[ppml] Policy Proposal: 2007-12 IPv4 Countdown Policy Proposal

william(at)elan.net william at elan.net
Wed Mar 21 23:16:03 EDT 2007

On Wed, 21 Mar 2007 michael.dillon at bt.com wrote:

> I am certain that in most of the largest ARIN members, there are similar
> stocks of unused IP addresses that have been lost in the system.

Absolutely. Even publicly available data indicates that with old SWIPs.

> But because there is no telltale cash leakage to alert people to the
> existence of the lost addresses, there is little motivation to mount an
> expedition to seek out and recover these addresses. But, in a few years,
> there will be motivation.

One alternative to waiting until doom time that is within power of
ARIN public policy is to modify so that when somebody asks for new
IP space they have to be able to show not only is their last allocated
block 80% utilized but all other blocks in ARIN system as well
(including legacy blocks). This might cut down on the requests by
some large ISPs and force them to look at their existing ip space
(at the expense of ARIN personnel doing more work when looking at
IPv4 additional allocation requests).

> We should just wait until the natural course of events provides the
> motivation for cleaning out dusty corners and shifting some network
> services onto IPv6.
> --Michael Dillon
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