N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Setting Up a Default DMZ Server
The default DMZ server feature is helpful when using some online games and videoconferencing applications that are incompatible with Network Address Translation (NAT). The N300 wireless modem router is programmed to recognize some of these applications and to work correctly with 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.
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.
Incoming traffic from the Internet is usually discarded by the N300 wireless modem router unless the traffic is a response to one of your local computers or a service that you have configured in the Port Forwarding 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.In the last Default DMZ Server field, type the last digit of the IP address for that computer. To remove the default DMZ server, enter 0 (zero).
2.Select the Default DMZ Server check box, and click Apply.
Setting Up Quality of Service (QoS)
Quality of Service (QoS) is an advanced feature that can be used to prioritize some types of traffic ahead of others. The N300 wireless modem router can provide QoS prioritization over the wireless link and on the Internet connection.
The N300 wireless modem router supports
Chapter 7. Advanced Settings (Part 1) 119
