APNIC Last /8 Policy Implementation Report

SanjayaServices Area Director

Overview Background APNIC’s 3 Stages of IPv4 Exhaustion Stage 1– 2 transition Stage 2 – 3transition Life in Stage 3 Conclusion References

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Background

• 16 Feb 2009: prop-062 (Use of final /8) was finalized

• 6 Mar 2009: ICANN board ratified the ‘Global Policy for the Allocation of the Remaining IPv4 Address Space’, which directs IANA to split its last five /8 blocks evenly to each of the RIRs

• 26 Aug 2010: APNIC Secretariat presented the Three-Stage final /8 implementation plan

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APNIC’s 3 Stages of IPv4 Exhaustion

• Stage 1• IPv4 available at IANA for normal distribution

• Stage 2• Began when IANA distributed the last five blocks

to the RIRs• Stage 3

• Began when APNIC reached the last /8 of IPv4 in its free pool

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APNIC’s 3 Stages of IPv4 Exhaustion

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Stage 1 – 2 transition

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Stage 1 – 2 transition

• Challenge• To predict the next request to IANA that will

trigger IANA’s last five /8 blocks condition• To prepare coordinated public communications

between ICANN/IANA and all the RIRs

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Stage 1 – 2 transition• 19 Jan 2011: APNIC qualifies for subsequent

IPv4 allocations from IANA, and submitted a request

• 20 Jan – 2 Feb 2011: Public communication coordination with ICANN/IANA, RIRs and NIRs

• 31 Jan 2011: APNIC received two IPv4 /8 blocks from IANA that triggered the last five /8 IANA allocations to the RIRs

• 3 Feb 2011: IANA IPv4 depletion is publicly announced

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NRO Press Release

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Montevideo, 3 February 2011 – The Number Resource Organization (NRO) announced today that the free pool of available IPv4 addresses is now fully depleted. On Monday, January 31, the Internet Assigned Numbers Authority (IANA) allocated two blocks of IPv4 address space to APNIC, the Regional Internet Registry (RIR) for the Asia Pacific region, which triggered a global policy to allocate the remaining IANA pool equally between the five RIRs. Today IANA allocated those blocks. This means that there are no longer any IPv4 addresses available for allocation from the IANA to the five RIRs.

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Stage 2 – 3 transition

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Stage 2 – 3 transition

• Challenge• To set up a strict first-come-first-served

mechanism• To apply the same mechanism to APNIC direct

Members and NIR members

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IPv4 Delegation Practice in Stage 2

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EvaluationQueue

Delegate resource

Request more info

Approved queue

Decline request

Apply last /8 policy

Delegation approval

Clarification questions

Declined request

Last /8 policy applied

Requestor

5 business days

Approved?

Yes

NoNeed more info?

Yes

No

More than /8 left?

No

Yes

Time

Stage 2 Queues

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Evaluation Queue*

Request IDLast reply

received1616326 1/03/20111616707 2/03/20111613113 8/03/20111602004 17/03/20111616322 19/03/20111589930 8/04/20111602005 11/04/20111602666 13/04/20111613884 20/04/20111615352 20/04/20111616320 21/04/20111616648 22/04/2011

Approved Queue*

Request IDLast reply received Time Size

1611996 20110321 11:45:05 /161572180 20110321 21:09:04 /201617240 20100323 13:25:00 /181617235 20110325 18:10:00 /211601863 20110326 16:39:04 /111601879 20110326 16:39:06 /13+/141616365 20110331 15:33:11 /191612362 20110402 17:26:20 /141615293 20110404 17:39:08 /161618089 20110405 19:22:00 /201618125 20110408 12:45:00 /161618238 20110409 11:25:00 /18

RequestorResponse

5 days? 5 days?

EnoughInfo?

Y

YN

Y

Delegate and email member

*) Not real data, for illustration only

Last /8reached

Stage 2 Concluded

• 15 April 2011: The APNIC Secretariat announced it reached its final /8 of available IPv4 space

• 328 requests approved• 181 requests missed their allocations

• Most of them accepted a /22 allocation• 6 complaints received – all resolved now

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Life in Stage 3

• From 15 April to 27 August 2011• IPv4 delegation: 583/30 economies (6/day)• IPv6 delegation: 242/26 economies (2.5/day)• New members: 181/17 economies (~2/day)

• New policies implemented on 9 May 2011 to reduce delegation size to a /24 with no renumbering requirement

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Life in Stage 3• What if a Member needs more IPv4 space

than its last /22 delegation?• The IPv4 Transfer Policy is available to allow

transfers of unused address space to the Member• Use the network operator group or apnic-talk

mailing list to find transfer sources• Inter-regional transfers can be received under

APNIC policy, where other regions permit this • Additional addresses may be distributed from IANA

if returns are made to IANA and the global policy allows it

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Conclusion• The APNIC community worked well together in

managing IPv4 exhaustion by preparing a set of policies that gave the APNIC Secretariat guidance to manage the IPv4 exhaustion

• The APNIC Secretariat successfully implemented the IPv4 last /8 policy through careful planning and execution of processes and procedures, and by keeping the community well informed throughout the stages

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References• Global Policy for the Allocation of the Remaining IPv4 Address

Space (IANA)• Policies for IPv4 address space management in the Asia Pacific

region (apnic-124-v001)• Prop-062: Use of final /8• Prop-088: Distribution of IPv4 addresses once the final /8

period starts• Prop-093: Reducing the minimum delegation size for the final /8

policy• Prop-094: Removing renumbering requirement from final /8

policy• Prop-050: IPv4 address transfers• Prop-095: Inter-RIR IPv4 address transfer proposal

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