does portmapping work in reverse? say i have an AEBS and i change port 1 from the external to port 2 on the internal network, would my outgoing traffic from my internal network on port 2 be forwarded to port 1 on the external network? the same goes for on a mac - is there a command i can do to make portmapping on device, in reverse aswell. say i wanted to make an L2TP server running on os x server run on port 23, i would need to map on the AEBS and on the client. or is there a different way i could do this?