Hi Dean,

You’ve resumed my thinking !
As long as it doesn't support allocation on nibble boundaries I will oppose it.


Le 4 févr. 2015 à 14:54, Dean Pemberton <dean@internetnz.net.nz> a écrit :

There are a number of things that concern me about this proposal. 

1) it doesn't appear to support needs based allocation
2) it doesn't support allocation on nibble boundaries which operators have said repeatedly is a major issue. 

As such I do not support this proposal in its current form. 

On Wednesday, 4 February 2015, HENDERSON MIKE, MR <MICHAEL.HENDERSON@nzdf.mil.nz> wrote:

I agree with Owen








From: sig-policy-bounces@lists.apnic.net [mailto:sig-policy-bounces@lists.apnic.net] On Behalf Of Owen DeLong
Sent: Wednesday, 4 February 2015 4:05 p.m.
To: Masato Yamanishi
Cc: sig-policy@lists.apnic.net
Subject: Re: [sig-policy] [New Policy Proposal ] prop-112: On demand expansion of IPv6 address allocation size in legacy IPv6 space


I will again oppose this as written. I would much rather see policy deliver nibble-boundary based allocations.


I would rather see such organizations issued new /28s than expand these /32s into /29s.




On Feb 3, 2015, at 9:55 AM, Masato Yamanishi <myamanis@gmail.com> wrote:


Dear SIG members

The proposal "prop-112: On demand expansion of IPv6 address allocation
size in legacy IPv6 space" has been sent to the Policy SIG for review.

It  will be presented at the Open Policy Meeting at APNIC 39 in Fukuoka,
Japan on Thursday, 5 March 2015.

We invite you to review and comment on the proposal on the mailing list
before the meeting.

The comment period on the mailing list before an APNIC meeting is an
important part of the policy development process. We encourage you to
express your views on the proposal:

     - Do you support or oppose this proposal?
     - Does this proposal solve a problem you are experiencing? If so,
  tell the community about your situation.
     - Do you see any disadvantages in this proposal?
     - Is there anything in the proposal that is not clear?
     - What changes could be made to this proposal to make it more

Information about this proposal is available at:




prop-112-v001: On demand expansion of IPv6 address allocation size in
               legacy IPv6 space

Proposer:    Tomohiro Fujisaki

1. Problem statement

    IPv6 minimum allocation size to LIRs is defined as /32 in the "IPv6
    address allocation and assignment policy"[1].

    In late 2006, sparse address allocation mechanism has implemented
    to manage APNIC IPv6 address pool. The block `2400:0000::/12' has
    managed with this mechanism.

    Before 2006, /29 was reserved for all /32 allocations by sequential
    allocation method made from those old /23 blocks (Legacy IPv6

    These reserved blocks might be kept unused in the future.

2. Objective of policy change

    This proposal modifies the eligibility for organizations in the
    legacy IPv6 block to extend their IPv6 address space up to a /29
    (/32 -/29) by request basis.

3. Situation in other regions

    The policy "Extension of IPv6 /32 to /29 on a per-allocation vs
    per-LIR basis" is adopted in RIPE-NCC and LIRs in RIPE region can
    get up to /29 by default.

4. Proposed policy solution

    - define 'legacy IPv6 address blocks'

    - Add following text in the policy document:

      for Existing IPv6 address space holders

      LIRs that hold one or more IPv6 allocations in the legacy IPv6
      address blocks are able to request extension of each of these
      allocations up to a /29 without meeting the utilization rate for
      subsequent allocation and providing further documentation.

5. Advantages / Disadvantages


      It is possible to utilize address blocks which is potentially
      unused into the future.


      Some people may argue this will lead to inefficient utilization of
      IPv6 space since LIRs can obtain huge address size unnecessarily.
      However, this will not happen because larger address size needs
      higher cost to maintain that address block.

6. Impact on resource holders

      NIRs must implement this policy if it is implemented by APNIC.

7. References

      [1] IPv6 address allocation and assignment policy

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