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Re: IPv6 traffic stats

Pekka Savola <pekkas@netcore.fi> Wed, 12 November 2008 05:54 UTC

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Date: Wed, 12 Nov 2008 07:54:33 +0200
From: Pekka Savola <pekkas@netcore.fi>
To: Harald Alvestrand <harald@alvestrand.no>
Subject: Re: IPv6 traffic stats
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References: <08111108201165.2a71d.487911088@oregon.uoregon.edu> <20081111185711.GG1588@nsn.com> <4919ED2F.2020101@alvestrand.no> <f1110c510811111249ud4ee387m2169fb84378ec3f4@mail.gmail.com> <4919FA68.4030803@alvestrand.no>
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On Tue, 11 Nov 2008, Harald Alvestrand wrote:
> The correct number from the presentation is 0.238% - only Russia, Ukraine and 
> France have more than 0.5% IPv6.
>
> Presentation available from 
> http://rosie.ripe.net/presentations-detail/Thursday/Plenary%2014:00/index.html.

Depends on what you're looking for, but if you are interested in the 
amount of users that have any kind of IPv6 connectivity, this 
undercounts severely because address selection rules on recent OSs 
typically select IPv4 if their connectivity is 6to4 or Teredo.

Mikael Abrahamsson made a test on a p2p-related web-site, and the 
result was that 6% of users had IPv6 connectivity:

http://www.ops.ietf.org/lists/v6ops/v6ops.2008/msg01582.html

As shown in later messages, the figure is actually even higher. Teredo 
users running Windows Vista are not included in that 6% because Vista 
doesn't do do AAAA lookups at all if all you have is Teredo 
connectivity.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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