NAT ID on the device using the configure manager add command.

For more troubleshooting information, see https://cisco.com/go/fmc-reg-error.

Delete (Unregister) a Device from the FMC

If you no longer want to manage a device, you can unregister it from the FMC.

To unregister a cluster, cluster node, or high availability pair, see the chapters for those deployments.

Unregistering a device:

  • Severs all communication between the FMC and the device.

  • Removes the device from the Device Management page.

  • Returns the device to local time management if the device's platform settings policy is configured to receive time from the FMC using NTP.

  • Leaves the configuration intact, so the device continues to process traffic.

    Policies, such as NAT and VPN, ACLs, and the interface configurations remain intact.

Registering the device again to the same or a different FMC causes the configuration to be removed, so the device will stop processing traffic at that point.

Before you delete the device, be sure to export the configuration so you can re-apply the device-level configuration (interfaces, routing, and so on) when you re-register it. If you do not have a saved configuration, you will have to re-configure device settings.

After you re-add the device and either import a saved configuration or re-configure your settings, you need to deploy the configuration before it starts passing traffic again.

Before you begin

To re-apply the device-level configuration if you re-add it to the FMC:

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device you want to unregister, click More (more icon), and then click Delete.

Figure 11. Delete
Delete

Step 3

Confirm that you want to unregister the device.

Step 4

You can now change your manager.

  • Re-register the device to this FMC—If you know the registration key and NAT ID, you can Add a Device to the FMC. If you need to reset them, you can reconfigure the manager as though it's new. See Identify a New FMC.

  • Register to a new FMC—Identify a New FMC.

  • Change to the FDM—Switch from FMC to FDM.

  • Delete the manager without specifying a new one—To sever the management connection on the FTD without identifying a new manager (no manager mode), from the FTD CLI use the configure manager delete command.

Add a Device Group

The FMC allows you to group devices so you can easily deploy policies and install updates on multiple devices. You can expand and collapse the list of devices in the group.

If you add the primary device in a high-availability pair to a group, both devices are added to the group. If you break the high-availability pair, both devices remain in that group.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

From the Add drop-down menu, choose Add Group.

To edit an existing group, click Edit (edit icon) for the group you want to edit.

Step 3

Enter a Name.

Step 4

Under Available Devices, choose one or more devices to add to the device group. Use Ctrl or Shift while clicking to choose multiple devices.

Step 5

Click Add to include the devices you chose in the device group.

Step 6

Optionally, to remove a device from the device group, click Delete (delete icon) next to the device you want to remove.

Step 7

Click OK to add the device group.

Shut Down or Restart the Device

It's important that you shut down your system properly. Simply unplugging the power or pressing the power switch can cause serious file system damage. Remember that there are many processes running in the background all the time, and unplugging or shutting off the power does not allow the graceful shutdown of your firewall.


Note

The ISA 3000 does not support shutting down; you can only reboot the system.

See the following task to shut down or restart your system properly.


Note

After restarting your device, you may see an error that the management connection could not be reestablished. In some cases, the connection is attempted before the Management interface on the device is ready. The connection will be retried automatically and should come up within 15 minutes.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device that you want to restart, click Edit (edit icon).

Step 3

Click Device.

Step 4

To restart the device:

  1. Click Restart Device (restart device icon).

  2. When prompted, confirm that you want to restart the device.

Step 5

To shut down the device:

  1. Click Shut Down Device (shut down device icon) in the System section.

  2. When prompted, confirm that you want to shut down the device.

  3. If you have a console connection to the firewall, monitor the system prompts as the firewall shuts down. You will see the following prompt: 

    
System is stopped.
It is safe to power off now.
Do you want to reboot instead? [y/N]

    If you do not have a console connection, wait approximately 3 minutes to ensure the system has shut down.

Configure Device Settings

The Devices > Device Management page provides you with range of information and options:

  • View By—Use this option to view the devices based on group, licenses, model, or access control policy.

  • Device State—You can also view the devices based on its state. You can click on a state icon to view the devices belonging to it. The number of devices belonging to the states are provided within brackets.

  • Search—You can search for a configured device by providing the device name, host name, or the IP address.

  • Add options—You can add devices, high availability pairs, clusters and groups.

  • Edit and other actions—Against each configured device, use the Edit (edit icon) icon to edit the device parameters and attributes. Click the More (more icon) icon and execute other actions:

    • Access Control Policy—Click on the link in the Access Control Policy column to view the policy that is deployed to the device.

    • Delete—To unregister the device.

    • Packet Tracer—To navigate to the packet tracer page for examining policy configuration on the device by injecting a model packet into the system.

    • Packet Capture—To navigate to the packet capture page, where, you can view the verdicts and actions the system takes while processing a packet.

    • Revert Upgrade—To revert the upgrade and configuration changes that were made after the last upgrade. This action results in restoring the device to the version that was before the upgrade.

    • Health Monitor—To navigate to the device's health monitoring page.

    • Troubleshooting Files—Generate troubleshooting files, where you can choose the type of data to be included in the report.

    • For Firepower 4100/9300 series devices, a link to the Firepower Chassis Manager web interface.

When you click on the device, the device properties page appears with several tabs. You can use the tabs to view the device information, and configure routing, interfaces, inline sets, and DHCP.

Edit General Settings

The General section of the Device page displays the settings described in the table below.

Table 2. General Section Table Fields

Field

Description

Name

The display name of the device on the FMC.

Transfer Packets

This displays whether or not the managed device sends packet data with the events to the FMC.

Mode

The displays the mode of the management interface for the device: routed or transparent.

Compliance Mode

This displays the security certifications compliance for a device. Valid values are CC, UCAPL and None.

TLS Crypto Acceleration:

Shows whether TLS crypto acceleration is enabled or disabled.

Device Configuration

Lets you copy, export, or import a configuration. See Copy a Configuration to Another Device and Export and Import the Device Configuration.

You can edit some of these settings from this section.

Procedure

Step 1

Choose Devices > Device Management. 

Step 2

Next to the device you want to modify, click Edit (edit icon).

Step 3

Click Device. 

Step 4

In the General section, click Edit (edit icon). 

  1. Enter a Name for the managed device. 

  2. Check Transfer Packets to allow packet data to be stored with events on the FMC.

  3. Click Force Deploy to force deployment of current policies and device configuration to the device. 

    Note

     

    Force-deploy consumes more time than the regular deployment since it involves the complete generation of the policy rules to be deployed on the FTD.

Step 5

For Device Configuration actions, see Copy a Configuration to Another Device and Export and Import the Device Configuration.

Step 6

Click Deploy. 

What to do next

Copy a Configuration to Another Device

When a new device is deployed in the network you can easily copy configurations and policies from a pre-configured device, instead of manually reconfiguring the new device.
Before you begin

Confirm that:

  • The source and destination FTD devices are the same model and are running the same version of the software.

  • The source is either a standalone Firepower Threat Defense device or a Firepower Threat Defense high availability pair.

  • The destination device is a standalone FTD device.

  • The source and destination FTD devices have the same number of physical interfaces.

  • The source and destination FTD devices are in the same firewall mode - routed or transparent.

  • The source and destination FTD devices are in the same security certifications compliance mode.

  • The source and destination FTD devices are in the same domain.

  • Configuration deployment is not in progress on either the source or the destination FTD devices.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device you want to modify, click Edit (edit icon).

Step 3

Click Device.

Step 4

In the General section, do one of the following:

  • Click Get Device Configuration (get device configuration icon) to copy device configuration from another device to the new device. On the Get Device Configuration page, select the source device in the Select Device drop-down list.
  • Click Push Device Configuration (push device configuration icon) to copy device configuration from the current device to the new device. On the Push Device Configuration page, select the destination to which configuration is to be copied in the Target Device drop-down list.

Step 5

(Optional) Check Include shared policies configuration check box to copy policies.

Shared policies like AC policy, NAT, Platform Settings and FlexConfig policies can be shared across multiple devices.

Step 6

Click OK.

You can monitor the status of the copy device configuration task on Tasks in the Message Center.

When the copy device configuration task is initiated, it erases the configuration on the target device and copies the configuration of the source device to the destination device.

Warning
When you have completed the copy device configuration task, you cannot revert the target device to its original configuration.

Export and Import the Device Configuration

You can export all of the the device-specific configuration configurable on the Device pages, including:

  • Interfaces

  • Inline Sets

  • Routing

  • DHCP

  • VTEP

  • Associated objects

You can then import the saved configuration for the same device in the following use cases:

  • Moving the device to a different FMC—First delete the device from the original FMC, then add the device to the new FMC. Then you can import the saved configuration.

  • Moving the device between domains—When you move a device between domains, some device-specific configuration is not retained because supporting objects (such as interface groups for security zones) do not exist in the new domain. By importing the configuration after the domain move, any necessary objects are created for that domain, and the device configuration is restored.

  • Restore an old configuration—If you deployed changes that negatively impacted the operation of the device, you can import a backup copy of a known working configuration to restore a previous operational state.

  • Reregistering a device—If you delete a device from the FMC, but then want to add it back, you can import the saved configuration.

See the following guidelines:

  • You can only import the configuration to the same device (the UUID must match). You cannot import a configuration to a different device, even if it is the same model.

  • Do not change the version running on the device between exporting and importing; the version must match.

  • When moving the device to a different FMC, the target FMC version must be the same as the source version.

