nanog mailing list archives

Re: IPv6 mistakes, was: Re: Looking for an IPv6 naysayer...


From: Owen DeLong <owen () delong com>
Date: Fri, 18 Feb 2011 06:55:49 -0800


On Feb 18, 2011, at 3:16 AM, Iljitsch van Beijnum wrote:

On 18 feb 2011, at 12:00, Patrick W. Gilmore wrote:

How can they "return" stuff to ARIN that they got from IANA in the first place?

ARIN seems to be getting the very long end of the legacy stick.

But last time I checked, the United States is in the ARIN region.  And ARIN did not exist when the US DoD got its 
space.  (In fact, I do believe the reason "IP space" exists is because the DoD paid someone to come up with the 
idea? :)

True, but how is all of that relevant?

If the US DoD wants more space, it has to ask ARIN, right?  Are you suggesting it should deal with a different 
organization depending on which direction the IP addresses flow?

Supposed it was space ARIN assigned the DoD?

Policies like giving each RIR one of the final five /8s were carefully created to give each RIR equal access to 
address space. Automatically giving legacy space to the RIR for the region that the holder of the legacy space is in 
is incompatible with that, and means that ARIN will get virtually all of it.

To me, it seems both natural and fair that legacy space (especially /8s) is returned to IANA and then redistributed 
over the RIRs.

By the way, IANA only deals in /8s. However, a lot of people got legacy /16s or other non-/8 sizes, so some /8s that 
are marked "legacy" actually contain a lot of unused space. Each of those /8 is "administered" by a RIR, but it's 
unclear (to me at least) whether that means that RIR gets to give out that space in its region or not. And if not, 
what is supposed to happen with this space. It's a significant amount, about half the size of the class E space:

RIR      Administerd by        Delegated           Free

afrinic         33.55 M           8.71 M        24.85 M
apnic          100.66 M          77.95 M        22.72 M
arin           671.09 M         592.04 M        79.05 M
ripencc         67.11 M          63.01 M         4.10 M


To the best of my knowledge, any RIR is free to allocate or assign any space it administers according to the policies
set by that RIRs policy development process.

If you feel that legacy resources returned to ARIN should be fed back to IANA, you are welcome to submit an
appropriate policy to the ARIN policy development process in order to encourage such an action. Absent such
a policy, I think your odds of achieving what you consider natural and fair are limited.

I think that what is considered natural and fair by some is not considered so by others.

Owen



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