Hi all, Just a small update.
Off-list Andree and me have been working together with Kenneth from dreamhost to try and figure out what exactly happened and which device or party orginated these prefixes. Unfortunately no hard conclusions can be drawn from the data available to us, especially since we lack proper insight into this Any2 routeserver. I also want to emphasize that Kenneth and Dreamhost have been very forth coming in sharing data (configs, stats, networkplans) to find the root cause. We have put additional monitoring in place to try and catch more data if this happens a next time. Thank you all for being on top of incidents like this! Kind regards, Job On Mar 6, 2013, at 7:29 PM, Andree Toonk <andree+na...@toonk.nl> wrote: > .-- My secret spy satellite informs me that at 2013-03-06 12:59 AM > Matsuzaki Yoshinobu wrote: >> 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? > > > Sounds indeed like an exact copy of the incident on January 11: > http://seclists.org/nanog/2013/Jan/243 > > That time the prefixes seem to also have been learned via a route-server > in LA. > > The strange thing is that the majority of the 'hijacked' prefixes (today > and in January) are new more specifics (not seen before). > (Using some kind of BGP route optimizer?). > > This time it affected 203 unique prefixes and 133 ASns. > Below a list of some of the affected ASns > > 20115 Charter Telecom. > 4837 China Unicom > 8151 UNINET Mexico > 11427 Roadrunner > 42961 MTC GPRS Kuwait > 7303 Telecom Argentina S.A. > 25135 Vodafone > 7018 AT&T > 6389 BellSouth.net > 8220 Colt > 19262 Verizon > 9143 ZIGGO > 6830 UPC > 5089 Virgin Media > > > Cheers, > Andree > > > > -- AS5580 - Atrato IP Networks
