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Date:      22 Jun 1999 14:17:20 +0200
From:      Dag-Erling Smorgrav <des@flood.ping.uio.no>
To:        Dean <dean@thegrid.net>
Cc:        freebsd-security@FreeBSD.ORG
Subject:   Re: ip firewall and icmp/dos.
Message-ID:  <xzpyahcjupb.fsf@flood.ping.uio.no>
In-Reply-To: Dean's message of "Mon, 21 Jun 1999 22:35:39 -0700"
References:  <376E9ECA.F30CC3FC@telebot.net> <4.1.19990621221636.0091fac0@mail.thegrid.net>

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Dean <dean@thegrid.net> writes:
> allow icmp from any to any in icmptype 0,3,4,11,12,14,16

4,12,14,16 are unnecessary. You only need 0,3,11 (and 8 if you're not
afraid of being ping-flooded - see ICMP_BANDLIM). I use:

pass icmp from any to any icmptype 0,3,8,11

DES
-- 
Dag-Erling Smorgrav - des@flood.ping.uio.no


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