I am looking for help with my dd-wrt router. Here is my setup:
TP-Link (Original firmware)
Connected to ISP broadband (dynamic IP)
D-Link DIR 600 vB1 (dd-wrt firmware)
Connected to VPN via PPTP WAN (OpenVPN not supported on this dd-wrt firmware)
Routers are connected to each other via TP-Link Powerlines
All devices connected to router 2 use the VPN connection
I do not use the Wi-Fi on router 2 but may in the future
Everything works fine except for one thing that has been bothering me. The VPN provider blocks port 25 (outgoing) which means all devices connected to router 2 cannot send emails! Is there a way I can setup the router 2 to forward outgoing mail on port 25 to router 1 so it uses my home ISP connection?
I don't mind that my incoming mail will have a different IP to my outgoing - unless this will cause problems, if it does then I would like all mail (incoming and outgoing) to use my router 1 connection.
I've read about iptables with dd-wrt but I can't work out if that is what I need or how to implement it, any help would be appreciated.