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Date:      Thu, 20 Apr 2000 09:37:25 +1000
From:      Gregory Bond <gnb@itga.com.au>
To:        Olaf Hoyer <ohoyer@fbwi.fh-wilhelmshaven.de>
Cc:        freebsd-ipfw@FreeBSD.ORG
Subject:   Re: Pinging Firewall 
Message-ID:  <200004192337.JAA25250@lightning.itga.com.au>
In-Reply-To: Your message of Wed, 19 Apr 2000 15:55:24 %2B0200.

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> Question: In which ways does a firewall handles pings?

It is part of the low-level networking code in the kernel.

> And, more important, in which phase of the TCP/IP receiving process of the
> ping may it be blocked?

Ping has nothing to do with TCP.  Ping uses ICMP packets.
 
You can block pings using the appropriate rules in ipfw.




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