Enable IPv6 Support

1. Enter Interface Configuration mode for VLAN 3.

   SEFOS# configure terminal
   SEFOS(config)# interface vlan 3
   

2. Enable IPv6 support in the interface.

   The IPv6 link-local address is automatically configured on the interface when you enable IPv6 processing in the interface. IPv6 support is disabled in an interface by default.

   SEFOS(config-if)# ipv6 enable
   SEFOS(config-if)# exit
   SEFOS(config)# exit
   

3. Review the IPv6 information of the VLAN 3 interface.

   SEFOS# show ipv6 interface vlan 3
    
   vlan3 is up, line protocol is up
       IPv6 is Enabled
       Link local address:
           fe80::214:4fff:fe6c:560f
       Global unicast address(es):
           fec0::2222:0:1/96
   ...