Re: [v6ops] Revised Internet Drafts for allocation of IPv6 space for LISP EIDs

Brian Haberman <brian@innovationslab.net> Wed, 23 October 2013 16:12 UTC

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Date: Wed, 23 Oct 2013 12:12:18 -0400
From: Brian Haberman <brian@innovationslab.net>
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To: Gert Doering <gert@space.net>
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Cc: "v6ops@ietf.org WG" <v6ops@ietf.org>
Subject: Re: [v6ops] Revised Internet Drafts for allocation of IPv6 space for LISP EIDs
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Hi Gert,

On 10/23/13 12:06 PM, Gert Doering wrote:
> Hi,
> 
> On Wed, Oct 23, 2013 at 11:36:50AM -0400, Brian Haberman wrote:
>> Keep in mind that the referenced draft went through IETF Last
>> Call and was subsequently sent back to the WG due to the concerns raised
>> about routing and potentially creating a parallel address registry
>> outside of the RIRs.
> 
> These are the concerns I share, so I consider this pushback to be good
> news.  And no, I do not have reasonable ideas how to solve this, as 
> I see this area as one of the hardest points in deploying LISP in a
> mixed LISP-talks-to-non-LISP model.
> 

There is more to this than just the LISP-talking-to-non-LISP model.  The
goal is essentially to avoid a mapping lookup by having a globally
assigned blocks for EIDs.  It is an implementation optimization that
allows a LISP router to determine that a particular IPv6 address is (or
is not) reachable via LISP.

Regards,
Brian