Mailing List SIMS@mail.stalker.com Message #14768
From: NetHead <nethead@pecandeluxe.com>
Subject: (OT) Interpreting CIDR network info
Date: Wed, 29 Sep 2004 12:08:29 -0500
To: SIMS List <SIMS@mail.stalker.com>
X-Mailer: Claris Emailer 2.0v3, January 22, 1998
I realize this is a bit off-topic, but it is relevant in that sometimes
when trying to set up a blacklist for a range of IP's, my WHOIS reveals
only a CIDR designation for the network I am suspicious of.

For example, 218.175.0.0/16... how do I interpret that? I have read some
of the RFC's on CIDR notation, but it still boggles my mind. Would that
mean that they own the entire range from 218.175.0.0-218.175.254.254?

Is there an easy way to read CIDR? or a tool that will do the conversion?

Thanks for any and all help.



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|     Doug Starkey                             |
|     Network Administrator                    |
|     Pecan Deluxe Candy Company               |
|     2570 Lone Star Drive                     |
|     Dallas, TX 75212-6308                    |
|     e-mail: nethead@pecandeluxe.com          |
|     voice: 214-631-3669 Ext. 108             |
|     fax: 214-631-5833                        |
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