  • If an object doesn't exist, it will be created. If an object exists, but the value is different, see below:

    Table 3. Object Import Action

    Scenario

    Import Action

    Object exists with the same name and value.

    Reuse existing objects.

    Object exists with the same name but different value.

    Network and Port objects: Create object overrides for this device. See Object Overrides.

    Interface objects: Create new objects. For example, if both the type (security zone or interface group) and the interface type (routed or switched, for example) do not match, then a new object is created.

    All other objects: Reuse existing objects even though the values are different.

    Object doesn't exist.

    Create new object.s
Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device you want to edit, click Edit (edit icon).

Step 3

Click Device.

Step 4

Export the configuration.

  1. In the General area, click Export.

    Figure 12. Export Device Configuration
    Export Device Configuration

    You are prompted to acknowledge the export; click OK.

    Figure 13. Acknowledge Export
    Acknowldge Export

    You can view the export progress in the Tasks page.

  2. On the Notifications > Tasks page, ensure that the export has completed; click Download Export Package. Alternatively, you can click the Download button in the General area.

    Figure 14. Export Task
    Export Task

    You are prompted to download the package; click Click here to download the package to save the file locally, and then click OK to exit the dialog box.

    Figure 15. Download Package
    Download Package

Step 5

Import the configuration.

  1. In the General area, click Import.

    Figure 16. Import Device Configuration
    Import Device Configuration

    You are prompted to acknowledge that the current configuration will be replace. Click Yes, and then navigate to the configuration package (with the suffix .sfo; note that this file is different from the Backup/Restore files).

    Figure 17. Import Package
    Import Package
    Figure 18. Navigate to Package
    Navigate to Package

    You are prompted to acknowledge the import; click OK.

    Figure 19. Acknowledge Import
    Acknowledge Import

    You can view the import progress in the Tasks page.

  2. View the import reports so you can see what was imported. On the Notifications > Tasks page for the import task, click View Import Report.

    Figure 20. View Import Report
    View Import Report

    The Device Configuration Import Reports page provides links to available reports.

Edit License Settings

The License section of the Device page displays the licenses enabled for the device.

You can enable licenses on your device if you have available licenses on your FMC.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device where you want to enable or disable licenses, click Edit (edit icon).

In a multidomain deployment, if you are not in a leaf domain, the system prompts you to switch.

Step 3

Click Device.

Step 4

In the License section, click Edit (edit icon).

Step 5

Check or clear the check box next to the license you want to enable or disable for the managed device.

Step 6

Click Save.

What to do next

View System Information

The System section of the Device page displays a read-only table of system information, as described in the following table.

You can also shut down or restart the device.

Table 4. System Section Table Fields

Field

Description

Model

The model name and number for the managed device.

Serial

The serial number of the chassis of the managed device.

Time

The current system time of the device.

Time Zone

Shows the time zone.

Version

The version of the software currently installed on the managed device.

Time Zone setting for time-based rules

The current system time of the device, in the time zone specified in device platform settings.

View Health Information

The Health section of the Device page displays the information described in the table below.

Table 5. Health Section Table Fields

Field

Description

Status

An icon that represents the current health status of the device. Clicking the icon displays the Health Monitor for the appliance.

Policy

A link to a read-only version of the health policy currently deployed at the device.

Excluded

A link to the Health Exclude page, where you can enable and disable health exclusion modules.

Edit Management Settings

You can edit management settings in the Management area.

Update the Hostname or IP Address in FMC

If you edit the hostname or IP address of a device after you added it to the FMC (using the device’s CLI, for example), you need to use the procedure below to manually update the hostname or IP address on the managing FMC.

To change the device management IP address on the device, see Modify FTD Management Interfaces at the CLI.

If you used only the NAT ID when registering the device, then the IP shows as NO-IP on this page, and you do not need to update the IP address/hostname.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device where you want to modify management options, click Edit (edit icon).

Step 3

Click Device, and view the Management area.

Step 4

Disable management temporarily by clicking the slider so it is disabled (slider disabled).

You are prompted to proceed with disabling management; click Yes.

Disabling management blocks the connection between the FMC and the device, but does not delete the device from the FMC.

Step 5

Edit the Host IP address or hostname by clicking Edit (edit icon).

Step 6

In the Management dialog box, modify the name or IP address in the Host field, and click Save.

Figure 21. Management IP Address
Management IP Address

Step 7

Reenable management by clicking the slider so it is enabled (slider enabled).

Figure 22. Enable Management Connection
Enable Management Connection

Change the Manager Access Interface from Management to Data

You can manage the FTD from either the dedicated Management interface, or from a data interface. If you want to change the manager access interface after you added the device to the FMC, follow these steps to migrate from the Management interface to a data interface. To migrate the other direction, see Change the Manager Access Interface from Data to Management.

Initiating the manager access migration from Management to data causes the FMC to apply a block on deployment to the FTD. To remove the block, enable manager access on the data interface.

See the following steps to enable manager access on a data interface, and also configure other required settings.

Procedure

Step 1

Initiate the interface migration.

  1. On the Devices > Device Management page, click Edit (edit icon) for the device.

  2. Go to the Device > Management section, and click the link for FMC Access Interface.

    The FMC Access Interface field shows the current Management interface. When you click the link, choose the new interface type, Data Interface, in the Manage device by drop-down list.

  3. Click Save.

    You must now complete the remaining steps in this procedure to enable manager access on the data interface. The Management area now shows FMC Access Interface: Data Interface, and FMC Access Details: Configuration.

    Figure 23. FMC Access
    FMC Access

    If you click Configuration, the FMC Access - Configuration Details dialog box opens. The FMC Access Mode shows a Deploy pending state.

Step 2

Enable manager access on a data interface on the Devices > Device Management > Interfaces > Edit Physical Interface > FMC Access page.

See Configure Routed Mode Interfaces. You can enable manager access on one routed data interface. Make sure this interface is fully configured with a name and IP address and that it is enabled.

Step 3

(Optional) If you use DHCP for the interface, enable the web type DDNS method on the Devices > Device Management > DHCP > DDNS page.

See Configure Dynamic DNS. DDNS ensures the FMC can reach the FTD at its Fully-Qualified Domain Name (FQDN) if the FTD's IP address changes.

Step 4

Make sure the FTD can route to the FMC through the data interface; add a static route if necessary on Devices > Device Management > Routing > Static Route.

See Add a Static Route.

Step 5

(Optional) Configure DNS in a Platform Settings policy, and apply it to this device at Devices > Platform Settings > DNS.

See DNS. DNS is required if you use DDNS. You may also use DNS for FQDNs in your security policies.

Step 6

(Optional) Enable SSH for the data interface in a Platform Settings policy, and apply it to this device at Devices > Platform Settings > Secure Shell.

See Secure Shell. SSH is not enabled by default on the data interfaces, so if you want to manage the FTD using SSH, you need to explicitly allow it.

Step 7

Deploy configuration changes; see Deploy Configuration Changes.

The FMC will deploy the configuration changes over the current Management interface. After the deployment, the data interface is now ready for use, but the original management connection to Management is still active.

Step 8

At the FTD CLI (preferably from the console port), set the Management interface to use a static IP address and set the gateway to use the data interfaces.

configure network {ipv4 | ipv6} manual ip_address netmask data-interfaces

  • ip_address netmask —Although you do not plan to use the Management interface, you must set a static IP address, for example, a private address so that you can set the gateway to data-interfaces (see the next bullet). You cannot use DHCP because the default route, which must be data-interfaces, might be overwritten with one received from the DHCP server.

  • data-interfaces —This setting forwards management traffic over the backplane so it can be routed through the manager access data interface.

We recommend that you use the console port instead of an SSH connection because when you change the Management interface network settings, your SSH session will be disconnected.

Step 9

If necessary, re-cable the FTD so it can reach the FMC on the data interface.

Step 10

In the FMC, disable the management connection, update the Host IP address for the FTD in the Devices > Device Management > Device > Management section, and reenable the connection.

See Update the Hostname or IP Address in FMC. If you used the FTD hostname or just the NAT ID when you added the FTD to the FMC, you do not need to update the value; however, you need to disable and reenable the management connection to restart the connection.

Step 11

Ensure the management connection is reestablished.

In the FMC, check the management connection status on the Devices > Device Management > Device > Management > FMC Access - Configuration Details > Connection Status page.

At the FTD CLI, enter the sftunnel-status-brief command to view the management connection status.

The following status shows a successful connection for a data interface, showing the internal "tap_nlp" interface.

If it takes more than 10 minutes to reestablish the connection, you should troubleshoot the connection. See Troubleshoot Management Connectivity on a Data Interface.

Change the Manager Access Interface from Data to Management

You can manage the FTD from either the dedicated Management interface, or from a data interface. If you want to change the manager access interface after you added the device to the FMC, follow these steps to migrate from a data interface to the Management interface. To migrate the other direction, see Change the Manager Access Interface from Management to Data.

Initiating the manager access migration from data to Management causes the FMC to apply a block on deployment to the FTD. You must disable manager access on the data interface to remove the block.

See the following steps to disable manager access on a data interface, and also configure other required settings.

Procedure

Step 1

Initiate the interface migration.

  1. On the Devices > Device Management page, click Edit (edit icon) for the device.

  2. Go to the Device > Management section, and click the link for FMC Access Interface.

    The FMC Access Interface field shows the current management interface as data. When you click the link, choose the new interface type, Management Interface, in the Manage device by drop-down list.

