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Re: Anyone notice strange announcements for 174.128.31.0/24
From: "Josh Karlin" <karlinjf () cs unm edu>
Date: Mon, 12 Jan 2009 11:56:40 -0700

At some point 3130 announced these prefixes, and is now prepending other
ASes to them.  Pretty Good BGP (and hence the IAR) sees them as prefix
hijacks.  If you'd like to see the entire list of prefixes, check out:
http://iar.cs.unm.edu/search.php and enter in 3130 as the "Victim AS"

Josh

On Mon, Jan 12, 2009 at 11:52 AM, Paul Stewart <pstewart () nexicomgroup net>wrote:

Same here.. got a notice this morning and while it's false, I still have
no response from Randy neither on this matter...

If they are going to involve our AS numbers and trigger alarms it would
be nice to notify us first... especially on something as major as a
prefix hijacking (potentially)

Paul



-----Original Message-----
From: Majdi S. Abbas [mailto:msa () latt net]
Sent: Monday, January 12, 2009 1:49 PM
To: Michienne Dixon
Cc: nanog () nanog org
Subject: Re: Anyone notice strange announcements for 174.128.31.0/24

On Mon, Jan 12, 2009 at 12:40:42PM -0600, Michienne Dixon wrote:
I'm not entirely certain what is going on but has anyone noticed some
strange announcements for 174.128.31.0/24?

I received a hijack notice that my AS (AS11708) was announcing the
above
IP range.  I verified that I was not when I started noticing some
strange announcements for that range.  Around 10 Am CST AS11911 was
announcing it  (AS_PATH: 1239 2914 3130 11911) then around 11:30 AM
CST
I observed AS12083 announcing it (AS_PATH: 1239 2914 3130 12083).

Interestingly enough, ARIN indicates this is a part of range they have
assigned for reachability testing.
http://ws.arin.net/whois/?queryinput=174.128.31.0

       randy lied but
       no packets died
       enough now

       More seriously, this is indeed reachability research.  Try
emailing
the AS 3130 contacts although I'd imagine Randy will see this.

       Thanks,

       --msa






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