User's Manual
Table Of Contents

57D-Link DIR-645 User Manual
Section 3 - Software Configuration
Application Rules
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 router. 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 firewall (public) ports associated with the trigger port to open them for inbound traffic.
The following parameters will be available for configuration:
Checkbox:
Check the box on the left side to enable the Application Rule.
Name:
Enter a name for the rule. You may select a predefined
application from the Application drop-down menu and click
<<.
Application:
Displays a list of predefined application to use in the rules.
Port (Trigger):
This is the port used to trigger the application. It can be
either a single port or a range of ports.
Port (Firewall):
This is the port number on the Internet 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.
Traffic Type:
Select the protocol of the firewall port (TCP, UDP, or All).
Schedule:
The schedule of time when the Application Rule will be enabled. The schedule may be set to Always, which will allow the particular service to always
be enabled. You can create your own times in the Schedules page.
Click on the Save Settings button to accept the changes made.
Click on the Don’t Save Settings button to discard the changes made.