  3. Click Save.

    You must now complete the remaining steps in this procedure to enable manager access on the Management interface. The Management area now shows the FMC Access Interface: Management Interface, and FMC Access Details: Configuration.

    Figure 24. FMC Access
    FMC Access

    If you click Configuration, the FMC Access - Configuration Details dialog box opens. The FMC Access Mode shows a Deploy pending state.

    Figure 25. FMC Access Mode
    FMC Access Mode

Step 2

Disable manager access on the data interface on the Devices > Device Management > Interfaces > Edit Physical Interface > FMC Access page.

See Configure Routed Mode Interfaces. This step removes the block on deployment.

Step 3

If you have not already done so, configure DNS settings for the data interface in a Platform Setting policy, and apply it to this device at Devices > Platform Settings > DNS.

See DNS. The FMC deployment that disables manager access on the data interface will remove any local DNS configuration. If that DNS server is used in any security policy, such as an FQDN in an Access Rule, then you must re-apply the DNS configuration using the FMC.

Step 4

Deploy configuration changes; see Deploy Configuration Changes.

The FMC will deploy the configuration changes over the current data interface.

Step 5

If necessary, re-cable the FTD so it can reach the FMC on the Management interface.

Step 6

At the FTD CLI, configure the Management interface IP address and gateway using a static IP address or DHCP.

When you originally configured the data interface for manager access, the Management gateway was set to data-interfaces, which forwarded management traffic over the backplane so it could be routed through the manager access data interface. You now need to set an IP address for the gateway on the management network.

Static IP address:

configure network {ipv4 | ipv6} manual ip_address netmask gateway_ip

DHCP:

configure network{ipv4 | ipv6} dhcp

Step 7

In the FMC, disable the management connection, update the Host IP address for the FTD in the Devices > Device Management > Device > Management section, and reenable the connection.

See Update the Hostname or IP Address in FMC. If you used the FTD hostname or just the NAT ID when you added the FTD to the FMC, you do not need to update the value; however, you need to disable and re-enable the management connection to restart the connection.

Step 8

Ensure the management connection is reestablished.

In the FMC, check the management connection status on the Devices > Device Management > Device > Management > Status field or view notifications in the FMC.

At the FTD CLI, enter the sftunnel-status-brief command to view the management connection status.

If it takes more than 10 minutes to reestablish the connection, you should troubleshoot the connection. See Troubleshoot Management Connectivity on a Data Interface.

View Manager Access Details for Data Interface Management

Model Support—FTD

When you use a data interface for FMC management instead of using the dedicated Management interface, you must be careful about changing the interface and network settings for the device in the FMC so you do not disrupt the connection. You can also change the data interface settings locally on the device, which requires you to reconcile those changes in the FMC manually. The Devices > Device Management > Device > Management > FMC Access - Configuration Details dialog box helps you resolve any discrepancies between the FMC and the FTD local configuration.

Normally, you configure the manager access data interface as part of initial FTD setup before you add the FTD to the FMC. When you add the FTD to the FMC, the FMC discovers and maintains the interface configuration, including the following settings: interface name and IP address, static route to the gateway, DNS servers, and DDNS server. For the DNS server, the configuration is maintained locally if it is discovered during registration, but it is not added to the Platform Settings policy in FMC.

After you add the FTD to the FMC, if you change the data interface settings on the FTD locally using the configure network management-data-interface command, then the FMC detects the configuration changes, and blocks deployment to the FTD. The FMC detects the configuration changes using one of the following methods:

  • Deploy to the FTD. Before the FMC deploys, it will detect the configuration differences and stop the deployment.

  • The Sync button in the Interfaces page.

  • The Refresh button on the FMC Access - Configuration Details dialog box.

To remove the block, you must go to the FMC Access - Configuration Details dialog box and click Acknowledge. The next time you deploy, the FMC configuration will overwrite any remaining conflicting settings on the FTD. It is your responsibility to manually fix the configuration in the FMC before you re-deploy.

See the following pages on this dialog box.

Configuration

View the configuration comparison of the manager access data interface on the FMC and the FTD.

The following example shows the configuration details of the FTD where the configure network management-data-interface command was entered on the FTD. The pink highlights show that if you Acknowledge the differences but do not match the configuration in the FMC, then the FTD configuration will be removed. The blue highlights show configurations that will be modified on the FTD. The green highlights show configurations that will be added to the FTD.

The following example shows this page after configuring the interface in the FMC; the interface settings match, and the pink highlight was removed.

CLI Output

View the CLI configuration of the manager access data interface, which is useful if you are familiar with the underlying CLI.

Connection Status

View management connection status. The following example shows that the management connection is still using the Management "br1" interface.

The following status shows a successful connection for a data interface, showing the internal "tap_nlp" interface.

See the following sample output for a connection that is down; there is no peer channel "connected to" information, nor heartbeat information shown: 


> sftunnel-status-brief
PEER:10.10.17.202
Registration: Completed.
Connection to peer '10.10.17.202' Attempted at Mon Jun 15 09:21:57 2020 UTC
Last disconnect time : Mon Jun 15 09:19:09 2020 UTC
Last disconnect reason : Both control and event channel connections with peer went down

See the following sample output for a connection that is up, with peer channel and heartbeat information shown: 


> sftunnel-status-brief
PEER:10.10.17.202
Peer channel Channel-A is valid type (CONTROL), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Peer channel Channel-B is valid type (EVENT), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Registration: Completed.
IPv4 Connection to peer '10.10.17.202' Start Time: Wed Jun 10 14:27:12 2020 UTC
Heartbeat Send Time: Mon Jun 15 09:02:08 2020 UTC
Heartbeat Received Time: Mon Jun 15 09:02:16 2020 UTC

Modify FTD Management Interfaces at the CLI

Modify the management interface settings on the managed device using the CLI. Many of these settings are ones that you set when you performed the initial setup; this procedure lets you change those settings, and set additional settings such as enabling an event interface if your model supports it, or adding static routes.


Note

This topic applies to the dedicated Management interface. You can alternatively configure a data interface for management. If you want to change network settings for that interface, you should do so within FMC and not at the CLI. If you need to troubleshoot a disrupted management connection, and need to make changes directly on the FTD, see Modify the FTD Data Interface Used for Management at the CLI.

For information about the FTD CLI, see the Cisco Secure Firewall Threat Defense Command Reference.


Note

When using SSH, be careful when making changes to the management interface; if you cannot re-connect because of a configuration error, you will need to access the device console port.


Note

If you change the device management IP address, then see the following tasks for FMC connectivity depending on how you identified the FMC during initial device setup using the configure manager add command (see Identify a New FMC):

  • IP address—No action. If you identified the FMC using a reachable IP address, then the management connection will be reestablished automatically after several minutes. We recommend that you also change the device IP address shown in FMC to keep the information in sync; see Update the Hostname or IP Address in FMC. This action can help the connection reestablish faster. Note: If you specified an unreachable FMC IP address, then see the procedure for NAT ID below.

  • NAT ID only—Manually reestablish the connection. If you identified the FMC using only the NAT ID, then the connection cannot be automatically reestablished. In this case, change the device management IP address in FMC according to Update the Hostname or IP Address in FMC.


Note

In a High Availability FMC configuration, when you modify the management IP address from the device CLI or from the FMC, the secondary FMC does not reflect the changes even after an HA synchronization. To ensure that the secondary FMC is also updated, switch roles between the two FMCs, making the secondary FMC the active unit. Modify the management IP address of the registered device on the device management page of the now active FMC.

Before you begin
Procedure

Step 1

Connect to the device CLI, either from the console port or using SSH.

See Log Into the Command Line Interface on the Device.

Step 2

Log in with the Admin username and password.

Step 3

(Firepower 4100/9300 only) Enable the second management interface as an event-only interface.

configure network management-interface enable management1

configure network management-interface disable-management-channel management1

You always need a management interface for management traffic. If your device has a second management interface, you can enable it for event-only traffic.

You can optionally disable events for the main management interface using the configure network management-interface disable-events-channel command. In either case, the device will try to send events on the event-only interface, and if that interface is down, it will send events on the management interface even if you disable the event channel.

You cannot disable both event and management channels on an interface.

To use a separate event interface, you also need to enable an event interface on the FMC. See the Firepower Management Center Administration Guide.

Example:

> configure network management-interface enable management1
Configuration updated successfully

> configure network management-interface disable-management-channel management1
Configuration updated successfully

>

Step 4

Configure the IP address of the management interface and/or event interface:

If you do not specify the management_interface argument, then you change the network settings for the default management interface. When configuring an event interface, be sure to specify the management_interface argument. The event interface can be on a separate network from the management interface, or on the same network. If you are connected to the interface you are configuring, you will be disconnected. You can re-connect to the new IP address.

  1. Configure the IPv4 address:

    • Manual configuration:

      configure network ipv4 manual ip_address netmask gateway_ip [management_interface]

      Note that the gateway_ip in this command is used to create the default route for the device. If you configure an event-only interface, then you must enter the gateway_ip as part of the command; however, this entry just configures the default route to the value you specify and does not create a separate static route for the eventing interface. If you are using an event-only interface on a different network from the management interface, we recommend that you set the gateway_ip for use with the management interface, and then create a static route separately for the event-only interface using the configure network static-routes command.

