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[AfriNIC-rpd] Updated Version of the "IPv4 Soft Landing Policy" now Available Online
Mukom Akong T
tamon at afrinic.net
Mon Feb 21 09:53:17 UTC 2011
An updated version of the "IPv4 Soft Landing Proposal" is now available
on our website at
A text version of the proposal is included below:
Unique Id: AFPUB-2010-v4-005-draft-01
Author(s): Douglas Onyango | Digiclear E.Africa Ltd |
ondouglas at yahoo.com
Draft Version: 11
 Summary of the Problem Being Addressed by this Policy Proposal
Because the Global IPv4 free pool has run out, the IANA has implemented
the Global Policy for the Allocation of the Remaining IPv4 Address Space
- www.afrinic.net/docs/policies/AFPUB-2009-v4-001.html meaning after the
last /8, RIRs will nolonger receive Address space from the IANA as in
the past. This puts AfriNIC in a precarious situation as the current
allocation and assignment Policy cannot be sustained in the mid to longterm.
 Summary of How this Proposal Addresses the Problem
In order to ensure a smooth transition to IPv6, AfriNIC's pool should
be managed to provide members with address space after the IPv4 pool
is depleted. This will help in maintaining IPv4 networks while
deploying IPv6 networks a practice that characterize the transition
period. This document proposes a strategy for allocation and Assignment
and maintenance of AfriNIC's IPv4 pool post exhaustion. This policy
begins when AfriNIC starts to allocation space from the last /8
 The Proposal
This policy (IPv4 Soft Landing), applies to the management of address
space that will be available to AfriNIC after the current IPv4 pool is
depleted. The purpose of this document is to ensure that address space
used in a manner that is acceptable to the AfriNIC community especially
during this time of scarcity.
3.1 Policy Documents to be affected:
IPv4 Allocation Policy
Proposal to Change the Allocation & Assignment Period to 12 months
Local Internet Registry (LIR)
A Local Internet Registry (LIR) is an Internet Registry (IR) that
receives allocations from an RIR and assigns address space to customers
who use its services. LIRs are generally ISPs and their customers are
end-users and possibly other ISPs. LIRs must be members of an RIR like
AfriNIC; which serves the Africa Region and part of the Indian Ocean
(Comoros, Madagascar, Mauritius, and Seychelles).
An Existing LIR is a LIR that assigns address space to 'end-users' and
has already been assigned or allocated IPv4 address space by AfriNIC.
A New LIR, is a LIR that assigns address space to 'end-users' and is a
member of AfriNIC but has not been assigned or allocated any IPv4
address space prior to the Exhaustion phase.
An End User is an organization that receives assignments of IP addresses
exclusively for use in its operational networks
Final /8 block of IPv4 address space, or "Final /8".
The Final /8 block of IPv4 address space, or "Final /8", is the /8 block
of IPv4 address space that has been allocated by the IANA to AfriNIC in
terms of section 2.2 C of the Global Policy for the Allocation of the
Remaining IPv4 Address Space
at the time of exhaustion of the IANA pool of IPv4 address space.
AfriNIC's version of the Global Policy for the Allocation of the
Remaining IPv4 Address Space is also known as AFPUB-2009-v4-001
This proposal describes how AfriNIC shall assign, allocate, and manage
IPv4 resources during the "Exhaustion Phase" which begins when AfriNIC
first needs to assign or allocate IP addresses from the Final /8 block
of IPv4 address space.
3.4 Current Phase:
The "Current Phase" is the status quo at the time of adoption of this
policy. During this phase, AfriNIC will continue allocating or
assigning IPv4 addresses to LIRs and End Users using the current
policies, including AFPUB-2005-v4-001
<http://www.afrinic.net/docs/policies/AFPUB-2006-GEN-001.htm>, and any
future amended versions of such policies.
