Netgear 10400149 用户手册

Customizing Your Network Settings

4-9

them, but there are other applications that might not function well. In some cases, one local 
computer can run the application correctly if that computer’s IP address is entered as the default 
DMZ server.

Incoming traffic from the Internet is usually discarded by the router unless the traffic is a response 
to one of your local computers or a service that you have configured in the Port Forwarding/Port 
Triggering screen. Instead of discarding this traffic, you can have it forwarded to one computer on 
your network. This computer is called the default DMZ server.

The WAN Setup screen lets you configure a default DMZ server.

To assign a computer or server to be a default DMZ server: 

1. Select the Default DMZ Server check box.

2. In the Default DMZ Server fields, enter the IP address for that computer or server.

3. Click Apply.

If you want the router to respond to a ping from the Internet, select the Respond to Ping on 
Internet Port check box. This should be used only as a diagnostic tool, since it allows your router 
to be discovered by Internet scanners. Do not select this check box unless you have a specific 
reason to do so, such as when troubleshooting your connection.

IGPM (Internet Group Management Protocol) proxying is disabled by default. When IGPM 
Proxying is enabled, the WAN IGMP server treats your router as an IGMP client; for LAN 
devices, such as set-up boxes or PCs, the router acts as an IGMP server. The IGMP Proxying 
function lets a LAN device receive the multicast traffic it is interested in from the Internet.

Warning: DMZ servers pose a security risk. A computer designated as the default DMZ 

server loses much of the protection of the firewall, and is exposed to exploits 
from the Internet. If compromised, the DMZ server computer can be used to 
attack other computers on your network.