Delta Electronics E804WAG Dual-Band Wireless A+G Router User Manual P74743 F6D3230 4 AG man 12 04 indd

Delta Networks, Inc. Dual-Band Wireless A+G Router P74743 F6D3230 4 AG man 12 04 indd

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56Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User InterfaceConfiguring the FirewallYour Router is equipped with a firewall that will protect your network from a wide array of common hacker attacks including:• IP Spoofing• SYN flood• Land Attack• UDP flooding• Ping of Death (PoD)• Tear Drop Attack• Denial of Service (DoS) • ICMP defect• IP with zero length • RIP defect• Smurf Attack• Fragment flooding• TCP Null ScanThe firewall also masks common ports that are frequently used to attack networks. These ports appear to be “stealth”, meaning that for all intents and purposes, they do not exist to a would-be hacker. You can turn the firewall function off if needed; however, it is recommended that you leave the firewall enabled. Disabling the firewall protection will not leave your network completely vulnerable to hacker attacks, but it is recommended that you leave the firewall enabled.

Using the Web-Based Advanced User Interface57section123456789Configuring Internal Forwarding SettingsThe Virtual Servers function will 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, computers outside your network (over the Internet) cannot get to them because they cannot be “seen”. A list of common applications has been provided in case you need to configure the Virtual Server function for a specific application. If your application is not listed, you will need to contact the application vendor to find out which port settings you need.Choosing an ApplicationSelect your application from the drop-down list. Click “Add”. The settings will be transferred to the next available space in the screen. Click “Apply Changes” to save the setting for that application. To remove an application, select the number of the row that you want to remove then click “Clear”.Manually Entering Settings into the Virtual ServerTo manually enter settings, enter the IP address in the space provided for the internal (server) machine, the port(s) required to pass (use a comma between multiple ports), and then select the port type (TCP or UDP) and click “Apply Changes”. You can only pass one port per internal IP address. Opening ports in your firewall can pose a security risk. You can enable and disable settings very quickly. It is recommended that you disable the settings when you are not using a specific application.

58Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User InterfaceSetting Client IP FiltersThe Router can be configured to restrict access to the Internet, email, or other network services at specific days and times. Restriction can be set for a single computer, a range of computers, or multiple computers. To restrict Internet access to a single computer, for example, enter the IP address of the computer you wish to restrict access to in the IP fields (1). Next, enter “80” in both the port fields (2). Select “Both” (3). Select “Block” (4). You can also select “Always” to block access all of the time. Select the day to start on top (5), the time to start on top (6), the day to end on the bottom (7), and the time to stop (8) on the bottom. Select “Enable” (9). Click “Apply Changes”. The computer at the IP address you specified will now be blocked from Internet access at the times you specified. Note: Be sure you have selected the correct time zone under “Utilities> System Settings> Time Zone”.(1)(2)(3)(4)(7)(8)(9)(5)(6)

Using the Web-Based Advanced User Interface59section123456789Enabling the Demilitarized Zone (DMZ)The DMZ feature allows you to specify one computer on your network to be placed outside of the firewall. This may be necessary if the firewall is causing problems with an application such as a game or video conferencing application. Use this feature on a temporary basis. The computer in the DMZ is NOT protected from hacker attacks.To put a computer in the DMZ, enter the last digits of its IP address in the IP field and select “Enable”. Click “Apply Changes” for the change to take effect. If you are using multiple static WAN IP addresses, it is possible to select which WAN IP address the DMZ host will be directed to. Type in the 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, select “Enable” and click “Apply Changes”.Blocking an ICMP PingComputer hackers use what is known as “pinging” to find potential victims on the Internet. By pinging a specific IP address and receiving a response from the IP address, a hacker can determine that something of interest might be there. The Router can be set up so it will not respond to an ICMP ping from the outside. This heightens your Router’s security level.To turn off the ping response, select “Block ICMP Ping” (1)and click “Apply Changes”. The Router will not respond to an ICMP ping.(1)

60Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User InterfaceUtilitiesThe “Utilities” screen lets you manage different parameters of the Router and perform certain administrative functions.Parental ControlSee the included Parental Control User Manual for more information on the Parental Control feature.Restarting the RouterSometimes 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.Restarting the Router to Restore Normal Operation1. Click the “Restart Router” button.2. The following message will appear. Click “OK”.3. The following message will appear. Restarting the Router can take up to 60 seconds. It is important not to turn off the power to the Router during the restart.4. A 60-second countdown will appear on the screen. When the countdown reaches zero, the Router will be restarted. The Router home page should appear automatically. If not, type in the Router’s address (default = 192.168.2.1) into the navigation bar of your browser.

