At 10:11 AM -0400 8/21/02, Bill Cole wrote: >At 9:45 AM -0400 8/21/02, Stefan Jeglinski imposed structure on a >stream of electrons, yielding: >>>According to the global routing table, the entire netblock >>>63.216.0.0/13 is routed as a single route to CAIS as part of AS >>>3491. >> >>Which bring me to this question: >> >>How/where does one sleuth "global routing tables?" I have always >>tried to figure these things out by looking in the ARIN database >>(or RIPE or APNIC), but I know there's got to be a more precise way >>(?) > > >1. If you are a truly multi-homed ISP and run BGP with a defaultless >router somewhere, you have one view of the global routing table >right there. > >2. If you understand a little BGP you might find the various >'looking glass' sites such as http://nitrous.digex.net/ interesting >and useful. > >3. If you are willing to deal with the routes as the ISP's are >willing to register them (as opposed to how they happen to be >announcing them in BGP this minute) you can do whois lookups of IP >addresses against whois.radb.net and get back what the various ISP's >have registered with the Routing Arbiter Database and its various >successors and related systems. The RADB project is described at >http://www.radb.net
RADB is not accurate as it is not supported by some large network providers (and thus does not really reflect current reality). The IP registries, ARIN, RIPE, and APNIC (and the smaller ones like KRNIC that they delegate to) are authoritative. -- Alex von Thorn Deputy Head of Programming, Torcon III http://www.torcon3.on.ca/ Vice-Chair, Seattle in '05 NASFiC bid http://www.seattle2005.org/ 2002 Aurora Award: Fan Writing http://worldhouse.com/alex/ ############################################################# This message is sent to you because you are subscribed to the mailing list <[EMAIL PROTECTED]>. To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]> Send administrative queries to <[EMAIL PROTECTED]>
