In Docker IPv6 documentation section on NDP proxying (https://docs.docker.com/engine/userguide/networking/default_network/ipv6/#using-ndp-proxying), it suggests manually adding the neighbor proxy for each IPv6 address in the subnet, or use an external NDP proxy daemon.

It would be useful if Docker could add the neighbor proxy when it allocates an IPv6 address from the subnet, and similarly remove the neighbor proxy when the address is reclaimed.

It looks like this would need another option added to the bridge driver (and possibly others, I'm not clear on that). Something like com.docker.network.bridge.ndp_proxy=, which would result in the equivalent of ip -6 neigh add proxy dev , perhaps.

This is needed for moby/moby#10919