IPv6 routing /48s

Niels Bakker niels=nanog at bakker.net
Tue Nov 25 19:23:26 CST 2008


* Mark_Andrews at isc.org (Mark Andrews) [Wed 26 Nov 2008, 01:55 CET]:
> In message <20081126002425.GO78345 at burnout.tpb.net>, Niels Bakker writes:
>> * alh-ietf at tndh.net (Tony Hain) [Wed 26 Nov 2008, 01:03 CET]:
>>> In any case, content providers can avoid the confusion if they simply put up
>>> a local 6to4 router alongside their 2001:: prefix, and populate DNS with
>>> both. Longest match will cause 2001:: connected systems to chose that dst,
>>> while 6to4 connected systems will chose 2002:: as the dst. There is no need
>> Huh?  Longest match done by web browsers and other applications?  Since 
>> when?
> FreeBSD 6 has is as part of the standard getaddrinfo() implementation.

I don't see that do any differentiation between 2001::/32, 2002::/16 
and 2000::/8; only between IPv6-mapped IPv4 addresses and various 
interface/link/site-local addresses.  And even that function has a big
  * XXX: we should standardize the functions and link them as standard
  * library.
warning stuck on top of it


	-- Niels.




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