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Date: Wed, 08 Feb 2006 18:11:05 -0500
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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To: Drew Tomlinson <drew@mykitchentable.net>
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Cc: FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: Best Way To Block Range of Addresses with ipfw2?
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Drew Tomlinson wrote:
> I want to deny access to addresses in this range:
> 
> 84.57.113.0 - 84.61.96.255
> 
> What is the best way to specify this range for ipfw2?  There must be a
> better way than listing a whole bunch of individual networks.

deny ip from 84.56.0.0/13 to any

...comes pretty close.  Use finer-grained allow rule before that if you need to
pass stuff in 84.56.0.0/16, for example.

-- 
-Chuck