Re: ARIN IP6 policy for those with legacy IP4 Space

[Dan White <dwhite () olp net>]

On 08/04/10 18:00 +0000, bmanning () vacation karoshi com wrote:
> On Thu, Apr 08, 2010 at 12:50:26PM -0500, Dan White wrote:
> > On 08/04/10 17:17 +0000, bmanning () vacation karoshi com wrote:
> > >	in the IPv4 space, it was common to have a min allocation size of 
> > >	a /20 ... or 4,096 addresses ... and yet this amnt of space was
> > >    allocated to someone who only needed to address "3 servers"... say
> > >	six total out of a pool of four thousand ninty six.  
> >
> > Granted, that may have been the case many years ago.
> >
> > However, this was not our experience when we obtained addresses, and the
> > ARIN rules as I understand them would not allow such an allocation today.
>
>         i picked a fairly recent example - the min allocation
>         size has fluctuated over time.  still it is not the case
> 	that most folks will get -exactly- what they need - they 
> 	will - in nearly every case - get more address space than
>         they need - due to the min allocation rules

We did, on our first allocation. We were well over 90% utilization and when
we asked our upstream ISP for more addresses, we were informed they would
not provide us a 17th /24. We scrambled to get our documentation together
for ARIN. We had to show efficient use of those 16 /24s, and we had to
document our immediate (12-24 month) need for addresses to get them.

> > >    Thats a huge amnt of wasted space.  If our wise and pragmatic leaders
> > >    (drc, jc, et.al.) are correct, then IPv4 will be around for a very
> > >    long time.
> > >
> > >    What, if any, plan exists to improve the utilization density of the
> > >	existant IPv4 pool?  
> >
> > I believe your question is based on an outdated assumption.
>
>         and that outdated assumption is?

The assumption that ARIN allocations are based on anything other than 12-24
month need (with only a few exceptions).

If there are a significant number of sparse allocations of IPv4 blocks in
ARIN, then that's a good indication that allocation rules need to be
updated.

--
Dan White