Re: [v6ops] Some stats on IPv6 fragments and EH filtering on the Internet

Mikael Abrahamsson <swmike@swm.pp.se> Mon, 04 November 2013 23:32 UTC

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Date: Tue, 5 Nov 2013 00:32:00 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Fernando Gont <fernando@gont.com.ar>
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Cc: IPv6 Operations <v6ops@ietf.org>, "6man@ietf.org" <6man@ietf.org>
Subject: Re: [v6ops] Some stats on IPv6 fragments and EH filtering on the Internet
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On Mon, 4 Nov 2013, Fernando Gont wrote:

> Folks,
>
> I did a presentation on the topic at the IEPG meeting earlier this week.
> It provides some concrete data regarding IPv6 fragmentation and
> Extension Header filtering on the Internet.
>
> The slideware is available at:
> <http://www.iepg.org/2013-11-ietf88/fgont-iepg-ietf88-ipv6-frag-and-eh.pdf>
>
> Certainly there's *much* more work to be done in this area, but I
> thought that this could be good food sfor some of the discussions that
> we were having on the topic.

"Operators are known to filter IPv6 fragments". This kind of writing 
implies intent, right? Most of the "filtering" I would say is due to 
default device behavior, where no intent exists on the operator. So I'd 
rather see this changes to "IPv6 fragment header packets are having a 
severely degraded network experience" or something like that.

Otherwise, great work. I would like to see traceroute or alike done with 
these kinds of packets headers also, to see where packets are dropped.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se