[arin-ppml] ARIN-prop-130: IPv4 Transition Reservation for Every ASN

Jon Lewis jlewis at lewis.org
Fri Jan 21 15:40:44 EST 2011

I'd exclude legacy AS holders unless they have non-legacy PI ARIN space. 
IME, most legacy space holders got more space than they needed or even 
currently need due to classfull/classless transition.  They don't need one 
last /24 reserved to help with a v4->v6 transition.

On Fri, 21 Jan 2011, ARIN wrote:

> ARIN received the following policy proposal and is posting it to the
> Public Policy Mailing List (PPML) in accordance with the Policy
> Development Process.
> The ARIN Advisory Council (AC) will review the proposal at their next
> regularly scheduled meeting (if the period before the next regularly
> scheduled meeting is less than 10 days, then the period may be extended
> to the subsequent regularly scheduled meeting). The AC will decide how
> to utilize the proposal and announce the decision to the PPML.
> The AC invites everyone to comment on the proposal on the PPML,
> particularly their support or non-support and the reasoning
> behind their opinion. Such participation contributes to a thorough
> vetting and provides important guidance to the AC in their deliberations.
> Draft Policies and Proposals under discussion can be found at:
> https://www.arin.net/policy/proposals/index.html
> The ARIN Policy Development Process can be found at:
> https://www.arin.net/policy/pdp.html
> Mailing list subscription information can be found
> at: https://www.arin.net/mailing_lists/
> Regards,
> Communications and Member Services
> American Registry for Internet Numbers (ARIN)
> ## * ##
> ARIN-prop-130: IPv4 Transition Reservation for Every ASN
> Proposal Originator: Matthew Kaufman
> Proposal Version: 1
> Date: 21 January 2011
> Proposal type: New
> Policy term: Permanent
> Policy statement:
>  Upon receipt of the last IPv4 /8 from IANA, ARIN shall reserve one
> /24 of IPv4 space from that block for every ARIN-registered AS number,
> including assigned legacy AS numbers in the ARIN region. Organizations
> may apply to receive the space that has been reserved under the existing
> address space justification policy.
> Rationale:
>  IPv4 space is running out. Most organizations will find that their
> IPv4 to IPv6 transition plans require a small amount of additional IPv4
> space, but given the current pace of IPv6 deployment and transition it
> is highly likely that most organizations will discover this fact AFTER
> no additional IPv4 space is available, including space that has been set
> aside in a transition technology pool.
>  This policy ensures that every organization that previously qualified
> due to unique routing policy and/or multihoming will be able to request
> and receive a small amount of transition space at any time after runout.
>  This policy also has the beneficial side effect of accelerating
> general IPv4 runout, which will encourage IPv6 deployment.
>  These reservations will consume less than 1/3rd of the final /8.
> Timetable for implementation: Immediate
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  Jon Lewis, MCP :)           |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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