[6125] in North American Network Operators' Group
Re: Mapping IP -> ASN
daemon@ATHENA.MIT.EDU (Avi Freedman)
Fri Nov 15 12:39:20 1996
From: Avi Freedman <freedman@netaxs.com>
To: lyndon@esys.ca
Date: Fri, 15 Nov 1996 12:27:28 -0500 (EST)
Cc: nanog@merit.edu
In-Reply-To: <SIMEON.9611151010.A15165@cezanne.esys.ca> from "Lyndon Nerenberg" at Nov 15, 96 10:02:10 am
> Is there a tool available that will take an IP address and return the
> ASN attached to that network? I've been in situations before where this
> information would be useful, but not having access to the BGP routing
> information I'm not sure how to do this? (I've looked around some
> "likely" web sites - such as Merit - but haven't found anything.)
>
> The pressing need is for the ASN associated with 198.161.92.0. This
> network is connected to I*star, but I can't tell which of I*star's
> three ASNs it's homed on. (And they aren't being responsive to queries.)
>
> --lyndon
Telnet to route-server.cerf.net and type
sho ip bgp 198.161.92.0
Or go to nitrous.digex.net and select one of their viewers (mae-east,
pennsauken, mae-west); click on BGP; and enter 198.161.92.0 in the box...
Avi
