I am in a situation where I have 2 routers installated for my network. The first router is also a modem and was issued by the ISP and is locked on the LAN side to the 10.X.X.X address range. The second device is a router/wireless/firewall which its LAN portion addess has been set to the 192.168.0.X network range. The first router/modem is connect via cat5 from its LAN port to the second routers WAN port and internet is coming through fine to the 192.168.0.x network. The problem I am having is enabling remote access (RDP 3389) to forward through from the first router, to the second and onto the desired workstation (192.168.0.3).
Currently in both routers I have enabled port forwarding for TCP port 3389 to forward to the 192.168.0.3 workstation. When I test this connection from a client outside on the internet it does not make a connection. Can anyone please tell me if I am doing something wrong in this scenario?