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Chapter 5: Configuring the Router
Figure 5-68. Add or Modify a Triggering Entry.
To modify or delete an existing entry:
1. Find the desired entry in the table.
2. Click Edit or Delete as desired in the Edit column.
Click the Enable Selected button to enable selected entries.
Click the Disable Selected button to disable selected entries.
Click the Delete Selected button to delete selected entries.
Once the router is configured, the operation is as follows:
1. A local host makes an outgoing connection to an external host 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 Open Ports
field.
NOTES:
1. When the trigger connection is released, the corresponding opened ports will be closed.
2. Each rule can only be used by one host on the LAN at a time. The trigger connection of other hosts on the LAN will be
refused.
3. Open Ports ranges cannot overlap each other.
5.12.3 DMZ
Choose “Forwarding―DMZ,” then you can view and configure the DMZ host in the screen. The DMZ host feature allows one local
host to be exposed to the Internet for a special-purpose service such as Internet gaming or videoconferencing. The router for-
wards packets of all services to the DMZ host. Any PC whose port is being forwarded must have its DHCP client function disabled
and should have a new static IP Address assigned to it because its IP Address may be changed when using the DHCP function.
