2012/1/31 Justin M. Streiner <strei...@cluebyfour.org> > On Tue, 31 Jan 2012, Grant Ridder wrote: > > What is keeping you from advertising a more specific route (i.e /25's)? >> > > Many providers filter out anything longer (smaller) than /24. >
Some will accept it but not propagate it upstream. This may be useful in redirecting all the traffic from a large AS if you are directly connected. > > jms > > > On Tue, Jan 31, 2012 at 12:00 PM, Kelvin Williams <kwilli...@altuscgi.com >> >wrote: >> >> Greetings all. >>> >>> We've been in a 12+ hour ordeal requesting that AS19181 (Cavecreek >>> Internet >>> Exchange) immediately filter out network blocks that are being advertised >>> by ASAS33611 (SBJ Media, LLC) who provided to them a forged LOA. >>> >>> The routes for networks: 208.110.48.0/20, 63.246.112.0/20, and >>> 68.66.112.0/20 are registered in various IRRs all as having an origin AS >>> 11325 (ours), and are directly allocated to us. >>> >>> The malicious hijacking is being announced as /24s therefore making route >>> selection pick them. >>> >>> Our customers and services have been impaired. Does anyone have any >>> contacts for anyone at Cavecreek that would actually take a look at ARINs >>> WHOIS, and IRRs so the networks can be restored and our services back in >>> operation? >>> >>> Additionally, does anyone have any suggestion for mitigating in the >>> interim? Since we can't announce as /25s and IRRs are apparently a pipe >>> dream. >>> >>> -- >>> Kelvin Williams >>> Sr. Service Delivery Engineer >>> Broadband & Carrier Services >>> Altus Communications Group, Inc. >>> >>> >>> "If you only have a hammer, you tend to see every problem as a nail." -- >>> Abraham Maslow >>> >>> >> > >
