Matt Addison <matt.addison@lists.evilgeni.us> writes:

I'll admit right now that I don't know nearly enough about the IETF process, but it looks like there have been 2 separate attempts at this: draft-lee-dnsop-resolver-wellknown-ipv6addr - ID, expired draft-ohta-preconfigured-dns - ID, expired

Until one of those is revived (or a similar draft is written), and makes it through IETF to reach RFC status, and there are assigned addresses from IANA, there are no well known addresses for anyone hardcode.

Several microsoft OSes will automatically use fec0:0:0:ffff::1, 2, and 3 if there is a nameserver there.