TP-Link TL-WR542G User Guide - Page 49
Port Triggering, Enable All, Disabled All, Delete All, Previous, Incoming Ports, Trigger Port
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3. Click the Save button. Click the Enable All button to make all entries enabled Click the Disabled All button to make all entries disabled. Click the Delete All button to delete all entries Click the Next button to go to the next page and Click the Previous button to return the previous page. ) Note: If you set the virtual server of service port as 80, you must set the Web management port on Security -> Remote Management page to be any value except 80 such as 8080. Or else there will be a conflict to disable the virtual server. 4.7.2 Port Triggering Some applications require multiple connections, like Internet games, video conferencing, Internet calling and so on. These applications cannot work with a pure NAT router. Port Triggering is used for some of these applications that can work with an NAT router. You can set up Port Triggering on this page shown in Figure 4-29: Figure 4-29 Port Triggering Once configured, operation is as follows: 1. A local host makes an outgoing connection using a destination port number defined in the Trigger Port field. 2. The router records this connection, opens the incoming port or ports associated with this entry in the Port Triggering table, and associates them with the local host. 3. When necessary the external host will be able to connect to the local host using one of the ports defined in the Incoming Ports field. ¾ Trigger Port - The port for outgoing traffic. An outgoing connection using this port will "Trigger" this rule. 42