TD-W8970N Wireless N ADSL2+ Modem Router User Guide
6. Click Save/Apply to enable virtual server and then you will see your setting as shown in
Figure 4-25.
) Note:
If you select the service from the drop-down list, the External Port Start, External Port End,
Internal Port Start, Internal Port End and the Protocol will be added in the table automatically. You
only need to enter the Server IP Address for the Virtual Server.
4.4.5.2 Port Triggering
Choose “Advanced Setup”Æ“NAT”Æ“Port Triggering”, you can set Port Triggering on the
screen (shown in Figure 4-27).
Some applications require that specific ports in the Router's firewall should be opened for access
by remote devices. Port Trigger dynamically opens up the 'Open Ports' in the firewall when an
application on the LAN initiates a TCP/UDP connection to a remote device using the triggering
ports. The Router allows the remote party from the WAN side to establish new connections back to
the application on the LAN side using the open ports. A maximum 32 entries can be configured.
Figure 4-27
¾ Port Triggering Table: The table indicates the information about the Port Triggering entries.
• Application (Name): This is the name of the Port Triggering. It is exclusive and must be
filled.
• Trigger: It includes the Protocol and the Start and End value of the Trigger Ports.
• Open: It includes the Protocol and the Start and End value of the Open Ports.
• WAN Interface: The WAN Service Interface setting the Port Triggering.
¾ Add: Click the button to add a new entry.
¾ Remove: Select the check box in the table (shown in Figure 4-27) and then click the Remove
button, then the corresponding entry will be deleted in the table.
37