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WRVS4400N User Guide 67
Firewall Tab
Setting Up and Configuring the Router
Change these settings as described here and click Save Settings to apply your changes, or click
Cancel Changes to cancel your changes. Help information is displayed on the right-hand side
of the screen, and click More for additional details.
Port Range Triggering
This is one of the NAPT (Network Address Port Translation) features. Port Range Triggering is
used for special applications that can request a port to be opened on demand. For this feature,
the Wireless Router will watch outgoing packets for specific port numbers. This will trigger the
Wireless Router to allow the incoming packets within the specified forwarding range and
forward those packets to the triggering PC. One of the example applications is QuickTime. It
would use port 1000 for outgoing packets and 2000 for incoming packets.
Application—Enter the name of the application you wish to configure.
Triggered Range—For each application, list the triggered port number range. These are the
ports used by outgoing traffic. Check with the Internet application documentation for the port
number(s) needed. In the first field, enter the starting port number of the Triggered Range. In
the second field, enter the ending port number of the Triggered Range.
Forwarded Range—For each application, list the forwarded port number range. These are the
ports used by incoming traffic. Check with the Internet application documentation for the port
number(s) needed. In the first field, enter the starting port number of the Forwarded Range. In
the second field, enter the ending port number of the Forwarded Range.
Enabled—Select Enabled to enable port range triggering for the relevant application.
Change these settings as described here and click Save Settings to apply your changes, or click
Cancel Changes to cancel your changes. Help information is displayed on the right-hand side
of the screen, and click More for additional details.