Hi Andy, On Fri, 25 Sep 2009, Andy Saykao wrote:
> This is why I needed to know what IP blocks belong to AS1234, so I could > find out how much traffic was actually coming from AS1234 on our > Internet link. Some (possibly all?) Whois servers can provide you with this information with: whois -h whois.ripe.net -i origin AS1234 % Information related to '194.110.40.0/23AS1234' route: 194.110.40.0/23 descr: Imatran Voima Corporation descr: EUnet-FI aggregate origin: AS1234 mnt-by: AS790-MNT source: RIPE # Filtered % Information related to '194.110.44.0/23AS1234' route: 194.110.44.0/23 descr: Carelcomp Power descr: EUnet-FI aggregate origin: AS1234 mnt-by: AS790-MNT source: RIPE # Filtered % Information related to '193.110.32.0/21AS1234' route: 193.110.32.0/21 descr: Fortum origin: AS1234 mnt-by: TE-ENERGY-NOC source: RIPE # Filtered (an inverse query looking for objects with an origin of AS1234). I don't know how definitive it is - I've queried several large AS and got nothing back. It may be this functionality is only available in the RIPE whois server. There's also no guarantee the results are going to be current or accurate. -Ronan _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
