[161250] in North American Network Operators' Group
Dreamhost/AS26347 unauthorized bgp announcement
daemon@ATHENA.MIT.EDU (Matsuzaki Yoshinobu)
Wed Mar 6 04:00:14 2013
Date: Wed, 06 Mar 2013 17:59:54 +0900 (JST)
To: nanog@nanog.org
From: Matsuzaki Yoshinobu <maz@iij.ad.jp>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
According to RIPE RIS, AS26347 announced a bunch of prefixes again.
- http://www.ris.ripe.net/dashboard/26347
First suspicious announcement was started 2013-03-06 07:52:40 UTC, and
last seen 2013-03-06 08:33:56 UTC. 195 prefixes total.
It seems these unauthorized announcements have the same profile as
before - AS26347 shrinks the prefix lenght of their received prefix
somehow upto /20, and re-originates the prefix with origin AS26347.
Any known bugs?
Regards,
-----
Matsuzaki Yoshinobu <maz@iij.ad.jp>
- IIJ/AS2497 INOC-DBA: 2497*629
