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Re: kern/44943: 2002::/16 (6to4) addresses are preferred over native IPv6 transport
The following reply was made to PR misc/44943; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
Subject: Re: kern/44943: 2002::/16 (6to4) addresses are preferred over native
Date: Sun, 8 May 2011 10:11:36 +0200
On Sat, May 07, 2011 at 01:50:00PM +0000, pettai%nordu.net@localhost wrote:
> NetBSD seems to pref 2002::/16 6to4 addresses (which is a tunnel
> mechanism) over native IPv6 transport if both are given for a remote
> host. This is broken behavior now days, then native IPv6 is deployed on
> a much wider scale than before. (The 6to4 2002::/16 RFC is under
> discussion to become a historic document in the IETF)
This sounds like a misunderstanding. NetBSD itself does not prefer any
address over any other. Applications typically just try all results
returned by the resolver in the (more or less) random order they arrive.
So this depends mostly on the nameserver answering your question.
You could check the "sortlist" option in /etc/resolv.conf - but I don't know
if/how that works for v6 addresses.
Besides, why do you realy care?
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