Special Applications - SMC Networks 7004VBR - annexe 2 Manual

7.7.2 | Special Applications

Some applications require multiple connections, such as Internet games, video conferencing, and
Internet telephony. These applications cannot work with a pure NAT router because of the
firewall function. However, the Special Applications feature allows some of these applications to
work with the router. Should the Special Applications feature fail to make an application work,
you can try setting your computer as a DMZ host.
Trigger: This is the outbound port number issued by the application.
Incoming Ports: When the trigger packet is detected, the inbound packets sent to specified
port numbers are allowed to pass through the firewall.
The router provides some predefined settings. To add a predefined setting to your list, select an
application and click "Copy to".
Note: Only one computer can use the Special Application tunnels at any given time.
For a full list of ports and the services that run on them, see
http://www.iana.org/assignments/port-numbers
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