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Date: Fri, 28 Jul 2006 08:21:42 -0400
From: Bill Moran <wmoran@collaborativefusion.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: icmp packets - disabling via sysctl, or cisco switch ... ?
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User Freebsd wrote:
> 
> Two part question here ...
> 
> first part ... is there a way of just disabling icmp by setting a 
> sysctl, so that a server just doesn't respond to them?
> 
> second part ... is there a way of telling a cisco switch to drop all 
> icmp packets, preferrably to all but an exception list, but to 
> everywhere works as well ...

Sure, just uninstall TCP/IP.  ICMP isn't needed unless you're using
TCP/IP.