Manage Nat Filtering - NETGEAR D8500 User Manual

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 Inter If
compromised, the DMZ server computer can be used to attack other computers on your
network.
The modem router usually detects and discards incoming traffic from the Internet that is not a response to one
of your local computers or a service or application for which you set up a port forwarding or port triggering rule.
Instead of discarding this traffic, you can direct the modem router to 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. Launch a web browser from a computer or mobile device device that is connected to the network.
2. Enter .routerlogin.
A login window opens.
3. Enter the modem router user name and password.
The user name is admin.The default password is password.The user name and password are case-
sensitive.
The BASIC Home page displays.
4. Select ADVANCED > Setup > WAN Setup.
The WAN Setup page displays.
5. Select the Default DMZ Server check box.
6. Enter the IP address of the server.
7. Click the Apply button.
Your settings are saved.

Manage NAT Filtering

Network Address Translation (NAT) determines how the modem router processes inbound traffic. Secured NAT
protects computers on the LAN from attacks from the Internet but might prevent some Internet games, point-
to-point applications, or multimedia applications from working. Open NAT provides a much less secured firewall
but allows almost all Internet applications to work. Secured NAT is the default setting.
To change the default NAT filtering settings:
1. Launch a web browser from a computer or mobile device that is connected to the network.
2. Enter .routerlogin.
A login window opens.
3. Enter the modem router user name and password.
AC5300 WiFi VDSL/ADSL Modem Router Model D8500
Manage the WAN and LAN Network Settings
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