[ppml] APNIC policy proposal to create a regulated market in IPv4 addresses

Scott Leibrand sleibrand at internap.com
Sat Aug 4 17:22:23 EDT 2007

David Conrad wrote:
> I would be curious to know real world experiences of folks who 
> exercise section 8 of the NPRM.

We recently transfered some IP space and ASNs from a company we 
acquired, and the process wasn't too difficult, once we got the 
appropriate internal folks involved to come up with the documents 
showing legal proof of the acquisition.

> Also, does anyone believe ISPs are going to remove the filters that 
> implicitly limit the length of a usable (for the purposes of highest 
> likelihood of global routability) IPv4 prefix to a /24?  If so, why?

I don't think anyone expects the default maximum prefix length accepted 
to get longer than /24 any time soon.  The problem I see with prop-050 
is that it bypasses the APNIC minimum allocation length (usually /20 or 
/21, sometimes /22) and allows allocations to be carved up into /24's 
and sold.  If we see that actually happening, it will be much more 
difficult in the future to appropriately filter deaggregates (/24's, 
/23's, etc.) if the IPv4 routing table grows to the point that networks 
want to do so.


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