      Example:

      
> configure network ipv4 manual 10.10.10.45 255.255.255.0 10.10.10.1 management1
Setting IPv4 network configuration.
Network settings changed.

>

    • DHCP (supported on the default management interface only):

      configure network ipv4 dhcp

  2. Configure the IPv6 address:

    • Stateless autoconfiguration:

      configure network ipv6 router [management_interface]

      Example:

      
> configure network ipv6 router management0
Setting IPv6 network configuration.
Network settings changed.

>

    • Manual configuration:

      configure network ipv6 manual ip6_address ip6_prefix_length [ip6_gateway_ip] [management_interface]

      Note that the ipv6_gateway_ip in this command is used to create the default route for the device. If you configure an event-only interface, then you must enter the ipv6_gateway_ip as part of the command; however, this entry just configures the default route to the value you specify and does not create a separate static route for the eventing interface. If you are using an event-only interface on a different network from the management interface, we recommend that you set the ipv6_gateway_ip for use with the management interface, and then create a static route separately for the event-only interface using the configure network static-routes command.

      Example:

      
> configure network ipv6 manual 2001:0DB8:BA98::3210 64 management1
Setting IPv6 network configuration.
Network settings changed.

>

    • DHCPv6 (supported on the default management interface only):

      configure network ipv6 dhcp

Step 5

For IPv6, enable or disable ICMPv6 Echo Replies and Destination Unreachable messages. These messages are enabled by default.

configure network ipv6 destination-unreachable {enable | disable}

configure network ipv6 echo-reply {enable | disable}

You might want to disable these packets to guard against potential denial of service attacks. Disabling Echo Reply packets means you cannot use IPv6 ping to the device management interfaces for testing purposes.

Example:

> configure network ipv6 destination-unreachable disable
> configure network ipv6 echo-reply disable

Step 6

Enable a DHCP server on the default management interface to provide IP addresses to connected hosts:

configure network ipv4 dhcp-server-enable start_ip_address end_ip_address

Example:

> configure network ipv4 dhcp-server-enable 10.10.10.200 10.10.10.254
DHCP Server Enabled

>

You can only configure a DHCP server when you set the management interface IP address manually. This command is not supported on the FMCv. To display the status of the DHCP server, enter show network-dhcp-server: 


> show network-dhcp-server
DHCP Server Enabled
10.10.10.200-10.10.10.254

Step 7

Add a static route for the event-only interface if the FMC is on a remote network; otherwise, all traffic will match the default route through the management interface.

configure network static-routes {ipv4 | ipv6}add management_interface destination_ip netmask_or_prefix gateway_ip

For the default route, do not use this command; you can only change the default route gateway IP address when you use the configure network ipv4 or ipv6 commands (see Step 4).

Example:

> configure network static-routes ipv4 add management1 192.168.6.0 255.255.255.0 10.10.10.1
Configuration updated successfully

> configure network static-routes ipv6 add management1 2001:0DB8:AA89::5110 64 2001:0DB8:BA98::3211
Configuration updated successfully

>

To display static routes, enter show network-static-routes (the default route is not shown): 


> show network-static-routes
---------------[ IPv4 Static Routes ]---------------
Interface                 : management1
Destination               : 192.168.6.0
Gateway                   : 10.10.10.1
Netmask                   : 255.255.255.0
[…]

Step 8

Set the hostname:

configure network hostname name

Example:

> configure network hostname farscape1.cisco.com

Syslog messages do not reflect a new hostname until after a reboot.

Step 9

Set the search domains:

configure network dns searchdomains domain_list

Example:

> configure network dns searchdomains example.com,cisco.com

Set the search domain(s) for the device, separated by commas. These domains are added to hostnames when you do not specify a fully-qualified domain name in a command, for example, ping system . The domains are used only on the management interface, or for commands that go through the management interface.

Step 10

Set up to 3 DNS servers, separated by commas:

configure network dns servers dns_ip_list

Example:

> configure network dns servers 10.10.6.5,10.20.89.2,10.80.54.3

Step 11

Set the remote management port for communication with the FMC:

configure network management-interface tcpport number

Example:

> configure network management-interface tcpport 8555

The FMC and managed devices communicate using a two-way, TLS-1.3-encrypted communication channel, which by default is on port 8305.

Note

 

Cisco strongly recommends that you keep the default settings for the remote management port, but if the management port conflicts with other communications on your network, you can choose a different port. If you change the management port, you must change it for all devices in your deployment that need to communicate with each other.

Step 12

(FTD only) Set the management or eventing interface MTU. The MTU is 1500 bytes by default.

configure network mtu [bytes] [interface_id]

  • bytes —Sets the MTU in bytes. For the management interface, the value can be between 64 and 1500 if you enable IPv4, and 1280 to 1500 if you enable IPv6. For the eventing interface, the value can be between 64 and 9000 if you enable IPv4, and 1280 to 9000 if you enable IPv6. If you enable both IPv4 and IPv6, then the minimum is 1280. If you do not enter the bytes , you are prompted for a value.

  • interface_id —Specifies the interface ID on which to set the MTU. Use the show network command to see available interface IDs, for example management0, management1, br1, and eth0, depending on the platform. If you do not specify an interface, then the management interface is used.

Example:
> configure network mtu 8192 management1
MTU set successfully to 1500 from 8192 for management1
Refreshing Network Config...
NetworkSettings::refreshNetworkConfig MTU value at start 8192

Interface management1 speed is set to '10000baseT/Full'
NetworkSettings::refreshNetworkConfig MTU value at end 8192
>

Step 13

Configure an HTTP proxy. The device is configured to directly-connect to the internet on ports TCP/443 (HTTPS) and TCP/80 (HTTP). You can use a proxy server, to which you can authenticate via HTTP Digest. After issuing the command, you are prompted for the HTTP proxy address and port, whether proxy authentication is required, and if it is required, the proxy username, proxy password, and confirmation of the proxy password.

Note

 
For proxy password on FTD, you can use A-Z, a-z, and 0-9 characters only.

configure network http-proxy

Example:

> configure network http-proxy
Manual proxy configuration
Enter HTTP Proxy address: 10.100.10.10
Enter HTTP Proxy Port: 80
Use Proxy Authentication? (y/n) [n]: Y
Enter Proxy Username: proxyuser
Enter Proxy Password: proxypassword
Confirm Proxy Password: proxypassword

Step 14

If you change the device management IP address, then see the following tasks for FMC connectivity depending on how you identified the FMC during initial device setup using the configure manager add command (see Identify a New FMC):

  • IP address—No action. If you identified the FMC using a reachable IP address, then the management connection will be reestablished automatically after several minutes. We recommend that you also change the device IP address shown in FMC to keep the information in sync; see Update the Hostname or IP Address in FMC. This action can help the connection reestablish faster. Note: If you specified an unreachable FMC IP address, then you must manually reestablish the connection using Update the Hostname or IP Address in FMC.

  • NAT ID only—Manually reestablish the connection. If you identified the FMC using only the NAT ID, then the connection cannot be automatically reestablished. In this case, change the device management IP address in FMC according to Update the Hostname or IP Address in FMC.

Modify the FTD Data Interface Used for Management at the CLI

If the management connection between the FTD and the FMC was disrupted, and you want to specify a new data interface to replace the old interface, use the FTD CLI to configure the new interface. This procedure assumes you want to replace the old interface with a new interface on the same network. If the management connection is active, then you should make any changes to an existing data interface using the FMC. For initial setup of the data management interface, see the configure network management-data-interface command in Complete the FTD Initial Configuration Using the CLI.


Note

This topic applies to the data interface that you configured for Management, not the dedicated Management interface. If you want to change network settings for the Management interface, see Modify FTD Management Interfaces at the CLI.

For information about the FTD CLI, see the Cisco Secure Firewall Threat Defense Command Reference.

Before you begin

You can create user accounts that can log into the CLI using the configure user add command; see Add an Internal User at the CLI. You can also configure AAA users according to External Authentication.

Procedure

Step 1

If you are changing the data management interface to a new interface, move the current interface cable to the new interface.

Step 2

Connect to the device CLI.

You should use the console port when using these commands. If you are performing initial setup, then you may be disconnected from the Management interface. If you are editing the configuration due to a disrupted management connection, and you have SSH access to the dedicated Management interface, then you can use that SSH connection.

See Log Into the Command Line Interface on the Device.

Step 3

Log in with the Admin username and password.

Step 4

Disable the interface so you can reconfigure its settings.

configure network management-data-interface disable

Example:

> configure network management-data-interface disable

 Configuration updated successfully..!!


Configuration disable was successful, please update the default route to point to a gateway on management interface using the command 'configure network'

Step 5

Configure the new data interface for manager access.

configure network management-data-interface

You are then prompted to configure basic network settings for the data interface.

When you change the data management interface to a new interface on the same network, use the same settings as for the previous interface except the interface ID. In addition, for the Do you wish to clear all the device configuration before applying ? (y/n) [n]: option, choose y. This choice will clear the old data management interface configuration, so that you can successfully reuse the IP address and interface name on the new interface. 


> configure network management-data-interface
Data interface to use for management: ethernet1/4
Specify a name for the interface [outside]: internet
IP address (manual / dhcp) [dhcp]: manual
IPv4/IPv6 address: 10.10.6.7
Netmask/IPv6 Prefix: 255.255.255.0
Default Gateway: 10.10.6.1
Comma-separated list of DNS servers [none]: 208.67.222.222,208.67.220.220
DDNS server update URL [none]:
Do you wish to clear all the device configuration before applying ? (y/n) [n]: y

Configuration done with option to allow manager access from any network, if you wish to change the manager access network
use the 'client' option in the command 'configure network management-data-interface'.

