D-Link DI-624 - Manual (Page 22)

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Using the Configuration Menu (continued)
Advanced > Applications
Some applications require multiple connections, such as Internet gaming, video
conferencing, Internet telephony and others. These applications have difficulties
working through NAT (Network Address Translation). Special Applications makes
some of these applications work with the DI-624. If you need to run applications that
require multiple connections, specify the port normally associated with an application
in the “Trigger Port” field, select the protocol type as TCP or UDP, then enter the
public ports associated with the trigger port to open them for inbound traffic.
The DI-624 provides some predefined applications in the table on the bottom of the
web page. Select the application you want to use and enable it.
Note! Only one PC can use each Special Application tunnel.
Name:
This is the name referencing the special application.
Trigger Port: This is the port used to trigger the application. It can be either
a single port or a range of ports.
Trigger Type: This is the protocol used to trigger the special application.
Public Port: This is the port number on the WAN side that will be used to
access the application. You may define a single port or a
range of ports. You can use a comma to add multiple ports or
port ranges.
Public Type: This is the protocol used for the special application.