D-Link DSL-2641B - Wireless G Router User Manual page 38

Section 4 - Troubleshooting
PORT FORWARDING RULES CONFIGURATION
Select a service from the Select a Service drop-down menu for a
pre-configured application or type a name in the Custom Server input
box to define your own application.
Type an IP address in the Server IP address input box to appoint the
PC to receive the forwarded packets.
The External Port Start and External Port End box shows the range
of the ports you want to open on the router. The TCP/UDP means the
protocol type of the opened ports. The Internal Port Start and Internal
Port End box shows the range of the ports in your PC to receive the
forwarded packets
Click on the Add/Apply button to apply settings.
D-Link DSL-2641B User Manual 38