Setting IPv4 network configuration.
Network settings changed.

>

Step 6

(Optional) Limit data interface access to the FMC on a specific network.

configure network management-data-interface client ip_address netmask

By default, all networks are allowed.

Step 7

The connection will be reestablished automatically, but disabling and reenabling the connection in the FMC will help the connection reestablish faster. See Update the Hostname or IP Address in FMC.

Step 8

Check that the management connection was reestablished.

sftunnel-status-brief

See the following sample output for a connection that is up, with peer channel and heartbeat information shown: 


> sftunnel-status-brief
PEER:10.10.17.202
Peer channel Channel-A is valid type (CONTROL), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Peer channel Channel-B is valid type (EVENT), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Registration: Completed.
IPv4 Connection to peer '10.10.17.202' Start Time: Wed Jun 10 14:27:12 2020 UTC
Heartbeat Send Time: Mon Jun 15 09:02:08 2020 UTC
Heartbeat Received Time: Mon Jun 15 09:02:16 2020 UTC

Step 9

In the FMC, choose Devices > Device Management > Device > Management > FMC Access - Configuration Details, and click Refresh.

The FMC detects the interface and default route configuration changes, and blocks deployment to the FTD. When you change the data interface settings locally on the device, you must reconcile those changes in the FMC manually. You can view the discrepancies between the FMC and the FTD on the Configuration tab.

Step 10

Choose Devices > Device Management > Interfaces, and make the following changes.

  1. Remove the IP address and name from the old data management interface, and disable manager access for this interface.

  2. Configure the new data management interface with the settings of the old interface (the ones you used at the CLI), and enable manager access for it.

Step 11

Choose Devices > Device Management > Routing > Static Route and change the default route from the old data management interface to the new one.

Step 12

Return to the FMC Access - Configuration Details dialog box, and click Acknowledge to remove the deployment block.

The next time you deploy, the FMC configuration will overwrite any remaining conflicting settings on the FTD. It is your responsibility to manually fix the configuration in the FMC before you re-deploy.

You will see expected messages of "Config was cleared” and “FMC access changed and acknowledged.”

Roll Back the Configuration if the FMC Loses Connectivity

If you use a data interface on the FTD for manager access, and you deploy a configuration change from the FMC that affects the network connectivity, you can roll back the configuration on the FTD to the last-deployed configuration so you can restore management connectivity. You can then adjust the configuration settings in FMC so that the network connectivity is maintained, and re-deploy. You can use the rollback feature even if you do not lose connectivity; it is not limited to this troubleshooting situation.

See the following guidelines:

  • Only the previous deployment is available locally on the FTD; you cannot roll back to any earlier deployments.

  • Rollback is not supported for high availability or clustering deployments.

  • The rollback only affects configurations that you can set in the FMC. For example, the rollback does not affect any local configuration related to the dedicated Management interface, which you can only configure at the FTD CLI. Note that if you changed data interface settings after the last FMC deployment using the configure network management-data-interface command, and then you use the rollback command, those settings will not be preserved; they will roll back to the last-deployed FMC settings.

  • UCAPL/CC mode cannot be rolled back.

  • Out-of-band SCEP certificate data that was updated during the previous deployment cannot be rolled back.

  • During the rollback, connections will drop because the current configuration will be cleared.

Procedure

Step 1

At the FTD CLI, roll back to the previous configuration.

configure policy rollback

After the rollback, the FTD notifies the FMC that the rollback was completed successfully. In the FMC, the deployment screen will show a banner stating that the configuration was rolled back.

Note

 

If the rollback failed and the FMC management is restored, refer to https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw-virtual/215258-troubleshooting-firepower-threat-defense.html for common deployment problems. In some cases, the rollback can fail after the FMC management access is restored; in this case, you can resolve the FMC configuration issues, and redeploy from the FMC.

Example:
For the FTD that uses a data interface for manager access:

> configure policy rollback

The last deployment to this FTD was on June 1, 2020 and its status was Successful.
Do you want to continue [Y/N]?

Y

Rolling back complete configuration on the FTD. This will take time.
.....................
Policy rollback was successful on the FTD.
Configuration has been reverted back to transaction id: 
Following is the rollback summary:
...................
....................
>

Step 2

Check that the management connection was reestablished.

In FMC, check the management connection status on the Devices > Device Management > Device > Management > FMC Access - Configuration Details > Connection Status page.

At the FTD CLI, enter the sftunnel-status-brief command to view the management connection status.

If it takes more than 10 minutes to reestablish the connection, you should troubleshoot the connection. See Troubleshoot Management Connectivity on a Data Interface.

Troubleshoot Management Connectivity on a Data Interface

When you use a data interface for manager access instead of using the dedicated Management interface, you must be careful about changing the interface and network settings for the FTD in the FMC so you do not disrupt the connection. If you change the management interface type after you add the FTD to the FMC (from data to Management, or from Management to data), if the interfaces and network settings are not configured correctly, you can lose management connectivity.

This topic helps you troubleshoot the loss of management connectivity.

View management connection status

In the FMC, check the management connection status on the Devices > Device Management > Device > Management > FMC Access - Configuration Details > Connection Status page.

At the FTD CLI, enter the sftunnel-status-brief command to view the management connection status. You can also use sftunnel-status to view more complete information.

See the following sample output for a connection that is down; there is no peer channel "connected to" information, nor heartbeat information shown: 


> sftunnel-status-brief
PEER:10.10.17.202
Registration: Completed.
Connection to peer '10.10.17.202' Attempted at Mon Jun 15 09:21:57 2020 UTC
Last disconnect time : Mon Jun 15 09:19:09 2020 UTC
Last disconnect reason : Both control and event channel connections with peer went down

See the following sample output for a connection that is up, with peer channel and heartbeat information shown: 


> sftunnel-status-brief
PEER:10.10.17.202
Peer channel Channel-A is valid type (CONTROL), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Peer channel Channel-B is valid type (EVENT), using 'eth0', connected to '10.10.17.202' via '10.10.17.222'
Registration: Completed.
IPv4 Connection to peer '10.10.17.202' Start Time: Wed Jun 10 14:27:12 2020 UTC
Heartbeat Send Time: Mon Jun 15 09:02:08 2020 UTC
Heartbeat Received Time: Mon Jun 15 09:02:16 2020 UTC
View the FTD network information

At the FTD CLI, view the Management and manager access data interface network settings:

show network 


> show network
===============[ System Information ]===============
Hostname                  : FTD-4
Domains                   : cisco.com
DNS Servers               : 72.163.47.11
DNS from router           : enabled
Management port           : 8305
IPv4 Default route
  Gateway                 : data-interfaces

==================[ management0 ]===================
Admin State               : enabled
Admin Speed               : 1gbps
Operation Speed           : 1gbps
Link                      : up
Channels                  : Management & Events
Mode                      : Non-Autonegotiation
MDI/MDIX                  : Auto/MDIX
MTU                       : 1500
MAC Address               : 68:87:C6:A6:54:80
----------------------[ IPv4 ]----------------------
Configuration             : Manual
Address                   : 10.89.5.4
Netmask                   : 255.255.255.192
Gateway                   : 169.254.1.1
----------------------[ IPv6 ]----------------------
Configuration             : Disabled

===============[ Proxy Information ]================
State                     : Disabled
Authentication            : Disabled

======[ System Information - Data Interfaces ]======
DNS Servers               : 72.163.47.11
Interfaces                : Ethernet1/1

==================[ Ethernet1/1 ]===================
State                     : Enabled
Link                      : Up
Name                      : outside
MTU                       : 1500
MAC Address               : 68:87:C6:A6:54:A4
----------------------[ IPv4 ]----------------------
Configuration             : Manual
Address                   : 10.89.5.6
Netmask                   : 255.255.255.192
Gateway                   : 10.89.5.1
----------------------[ IPv6 ]----------------------
Configuration             : Disabled
Check that the FTD registered with the FMC

At the FTD CLI, check that the FMC registration was completed. Note that this command will not show the current status of the management connection.

show managers 


> show managers
Type                      : Manager
Host                      : 10.83.57.41
Registration              : Completed
Ping the FMC

