Contents

IPv6 PACL Support

The IPv6 PACL feature permits or denies the movement of traffic between Layer 3 subnets and VLANs, or within a VLAN.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Prerequisites for IPv6 PACL Support

In order to use the IPv6 port-based access control list (PACL) feature, you must know how to configure IPv6 access lists.

Information About IPv6 PACL Support

IPv6 Port-Based Access Control List Support

The IPv6 PACL feature provides the ability to provide access control (permit or deny) on Layer 2 switch ports for IPv6 traffic. IPv6 PACLs are similar to IPv4 PACLs, which provide access control on Layer 2 switch ports for IPv4 traffic. They are supported only in the ingress direction and in hardware.

A PACL can filter ingress traffic on Layer 2 interfaces based on Layer 3 and Layer 4 header information or non-IP Layer 2 information.

How to Configure IPv6 PACL Support

Configuring PACL Mode and Applying IPv6 PACL on an Interface

Before You Begin

Before you configure the IPv6 PACL feature, you must configure an IPv6 access list. Once you have configured the IPv6 access list, you must configure the port-based access control list (PACL) mode on the specified IPv6 Layer 2 interface.

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    ipv6 access-list access-list-name

    4.    exit

    5.    interface type number

    6.    ipv6 traffic-filter access-list-name {in | out}

    7.    end


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Device> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.
     
    Step 2 configure terminal


    Example:
    Device# configure terminal
     

    Enters global configuration mode.

     
    Step 3 ipv6 access-list access-list-name


    Example:
    Device(config)# ipv6 access-list list1
     

    Defines an IPv6 ACL and enters IPv6 access list configuration mode.

     
    Step 4exit


    Example:
    Device(config-ipv6-acl)# exit
     

    Exits IPv6 access list configuration mode and enters global configuration mode.

     
    Step 5 interface type number


    Example:
    Device(config)# interface fastethernet 0/0
     

    Specifies an interface type and number and enters interface configuration mode.

     
    Step 6 ipv6 traffic-filter access-list-name {in | out}


    Example:
    Device(config-if)# ipv6 traffic-filter list1 in
     

    Filters incoming and outgoing IPv6 traffic on an interface.

     
    Step 7end


    Example:
    Device(config-if)# end
     

    Exits interface configuration mode and enters privileged EXEC mode.

     

    Configuration Examples for IPv6 PACL Support

    Example: Configuring PACL Mode and Applying IPv6 PACL on an Interface

    Device# configure terminal
    Device(config)# ipv6 access-list list1
    Device(config-ipv6-acl)# exit
    Device(config)# interface fastethernet 0/0
    Device(config-if)# ipv6 traffic-filter list1 in

    Additional References for IPv6 PACL Support

    Related Documents

    Related Topic

    Document Title

    IPv6 addressing and connectivity

    IPv6 Configuration Guide

    Cisco IOS commands

    Cisco IOS Master Commands List, All Releases

    IPv6 commands

    Cisco IOS IPv6 Command Reference

    Cisco IOS IPv6 features

    Cisco IOS IPv6 Feature Mapping

    Standards and RFCs

    Standard/RFC

    Title

    RFCs for IPv6

    IPv6 RFCs

    MIBs

    MIB

    MIBs Link

    No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.

    To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

    http:/​/​www.cisco.com/​go/​mibs

    Technical Assistance

    Description

    Link

    The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

    http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

    Feature Information for IPv6 PACL Support

    The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

    Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

    Table 1 Feature Information for IPv6 PACL Support

    Feature Name

    Releases

    Feature Information

    IPv6 PACL Support

    The IPv6 PACL feature permits or denies the movement of traffic between port-based interface, Layer 3 subnets, wireless or wired clients, and VLANs, or within a VLAN.

    The following command was introduced or modified: ipv6 traffic-filter.

    IPv6 PACL Support

    IPv6 PACL Support

    The IPv6 PACL feature permits or denies the movement of traffic between Layer 3 subnets and VLANs, or within a VLAN.

