IPv6 Configuration Guide, Cisco IOS Release 15.2S
IPv6 Destination Guard
IPv6 Destination Guard
Last Updated: July 6, 2012
The IPv6 Destination Guard feature blocks any data traffic from an unknown source, and filters IPv6 traffic based on the destination address.
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.
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Prerequisites for IPv6 Destination Guard
Information About IPv6 Destination Guard
IPv6 Destination Guard Overview
The IPv6 Destination Guard feature blocks data traffic from an unknown source and filters IPv6 traffic based on the destination address. It populates all active destinations into the IPv6 first-hop security binding table, and blocks data traffic when the destination is not identifiied.
How to Configure the IPv6 Destination Guard
Configuring IPv6 Destination Guard
6. vlan configuration vlan-list
7. ipv6 destination-guard attach-policy [policy-name]
9. show ipv6 destination-guard policy [policy-name]
Configuration Examples for IPv6 Destination Guard
Example: Configuring an IPv6 Destination Guard Policy
The following example shows how to configure a destination guard policy:
Router> enable Router# configure terminal Router(config)# vlan configuration 300 Router(config-vlan-config)# ipv6 destination-guard attach-policy destination % Warning - 'ipv6 snooping' should be configured before destination-guard Router(config-vlan-config)# ipv6 snooping attach-policy ND Router(config)# vlan configuration 300 Router(config-vlan-config)# ipv6 destination-guard attach-policy destination Router(config-vlan-config)# Router# show ipv6 destination-guard policy destination Destination guard policy Destination: enforcement always Target: vlan 300
Standards and RFCs
Feature Information for IPv6 Destination Guard
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.
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