[63692] in North American Network Operators' Group
Finding ASN from IP address
daemon@ATHENA.MIT.EDU (Avleen Vig)
Thu Oct 9 13:30:15 2003
Date: Thu, 9 Oct 2003 09:49:32 -0700
From: Avleen Vig <lists-nanog@silverwraith.com>
To: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
I want to create a mapping of IP addresses to ASN, for a specific like
of IP addresses. Eg:
1.2.3.4
12.34.56.78
etc, gathered from my system logs.
What is the best way of doing this?
I thought about something along the lines of:
install routing software (zebra?)
pass software the IP's, get it to spit back a string from which I can
grab the ASN
Two problems being I don't know which software to install that can do
that, or where to get a copy of the current routing table, so that I can
feed that to the software.
Suggestions appreciated.
--
Avleen Vig
Systems Administrator
Personal: www.silverwraith.com
EFnet: irc.mindspring.com