To implement OSPFv3 for IPv6, you must configure the following:
You enable OSPFv3 almost the same way you enable OSPFv2. The only difference is that you use the ospf3 statement in place of ospf at the [edit protocols] hierarchy level.
To place selected interfaces in an OSPFv3 area, use the interface statement at the [edit protocols ospf3 area area-number] hierarchy level.