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diff --git a/package/firewall/files/old/firewall.user b/package/firewall/files/old/firewall.user
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+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+iptables -F input_rule
+iptables -F output_rule
+iptables -F forwarding_rule
+iptables -t nat -F prerouting_rule
+iptables -t nat -F postrouting_rule
+
+# The following chains are for traffic directed at the IP of the 
+# WAN interface
+
+iptables -F input_wan
+iptables -F forwarding_wan
+iptables -t nat -F prerouting_wan
+
+### Open port to WAN
+## -- This allows port 22 to be answered by (dropbear on) the router
+# iptables -t nat -A prerouting_wan -p tcp --dport 22 -j ACCEPT 
+# iptables        -A input_wan      -p tcp --dport 22 -j ACCEPT
+
+### Port forwarding
+## -- This forwards port 8080 on the WAN to port 80 on 192.168.1.2
+# iptables -t nat -A prerouting_wan -p tcp --dport 8080 -j DNAT --to 192.168.1.2:80
+# iptables        -A forwarding_wan -p tcp --dport 80 -d 192.168.1.2 -j ACCEPT
+
+### DMZ
+## -- Connections to ports not handled above will be forwarded to 192.168.1.2
+# iptables -t nat -A prerouting_wan -j DNAT --to 192.168.1.2
+# iptables        -A forwarding_wan -d 192.168.1.2 -j ACCEPT