Re: [80attendees] ietf-nat64 network

Simon Perreault <simon.perreault@viagenie.ca> Mon, 28 March 2011 09:31 UTC

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Date: Mon, 28 Mar 2011 11:32:48 +0200
From: Simon Perreault <simon.perreault@viagenie.ca>
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To: Michael Richardson <mcr@sandelman.ca>
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Cc: 80attendees@ietf.org
Subject: Re: [80attendees] ietf-nat64 network
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Michael Richardson wrote, on 03/28/2011 11:01 AM:
> My resolv.conf, on debian got populated with:
> 
> marajade-[/corp/projects/moose/redmine] mcr 10081 %cat /etc/resolv.conf
> # Generated by NetworkManager
> nameserver fec0:0:0:ffff::1

This is an attempt at DNS server auto-discovery by your OS. See
draft-ietf-ipngwg-dns-discovery for details. That draft is expired, and is not
widely supported in the wild.

We advertise the DNS server address by stateless DHCPv6 and RDNSS in RAs.

> This did not seem to work, so I changed it to include above.
> 
> marajade-[/corp/projects/moose/redmine] mcr 10084 %host www.credil.org
> www.credil.org has address 173.236.130.84
> www.credil.org has IPv6 address 64:ff9b::adec:8254
> 
> It surprised me to see 64: here... is this a made up address, or is
> there a draft telling DNS64 to use this?

It's the NAT64 well-known prefix. It is defined in RFC 6052 section 2.1.

Thanks for trying it out!

Simon
-- 
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