Fred, >> I think I am in general agreement of the consequences, but it isn't >> about scope, it is about reachability. Anytime there is a a choice >> of >> addresses to use, the same issue come to play. It's hard to know >> about >> reachability with out prior knowledge or trying it out and seeing >> what >> works. This applies to ULAs and other global scope unicast >> addresses, >> IPv4 and IPv6 addresses, etc., etc. > > By this line of reasoning, scope is irrelevant. The only thing that > the Robustness Principle would guide towards is the ability to > exchange datagrams and open state with one's peer.
Yes (with the obvious exception of IPv6 link-local addresses). I think that without some sort of active confirmation, anything else we can do is a hint as to the best order of trying out a source and destination address pair. Bob -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
