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Re: [OPSAWG] [Gen-art] Genart early review of draft-ietf-opsawg-mud-08

"Einar Nilsen-Nygaard (einarnn)" <einarnn@cisco.com> Thu, 31 August 2017 07:15 UTC

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From: "Einar Nilsen-Nygaard (einarnn)" <einarnn@cisco.com>
To: "Dale R. Worley" <worley@ariadne.com>
CC: "gen-art@ietf.org" <gen-art@ietf.org>, "draft-ietf-opsawg-mud.all@ietf.org" <draft-ietf-opsawg-mud.all@ietf.org>, "opsawg@ietf.org" <opsawg@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>, "mranga@gmail.com" <mranga@gmail.com>, Robert Sparks <rjsparks@nostrum.com>
Subject: Re: [OPSAWG] [Gen-art] Genart early review of draft-ietf-opsawg-mud-08
Thread-Topic: [OPSAWG] [Gen-art] Genart early review of draft-ietf-opsawg-mud-08
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Date: Thu, 31 Aug 2017 07:15:46 +0000
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I think we need to bear in mind that the MUD files constitute recommendations for how a device should be treated and what policies/security should be applied to it by a network. This draft, in itself, cannot allow a manufacturer to actually proscribe anything. Today, the only way to achieve what you note below, AFAIK, is for the device to have a software update of some kind applied to it.

Also, we could also argue that a manufacturer-published MUD file actually has the potential to increase transparency as it should explicitly define the traffic flows required for "proper operations".

Cheers,

Einar

> On Aug 31, 2017, at 03:02, Dale R. Worley <worley@ariadne.com> wrote:
> 
> This draft raises some fascinating questions.  One is "How do we ensure
> that the manufacturer cannot proscribe the uses of a device that it is
> capable of and that its purchaser desires?"  Another is "How do we
> ensure that the manufacturer cannot reduce the permitted uses of the
> device after its purchase?"
> 
> Dale
> 
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> OPSAWG@ietf.org
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