I need to transfer the configuration on on older router to a new router. The LAN interfaces are a bit different on the new router (GB interfaces instead of 100MB and a VLAN on a network switch module). I am pretty confident that those will not be an issue to configure. My primary concern is the three T1 interfaces on the new router. Will simply copying over the existing config on the old router to the new be sufficient to get these T1s to work? Just plug them in and we're off? This is a first time for me and I don't want to screw it up.