We have a private line T1 installation with two Cisco 1841 T1 routers. The T1 is only going to be used to allow remote desktop access to a terminal server in on of the offices. Using Cisco's access control lists (ACL) is there a way we can lock it down so only traffic can only flow in one direction via port 3389 TCP to specific IP 192.168.0.5? Please share your thoughts on the commands that would make this possible. The routers are going in tomorrow (Thursday) so any help would be appreciated.