Subject: Re: DNS issues with Mozilla
To: Noah L. Meyerhans <frodo@morgul.net>
From: Andrew Basterfield <list@lostgeneration.freeserve.co.uk>
List: netbsd-users
Date: 05/09/2002 00:39:37
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On Wed, 8 May 2002 14:00:05 -0400
"Noah L. Meyerhans" <frodo@morgul.net> wrote:

> On Wed, May 08, 2002 at 03:02:54PM +0100, Andrew Basterfield wrote:
> > In my experience Mozilla doesn't timeout and fall back to IPv4. If a
> > site has an AAAA record, and Mozilla is running on a machine with an
> > IPv6 capable kernel it will assume you have an IPv6 link to the 'net. 
> 
> That used to be the case, but shouldn't be any more.  See mozilla bug
> http://bugzilla.mozilla.org/show_bug.cgi?id=86917  It should now try
> each address returned by getaddrinfo.

This is now indeed the case with Mozilla 0.99, it will fall back to IPv4
if no IPv6 link is available, even if the site has an AAAA record.

> > Try disabling IPv6 on the NetBSD machine (or better still get a free
> > IPv6 tunnel with freenet6.net, but remember the IPv6 firewall!)
> 
> In the past, not even a good 6bone connection would help you much, since
> many web sites with AAAA records do not have reliable AAAA connections.
> I had www.netbsd.org in /etc/hosts for a while, since I could never
> access it via IPv6.

This is no longer an issue as Mozilla will fall back to IPv4, as will the
base NetBSD utilities like ftp. No excuse now!

--Andrew

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