Derive the fe80::/10 link-local address a host will use from its MAC address, with the zone identifier.
Link-local addresses are formed automatically on every IPv6 interface from the fe80 prefix plus an interface identifier. Because the same address can exist on several links, a zone identifier selects the interface. The solicited-node multicast address is derived from the last 24 bits and is what neighbour discovery targets. Link-local addresses are what routing protocols such as OSPFv3 and BGP peer over, so predicting them is routine when building or troubleshooting adjacencies.
IPv6 Link-Local
The fe80::/64 prefix is combined with the modified EUI-64 interface identifier derived from the MAC address.
The fe80::/64 prefix is combined with the modified EUI-64 interface identifier derived from the MAC address. Link-local addresses are formed automatically on every IPv6 interface from the fe80 prefix plus an interface identifier. Because the same address can exist on several links, a zone identifier selects the interface. The solicited-node multicast address is derived from the last 24 bits and is what neighbour discovery targets.
Link-local addresses are what routing protocols such as OSPFv3 and BGP peer over, so predicting them is routine when building or troubleshooting adjacencies.
This calculator takes 2 inputs: MAC address, Interface / zone name. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.