Hi,
Our experience has been that most blacklist operators/owners are more than
willing to remove IPs after a change of ownership, same with updating of geo IP
services.
The bigger problem for us has been the huge number of statically defined or
never updated blacklists/geo blocking by webmasters/postmasters/firewall admins
that take months to get straightened out.
This is what makes the difference in price well worth getting reputable IPs and
avoiding countries that may be considered as potentially unsafe.
Brian
From: NANOG On Behalf Of David Guo
via NANOG
Sent: Wednesday, May 19, 2021 10:24 AM
To: Ross Tajvar ; North American Network Operators' Group
Subject: Re: Buying IPs with poor reputation
Let's say normal IPs are $35, those blocked IPs may be $32, and you'll need
much work to delist from all database.
xTom GmbH
From: NANOG
mailto:nanog-bounces+david=xtom@nanog.org>>
on behalf of Ross Tajvar mailto:r...@tajvar.io>>
Sent: Wednesday, May 19, 2021 4:20:14 PM
To: North American Network Operators' Group
mailto:nanog@nanog.org>>
Subject: Buying IPs with poor reputation
I'm curious if anyone has experience deliberately buying blacklisted blocks, or
blocks that otherwise have poor reputation. Is there a significant price
difference? How do you seek them out? Most of the sellers I've found seem to
focus on blocks with good reputation, or on improving the reputation of a bad
block. But I am interested in purchasing some IPs for internal services where
reputation doesn't really matter.
Thanks,
Ross
