Re: [Anima-signaling] SONN constrained instance

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 01 December 2016 02:33 UTC

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To: Michael Richardson <mcr+ietf@sandelman.ca>, Anima signaling DT <anima-signaling@ietf.org>
References: <d394fc61-edb7-eb3c-85fb-cd7c10fb2927@gmail.com> <2658.1480552478@obiwan.sandelman.ca>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Thu, 1 Dec 2016 15:33:45 +1300
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Subject: Re: [Anima-signaling] SONN constrained instance
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On 01/12/2016 13:34, Michael Richardson wrote:
> 
> Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
>     > 61.  Is the SONN constrained instance really needed?
> 
>     > My personal inclination is to say "yes" to #59, #61 and #62.

(BTW, I meant #60 there.)

> 
>     > We really need Michael R & Toerless to reach an agreement about #61.
> 
> I think that I said we didn't need it.

You did. But Toerless proposed it, so we need his opinion.

> That all we need is to become aware of the neighbours (which insecure DULL
> can do with M_FLOOD), and that all the security is best done by IKEv2.
> (And IKEv2, even if MacSEC is negotiated rather than IPsec)
> 
> The ACP-04 document imagines a protocol that isn't IKEv2 using some
> unspecified encapsulation over (d)TLS transporting IP packets, and negotiated
> using GRASP.  This hardly has any existing specification (one in tsvwg right
> now), and has no hardware support anywhere.  It's not our place in this WG
> to create new security protocols.

Yes, all I would expect to see negotiated over GRASP would be *which* security
mechanism to use; that's what is assumed in
https://tools.ietf.org/html/draft-carpenter-anima-ani-objectives-00#section-3.2

I have no skin in the game though; I'm quite happy with
https://tools.ietf.org/html/draft-carpenter-anima-ani-objectives-00#section-3.1

Toerless?

Rgds
   Brian