[arin-ppml] Policy Proposal 123: Reserved Pool for Critical Infrastructure

ARIN info at arin.net
Fri Nov 19 10:47:48 EST 2010

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:

The ARIN Policy Development Process can be found at:

Mailing list subscription information can be found
at: https://www.arin.net/mailing_lists/


Communications and Member Services
American Registry for Internet Numbers (ARIN)

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Policy Proposal 123: Reserved Pool for Critical Infrastructure

Proposal Originator: Martin Hannigan

Proposal Version: 1.0

Date: 19 Nov 2010

Proposal type: Temporary

Policy term: October 20, 2011 00:00 UTC

Policy statement:

Upon receipt of the last /8 that the IANA will allocate to ARIN per the
Global Policy for the Allocation of the Remaining IPv4 Address Space,
ARIN will place a contiguous /20 in reserve for Critical Infrastructure.


During the attempted fix of Section 4.10 we had consensus that 4.10 was
insufficient and potentially damaging and unbalanced with respect to
transition efforts. In order to enable the community to work to fix this
problem in a responsible manner, we need to insure that we do not break
the Internet or cause unnecessary hardship or cost to underserved
markets. This policy will protect those resources with a reasonable
amount of reserved v4 address space.

This proposal should be considered an emergency proposal. IANA
exhaustion is likely to occur prior to the next ARIN meeting.

Timetable for implementation: Immediate

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