From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jochen Vogel <jvogel@it-sec.de>
Subject: GRE/PPTP and modules
Date: Thu, 29 Apr 2004 16:47:01 +0200
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To: netfilter@lists.netfilter.org

Hi,

I did the following
$IPT -t nat -A PREROUTING -d <firewall> -p tcp --dport 1723 -i $EXT -j DNAT
--to-destination <vpn>:1723
$IPT -t nat -A PREROUTING -d <firewall> -p gre              -i $EXT -j DNAT
--to-destination <vpn>
$IPT -A FORWARD -i $EXT -o $RAS -d <vpn> -p TCP --dport 1723 -m state
--state NEW -j ACCEPT
$IPT -A FORWARD -i $EXT -o $RAS -d <vpn> -p GRE              -m state
--state NEW -j ACCEPT

Do i need any modules?

Thx for infos
jo