DSL-2740E User Manual
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Click the Usual Application Name drop-down menu to choose the application you
want to set up for port triggering. When you have chosen an application the default
Trigger settings will populate the table below.
If the application you want to set up isn’t listed, click the User-defined Application
Name radio button and type in a name for the trigger in the Custom application
field. Configure the Start Match Port, End Match Port, Trigger Protocol, Start
Relate Port, End Relate Port, Open Protocol and Nat type.
Click the Apply changes button to finish.
3.3.4 Port Forwarding
This function is used to open ports in your device and redirect data through those
ports to a single PC on your network (WAN-to-LAN traffic). It allows remote users to
access services on your LAN, such as FTP for file transfers or SMTP and POP3 for
e-mail. The device accepts remote requests for these services at your global IP
address. It uses the specified TCP or UDP protocol and port number, and redirects
these requests to the server on your LAN with the LAN IP address you specify.
Note that the specified private IP address must be within the available range of the
subnet where the device is in.
Choose Advanced > Port Forwarding. The page shown in the following figure
appears.