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Re: anyone has netrange -> cidr conversion script to share?
From: Stephane Bortzmeyer <bortzmeyer () gitoyen net>
Date: Fri, 13 Jun 2003 16:05:33 +0200


On Wed, Jun 11, 2003 at 11:12:54PM -0700,
 william () elan net <william () elan net> wrote 
 a message of 12 lines which said:

 Does anyone here has a script (or perl procedure) for converting range 
of ips (i.e. 10.0.0.0 - 10.0.2.255) into cidr (i.e. result would be 
10.0.0.0/23,10.0.2.0/24 from the example before). 

netmask (available as a Debian package or a FreeBSD port)

~ % netmask -c 10.0.0.0:10.0.2.255 
       10.0.0.0/23
       10.0.2.0/24


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