[56005] in North American Network Operators' Group
Re: scripts to map IP to AS?
daemon@ATHENA.MIT.EDU (Stephen Gill)
Fri Feb 21 02:49:03 2003
From: "Stephen Gill" <gillsr@yahoo.com>
To: <nanog@merit.edu>, "'Johannes Ullrich'" <jullrich@euclidian.com>
Date: Fri, 21 Feb 2003 01:47:16 -0600
In-Reply-To: <20030220181319.CA4E191282@trapdoor.merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
Hi Johannes,
] > Anybody have a pointer to scripts to map IP to AS?
] Grab a routing table snapshot from the routeviews archive and run it
] through parse_bgp_dump from CAIDA's CoralReef package. Then use
] CAIDA::ASFinder or Net::Patricia to do the lookups.
In fact I have 2 scripts to do just this.
- Script #1 uses a route-server for a smallish list of IPs.
- Script #2 uses the method listed above and pipes IPs into the CAIDA
lookup tree of a BGP table offline. Once you've installed CoralReef
it's really not much more work to get the customization you need for
lookups.
Contact me off-list if you're interested in either one.
Cheers,
-- steve
