Static Neighbor Entries Configuration

In some special cases, a neighbor cannot be reached using the neighbor discovery feature. In this situation, you can add a static entry to the IPv6 neighbor discovery cache, which causes a neighbor to be reachable at all times without using neighbor discovery. (A static entry in the IPv6 neighbor discovery cache functions like a static ARP entry in IPv4.)

Note: A port that has a statically assigned IPv6 entry cannot be added to a VLAN.
Note: Static neighbor configurations will be cleared on secondary ports when a LAG is formed.

Use the ipv6 neighbor command to add a static entry for a neighbor. 

device(config)# ipv6 neighbor 2001:DB8:2678:47b ethernet 1/3/1 0000.002b.8641

You configured IPv6 address 2001:DB8:2678:47b and link-layer address 0000.002b.8641 that is reachable through Ethernet interface 1/3/1. To remove a static IPv6 entry from the IPv6 neighbor discovery cache, use the no form of this command.

Parent topic: IPv6 Addressing