Draytek Vigor2800 Series User Manual page 42

The inherent security properties of NAT are somewhat bypassed if you set up DMZ
host. We suggest you to add additional filter rules or a secondary firewall.
Click DMZ Host to open the following page:
If you previously have set up WAN Alias in Internet Access>>PPPoE/PPPoA or Internet
Access>>MPoA, you will find them in Aux. WAN IP list for your selection.
Enable
Private IP
Choose PC
36
Check to enable the DMZ Host function.
Enter the private IP address of the DMZ host, or click Choose PC to
select one.
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.
Vigor2800 Series User's Guide