Configuring the IPv6 Unicast Address Family

By default, IS-IS configuration applies to both IPv4 and IPv6 routes. Use this command to configure IPv6 specific configuration on the device. IPv6 unicast specific address family configuration currently supports:

• Administrative distance – See Configuring Administrative Distance
• Redistribution of routes from other protocols into IS-IS – See Configuring Route Redistribution
• Route summarization– See Enabling Route Summarization

The following example shows how to enter IPv6 unicast IS-IS address family configuration mode and set the IPv6 unicast IS-IS administrative distance to 100:

System(rw)->configure
System(rw-config)->router isis
System(rw-config-isis)->address-family ipv6 unicast
System(rw-config-isis-af)->distance 100
System(rw-config-isis-af)->