D-Link DI-206 - Manual (Page 111)

DI-206 ISDN Remote Router
Configuration and Management 99
Diablo server, for example, is used to trigger the exemption process
for the incoming data.
In the example for the game Diablo shown in the above screen, if a
packet is sent out on the TCP port number 6112 (a request by a local
user to a Diablo server on the Internet to join a group game), all
incoming packets on the UDP port 6112 (game data) will not be
translated by NAPT.
Please keep in mind that the user will always initiate use of the special
application. Thus, the first entry should always have the Connection
Type of Outgoing Control. Also, since the defined port number or
range of port numbers will be mapped to the user who triggered the
outgoing control, all incoming data will be sent to that user.
Consequently, only one user can use the special application at a time.