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Re: 6MAN Agenda for IETF86

Mark Smith <markzzzsmith@yahoo.com.au> Tue, 05 March 2013 20:17 UTC

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References: <7EE61AD6-2E54-4F17-BBFD-30BE77F7E782@gmail.com> <1362476231.3387.278.camel@karl> <3946.1362509293@sandelman.ca>
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Date: Tue, 05 Mar 2013 12:17:41 -0800
From: Mark Smith <markzzzsmith@yahoo.com.au>
Subject: Re: 6MAN Agenda for IETF86
To: Michael Richardson <mcr+ietf@sandelman.ca>, Karl Auer <kauer@biplane.com.au>
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Hi,


----- Original Message -----
> From: Michael Richardson <mcr+ietf@sandelman.ca>
> To: Karl Auer <kauer@biplane.com.au>
> Cc: ipv6@ietf.org
> Sent: Wednesday, 6 March 2013 5:48 AM
> Subject: Re: 6MAN Agenda for IETF86
> 
> 
>>>>>>  "Karl" == Karl Auer <kauer@biplane.com.au> 
> writes:
>     Karl> On Mon, 2013-03-04 at 16:02 -0800, Bob Hinden wrote:
>     >> A Simple Secure Addressing Generation Scheme for IPv6
>     >> AutoConfiguration draft-rafiee-6man-ssas-01.txt [...]
>     >> DHCPv6/SLAAC Address Configuration Interaction Problem Statement
>     >> draft-liu-bonica-dhcpv6-slaac-problem-01.txt
>     >> 
>     >> We did not think there had been enough discussion or interest on
>     >> the w.g. list to guarantee a speaking slot.  We allocated short
>     >> slots at the end of the session if there is time before the
>     >> meeting ends.  If anyone (other than the authors) think one of
>     >> these should be given more time, please speak up.
> 
>     Karl> For what it's worth it seems to me that there is a gaping hole
>     Karl> around securing ND. IPSec is obviously ridiculous, SEND is
>     Karl> only marginally less ridiculous. Maybe SSAS is a way forward? 
> 
> SEND looked at AH and realized that it couldn't be used, so IPsec is a
> non-starter.  I'd like to know what you know about SEND that the SEND WG
> didn't...
> 

I'm curious what the specific problem with SEND is. Is it the lack of commonly available implementations, or the manual work to bootstrap it (IIRC that is required), or both? The IETF obviously can't solve the former. If it is the latter, I wonder if the "Better-Than-Nothing" model, used for IPsec in RFC5386, could be applied to SEND? 

Regards,
Mark.

> SASS is similar, but uses a different algorithm, and you don't have to
> recalculate each time you move.  For nodes that don't move, it seems
> identical.
> 
> -- 
> Michael Richardson
> -on the road-
> 
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