32 | Chapter 4: Advanced Settings
Wireless Cable Gateway CG3000D-1CXNAS
2. For each port trigger, enter the settings in the Port
Trigger List:
• Trigger Range. To specify the range of
outgoing ports that will be monitored to
trigger the incoming port forwarding rule,
enter the Start Port and End Port.
• Target Range. To specify the range of
incoming ports that will be opened when
triggered, enter the Start Port and End Port.
• Protocol. Select the protocol for the ports:
3. Select the Enable checkbox for the port trigger.
4. Perform one of the following actions:
• Click Apply to save your settings and
activate the port triggers.
• To remove a port trigger, select it’s radio
button and click Delete.
• To return all trigger and target ranges to zero, click Reset.
DMZ Host
You can use the DMZ Host screen to set up a default DMZ computer. Specifying a default
DMZ computer allows you to set up a PC that is available to anyone on the Internet for
services that you have not defined. There are security issues with doing this, so only set up
the DMZ host if you are willing to risk open access. If you do not define a DMZ host the
gateway discards any undefined service requests.
To set up a DMZ host:
1. In the main menu, under Advanced, select DMZ Host.
2. If desired, select the Respond to Ping on WAN Port checkbox.
3. Type the last digit(s) of the IP address in the DMZ Address field.
4. Click Apply.