Security Configuration Guide: Access Control Lists, Cisco IOS XE Release 3SE (Catalyst 3850 Switches)
IPv6 PACL Support
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IPv6 PACL Support

IPv6 PACL Support

Last Updated: June 7, 2012

The IPv6 PACL feature permits or denies the movement of traffic between port-based interfaces, Layer 3 subnets, wireless or wired clients, 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

To use the IPv6 port-based access control lists (PACLs), 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 Action Purpose
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 4
exit


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 7
end


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(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

Cisco IOS commands

Cisco IOS Master Command List, All Releases

IPv6 commands

Cisco IOS IPv6 Command Reference

Cisco IOS IPv6 features

Cisco IOS IPv6 Feature Mapping

IPv6 addressing and connectivity

IPv6 Configuration Guide

Standards and RFCs

Standard/RFC Title

RFCs for IPv6

IPv6 RFCs

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

Cisco IOS XE 3.2SE

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.

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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

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