[sig-policy] REVISED: prop-066-v003: Ensuring efficient use of historica
Version 3 of the proposal 'Ensuring efficient use of historical IPv4
resources' has been sent to the Policy SIG for review. It will be
presented at the Policy SIG at APNIC 26 in Christchurch, New Zealand,
25-29 August 2008.
The proposal's history can be found at:
This new version of the proposal includes a definition of historical
resources in section 4, "Details of the proposal".
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
randy and jian
prop-066-v003: Ensuring efficient use of historical IPv4 resources
Authors: Brenda D. Tarimel
btarimel at palaunet dot com
pfs at cisco dot com
james at vocus dot com dot au
Date: 22 August 2008
This is a proposal to include all historical address allocations when
assessing a network's eligibility for more IPv4 addresses.
2. Summary of current problem
The unallocated pool of IPv4 addresses is predicted to run out within
the next few years. As the unallocated pool dwindles, it is important
to ensure that the remaining IPv4 addresses are allocated responsibly
Currently, when LIRs apply for new IPv4 allocations from APNIC, they
only have to include the past allocations they have received from
APNIC as part of the documentation and justification process. They do
not have to declare any historical addresses  they may have
received prior to receiving address space from APNIC.
As a result of this, there is a large amount of historical IPv4
address space where little or nothing is known about its use.
At the moment LIRs can receive more scarce IPv4 address space from APNIC
while at the same time hoarding unused historical address space. This
uses up the remaining IPv4 pool more rapidly than is really necessary.
3. Situation in other RIRs
The situation in other RIRs is as follows:
AfriNIC and the RIPE NCC only ask for utilisation of previous
allocations and assignments made by AfriNIC and the RIPE NCC
respectively. They do not require legacy holdings to be declared.
ARIN and LACNIC always ask for utilisation for all previous
allocations and assignments, including all legacy holdings.
This proposal has not been submitted to any other region.
4. Details of the proposal
This is a proposal to modify the criteria for receiving IPv4 address
space so that historical resources are included.
- This proposal applies to all historical resources as defined in
"Policies for historical Internet resources in the APNIC Whois
Database" . Historical records include:
- Registrations transferred to APNIC as part of the AUNIC to
A list of resources transferred to APNIC as part of the
migration is available at:
- Registrations transferred as part of the Early Registration
Transfer (ERX) project
A list of resources transferred to APNIC as part of the ERX
project is available at:
- Historical APNIC resources
Historical APNIC resources were delegated to organisations
by APNIC prior to the introduction of a membership
structure. These resources have always been registered in
the APNIC Whois Database, but if the resource holder did
not become an APNIC member at any time after the
introduction of the membership structure, the resources
were not made subject to current APNIC policies.
- Historical IPv4 resources that are not managed under the
existing historical maintenance or transfer policies will remain
free of fees.
5. Advantages and disadvantages of the proposal
- Ensures that organisations are using scarce IPv4 address space
resources to the fullest extent possible.
- The utilisation of historical IPv4 addresses will be brought
into line with current best practices for address management.
- The remaining IPv4 free pool will be delegated to LIRs that have
a genuine need for IP addresses.
- Organisations can no longer hoard unused address space while at
the same time receive more scarce address space from APNIC's
- LIRs with historical IPv4 addresses may find it time consuming
to change network architecture that uses historical IPv4
addresses in an inefficient manner.
However, the difficulties felt by these networks is outweighed
by the greater benefits of ensuring that the remaining IPv4
address space is delegated to networks with a genuine need for
6. Effect on APNIC members
APNIC members who have applied best practices for address space
management for all their address ranges will not be affected.
APNIC members who have not applied best practices for all their
address ranges may need to modify their management of historical
addresses before they can qualify for IPv4 addresses from APNIC.
There will be no impact on fees paid by members.
7. Effect on NIRs
The proposal has no direct impact on NIRS, but impacts members of NIRs
in the same way it impacts APNIC members.
 Historical resources definition