IPv6 OSPF on a Cisco router
The big difference between IPv4 and IPv6 OSPF configuration on a Cisco router is that the initial configuration has moved to the interface level, instead of using the "network" statements to determine which interfaces will be part of the OSPF process. To get IPv6 OSPF up-and-running, here are the 4 basic commands:
Enable ipv6 routing between non-local subnetsrouter(config)# ipv6 unicast-routing
Go into the interface config and enable the OSPF process and arearouter(config-if)# ipv6 ospf 100 area 0
Go into the ipv6 OSPF global configurationrouter(config)# ipv6 router ospf 100
Set the ipv6 OSPF router idrouter(config-rtr)# router-id X.X.X.X