Sorry, your email sounds a little confusing to me. Specifically, are you talking about a network interface on a router where the interface fails DAD during acquiring a global IPv6 address? Or are you talking about a node (potentially a host) in an IPv6 routed network where a network interface on the node failed DAD for a global IPv6 address? Also, I take it when you say "DAD failed", you mean the sending interface of the DAD has received an NA signaling a duplicate for the global address? If a duplicate for a global address is found in the network, then the network interface that send the DAD should not use the global IPv6 address to source any packets that need a global address for source. See text like the following snipped from section 5.4 of RFC 4861 [The procedure for detecting duplicate addresses uses Neighbor Solicitation and Advertisement messages as described below. If a duplicate address is discovered during the procedure, the address cannot be assigned to the interface. ] Nowhere does the text above differentiate between a link-local or a global address, so the rule applies to a global address a well. Happy New Year to everyone on this mailer. Hemant
-------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
