User manual BELKIN F5D7631-4-ETEL

[. . . ] 17 Manually Configuring Network Settings . 63 INTRODUCTION Thank you for purchasing the ADSL Modem with Built-In 802. 11g Wireless Router (the Router). In minutes, you will be able to share your Internet connection and network your computers. The following is a list of features that make your new Router an ideal solution for your home or small office network. OVERVIEW Key Features Integrated 802. 11g Wireless Access Point 802. 11g is an exciting new wireless technology that provides up to 54Mbps (nearly five times faster than 802. 11b) data rates. [. . . ] Disabling the firewall protection will not leave your network completely vulnerable to hacker attacks, but it is recommended that you leave the firewall enabled. 33 UNDERSTANDING THE WEB-BASED USER INTERFACE Application Gateways Settings Application gateways let you select ports to be open for certain applications to work properly with the Network Address Translation (NAT) feature of the Router. A list of popular applications has been included to choose from. Select your application from the drop-down list from the bottom of the screen. If your application is not here, you will need to check with the application vendor to determine which ports need to be configured. You can manually input this port information into the Router. Choosing an Application Select the row that you want to copy the settings to from the drop-down list, select the row you want to copy to, and then click "Copy To". The settings will be transferred to the row you specified. Click "Apply Changes" to save the setting for that application. 34 UNDERSTANDING THE WEB-BASED USER INTERFACE Virtual Servers Virtual Servers allow you to route external (Internet) calls for services such as a web server (port 80), FTP server (Port 21), or other applications, through your Router to your internal network. Since your internal computers are protected by a firewall, machines from the Internet cannot get to them because they cannot be "seen". If you need to configure the Virtual Server function for a specific application, you will need to contact the application vendor to find out which port settings you need. Entering Settings into the Virtual Server To enter settings, enter the last digit of your LAN IP address in the space provided for the internal machine, input the Protocol Type (TCP or UDP), and the LAN Port & Public Port number required to pass, select "Enable" and click "Set". Opening ports in your firewall can pose a security risk. You can enable and disable settings very quickly. When you enable this feature, you must enter the MAC address of each client on your network to allow network access to each, or copy the MAC address by selecting the name of the computer from the "DHCP Client List". To enable this feature, select "Enable". Next, click "Apply Changes" to save the settings. 38 UNDERSTANDING THE WEB-BASED USER INTERFACE DMZ (Demilitarized Zone) If you have a client PC that cannot run an Internet application properly from behind the firewall, you can open the client up to unrestricted two-way Internet access. This may be necessary if the NAT feature is causing problems with an application such as a game or video conferencing application. The computer in the DMZ is not protected from hacker attacks. 39 UNDERSTANDING THE WEB-BASED USER INTERFACE To put a computer in the DMZ, enter the last digits of its LAN IP address in the Static IP field and click "Apply Changes" for the change to take effect. If you are using multiple Public (WAN) IP addresses, it is possible to select which Public (WAN) IP address the DMZ host will be directed to. Type in the Public (WAN) IP address you wish the DMZ host to direct to, enter the last two digits of the IP address of the DMZ host computer, and click "Apply Changes". Utilities The Utilities screen lets you manage different parameters of the Router and perform certain administrative functions. Restart Router Sometimes it may be necessary to restart or reboot the Router if it begins working improperly. Restarting or rebooting the Router will NOT delete any of your configuration settings. 40 UNDERSTANDING THE WEB-BASED USER INTERFACE Restarting the Router to Restore Normal Operation 1. Click the "Restart Router" button. Click "OK" to restart your Router. Restore Factory Defaults Using this option will restore all of the settings in the Router to the factory (default) settings. [. . . ] When connecting an external antenna to the device, the antenna shall be placed in such a manner to minimize the potential for human contact during normal operation. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation. Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. [. . . ]