TP-LINK TL-WR641G User Manual download pdf (Page 37)

TL-WR641G 108M Wireless Router User Guide

Figure 5-20 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.

 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).

 Incoming Ports Range - 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 at most 5 groups of ports

(or port section). Every group of ports must be apart with ",". For example,

2000-2038, 2050-2051, 2085, 3010-3030.

 Incoming Protocol - The protocol used for Incoming Ports Range, either TCP,UDP,

or ALL (all protocols supported by the router).

 Enable - The Enable checkbox enables port forwarding for the application.

 Common Applications - Some popular applications already list in the pull-down

list.

To add a new rule, enter the following data on the Port Triggering screen.

1. Enter a port number used by the application when it generates an outgoing

request.

2. Select the protocol used for Trigger Port from the pull-down list, either TCP, UDP,

or All.

3. Enter the range of port numbers used by the remote system when it responds to

the PC's request.

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TP-LINK TL-WR641G User Manual Page 37