Not sure on the best way to do this. Here is my setup:Cisco 1841 Software (C1841-ADVIPSERVICESK9-M), Version 15.1(2)T1, RELEASE SOFTWARE (fc1)Cisco Internal IP:192.168.X.254Cisco External IP 64.X.X.5 (NAT)Netopia DSL Router:Internal IP: 192.168.X.253...