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Figure 4-64 Port Triggering 

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Trigger Port - The port for outgoing traffic. An outgoing connection using this port will trigger 

this rule.   

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Trigger Protocol - The protocol used for Trigger Ports, either TCP,  UDP, or All  (all 

protocols supported by the router).   

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Open Port - The port or port range used by the remote system when it responds to the 

outgoing request. A response using one of these ports will be forwarded to the PC which 

triggered this rule. You can input at most 5 groups of ports (or port sections). Every group of 

ports must be separated with ",", for example, 2000-2038, 2046, 2050-2051, 2085, 

3010-3030.  

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Open Protocol - The protocol used for Open Port, either TCP, UDP, or ALL (all protocols 

supported by the router).   

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Status - The status of this entry, Enabled means the Port Triggering entry is enabled.   

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Edit - To modify or delete an existing entry.   

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Common Applications - Some popular applications already listed in the drop-down list of 

Incoming Protocol. 

1. Click 

the Add New button, the next screen will pop-up as shown in Figure 4-65. 

2.  Select a common application from the Common Applications drop-down list, then the 

Trigger Port field and the Open Port field will be automatically filled. If the Common 

Applications do not have the application you need, enter the Trigger Port and the Open 

Port manually. 

3.  Select the protocol used for Trigger Port from the Trigger Protocol drop-down list, either 

TCP, UDP, or All. 

4.  Select the protocol used for Incoming Ports from the Open Protocol drop-down list, either 

TCP or UDP, or All. 

5. Select 

Enabled in Status field.   

6. Click 

the 

Save button to save the new rule.