I have a Sonicwall 2040 appliance... its configured with a WAN LAN and DMZ (all done prior to my arrival with the company). The WAN is our public IP addresses, such as E-Mail and Web Servers, LAN is all internal addresses, and i'm not quite sure what the DMZ is.
What I'm wanting to do is enable traffic from my WAN (specifically 1 IP address) to my LAN (again, specifically 1 IP address) for remote access purposes. I have a service setup on my firewall for Terminal Services (port 3389), and a rule setup to all traffic from WAN to LAN for that service. When I access my local server from the LAN, RDP works fine. When I try from my public server, it says the service is not running or it cannot find it.
Any ideas as to what I am doing wrong? Or what configuration option I am missing?
Any thoughts are greatly appreciated and welcome.