[arin-ppml] ARIN-prop-145 STLS Listing Immunity

Scott Leibrand scottleibrand at gmail.com
Mon May 2 14:50:09 EDT 2011

On Mon, May 2, 2011 at 10:59 AM, ARIN <info at arin.net> wrote:

> ARIN-prop-145 STLS Listing Immunity


> Add a subsection to Section 12 (Resource Review) of the NRPM:
> ARIN may not revoke any resources issued by ARIN that are presently
> listed as "available" on the ARIN Specified Transfer Listing Service
> unless there is sufficient reason to believe that the holder does not in
> fact intend to transfer these resources.

Another way to accomplish this would be with the following language from the
original transfer policy proposal, 2008-2:

The fact that an IPv4 address holder is making IPv4 addresses available for
transfer, pursuant to this policy, does not, in and of itself, indicate that
the address holder lacks the need required for an allocation under ARIN

> Rationale:
> An entity may list space as available and might begin the process of
> moving out of that space in order to facilitate the transfer. A review
> after such work was in progress might reveal that the addresses are not
> sufficiently utilized.
> Additionally, because posting a listing on the STLS signals directly to
> ARIN that an entity believes it can use addresses more efficiently, ARIN
> might simply use STLS listings in order to trigger audit under 12.2(c).
> This would not be fair. (And would be a disincentive to using the ARIN
> STLS at all in order to list available space)

I believe that ARIN has made assurances that this will not be done, but I
would support such assurances into policy as well if people think it's

This policy would also serve to increase the value of the ARIN STLS over
> other possible transfer listing services, increasing the transparency of
> the transfer market, particularly to ARIN, who wishes to ensure that
> transfers take place within NRPM 8.3.
I think it's important to make any "Safe Harbor" statement apply to all IPv4
addresses being made available for transfer (including those on eBay etc.)
not just those offered through ARIN's Specified Transfer Listing
Service. ARIN has repeatedly made clear that the STLS is completely
optional, which I believe is the right way to approach it.  I don't believe
we should be giving the STLS preferential treatment in the transfer policy
in any way.


P.S. Thanks for all the straightforward, well-thought-out proposals.
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