Pekka Savola wrote: > ... > IMHO, using link-local addresses for anything except well-specified > purposes (e.g. routing protocols, RFC2461/2, etc.) is really, really > counter-productive
in your limited world this is undoubtedly true, but there is a wider world out there. > -- as you'll have to make those apps be able to > distinguish the zone identifiers as well, and that's probably > something we > DON'T want to do. But your mileage may vary. > > So, I'll conclude by a few questions to give food for thought: > > - does this seem like a problem, that is, should getaddrinfo() + > AI_ADDRCONFIG perform AAAA DNS queries etc. if > the node only has v6 link-local/loopback addresses? It is not a problem if you follow addr selection rules and prefer matching scopes. This will cause IPv4 to be used if there is only a LL, trying to talk to a AAAA global. > > - is getaddrinfo() + link-local addresses something we should support? Absolutely in the standard. In your specific network, you can turn this off if it causes you to loose sleep at night. > > - should this be fixed by e.g.: > a) recommending that the implementations filter out > link-locals as well > when doing AI_ADDRCONFIG (a BCP/Info document) > b) specifying additional semantics for AI_ADDRCONFIG > c) specifying a new hint which would perform this > > Note: if we go select any of these (especially the latter two), it might > make sense to bring this discussion up in the relevant API forums like > POSIX as well, because the IETF API documents are just Informational RFCs. > > -- > Pekka Savola "You each name yourselves king, yet the > Netcore Oy kingdom bleeds." > Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings > > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > [EMAIL PROTECTED] > Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
