Draytek 5500 Series manual Enable, Choose PC

If you previously have set up WAN Alias in Internet Access>>PPPoE, you will find them in Aux. WAN IP list for your selection.

Enable	Check to enable the DMZ Host function.
Private IP	Enter the private IP address of the DMZ host, or click Choose PC
	to select one.
Choose PC	Click this button and then a window will automatically pop up, as
	depicted below. The window consists of a list of private IP
	addresses of all hosts in your LAN network. Select one private IP
	address in the list to be the DMZ host.

When you have selected one private IP from the above dialog, the IP address will be shown on the following screen. Click OK to save the setting.

VigorPro5500 Series User’s Guide 47