[170338] in North American Network Operators' Group
Re: misunderstanding scale, SMTP edition
daemon@ATHENA.MIT.EDU (John Levine)
Wed Mar 26 13:17:42 2014
Date: 26 Mar 2014 17:09:06 -0000
From: "John Levine" <johnl@iecc.com>
To: nanog@nanog.org
In-Reply-To: <4CEDA137-F651-4532-8FFB-AEF84742889C@delong.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
>OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses
>and there’s not a computer on the planet with enough memory (or probably not even enough disk space) to store that
>block list.
>
>Sometimes scale is everything. host-based reputation lists scale easily to 3.2 billion host addresses. IPv6, not so easily.
Quite right. If I were a spammer or an ESP who wanted to listwash, I
could easily use a different IP addres for every single message I sent.
R's,
John
