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From: guido@gvr.win.tue.nl (Guido van Rooij)
Message-Id: <199505271818.UAA24447@gvr.win.tue.nl>
Subject: Re: IPFW - Docs?/Questions?
To: nc@ai.net (Network Coordinator)
Date: Sat, 27 May 1995 20:18:16 +0200 (MET DST)
Cc: questions@FreeBSD.org
In-Reply-To: <Pine.BSF.3.91.950524124821.372A-100000@aries.ai.net> from "Network Coordinator" at May 24, 95 12:52:04 pm
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Network Coordinator wrote:
> 
> 
> 	I have been tinkering with IPFW as of late noticing that 
> occassionally someone out there tries to ping -f a system or two over 
> here. What I would ideally like to do is deny all icmp packets from the 
> world as a general rule, but allow them from particular networks or 
> hosts. For example
> 
> ipfw addf deny icmp from 255.255.255.255/32 to 198.69.44.1

ipfw addf deny icmp from 0/0 to 198.69.44.1

-Guido