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To use OSPFv3 with VRRPv3, go to Advanced Routing > IPv6 OSPF > Interfaces > Add or Edit > enable Use Virtual Address. If the configured interface is part of the VRRP master virtual router, OSPFv3 runs on the interface. When you enable this option, OSPFv3 uses the VRRPv3 virtual link-local address for the interface as the source of its control packets. This cannot be the automatically configured link-local address - that is, you must change the link-local address for the interface to something other than the default. You must configure the same link-local address on all the routers in the VRRP group.
VRRP installs the link-local address only on the Master, so OSPFv3 runs only on that router. If a failover occurs, VRRPv3 installs the link-local address on the new Master and OSPFv3 starts running on that system. Because OSPFv3 runs on one router at a time, there is no synchronization of OSPFv3 state between the VRRP group members.
