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public text v1 · immutable/etc/firewall.user:
#!/bin/sh -x
# 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
# include some convenience functions
. /etc/firewall.functions
### 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
# this is what I added:
iptables -t nat -A prerouting_wan -p tcp --dport 80 -j DNAT --to 10.1.1.2
iptables -A forwarding_wan -p tcp --dport 80 -d 10.1.1.2 -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