Setting the Date and Time
Use the NTP page to configure the network time protocol (NTP) on the system, to set the date and time manually, or to view the current system time.
NTP settings are automatically synced between the Firepower 4100/9300 chassis and any logical devices installed on the chassis.
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If you are deploying Firepower Threat Defense on the Firepower 4100/9300 chassis, you must configure NTP on the Firepower 4100/9300 chassis so that Smart Licensing will work properly and to ensure proper timestamps on device registrations. You should use the same NTP server for both the Firepower 4100/9300 chassis and the Firepower Management Center, but note that you cannot use Firepower Management Center as the NTP server for the Firepower 4100/9300 chassis. |
If you are using NTP, you can view the overall synchronization status on the Current Time tab, or you can view the synchronization status for each configured NTP server by looking at the Server Status field in the NTP Server table on the Time Synchronization tab. If the system is unable to synchronize with a particular NTP server, you can hover over the information icon next to the Server Status for more information.
Viewing the Configured Date and Time
Procedure
Step 1 |
Choose . |
Step 2 |
Click the Current Time tab. The system shows the date, time, and time zone that are configured on the device. If you are using NTP, you can also view the overall synchronization status on the Current Time tab. You can view the synchronization status for each configured NTP server by looking at the Server Status field in the NTP Server table on the Time Synchronization tab. If the system is unable to synchronize with a particular NTP server, you can hover over the information icon next to the Server Status for more information. |
Setting the Time Zone
Procedure
Step 1 |
Choose . |
Step 2 |
Click the Current Time tab. |
Step 3 |
Choose the appropriate time zone for the Firepower chassis from the Time Zone drop-down list. |
Setting the Date and Time Using NTP
NTP is used to implement a hierarchical system of servers that provide a precisely synchronized time among network systems. This kind of accuracy is required for time-sensitive operations, such as validating CRLs, which include a precise time stamp. You can configure up to four NTP servers.
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Before you begin
If you use a hostname for the NTP server, you must configure a DNS server. See Configuring DNS Servers.
Procedure
Step 1 |
Choose .The Time Synchronization tab is selected by default. |
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Step 2 |
Under Set Time Source, click Use NTP Server. |
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Step 3 |
(Optional) Check the NTP Server Authentication: Enable check box if you need to authenticate with the NTP server. Click Yes to require an authentication key ID and value. Only SHA1 is supported for NTP server authentication. |
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Step 4 |
Click Add to identify up to 4 NTP servers by IP address or hostname. |
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Step 5 |
(Optional) Enter the NTP server's Authentication Key ID and Authentication Value. Obtain the key ID and value from the NTP server. For example, to generate the SHA1 key on NTP server Version 4.2.8p8 or later with OpenSSL installed, enter the ntp-keygen -M command, and then view the key ID and value in the ntp.keys file. The key is used to tell both the client and server which value to use when computing the message digest. |
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Step 6 |
Click Save. You can view the synchronization status of each server by looking at the Server Status field in the NTP Server table. If the system is unable to synchronize with a particular NTP server, you can hover over the information icon next to the Server Status for more information.
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Deleting an NTP Server
Procedure
Step 1 |
Choose . |
Step 2 |
Click the Time Synchronization tab. |
Step 3 |
For each NTP server that you want to remove, click the Delete icon for that server in the NTP Server table. |
Step 4 |
Click Save. |
Setting the Date and Time Manually
This section describes how to set the date and time manually on the Firepower chassis.
Procedure
Step 1 |
Choose . |
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Step 2 |
Click the Time Synchronization tab. |
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Step 3 |
Under Set Time Source, click Set Time Manually. |
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Step 4 |
Click the Date drop-down list to display a calendar and then set the date using the controls available in the calendar. |
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Step 5 |
Use the corresponding drop-down lists to specify the time as hours, minutes, and AM/PM.
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Step 6 |
Click Save. The Firepower chassis is configured with the date and time specified.
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