At the FTD CLI, use the following command to ping the FMC from the data interfaces:

ping fmc_ip

At the FTD CLI, use the following command to ping the FMC from the Management interface, which should route over the backplane to the data interfaces:

ping system fmc_ip

Capture packets on the FTD internal interface

At the FTD CLI, capture packets on the internal backplane interface (nlp_int_tap) to see if management packets are being sent:

capture name interface nlp_int_tap trace detail match ip any any

show capturename trace detail

Check the internal interface status, statistics, and packet count

At the FTD CLI, see information about the internal backplane interface, nlp_int_tap:

show interface detail 


> show interface detail
[...]
Interface Internal-Data0/1 "nlp_int_tap", is up, line protocol is up
  Hardware is en_vtun rev00, BW Unknown Speed-Capability, DLY 1000 usec
	(Full-duplex), (1000 Mbps)
	Input flow control is unsupported, output flow control is unsupported
	MAC address 0000.0100.0001, MTU 1500
	IP address 169.254.1.1, subnet mask 255.255.255.248
	37 packets input, 2822 bytes, 0 no buffer
	Received 0 broadcasts, 0 runts, 0 giants
	0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
	0 pause input, 0 resume input
	0 L2 decode drops
	5 packets output, 370 bytes, 0 underruns
	0 pause output, 0 resume output
	0 output errors, 0 collisions, 0 interface resets
	0 late collisions, 0 deferred
	0 input reset drops, 0 output reset drops
	input queue (blocks free curr/low): hardware (0/0)
	output queue (blocks free curr/low): hardware (0/0)
  Traffic Statistics for "nlp_int_tap":
	37 packets input, 2304 bytes
	5 packets output, 300 bytes
	37 packets dropped
      1 minute input rate 0 pkts/sec,  0 bytes/sec
      1 minute output rate 0 pkts/sec,  0 bytes/sec
      1 minute drop rate, 0 pkts/sec
      5 minute input rate 0 pkts/sec,  0 bytes/sec
      5 minute output rate 0 pkts/sec,  0 bytes/sec
      5 minute drop rate, 0 pkts/sec
  Control Point Interface States:
	Interface number is 14
	Interface config status is active
	Interface state is active
Check routing and NAT

At the FTD CLI, check that the default route (S*) was added and that internal NAT rules exist for the Management interface (nlp_int_tap).

show route 


> show route

Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, V - VPN
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, + - replicated route
       SI - Static InterVRF
Gateway of last resort is 10.89.5.1 to network 0.0.0.0

S*       0.0.0.0 0.0.0.0 [1/0] via 10.89.5.1, outside
C        10.89.5.0 255.255.255.192 is directly connected, outside
L        10.89.5.29 255.255.255.255 is directly connected, outside

>

show nat 


> show nat

Auto NAT Policies (Section 2)
1 (nlp_int_tap) to (outside) source static nlp_server_0_sftunnel_intf3 interface  service tcp 8305 8305
    translate_hits = 0, untranslate_hits = 6
2 (nlp_int_tap) to (outside) source static nlp_server_0_ssh_intf3 interface  service tcp ssh ssh
    translate_hits = 0, untranslate_hits = 73
3 (nlp_int_tap) to (outside) source static nlp_server_0_sftunnel_ipv6_intf3 interface ipv6  service tcp 8305 8305
    translate_hits = 0, untranslate_hits = 0
4 (nlp_int_tap) to (outside) source dynamic nlp_client_0_intf3 interface
    translate_hits = 174, untranslate_hits = 0
5 (nlp_int_tap) to (outside) source dynamic nlp_client_0_ipv6_intf3 interface ipv6
    translate_hits = 0, untranslate_hits = 0
>
Check other settings

See the following commands to check that all other settings are present. You can also see many of these commands on the FMC's Devices > Device Management > Device > Management > FMC Access - Configuration Details > CLI Output page.

show running-config sftunnel 


> show running-config sftunnel
sftunnel interface outside
sftunnel port 8305

show running-config ip-client 


> show running-config ip-client
ip-client outside

show conn address fmc_ip 


> show conn address 10.89.5.35
5 in use, 16 most used
Inspect Snort:
        preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect

TCP nlp_int_tap  10.89.5.29(169.254.1.2):51231 outside  10.89.5.35:8305, idle 0:00:04, bytes 86684, flags UxIO
TCP nlp_int_tap  10.89.5.29(169.254.1.2):8305 outside  10.89.5.35:52019, idle 0:00:02, bytes 1630834, flags UIO
>
Check for a successful DDNS update

At the FTD CLI, check for a successful DDNS update:

debug ddns 


> debug ddns
DDNS update request = /v3/update?hostname=domain.example.org&myip=209.165.200.225
Successfully updated the DDNS sever with current IP addresses
DDNS: Another update completed, outstanding = 0
DDNS: IDB SB total = 0

If the update failed, use the debug http and debug ssl commands. For certificate validation failures, check that the root certificates are installed on the device:

show crypto ca certificates trustpoint_name

To check the DDNS operation:

show ddns update interface fmc_access_ifc_name 


> show ddns update interface outside

Dynamic DNS Update on outside:
    Update Method Name Update Destination
    RBD_DDNS not available

Last Update attempted on 04:11:58.083 UTC Thu Jun 11 2020
Status : Success
FQDN : domain.example.org
IP addresses : 209.165.200.225
Check FMC log files

See https://cisco.com/go/fmc-reg-error.

View Inventory Details

The Inventory Details section of the Device page shows chassis details such as the CPU and memory.

Figure 26. Inventory Details
Inventory Details

To update information, click Refresh (refresh icon).

Edit Applied Policies

The Applied Policies section of the Device page displays the following policies applied to your firewall:

Figure 27. Applied Policies
Applied Policies

For policies with links, you can click the link to view the policy.

For the Access Control Policy, view the Access Policy Information for Troubleshooting dialog box by clicking the Exclamation (exclamation icon) icon. This dialog box shows how access rules are expanded into access control entries (ACEs).

Figure 28. Access Policy Information for Troubleshooting
Access Policy Information for Troubleshooting

You can assign policies to an individual device from the Device Management page.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device where you want to assign policies, click Edit (edit icon).

Step 3

Click Device.

Step 4

In the Applied Policies section, click Edit (edit icon).

Figure 29. Policy Assignments
Policy Assignments

Step 5

For each policy type, choose a policy from the drop-down menu. Only existing policies are listed.

Step 6

Click Save.

What to do next

Edit Advanced Settings

The Advanced Settings section of the Device page displays a table of advanced configuration settings, as described below. You can edit any of these settings.

Table 6. Advanced Section Table Fields

Field

Description

Application Bypass

The state of Automatic Application Bypass on the device.

Bypass Threshold

The Automatic Application Bypass threshold, in milliseconds.

Object Group Search

The state of object group search on the device. While operating, the FTD device expands access control rules into multiple access control list entries based on the contents of any network or interface objects used in the access rule. You can reduce the memory required to search access control rules by enabling object group search. With object group search enabled, the system does not expand network or interface objects, but instead searches access rules for matches based on those group definitions. Object group search does not impact how your access rules are defined or how they appear in Firepower Management Center. It impacts only how the device interprets and processes them while matching connections to access control rules.

Interface Object Optimization

The state of interface object optimization on the device. During deployment, interface groups and security zones used in the access control and prefilter policies generate separate rules for each source/destination interface pair. If you enable interface object optimization, the system will instead deploy a single rule per access control/prefilter rule, which can simplify the device configuration and improve deployment performance. If you select this option, also select the Object Group Search option to reduce memory usage on the device.

The following topics explain how to edit the advanced device settings.


Note

For information about the Transfer Packets setting, see Edit General Settings.

Configure Automatic Application Bypass

Automatic Application Bypass (AAB) allows packets to bypass detection if Snort is down or, for a Classic device, if a packet takes too long to process. AAB causes Snort to restart within ten minutes of the failure, and generates troubleshooting data that can be analyzed to investigate the cause of the Snort failure.


Caution

AAB activation partially restarts the Snort process, which temporarily interrupts the inspection of a few packets. Whether traffic drops during this interruption or passes without further inspection depends on how the target device handles traffic. See Snort Restart Traffic Behavior for more information.

See the following behavior:

FTD Behavior: If Snort is down, then AAB is triggered after the specified timer duration. If Snort is up, then AAB is never triggered, even if packet processing exceeds the configured timer.

Classic Device Behavior: AAB limits the time allowed to process packets through an interface. You balance packet processing delays with your network’s tolerance for packet latency.

The feature functions with any deployment; however, it is most valuable in inline deployments.

Typically, you use Rule Latency Thresholding in the intrusion policy to fast-path packets after the latency threshold value is exceeded. Rule Latency Thresholding does not shut down the engine or generate troubleshooting data.

If detection is bypassed, the device generates a health monitoring alert.

By default the AAB is disabled; to enable AAB follow the steps described.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the device where you want to edit advanced device settings, click Edit (edit icon).

Step 3

Click Device, then click Edit (edit icon) in the Advanced Settings section.

Step 4

Check Automatic Application Bypass.

Step 5

Enter a Bypass Threshold from 250 ms to 60,000 ms. The default setting is 3000 milliseconds (ms).

Step 6

Click Save.

What to do next

Configure Object Group Search

While operating, the FTD device expands access control rules into multiple access control list entries based on the contents of any network or interface objects used in the access rule. You can reduce the memory required to search access control rules by enabling object group search. With object group search enabled, the system does not expand network or interface objects, but instead searches access rules for matches based on those group definitions. Object group search does not impact how your access rules are defined or how they appear in FMC. It impacts only how the device interprets and processes them while matching connections to access control rules.

Enabling object group search reduces memory requirements for access control policies that include network or interface objects. However, it is important to note that object group search might also decrease rule lookup performance and thus increase CPU utilization. You should balance the CPU impact against the reduced memory requirements for your specific access control policy. In most cases, enabling object group search provides a net operational improvement.

Object group search is disabled by default. You can enable it on one device at a time; you cannot enable it globally. We recommend that you enable it on any device to which you deploy access rules that use network or interface objects.


Note

If you enable object group search and then configure and operate the device for a while, be aware that subsequently disabling the feature might lead to undesirable results. When you disable object group search, your existing access control rules will be expanded in the device’s running configuration. If the expansion requires more memory than is available on the device, your device can be left in an inconsistent state and you might see a performance impact. If your device is operating normally, you should not disable object group search once you have enabled it.

