User manual NETGEAR JWNR2000

[. . . ] Registration is required before you can use our telephone support service. Setup documentation is available on the CD, on the support website, and on the documentation website. When the wireless router is connected to the Internet, click the Knowledge Base or the Documentation link under Web Support on the main menu to view support information. Trademarks NETGEAR and the NETGEAR logo are registered trademarks, and RangeMax and Smart Wizard are trademarks of NETGEAR. [. . . ] 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 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. In the Default DMZ Server fields, enter the IP address for that computer or server. Responding to a Ping on the Internet (WAN) Port 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. Setting the MTU Size The normal MTU value for most Ethernet networks is 1500 bytes, 1492 bytes for PPPoE connections, or 1450 for PPTP connections. For some ISPs, you might need to reduce the MTU size, but this is rarely required and should not be done unless you are sure it is necessary for your ISP connection. For more information, see “Changing the MTU Size” on page 5-16. 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. For more information about NAT, see “How Your Computer Accesses a Remote Computer through Your Router” on page 5-2. In the NAT Filtering area, select either the Secured or the Open radio button. Under usual circumstances, the router has adequate routing information after it has been configured for Internet access, and you do not need to configure additional static routes. You must configure static routes only for unusual cases such as multiple routers or multiple IP subnets located on your network. As an example of when a static route is needed, consider the following case: • • • Your primary Internet access is through a cable modem to an ISP. You have an ISDN router on your home network for connecting to the company where you are employed. When you first configured your router, two implicit static routes were created. A default route was created with your ISP as the gateway, and a second static route was created to your local network for all 192. With this configuration, if you attempt to access a device on the 134. [. . . ] Restoring the Default Configuration and Password This section explains how to restore the factory default configuration settings that reset the router’s user name to admin, the password to password, and the IP address to 192. You can erase the current configuration and restore factory defaults in two ways: • • Use the Erase function of the router. To use the Erase function, see “Erasing the Configuration” on page 6-9. Use the restore factory settings button on the rear panel of the router. [. . . ]