Enabling IS-IS and assigning an IPv6 address to an interface

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal

2. Enter the interface ethernet command and specify an interface.
   

   device(config)# interface ethernet 1/2
   

3. Enter the ipv6 address command with the eui-64 parameter, specifying an IPv6 address, to assign the IPv6 address to the interface and configure the IPv6 address with an EUI-64 interface ID in the low-order 64 bits.
   

   device(conf-if-eth-1/2)# ipv6 address 2001:db8:12d:1300::/64 eui-64
   

4. Enter the ipv6 router isis command to enable IS-IS for the interface.
   

   device(conf-if-eth-1/2)# ipv6 router isis
   

The following example enables IS-IS routing for an interface Ethernet and assigns an IPv6 address to the interface.

device# configure terminal
device(config)# interface ethernet 1/2
device(conf-if-eth-1/2)# ipv6 address 2001:db8:12d:1300::/64 eui-64
device(conf-if-eth-1/2)# ipv6 router isis