SM,
At NANOG 54, ARIN reported that they are down to 5.6 /8s. If just four ISPs ask
for a /10 for CGN, we burn one of those /8s.
Is that really a good idea?
Ron
-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On Behalf Of
SM
Sent: Thursday, February 09, 2012 10:45 AM
To: ietf(_at_)ietf(_dot_)org
Subject: Re: Last Call: <draft-weil-shared-transition-space-request-
14.txt> (IANA Reserved IPv4 Prefix for Shared Address Space) to BCP
At 03:03 PM 1/30/2012, The IESG wrote:
The IESG has received a request from an individual submitter to
consider the following document:
- 'IANA Reserved IPv4 Prefix for Shared CGN Space'
<draft-weil-shared-transition-space-request-14.txt> as a BCP
On its December 15, 2011 telechat, the IESG reviewed version 10 of
this
document and requested various changes. These changes are reflected in
the draft version 14 and the IESG now solicits community input on the
changed text only. Please send substantive comments to the
ietf(_at_)ietf(_dot_)org
mailing lists by 2012-02-16. Exceptionally, comments may be sent to
Is that a two-weeks Last Call?
Will the determination of consensus be made only on the basis of this
Last Call?
In Section 3:
"A Service Provider can number the interfaces in question from
legitimately assigned globally unique address space. While this
solution poses the fewest problems, it is impractical because
globally unique IPv4 address space is in short supply."
Unique IPv4 address space is not in short supply in some regions. If
it is globally in short supply, I gather that several regions have
already reached their IPv4 Exhaustion phase. I haven't seen any
announcements about that.
"While the Regional Internet Registries (RIR) have enough address
space to allocate a single /10 to be shared by all Service
Providers,
they do not have enough address space to make a unique assignment
to
each Service Provider."
The above is incorrect as RIRs are still providing unique IPv4
assignments to service providers that request IPv4 addresses. On
reading this draft, I conclude that as IPv4 addresses are nearly
exhausted, the only option left is to deploy Carrier Grade NAT
instead of requesting IPv4 addresses from a RIR.
For the determination of consensus, I do not support this proposal.
Regards,
-sm
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