[ppml] Policy Proposal: 2007-12 IPv4 Countdown Policy Proposal
bicknell at ufp.org
Tue Mar 20 19:36:52 EDT 2007
While I think there has been a lot of good discussion generated
from the IPv4 policy, a lot of it has strayed from the original
policy proposal. I'm going to attempt to bring that back around a
bit as we need to tackle the issue of address space exhaustion.
To that end, I'd like to oversimplify the proposal. Language,
format, and justification aside I believe the proposal can be boiled
down to the following simpler statement:
The RIR's, in order to assure the orderly shutdown of IPv4
allocations should do their best to predict the date at which
there will be no more IPv4 addresses available, should announce
a termination date just before the predicted exhaustion, and
should cease allocations on that date even if there is some
address space still available.
I believe the intent of the authors is to realize a number of potential
- There is a well known date at which no more IPv4 space will be
available, making it easier for those needed addresses to show their
management the need for alternate plans.
- By the RIR's shutting down distributions of addresses at the same
time it prevents the "last RIR standing" from being swamped by every
international company solely because they still have addresses.
Of course, there are drawbacks:
- This requires global coordination.
- We may leave some IPv4 space unused that could otherwise be put to
- This policy itself may cause a run on IP space.
There are alternatives, Owen DeLong just wrote about what would probably
be considered the opposite viewpoint in another message, I quote:
I believe that the system will function and that there is no need
to do anything different until ARIN is unable to fulfill requests.
At that time, ARIN should fulfill request it can on a
first-come-first-serve basis and provide a polite apology in
response to requests which cannot be fulfilled. I do not believe
a change of policy is required in order for ARIN staff to do this.
Last, in an attempt to keep the discussion focused, I'd ask you to
consider if these related topics are relevant to this policy's thread,
along with why I think most are not:
- Reclamation of unused address space. It doesn't matter if we do this
or not, all predictions are we still run out of address space. All
this does is move the date, which is a valid discussion but the topic at
hand here is what happens when the RIR's have no more space to
- Encouraging people to use less IPv4 addresses, including but not
limited to higher fees, required use of NAT, rejustification of existing
IPs. Same issue, it delays the date we run out, but doesn't change
the problem of what the RIR's should do when they run out.
- Are the predictions of when we run out correct? Same problem, doesn't
matter if it's 2010, 2020, or 2050, the question is what do we do when
I'd like to see all three of those issues discussed, just in another
Leo Bicknell - bicknell at ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
Read TMBG List - tmbg-list-request at tmbg.org, www.tmbg.org
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