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

Fernando Gont <fgont@si6networks.com> Tue, 05 November 2013 00:01 UTC

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Date: Mon, 04 Nov 2013 16:00:53 -0800
From: Fernando Gont <fgont@si6networks.com>
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To: Mikael Abrahamsson <swmike@swm.pp.se>, 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 11/04/2013 03:32 PM, Mikael Abrahamsson wrote:
>>
>> 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

Isn't there a v6ops I-D with similar wording?


> implies intent, right? 

mm... as far as discussion on a number of forums went, apparently
there's intent to do so.


> Most of the "filtering" I would say is due to
> default device behavior, where no intent exists on the operator.

Data? References?


> So I'd
> rather see this changes to "IPv6 fragment header packets are having a
> severely degraded network experience" or something like that.

Well, the preso is out there, already. :-(



> 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.

Yep. This is in my TODO list. Hopefully we will cooperate with Tim
(Chown) et al to take these measurements further.

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492