Re: [v6ops] [Int-area] [OPSEC] I-D Action: draft-gont-opsec-ipv6-eh-filtering-00.txt

Fernando Gont <fgont@si6networks.com> Fri, 18 July 2014 04:34 UTC

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Date: Thu, 17 Jul 2014 22:21:51 -0600
From: Fernando Gont <fgont@si6networks.com>
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To: Joe Touch <touch@isi.edu>, "C. M. Heard" <heard@pobox.com>
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Subject: Re: [v6ops] [Int-area] [OPSEC] I-D Action: draft-gont-opsec-ipv6-eh-filtering-00.txt
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On 07/17/2014 04:38 PM, Joe Touch wrote:
>>>
>>> They need to be characterized as what they are:
>>>
>>>      - an attempt to accommodate devices that are NOT IPv6-compliant
>>
>> I'd have a hard time coming uup with a vendor/device that can process
>> IPv6 packets with HBH header with the same performance as regular
>> packets. So.. are you suggesting that we start claiming that "we
>> currently do not know of any ipv6-compliant routers", or what? (fwiw, I
>> expect you are not)
> 
> If we are, then it's time to adjust RFC2460.

I disagree. Operational policy != protocol specification. Actually, the
IETF can do whatever it wants with the protocol specs, but not that much
with the operational stuff (other than providing *advice* -- because ops
folks can do whatever they want with their networks).


> IMO, we ought to:
> 
>     - define the features/capabilities we think are necessary
> 
>     - require that anything that doesn't support what's necessary
>     as non-compliant
> 
> Otherwise, you're just un-doing all the work that goes into the
> standards process in the first place. All because you think that
> anything you don't expect is an attack. It isn't. It just means you're
> not prepared.

We seem to be in disagreement. If anything, anything that I don't want
is not an attack, but rather an unnecessary attack surface. But again,
please read the I-D... because it really doesn't follow that reasoning.

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