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3.2.2 Special Applications
Some applications require multiple connections, such as Internet gaming, video
conferencing, Internet telephony and others. These applications cannot work when
Network Address Translation (NAT) is enabled. If you need to run applications that
require multiple connections, specify the port normally associated with an application in
the “Trigger” field, then enter the public ports associated with the trigger port to open
them for inbound traffic. The range of the Trigger port is 1 to 65535.
Parameter Description
Popular applications You can select a pre-defined application from the list of Popular
applications, and the ID you wish to fill the setting in. Click Copy
to and the setting you selected will be filled into the specific ID.
Trigger Enter an outbound port number assigned by the application.
Incoming Ports When the trigger packet is detected, the inbound packets to the
specified port numbers are allowed to pass through the NAT
firewall. Type in a range of incoming ports to be triggered. For
instance, “5000-5300” or “9091, 9093-9100”, it depends on the
special application’s requirement.
Enable Check to enable this Special Application rule.
