On Wed, May 29, 2019 at 3:49 PM Robert Clarke <[email protected]> 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 ISP (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, > -- -JH
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