Before you begin

  • Model Support—FTD

  • We recommend that you also enable transactional commit on each device. From the device CLI, enter the asp rule-engine transactional-commit access-group command.

  • Changing this setting can be disruptive to system operation while the device recompiles the ACLs. We recommend that you change this setting during a maintenance window.

  • You can use FlexConfig to configure the object-group-search threshold command to enable a threshold to help prevent performance degradation. When operating with a threshold, for each connection, both the source and destination IP addresses are matched against network objects. If the number of objects matched by the source address times the number matched by the destination address exceeds 10,000, the connection is dropped. Configure your rules to prevent an excessive number of matches.

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the FTD device where you want to configure the rule, click the Edit (edit icon).

Step 3

Click the Device tab, then click the Edit (edit icon) in the Advanced Settings section.

Step 4

Check Object Group Search.

Step 5

To have object group search work on interface objects in addition to network objects, check Interface Object Optimization.

If you do not select Interface Object Optimization, the system deploys separate rules for each source/interface pair, rather that use the security zones and interface groups used in the rules. This means the interface groups are not available for object group search processing.

Step 6

Click Save.

Configure Interface Object Optimization

During deployment, interface groups and security zones used in the access control and prefilter policies generate separate rules for each source/destination interface pair. If you enable interface object optimization, the system will instead deploy a single rule per access control/prefilter rule, which can simplify the device configuration and improve deployment performance. If you select this option, also select the Object Group Search option to reduce memory usage on the device.

Interface object optimization is disabled by default. You can enable it on one device at a time; you cannot enable it globally.


Note

If you disable interface object optimization, your existing access control rules will be deployed without using interface objects, which might make deployment take longer. In addition, if object group search is enabled, its benefits will not apply to interface objects, and you might see expansion in the access control rules in the device’s running configuration. If the expansion requires more memory than is available on the device, your device can be left in an inconsistent state and you might see a performance impact.

Before you begin

Model Support—FTD

Procedure

Step 1

Choose Devices > Device Management.

Step 2

Next to the FTD device where you want to configure the rule, click the Edit (edit icon).

Step 3

Click the Device tab, then click Edit (edit icon) in the Advanced Settings section.

Step 4

Check Interface Object Optimization.

Step 5

Click Save.

Change the Management Settings for the Device

You might need to change the manager, change the manager IP address, or perform other management tasks.

Edit the FMC IP Address or Hostname on the Device

If you change the FMC IP address or hostname, you should also change the value at the device CLI so the configurations match. Although in most cases, the management connection will be reestablished without changing the FMC IP address or hostname on the device, in at least one case, you must perform this task for the connection to be reestablished: when you added the device to the FMC and you specified the NAT ID only. Even in other cases, we recommend keeping the FMC IP address or hostname up to date for extra network resiliency.

Procedure

Step 1

At the FMC CLI, view the unique UUID for the FMC so you can specify it in the FTD command. For information about the FMC CLI, see Firepower Management Center Command Line Reference in the Firepower Management Center Administration Guide.

show version

The FMC UUID definitively identifies the FMC; for example, in the case of FMC high availability, you need to specify the active FMC on the FTD.

Example:


> show version 
-------------------[ firepower ]--------------------
Model                     : Cisco Firepower Management Center for VMWare (66) Version 6.7.0 (Build 1222)
UUID                      : f7ffad78-bf16-11ec-a737-baa2f76ef602
Rules update version      : 2020-05-26-001-vrt
VDB version               : 334
----------------------------------------------------

Step 2

At the FTD CLI, edit the FMC IP address or hostname.

configure manager edit identifier {ip_address | hostname}

If the FMC was originally identified by DONTRESOLVE and a NAT ID, you can change the value to a hostname or IP address using this command. You cannot change an IP address or hostname to DONTRESOLVE .

The management connection will go down, and then reestablish. You can monitor the state of the connection using the sftunnel-status command.

Example:


> configure manager edit f7ffad78-bf16-11ec-a737-baa2f76ef602 10.10.5.1

Identify a New FMC

This procedure shows how to identify a new FMC for the managed device. You should perform these steps even if the new FMC uses the old FMC's IP address.

Procedure

Step 1

On the old FMC, if present, delete the managed device. See Delete (Unregister) a Device from the FMC.

You cannot change the FMC IP address if you have an active connection with the FMC.

Step 2

Connect to the device CLI, for example using SSH.

Step 3

Configure the new FMC.

configure manager add {hostname | IPv4_address | IPv6_address | DONTRESOLVE } regkey [nat_id]

  • {hostname | IPv4_address | IPv6_address}—Sets the FMC hostname, IPv4 address, or IPv6 address.

  • DONTRESOLVE —If the FMC is not directly addressable, use DONTRESOLVE instead of a hostname or IP address. If you use DONTRESOLVE , then a nat_id is required. When you add this device to the FMC, make sure that you specify both the device IP address and the nat_id ; one side of the connection needs to specify an IP address, and both sides need to specify the same, unique NAT ID.

  • regkey —Make up a registration key to be shared between the FMC and the device during registration. You can choose any text string for this key between 1 and 37 characters; you will enter the same key on the FMC when you add the FTD.

  • nat_id —Make up an alphanumeric string from 1 to 37 characters used only during the registration process between the FMC and the device when one side does not specify an IP address. This NAT ID is a one-time password used only during registration. Make sure the NAT ID is unique, and not used by any other devices awaiting registration. Specify the same NAT ID on the FMC when you add the FTD.

Example:


> configure manager add DONTRESOLVE abc123 efg456
Manager successfully configured.
Please make note of reg_key as this will be required while adding Device in FMC.

>

Step 4

Add the device to the FMC. See Add a Device to the FMC.

Switch from the FDM to the FMC

When you switch from the FDM to the FMC, all interface configuration is retained, in addition to the Management interface and the manager access settings. Note that other configuration settings, such as the access control policy or security zones, are not retained.

After you switch to the FMC, you can no longer use the FDM to manage the FTD device.

Before you begin

If the firewall is configured for high availability, you must first break the high availability configuration using the FDM (if possible) or the configure high-availability disable command. Ideally, break high availability from the active unit.

Procedure

Step 1

In the FDM, unregister the device from the Cisco Smart Software Manager.

Step 2

(Might be required) Configure the Management interface.

You may need to change the Management interface configuration, even if you intend to use a data interface for manager access. You will have to reconnect to the FDM if you were using the Management interface for the FDM connection.

  • Data interface for manager access—The Management interface must have the gateway set to data interfaces. By default, the Management interface receives an IP address and gateway from DHCP. If you do not receive a gateway from DHCP (for example, you did not connect this interface to a network), then the gateway will default to data interfaces, and you do not need to configure anything. If you did receive a gateway from DHCP, then you need to instead configure this interface with a static IP address and set the gateway to data interfaces.

  • Management interface for manager access—If you want to configure a static IP address, be sure to also set the default gateway to be a unique gateway instead of the data interfaces. If you use DHCP, then you do not need to configure anything assuming you successfully get the gateway from DHCP.

Step 3

Choose Device > System Settings > Management Center, and click Proceed to set up the FMC management.

Step 4

Configure the FMC Details.

Figure 30. FMC Details
FMC Details

  1. For Do you know the FMC hostname or IP address, click Yes if you can reach the FMC using an IP address or hostname, or No if the FMC is behind NAT or does not have a public IP address or hostname.

    At least one of the devices, either the FMC or the FTD device, must have a reachable IP address to establish the two-way, TLS-1.3-encrypted communication channel between the two devices.

  2. If you chose Yes, then enter the FMC Hostname/IP Address.

  3. Specify the FMC Registration Key.

    This key is a one-time registration key of your choice that you will also specify on the FMC when you register the FTD device. The registration key must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID can be used for multiple devices registering to the FMC.

  4. Specify a NAT ID.

    This ID is a unique, one-time string of your choice that you will also specify on the FMC. This field is required if you only specify the IP address on one of the devices; but we recommend that you specify the NAT ID even if you know the IP addresses of both devices. The NAT ID must not exceed 37 characters. Valid characters include alphanumerical characters (A–Z, a–z, 0–9) and the hyphen (-). This ID cannot be used for any other devices registering to the FMC. The NAT ID is used in combination with the IP address to verify that the connection is coming from the correct device; only after authentication of the IP address/NAT ID will the registration key be checked.

Step 5

Configure the Connectivity Configuration.

  1. Specify the FTD Hostname.

    If you use a data interface for the FMC Access Interface access, then this FQDN will be used for this interface.

  2. Specify the DNS Server Group.

    Choose an existing group, or create a new one. The default DNS group is called CiscoUmbrellaDNSServerGroup, which includes the OpenDNS servers.

    If you intend to choose a data interface for the FMC Access Interface, then this setting sets the data interface DNS server. The Management DNS server that you set with the setup wizard is used for management traffic. The data DNS server is used for DDNS (if configured) or for security policies applied to this interface. You are likely to choose the same DNS server group that you used for Management, because both management and data traffic reach the DNS server through the outside interface.

