OSPFv3 uses a different method to enable an interface for OSPF. Instead of using the network router configuration mode command to specify matching interface addresses, OSPFv3 is configured directly on the interface.
To enable OSPFv3 on an interface, use the ipv6 ospf process-id area area-id interface configuration mode command.
The process-id value identifies the specific routing process and must be the same as the process ID used to create the routing process in the ipv6 router ospf process-id command.
The area-id value is the area to be associated with the OSPFv3 interface. Although any value could have been configured for the area, 0 was selected, because area 0 is the backbone area to which all other areas must attach, as shown in Figure 1. This helps in the migration to multiarea OSPF, if the need arises.
In Figure 2, OSPFv3 is enabled on the R1 interfaces using the ipv6 ospf 10 area 0 command. The show ipv6 ospf interface brief command displays the active OSPFv3 interfaces.
Use the Syntax Checker in Figure 3 to enable OSPFv3 on the R2 and R3 interfaces.