Draytek Vigor 2950 User Manual page 48

As mentioned above, Port Redirection can redirect incoming TCP/UDP or other traffic on
particular ports to the specific private IP address/port of host in the LAN. However, other IP
protocols, for example Protocols 50 (ESP) and 51 (AH), do not travel on a fixed port. Vigor
router provides a facility DMZ Host that maps ALL unsolicited data on any protocol to a
single host in the LAN. Regular web surfing and other such Internet activities from other
clients will continue to work without inappropriate interruption. DMZ Host allows a defined
internal user to be totally exposed to the Internet, which usually helps some special
applications such as Netmeeting or Internet Games etc.
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/Static IP/PPTP,
you will find them in Aux. WAN IP list for your selection.
42 Vigor2950 Series User's Guide