> It's of course unicast (note the "to P::X"). BTW I don't understand this > part: "the L2 link-layer address of Y is available to X when X receives the > unicast NUD message." Why is this ensured? For example, X may have just > been rebooted and its neighbor cache may be empty.
That's because the address that you need is contained in the NUD packet itself. - Wes -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------