On Wednesday 05 October 2005 15:25, Igor Sobrado wrote:
>   map fxp0 192.168.2.0/24 -> 10.0.0.5/32 portmap tcp/udp 49152:65535

These are _source_ ports.

>    49152 - 65535   dynamic/private    used by clients to establish a
>                    ports              connection to a server

These are _destination_ ports.

Source and destination ports are entirely different concepts. Source 
port number is just "socket ID" (randomly) selected by OS. Destination 
port is more important thing because TCP/UDP servers listen for 
incoming requests on specified destination ports.

Don't worry about NAT in this case.