[RLUG] port forwarding with iptables on an linksys router running openwrt

[Austin Stanhope]

I flashed OpenWRT on my Linksys wrt54gl router (yay, finally), and I’m 
trying to forward port 5445 to one of my machines. I am going off the 
example they had for forwarding port 80 to a machine, which works 
perfectly for me, however, going off the same example for forwarding a 
different port is not working. This is from the part of my 
/etc/firewall.users where I am doing port forwarding. Can anyone shed 
some light on this?



# Forward port 80 for the web server on penguin (192.168.1.103)
iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 80 -j DNAT 
--to 192.168.1.103
iptables -A forwarding_rule -i $WAN -p tcp --dport 80 -d 192.168.1.103 
-j ACCEPT
# Forward port 5445 for smorts to penguin (192.168.1.103)
iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 5445 -j DNAT 
--to 192.168.1.103
iptables -A forwarding_rule -i $WAN -p tcp --dport 5445 -d 192.168.1.103 
-j ACCEPT
iptables -t nat -A prerouting_rule -i $WAN -p udp --dport 5445 -j DNAT 
--to 192.168.1.103
iptables -A forwarding_rule -i $WAN -p udp --dport 5445 -d 192.168.1.103 
-j ACCEPT


Thanks,

-Austin

-- 
Austin Stanhope                      www.cse.unr.edu/~stanhope
Robotics Research                    www.cse.unr.edu/~society
Computer Science and Engineering     www.cse.unr.edu
University of Nevada, Reno           www.unr.edu

Abuse it and you'll loose it.  I WILL Procmail you.
Think before you click that forward button.