[118715] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

dealing with bogon spam ?

daemon@ATHENA.MIT.EDU (Leslie)
Tue Oct 27 19:58:36 2009

Date: Tue, 27 Oct 2009 16:57:17 -0700
From: Leslie <leslie@craigslist.org>
To: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

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


home help back first fref pref prev next nref lref last post