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Date: Mon, 8 Oct 2007 10:22:56 +0200
From: Paolo Pisati <piso@freebsd.org>
To: "Andrey V. Elsukov" <bu7cher@yandex.ru>
Message-ID: <20071008082256.GA9098@tin.it>
References: <4708D2EE.4010405@psg.com> <4709D44E.5050305@psg.com>
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Cc: Randy Bush <randy@psg.com>, FreeBSD Net <freebsd-net@freebsd.org>
Subject: Re: ipfw nat befuddlement
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On Mon, Oct 08, 2007 at 11:03:35AM +0400, Andrey V. Elsukov wrote:
> Randy Bush wrote:
>> # grep -n nat /etc/ipfw.rules
>> 33:add nat 123 all from any to any
>> 34:add nat 123 config if vr0
> ^^^^^^^^ - add is not needed here.

ipfw nat crash course:

echo "net.inet.ip.fw.one_pass=0" >> /etc/sysctl.conf

and manually add:

ipfw nat 123 config if $IF log
ipfw add nat 123 ip4 from any to any via $IF

or substisute natd_enable/natd_interface in rc.conf with:

firewall_nat_enable="yes"
firewall_nat_interface="$IF"

Done.

bye,
P.