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Port Triggering
Port triggering allows the router to watch outgoing data for a specific port number. The IP
address of the computer that sends the data is remembered by the router, so that when the
requested data returns through the router, the data will be passed to the specific computer by
way of IP address and port mapping rules. The router opens the port when the Port Triggering
happens. When the computer running the application stops sending the data through this port,
the router will close the port.
1. click to selectEnable.
2. Enter the desired name or description in the Application Name field.
3. In the Trigger Port field, enter a port number. Check with your Internet application
provider for more information on what Trigger Port it is using.
4. Select TCP (Transmission Control Protocol), or UDP (User Datagram Protocol), or
both protocols as the Trigger Port Type.
5. Specify the range of the Public Ports by typing the start and end port numbers in the
required fields.
6. Select TCP (Transmission Control Protocol), or UDP (User Datagram Protocol), or
both (TCP and UDP) as the Public Port Type.
7. Click the Submit button to activate the setting.
Click the Submit button to store the changes.
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HTTP (WEB
Server)
FTP
TELNET
SMTP (Mail
Server)
POP3 (Mail
Server)
IRC
NNTP (News
Server)
TCP
80
TCP
20, 21
TCP
23
TCP
25
TCP
110
TCP
6667
TCP
119
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