Hi ya'll I'm using TomatoVPN and trying to setup a site to site, bi-directional vpn connection. The OpenVPN server (192.168.0.1) is install on my WRT54G and is also the main router to the internet. The openvpn client (10.0.1.100) i'm using OpenVPN GUI installed on Windows 7. I have everything setup with configurations recommended in this forum (using TUN) for bi-directional connectivity. I can ping the server and the 192.168.0.x subnet machines. DNS is pushed to the client, etc. However, the server can't ping the client (10.0.1.100) or devices in the 10.0.1.0 subnet. I can however ping 10.8.0.6 (client) from the server side. If i change to TAP, then everything works, Server can ping the client. So it clearly seems to be a problem with my routing and ip forwarding rules. I am unfamiliar with iptables so can anyone tell me exactly what i need to enter in the firewall script? Thanks in advance!