The current phase will continue until an otherwise-valid request for
IPv4 address space from any LIR or end user to AfriNIC either (a) cannot
be fulfilled with the IPv4 address space available in the AfriNIC pool
(with the exception of the Last /8), or (b) can be fulfilled, but would
leave the AfriNIC IPv4 address pool empty (with the exception of the
The request that results in either of the above conditions being
fulfilled will be the last IPv4 address space request that AfriNIC will
accept from any LIR or End User in the Current Phase. If the request
can be processed in terms of the Current Phase policies, then it will be
so processed; otherwise, it will be processed in terms of Exhaustion
AfriNIC will publicly announce that the Exhaustion Phase has begun at
3.5 Exhaustion Phase:
During the Exhaustion Phase, the following allocation and assignment
policy will be used. This policy applies to both LIRs and End Users,
and applies at all times after the transition to the Exhaustion Phase.
The exhaustion phase will be divided into two parts:-
a) Exhaustion Phase 1
b) Exhaustion Phase 2
3.5.1 Exhaustion Phase 1
During this phase, allocation/assignment of address space will continue
as in the Current phase (/24 for a EU and /22 for a LIR) but the maximum
will change from /10 to /13.
Allocations and assignments will be made from the /8 pool until we reach
a /11. At this point the Exhaustion Phase 2 phase will kick in.
Exhaustion Phase 2
During this phase a minimum allocation/assignment size will be /27. And
a maximum of /22 per allocation/assignment.
3.6) If any LIR or End User requesting IPv4 address space during the
Exhaustion Phase does not already have IPv6 address space, then AfriNIC
shall allocate or assign an IPv6 address block in compliance with the
IPv6 allocation or assignment policies in effect at the time.
3.7) The current allocation and assignment period of 12 months shall be
changed to 8 months. This will help to ensure that LIRs request only for
resources they need in the short to medium term, and promote fairness in
the equitable distribution of the last IPv4 address pool.
3.8 Allocation Criteria
In order to receive IPv4 allocations or assignments during the
Exhaustion Phase, the LIR or End User must have used at least 90% of all
previous allocations or assignments (including those made during both
the Current Phase and the Exhaustion Phase). In the case of new LIRs or
End Users with no previous allocations or assignments, this requirement
does not apply to their first allocation or assignment request.
AfriNIC resources are for the AfriNIC geographical region. For each
allocation or assignment made during the Exhaustion Phase, no more than
10% of these resources may be used outside of the AfriNIC region, and
any use outside the AfriNIC region shall be solely in support of
connectivity back to the AfriNIC region.
3.9 IPv4 Address Space Reserve
A /12 IPv4 address block will be in reserve out of the Last /8. This /12
IPv4 address block shall be preserved by AfriNIC for some future uses,
as yet unforeseen. The Internet is innovative and we cannot predict with
certainty what might happen. Therefore, it is prudent to keep this block
in reserve, just in case some future requirement creates a demand for
When AfriNIC, can no longer meet any more requests for address space
from the last /8 pool because the pool is either empty or has no more
contiguous blocks, the Board will based on the demand and other factors
at the time exercise their prerogative to replenish the exhaustion pool
with whatever address space that will be available to AfriNIC at the
time in a manner that is in the best interest of the community.
Thanks to RPD-ML and especially Alain Aina and Alan Barrett for their
4.0. Revision History (for all but the very first draft)
Removed IPv6 Adoption plans and deployment as requirements for receiving
IPv4 address space in this policy as Members Technology choices are
outside AfriNIC's purview
Changed the scope of the document to cover IPv4 address space outside
the /8 to avoid writing a new policy for IPv4 address space that
AfriNIC might have outside the /8
Removed 4 blocks as maximum possible allocation blocks in policy
To eliminate the possibility of remaining with unusable space in the pool
Changed the Minimum and Maximum Allocation sizes to /27 and /22
to cater for small requests by members transitioning who only need small
blocks for interoperability
Made all the allocation/assignments only usable within the AfriNIC region
to curb Black Market practices that could crop up post exhaustion)
Changed the Problem Statement due to Global IPv4 free pool running out
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