Using the Web-Based Advanced User Interface61section123456789Restoring Factory Default SettingsUsing this option will restore all of the settings in the Router to the factory (default) settings. It is recommended that you back up your settings before you restore all of the defaults.1. Click the “Restore Defaults” button.2. The following message will appear. Click “OK”.3. The following message will appear. Restoring the defaults includes restarting the Router. It can take up to 60 seconds. It is important not to turn the power to the Router off during the restart.4. A 60-second countdown will appear on the screen. When the countdown reaches zero, the Router’s defaults will be restored. The Router home page should appear automatically. If it does not, type in the Router’s address (default = 192.168.2.1) into the navigation bar of your browser.

62Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User InterfaceSaving a Current ConfigurationYou can save your current configuration by using this feature. Saving your configuration will allow you to restore it later if your settings are lost or changed. It is recommended that you back up your current configuration before performing a firmware update.1. Click “Save”. A window called “File Download” will open. Click “Save”.2. A window will open that allows you to select the location where you want to save the configuration file. Select a location. You can name the file anything you want, or use the default name “Config”. Be sure to name the file so you can locate it yourself later. When you have selected the location and name of the file, click “Save”.

Using the Web-Based Advanced User Interface63section1234567893. When the save is complete, you will see the following window. Click “Close”. The configuration is now saved.Restoring a Previous ConfigurationThis option will allow you to restore a previously saved configuration.1. Click “Browse”. A window will open that allows you to select the location of the configuration file. All configuration files end with a “.bin”. Locate the configuration file you want to restore and double-click on it.

64Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User Interface2. You will be asked if you want to continue. Click “OK”.3. A reminder window will appear. It will take up to 60 seconds for the configuration restoration to complete. Click “OK”.4. A 60-second countdown will appear on the screen. When the countdown reaches zero, the Router’s configuration will be restored. The Router home page should appear automatically. If not, type in the Router’s address (default = 192.168.2.1) into the navigation bar of your browser.

Using the Web-Based Advanced User Interface65section123456789Updating the FirmwareFrom time to time, Belkin may release new versions of the Router’s firmware. Firmware updates contain feature improvements and fixes to problems that may exist. When Belkin releases new firmware, you can download the firmware from the Belkin update website and update your Router’s firmware to the latest version.Checking for a New Version of FirmwareThe “Check Firmware” (1) button allows you to instantly check for a new version of firmware. When you click the button, a new browser window will appear informing you that either no new firmware is available or that there is a new version available. If a new version is available, you will have the option to download it.(1)

66Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User InterfaceDownloading a New Version of FirmwareIf you click the “Check Firmware” button and a new version of firmware is available, you will see a screen similar to the one below.1. To download the new version of firmware, click “Download”.2. A window will open that allows you to select the location where you want to save the firmware file. Select a location. You can name the file anything you want, or use the default name. Be sure to save the file in a place where you can locate it yourself later. Note: We suggest saving this to your desktop to locate the file easily. When you have selected the location, click “Save”.

Using the Web-Based Advanced User Interface67section123456789Updating the Router’s Firmware1. In the “Firmware Update” page, click “Browse” (2). A window will open that allows you to select the location of the firmware update file. 2. Browse to the firmware file you downloaded. Select the file by double-clicking on the file name. 3. When the save is complete, you will see the following window. Click “Close”.The download of the firmware is complete. To update the firmware, follow the next steps in “Updating the Router’s Firmware”.

68Using the Web-Based Advanced User InterfaceUsing the Web-Based Advanced User Interface3. The “Update Firmware” box will now display the location and name of the firmware file you just selected. Click “Update”.4. You will be asked if you are sure you want to continue. Click “OK”.5. You will see one more message. This message tells you that the Router may not respond for as long as one minute as the firmware is loaded into the Router and the Router is rebooted. Click “OK”.6. A 60-second countdown will appear on the screen. When the countdown reaches zero, the Router firmware update will be complete. The Router home page should appear automatically. If not, type in the Router’s address (default = 192.168.2.1) into the navigation bar of your browser.