[118716] in North American Network Operators' Group
Re: dealing with bogon spam ?
daemon@ATHENA.MIT.EDU (Leslie)
Tue Oct 27 20:11:41 2009
Date: Tue, 27 Oct 2009 17:10:56 -0700
From: Leslie <leslie@craigslist.org>
To: NANOG <nanog@nanog.org>
In-Reply-To: <4AE788DD.3050605@craigslist.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I failed to mention we're seeing this from an unallocated /20 whose
parent /8 is allocated to ARIN (and is partially in use)
Leslie
Leslie wrote:
> First off, I'm not certain if unallocated space in blocks less than a /8
> is properly called bogon, so pardon my terminology if I'm incorrect.
>
> We're seeing a decent chunk of spam coming from an unallocated block of
> address space. We use CYMRU's great list of /8 bogon space to prevent
> completely off the wall abuse, but the granularity stops at /8's.
> Obviously, I've written the originating AS and its single upstream
> provider (sadly without any response). I'm not looking for a one time
> solution for this issue however -- I'd like to permanently block (and
> kick) anyone who's using unallocated space illegitimately.
>
> How have you dealt with this issue? Does anyone publish a more granular
> listing of unallocated space? Does arin have this information somewhere
> other than just probing any given ip via whois?
>
> Thanks!
> Leslie
> Craigslist Spam Hater
