I have an ASA (configuration attached) with an inside network (192.168.255.0/24) that I can access over VPN. I have configured the ASA NAT and Access Rules to allow internet access to inside hosts.
The inside hosts have static IP. Whenever I change a Windows host to use the ASA inside intreface as the network gateway (for internet access), I can no longer RDP onto that host, regardless of whether I am on the inside or VPN network.
However, I can hit the web server (port 80) on one of hosts successfully. RDP "listens on TCP port 3389[1] and UDP port 3389" according to Wikipedia. Im not sure what NAT or Access Rule would be preventing RDP but allowing HTTP?
