From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Rob Sterenborg" <rob@sterenborg.info>
Subject: RE: FTP and netfilter
Date: Wed, 23 Apr 2003 20:34:23 +0200
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To: 'Matti Luoma' <matti.luoma@bitboys.com>, netfilter@lists.netfilter.org

> What kinda lines i need to get FTP working from from LAN, if=20
> i use a linux as gateway machine..

insmod ip_conntrack_ftp
insmod ip_nat_ftp

iptables -P FORWARD DROP
iptables -A FORWARD -I <eth_lan> -o <eth_inet> -s <net_lan> -j ACCEPT

iptables -t nat -A POSTROUTING -s <net_lan> -o <eth_inet> -j SNAT
--to-destination <ip_inet>
(Or, if you have a dynamic IP or a ppp inet nic :)
iptables -t nat -A POSTROUTING -s <net_lan> -o <eth_inet> -j MASQUERADE


Gr,
Rob