RE: IP Range

["Matthew L. McGuirl" <mmcguirl () lucidsecurity com>]

John,

The easiest way to learn the CIDR blocks you're looking for is to have
your client contact their ISP (or ISPs) and collect the list for you.
Alternatively, you could have your client grant their connectivity
provider(s) the ability to pass the info directly to you.

Happy hunting,

Matt McGuirl
Lucid Security

-----Original Message-----
From: John Madden [mailto:chiwawa999 () yahoo com] 
Sent: Thursday, August 29, 2002 4:43 PM
To: pen-test () securityfocus com
Subject: IP Range

Hello,

Where just about to begin a pentest engagement and the
client wants us to know if we can find out how many IP
blocks they have. Is there a way to find out all the
IP blocks of a company ? You've got the usual e-mail
domain name to find at least one but what if they have
2,3 + IP blocks ?

Any ideas ?

thanks 

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