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From: Don Bowman <don@sandvine.com>
To: 'User Ernie' <ernie@spooky.eis.net.au>, freebsd-isp@freebsd.org
Date: Sun, 24 Aug 2003 10:57:07 -0400
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Subject: RE: Blocking Virus ICMP flood
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> From: User Ernie [mailto:ernie@spooky.eis.net.au]
> 
> Does anyone know if ipfw can do someting similar to:
> 
>  deny icmp any any echo tos min-delay
> 
> Which is the Cisco command I use to try and limit the flood 
> style icmp traffic from the
> recent Internet viruses.
> 
> - Ernie.

ipfw add deny icmp from any to any icmptypes 0,8  iptos lowdelay