Netgear AC1450 User Manual - Page 33
Default DMZ Server, Advanced > Setup > WAN Setup - port forwarding
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AC1450 Smart WiFi Router • Disable IGMP Proxying. IGMP proxying allows a computer on the local area network (LAN) to receive the multicast traffic it is interested in from the Internet. If you do not need this feature, you can select this check box to disable it. • MTU Size (in bytes). The normal MTU (maximum transmit unit) value for most Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. For some ISPs, you might need to reduce the MTU. Reduce the MTU only if you are sure that it is necessary for your ISP connection. See Change the MTU Size on page 34. • NAT Filtering. Network Address Translation (NAT) determines how the router processes inbound traffic. Secured NAT provides a secured firewall to protect the computers on the LAN from attacks from the Internet, but might prevent some Internet games, point-to-point applications, or multimedia applications from functioning. Open NAT provides a much less secured firewall, but allows almost all Internet applications to function. 3. Click Apply. Your changes are saved. Default DMZ Server The default DMZ server feature is helpful when you are using some online games and videoconferencing applications that are incompatible with Network Address Translation (NAT). The router is programmed to recognize some of these applications and to work correctly with them, but other applications might not function well. In some cases, one local computer can run the application correctly if the IP address for that computer 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. The router usually detects and discards incoming traffic from the Internet that is not a response to your local computers or a service that you configured in the Port Forwarding/Port Triggering screen. Instead of discarding this traffic, you can have the router forward the traffic to one computer on your network. This computer is called the default DMZ server. To set up a default DMZ server: 1. Select Advanced > Setup > WAN Setup. 2. Select the Default DMZ Server check box. 3. Type the IP address. 4. Click Apply. Your change takes effect. NETGEAR genie Advanced Home 33