[122519] in North American Network Operators' Group
Re: Denic (.de) blocking 6to4 nameservers (since begin feb 2010)
daemon@ATHENA.MIT.EDU (Nathan Ward)
Tue Feb 16 01:51:16 2010
From: Nathan Ward <nanog@daork.net>
In-Reply-To: <alpine.DEB.1.10.1002160743480.4986@uplift.swm.pp.se>
Date: Tue, 16 Feb 2010 19:50:46 +1300
To: nanOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 16/02/2010, at 7:47 PM, Mikael Abrahamsson wrote:
> On Tue, 16 Feb 2010, Nathan Ward wrote:
>=20
>> XP won't ask for AAAA unless it has non-Teredo connectivity though I =
don't think.
>=20
> That doesn't compute considering all the XP machines with Teredo =
addresses that asked for my AAAA only content.
>=20
> <http://www.ops.ietf.org/lists/v6ops/v6ops.2008/msg01582.html>
>=20
> "Of the users getting v6 only gif from non-tunnel-space, 58% were from =
Proxad (free.fr I believe), and then on the list came UNINET, SUNET, =
FUNET (university networks in .no, .se and .fi) and Hurricane electric.
>=20
> 98% of Teredo users run Windows XP.
> 88% of 6to4 users run Windows Vista."
>=20
> So 98% of Teredo users getting the v6only content (using DNS) was =
using WinXP, so it does seem it does AAAA lookups.
I mean non-Teredo connectivity in addition to Teredo.
Perhaps they have Teredo and 6to4, and could not reach you via 6to4 so =
instead used Teredo, or, any number of scenarios.
--
Nathan Ward=
