[ppml] IPv4 address and routing slot markets

Jon Lewis jlewis at lewis.org
Tue Oct 30 09:44:32 EDT 2007

On Mon, 29 Oct 2007, Stephen Sprunk wrote:

> Thus spake "Bill Darte" <BillD at cait.wustl.edu>
>> Please tell me simply what keeps those who wish to de-aggregate
>> their available blocks beyond that which ARIN will sanction...from
>> using the gray or black market to do so.
> There is a theory that a non-trivial number of ISPs will filter at ARIN's
> defined prefix lengths, and therefore deaggregation beyond those lengths
> will be pointless unless one only wants the block(s) for private use --
> which none of us should care about.

The trouble is, there's a non-trivial number of networks who deaggregate 
their CIDRs and only announce the subnets (many of which end up smaller 
than RIR-minimum allocations).

Who wants to be the first to filter these networks and ignore their 

  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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