OSPFv3 communication between routers and next hop addresses

When using OSPFv3 with IPv6, OSPF messages are exchanged using the link-local addresses. Link-local addresses are unique per network segment only. Next hops in the routing table are also specified as next-hop addresses along with the exit interface to make them unique.

OSPF

Links:

https://datatracker.ietf.org/doc/html/rfc5340#page-7

https://forum.networklessons.com/t/how-to-configure-ipv6-ospfv3-on-cisco-ios-router/902/34?u=lagapides

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