    On the FMC, the data interface DNS servers are configured in the Platform Settings policy that you assign to this FTD device. When you add the FTD device to the FMC, the local setting is maintained, and the DNS servers are not added to a Platform Settings policy. However, if you later assign a Platform Settings policy to the FTD device that includes a DNS configuration, then that configuration will overwrite the local setting. We suggest that you actively configure the DNS Platform Settings to match this setting to bring the FMC and the FTD device into sync.

    Also, local DNS servers are only retained by the FMC if the DNS servers were discovered at initial registration.

    If you intend to choose the Management interface for the FMC Access Interface, then this setting configures the Management DNS server.

  3. For the FMC Access Interface, choose any configured interface.

    You can change the manager interface after you register the FTD device to the FMC, to either the Management interface or another data interface.

Step 6

(Optional) If you chose a data interface, and it was not the outside interface, then add a default route.

You will see a message telling you to check that you have a default route through the interface. If you chose outside, you already configured this route as part of the setup wizard. If you chose a different interface, then you need to manually configure a default route before you connect to the FMC.

If you chose the Management interface, then you need to configure the gateway to be a unique gateway before you can proceed on this screen.

Step 7

(Optional) If you chose a data interface, click Add a Dynamic DNS (DDNS) method.

DDNS ensures the FMC can reach the FTD device at its Fully-Qualified Domain Name (FQDN) if the IP address changes. See Device > System Settings > DDNS Service to configure DDNS.

If you configure DDNS before you add the FTD device to the FMC, the FTD device automatically adds certificates for all of the major CAs from the Cisco Trusted Root CA bundle so that the FTD device can validate the DDNS server certificate for the HTTPS connection. FTD supports any DDNS server that uses the DynDNS Remote API specification (https://help.dyn.com/remote-access-api/).

DDNS is not supported when using the Management interface for manager access.

Step 8

Click Connect. The FMC Registration Status dialog box shows the current status of the switch to the FMC. After the Saving FMC Registration Settings step, go to the FMC, and add the firewall.

Figure 31. FMC Registration Status
FMC Registration Status

If you want to cancel the switch to the FMC, click Cancel Registration. Otherwise, do not close the FDM browser window until after the Saving FMC Registration Settings step. If you do, the process will be paused, and will only resume when you reconnect to the FDM.

If you remain connected to the FDM after the Saving FMC Registration Settings step, you will eventually see the Successful Connection with FMC dialog box, after which you will be disconnected from the FDM.

Figure 32. Successful Connection with FMC
Successful Connection with FMC

Switch from FMC to FDM

You can configure the FTD device currently being managed by the FMC to use the FDM instead.

You can switch from the FMC to the FDM without reinstalling the software. Before switching from the FMC to the FDM, verify that the FDM meets all of your configuration requirements. If you want to switch from the FDM to the FMC, see Switch from the FDM to the FMC.


Caution

Switching to the FDM erases the device configuration and returns the system to the default configuration. However, the Management IP address and hostname are preserved.

Procedure

Step 1

In the FMC, delete the firewall from the Devices > Device Management page.

Step 2

Connect to the FTD CLI using SSH or the console port. For SSH, open a connection to the management IP address, and log into the FTD CLI with the admin username (or any other user with admin privileges).

The console port defaults to the FXOS CLI. Connect to the FTD CLI using the connect ftd command. The SSH session connects directly to the FTD CLI.

If you cannot connect to the management IP address, do one of the following:

  • Ensure that the Management physical port is wired to a functioning network.

  • Ensure that the management IP address and gateway are configured for the management network. Use the configure network ipv4/ipv6 manual command.

Step 3

Verify you are currently in remote management mode.

show managers

Example:


> show managers
Type                      : Manager
Host                      : 10.89.5.35
Registration              : Completed

Step 4

Delete the remote manager and go into no manager mode.

configure manager delete

You cannot go directly from remote management to local management.

Example:


> configure manager delete 
Deleting task list
Manager successfully deleted.

> 
> show managers 
No managers configured.

Step 5

Configure the local manager.

configure manager local

You can now use a web browser to open the local manager at https://management-IP-address .

Example:


> configure manager local 
Deleting task list

> show managers 
Managed locally.

Hot Swap an SSD on the Secure Firewall 3100

If you have two SSDs, they form a RAID when you boot up. You can perform the following tasks at the FTD CLI while the firewall is powered up:

  • Hot swap one of the SSDs—If an SSD is faulty, you can replace it. Note that if you only have one SSD, you cannot remove it while the firewall is powered on.

  • Remove one of the SSDs—If you have two SSDs, you can remove one.

  • Add a second SSD—If you have one SSD, you can add a second SSD and form a RAID.


Caution

Do not remove an SSD without first removing it from the RAID using this procedure. You can cause data loss.

Procedure

Step 1

Remove one of the SSDs.

  1. Remove the SSD from the RAID.

    configure raid remove-secure local-disk {1 | 2}

    The remove-secure keyword removes the SSD from the RAID, disables the self-encrypting disk feature, and performs a secure erase of the SSD. If you only want to remove the SSD from the RAID and want to keep the data intact, you can use the remove keyword.

    Example:

    
> configure raid remove-secure local-disk 2

  2. Monitor the RAID status until the SSD no longer shows in the inventory.

    show raid

    After the SSD is removed from the RAID, the Operability and Drive State will show as degraded. The second drive will no longer be listed as a member disk.

    Example:

    
> show raid
Virtual Drive
ID:                         1
Size (MB):                  858306
Operability:                operable
Presence:                   equipped
Lifecycle:                  available
Drive State:                optimal
Type:                       raid
Level:                      raid1
Max Disks:                  2
Meta Version:               1.0
Array State:                active
Sync Action:                idle
Sync Completed:             unknown
Degraded:                   0
Sync Speed:                 none

RAID member Disk:
Device Name:                nvme0n1
Disk State:                 in-sync
Disk Slot:                  1
Read Errors:                0
Recovery Start:             none
Bad Blocks:
Unacknowledged Bad Blocks:   

Device Name:                nvme1n1
Disk State:                 in-sync
Disk Slot:                  2
Read Errors:                0
Recovery Start:             none
Bad Blocks:
Unacknowledged Bad Blocks:   

> show raid
Virtual Drive
ID:                         1
Size (MB):                  858306
Operability:                degraded
Presence:                   equipped
Lifecycle:                  available
Drive State:                degraded
Type:                       raid
Level:                      raid1
Max Disks:                  2
Meta Version:               1.0
Array State:                active
Sync Action:                idle
Sync Completed:             unknown
Degraded:                   1
Sync Speed:                 none

RAID member Disk:
Device Name:                nvme0n1
Disk State:                 in-sync
Disk Slot:                  1
Read Errors:                0
Recovery Start:             none
Bad Blocks:
Unacknowledged Bad Blocks:

  3. Physically remove the SSD from the chassis.

Step 2

Add an SSD.

  1. Physically add the SSD to the empty slot.

  2. Add the SSD to the RAID.

    configure raid add local-disk {1 | 2}

    It can take several hours to complete syncing the new SSD to the RAID, during which the firewall is completely operational. You can even reboot, and the sync will continue after it powers up. Use the show raid command to show the status.

    If you install an SSD that was previously used on another system, and is still locked, enter the following command:

    configure raid add local-disk {1 | 2} psid

    The psid is printed on the label attached to the back of the SSD. Alternatively, you can reboot the system, and the SSD will be reformatted and added to the RAID.

History for Device Management Basics

Feature

Minimum FMC

Minimum FTD

Details

RAID support for SSDs on the Secure Firewall 3100.

7.1.0

7.1.0

The SSDs are self-encrypting drives (SEDs), and if you have 2 SSDs, they form a software RAID.

New/modified commands: configure raid, show raid, show ssd

Support for TLS 1.3 for the management connection.

7.1.0

7.1.0

The FMC-device management connection now uses TLS 1.3. Previously, TLS 1.2 was supported.

Import and export device configurations.

7.1.0

7.1.0

You can export the device-specific configuration, and you can then import the saved configuration for the same device in the following use cases:

  • Moving the device to a different FMC.

  • Restore an old configuration.

  • Reregistering a device.

New/modified screens: Devices > Device Management > Device > General

Use FDM to configure FTD for management by the FMC.

7.1.0

7.1.0

When you perform initial setup using FDM, all interface configuration completed in FDM is retained when you switch to FMC for management, in addition to the Management and manager access settings. Note that other default configuration settings, such as the access control policy or security zones, are not retained. When you use the FMC CLI, only the Management and manager access settings are retained (for example, the default inside interface configuration is not retained).

After you switch to FMC, you can no longer use FDM to manage FTD.

New/modified FDM screens: System Settings > Management Center

Filter devices by upgrade status.

6.7.0

6.7.0

The Device Management page now provides upgrade information about your managed devices, including whether a device is upgrading (and what its upgrade path is), and whether its last upgrade succeeded or failed.

New/modified screens: Devices > Device Management

Update the FMC IP address on FTD.

6.7.0

6.7.0

If you change the FMC IP address, you can now use the FTD CLI to update the device.

New/modified commands: configure manager edit

One-click access to the Firepower Chassis Manager.

6.4.0

6.4.0

For Firepower 4100/9300 series devices, the Device Management page provides a link to the Firepower Chassis Manager web interface.

New/modified screens: Devices > Device Management

Filter devices by health and deployment status; view version information.

6.2.3

6.2.3

The Device Management page now provides version information for managed devices, as well as the ability to filter devices by health and deployment status.

New/modified screens: Devices > Device Management