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Chapter 5: Configuring the Router
To modify or delete an existing entry:
1. Find the desired entry in the table.
2. Click Edit or Delete as desired on the Edit column.
Click the Enable/Disable Selected button to make selected entries enabled/disabled.
Click the Delete Selected button to delete selected entries.
NOTE: If you set the service port of the virtual server as 80, you must set the Web management port on the Security → Remote
Management page to be any other value except 80 such as 8080. Otherwise, there will be a conflict to disable the virtual
server.
5.12.2 Port Triggering
Choose “Forwarding―Port Triggering,” then you can view and add port triggering entry on this page (shown in Figure 5-67).
Some applications require multiple connections, such as Internet games, video conferencing, Internet telephoning, and so on. You
can use Port Triggering for applications that cannot work with a pure NAT router.
Figure 5-67. Port Triggering.
• Trigger Port—The port for outgoing traffic. An outgoing connection using this port will trigger this rule.
• Trigger Protocol—The protocol used for Trigger Ports, either TCP, UDP, or All (all protocols supported by the router).
• 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 that triggered this rule. You can input up to 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.
• Open Protocol—The protocol used for Open Port, either TCP, UDP, or ALL (all protocols supported by the router).
• Status—The status of this entry, Enabled means the Port Triggering entry is enabled.
• Edit—Modify or delete an existing entry.
• Common Applications—Some popular applications already listed in the drop-down list of Incoming Protocol.
To add a new rule, follow the steps below.
1. Click the Add New button, then the next screen will pop-up.
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, UDP, or All.
5. Select Enabled in the Status field.
6. Click the Save button to save the new rule.
