Is it possible to reconfigure one of the LAN ports on a WRT54GL (running Tomato firmware) to act as a second WAN port?
I have the following networks:
- PPOE connection to ADSL modem (works fine on the normal WAN port)
- WiFi neighbourhood network (in 178.X.X.X range), via a Mikrotik routerboard
which I'd like to put on the WAN side of the router. I'd then like to set up routing so than some traffic (172.X.X.X) is routed to the Mikrotik and the rest to the ADSL modem.
p.s. for practical reasons, I can't use the Mikrotik as the firewall/router.
Edit:
It seems this can be done by editing iptables, can someone tell me exactly how?
Best Answer
You would need to re-flash the firmware with something like DD-WRT which can get you full access to the underlying Linux OS. From there you can configure the iptables, etc. to do whatever you wish on the different interfaces.
You will need a firm understanding of Linux routing, this is not for the casual end-user.
The main page for the DD-WRT project is http://www.dd-wrt.com