[arin-ppml] Waiting List IPv4 blocks transferred after issuance

Jimmy Hess mysidia at gmail.com
Wed May 29 17:04:36 EDT 2019

On Wed, May 29, 2019 at 3:49 PM Robert Clarke <robert at rjfc.net> wrote:

> Hi Hayee,
> A legitimate ISP leasing their space is of course is legal. In this case
> I'm talking about bad actors who provide false information to ARIN to get
> large block sizes, and then turn around and lease them to third parties. My
> point is that transferring/selling IPv4 blocks is not the only way to make
> a large amount of money by providing fraudulent information to ARIN. For
> this reason it does not make sense to use the transfer/block size
> information that John provided as validity that a /19 or lower somehow
> leads to less fraud.

It can help demonstrate that /19 or lower leads to fewer suspect transfers
that ARE the potential fraud of one major type.
The fact that other kinds of fraud may exist is true,  but can be
considered separately.

Fraudulent ISP ``leasing'' addresses  ALSO  puts  the end user at higher
risk,  and thus
provides strong encouragement for the end recipient/customer to discover
the fraud
and make sure that  THEIR need for IP addresses does not get satisfied by
an invalid leasing.

Because,  you see...  when ARIN revokes  the IP space from the fraudulent
(the ISP that is not really an ISP but an entity "Leasing" IP addresses not
for ISP services):

then every entity that had "leased"   IP addresses from that entity will
 no longer have those
leased IP addresses  after the revocation and return to the waiting list of
the bogus ISP's aggregate block.

> Thanks,
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