    Finding Feature Information

    Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

    Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

    Prerequisites for IPv6 PACL Support

    In order to use the IPv6 port-based access control list (PACL) feature, you must know how to configure IPv6 access lists.

    Information About IPv6 PACL Support

    IPv6 Port-Based Access Control List Support

    The IPv6 PACL feature provides the ability to provide access control (permit or deny) on Layer 2 switch ports for IPv6 traffic. IPv6 PACLs are similar to IPv4 PACLs, which provide access control on Layer 2 switch ports for IPv4 traffic. They are supported only in the ingress direction and in hardware.

    A PACL can filter ingress traffic on Layer 2 interfaces based on Layer 3 and Layer 4 header information or non-IP Layer 2 information.

    How to Configure IPv6 PACL Support

    Configuring PACL Mode and Applying IPv6 PACL on an Interface

    Before You Begin

    Before you configure the IPv6 PACL feature, you must configure an IPv6 access list. Once you have configured the IPv6 access list, you must configure the port-based access control list (PACL) mode on the specified IPv6 Layer 2 interface.

    SUMMARY STEPS

      1.    enable

      2.    configure terminal

      3.    ipv6 access-list access-list-name

      4.    exit

      5.    interface type number

      6.    ipv6 traffic-filter access-list-name {in | out}

      7.    end


    DETAILED STEPS
       Command or ActionPurpose
      Step 1 enable


      Example:
      Device> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 configure terminal


      Example:
      Device# configure terminal
       

      Enters global configuration mode.

       
      Step 3 ipv6 access-list access-list-name


      Example:
      Device(config)# ipv6 access-list list1
       

      Defines an IPv6 ACL and enters IPv6 access list configuration mode.

       
      Step 4exit


      Example:
      Device(config-ipv6-acl)# exit
       

      Exits IPv6 access list configuration mode and enters global configuration mode.

       
      Step 5 interface type number


      Example:
      Device(config)# interface fastethernet 0/0
       

      Specifies an interface type and number and enters interface configuration mode.

       
      Step 6 ipv6 traffic-filter access-list-name {in | out}


      Example:
      Device(config-if)# ipv6 traffic-filter list1 in
       

      Filters incoming and outgoing IPv6 traffic on an interface.

       
      Step 7end


      Example:
      Device(config-if)# end
       

      Exits interface configuration mode and enters privileged EXEC mode.

       

      Configuration Examples for IPv6 PACL Support

      Example: Configuring PACL Mode and Applying IPv6 PACL on an Interface

      Device# configure terminal
      Device(config)# ipv6 access-list list1
      Device(config-ipv6-acl)# exit
      Device(config)# interface fastethernet 0/0
      Device(config-if)# ipv6 traffic-filter list1 in

      Additional References for IPv6 PACL Support

      Related Documents

      Related Topic

      Document Title

      IPv6 addressing and connectivity

      IPv6 Configuration Guide

      Cisco IOS commands

      Cisco IOS Master Commands List, All Releases

      IPv6 commands

      Cisco IOS IPv6 Command Reference

      Cisco IOS IPv6 features

      Cisco IOS IPv6 Feature Mapping

      Standards and RFCs

      Standard/RFC

      Title

      RFCs for IPv6

      IPv6 RFCs

      MIBs

      MIB

      MIBs Link

      No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.

      To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

      http:/​/​www.cisco.com/​go/​mibs

      Technical Assistance

      Description

      Link

      The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

      http:/​/​www.cisco.com/​cisco/​web/​support/​index.html

      Feature Information for IPv6 PACL Support

      The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

      Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

      Table 1 Feature Information for IPv6 PACL Support

      Feature Name

      Releases

      Feature Information

      IPv6 PACL Support

      The IPv6 PACL feature permits or denies the movement of traffic between port-based interface, Layer 3 subnets, wireless or wired clients, and VLANs, or within a VLAN.

      The following command was introduced or modified: ipv6 traffic-filter.