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:chiwawa999at_private] Sent: Thursday, August 29, 2002 4:43 PM To: pen-testat_private 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 ------------------------------------------------------------------------ --- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
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