Draft Policy ARIN-2011-4: Reserved Pool for Critical Infrastructure

Status: NRPM Section 4.4

Tracking Information

Discussion Tracking

Mailing List:

Formal introduction on PPML on 3 February 2011

Origin - ARIN-prop-123

Draft Policy - 3 February 2011 (with staff assessment)

Last Call - 18 April through 2 May 2011

AC reccomended adoption - 24 May 2011

Adopted by the Board - 10 June 2011

Implemented - 27 July 2011

Public Policy Mailing List

ARIN Public Policy Meeting:


ARIN Advisory Council:

AC Shepherds:
Scott Leibrand and David Farmer


ARIN Board of Trustees:

10 June 2011


Previous version(s)


27 July 2011

Draft Policy ARIN-2011-4
Reserved Pool for Critical Infrastructure

Version/Date: 16 Feb 2011

Policy term: 36 Months following implementation

Policy statement:

ARIN will place an equivalent of a /16 of IPv4 address space in a reserve for Critical Infrastructure, as defined in section 4.4. If at the end of the policy term there is unused address space remaining in this pool, ARIN staff is authorized to utilize this space in a manner consistent with community expectations.


Section 4.10 of the NRPM is insufficient with respect to insuring the continued operation of critical infrastructure. This proposal, if adopted, will protect those resources with a reasonable amount of reserved v4 address space and prevent an overrun of CI needs by NRPM Section 4.10 or any successor. The intent is to separate CI needs and make a distinct pool available to insure the continuity of CI allocations per NRPM Section 4.4 for at least 36 months.

Timetable for implementation: Immediate