[ppml] Policy Proposal 2007-24: IPv6 Assignment Guidelines

Member Services info at arin.net
Wed Sep 5 08:44:04 EDT 2007

On 30 August 2007, the ARIN Advisory Council (AC) concluded their
initial review of "IPv6 Assignment Guidelines" and accepted it as a 
formal policy proposal for discussion by the community.

The proposal is designated Policy Proposal 2007-24: IPv6 Assignment
Guidelines. The proposal text is below and can be found at:

All persons in the community are encouraged to discuss Policy Proposal
2007-24 prior to it being presented at the ARIN Public Policy Meeting in
Albuquerque, New Mexico, 17-18 October 2007. Both the discussion on the
Public Policy Mailing List and at the Public Policy Meeting will be used
to determine the community consensus regarding this policy proposal.

The ARIN Internet Resource Policy Evaluation Process can be found at:

ARIN's Policy Proposal Archive can be found at:


Member Services
American Registry for Internet Numbers (ARIN)

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Proposal 2007-24
IPv6 Assignment Guidelines

Author: Leo Bicknell and Ed Lewis

Proposal type: new

Policy term: permanent

Policy statement:

Delete the text in and Replace the text in section with
the following text:

Assignments by LIRs /48 or smaller will not be reviewed by ARIN.
Assignments greater than /48 will be reviewed to see if the additional
space is warranted according to the 0.94 HD ratio policy. If the space
is not warranted, ARIN will consider the excess space to be available
for a different assignment, lowering the overall utilization score of
the LIR.


The existing section does not provide clear guidance on how ARIN
should treat prefixes allocated to a site should an ISP come back for
additional space in the future. This makes it difficult for LIR's to
know if they are allocating in accordance with the rules under which
they will be judged in the future. The existing section also provides no
guidence on what the LIR or ARIN should do in the case a larger prefix
is necessary.

Timetable for implementation: immediate

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