Reference Manual for the Model DG814 DSL Modem Internet Gateway NETGEAR, Inc.
© 2002 by NETGEAR, Inc. All rights reserved. Trademarks NETGEAR is a trademark of Netgear, Inc. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product names are registered trademarks or trademarks of their respective holders. Statement of Conditions In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice.
Bestätigung des Herstellers/Importeurs Es wird hiermit bestätigt, daß das Model DG814 DSL Modem Internet Gateway gemäß der im BMPT-AmtsblVfg 243/ 1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung.
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Contents Chapter 1 Introduction About the Gateway .........................................................................................................1-1 Key Features ..................................................................................................................1-1 Content Filtering .......................................................................................................1-3 Security .......................................................................................
Configuring Windows 95, 98, and ME for IP Networking ................................................3-2 Install or Verify Windows Networking Components ..................................................3-2 Assign TCP/IP configuration by DHCP ....................................................................3-4 Selecting Internet Access Method ............................................................................3-4 Verifying TCP/IP Properties (Windows) ..............................................
Changing the Configuration Password ...........................................................................5-8 Gateway Upgrade ...........................................................................................................5-9 Chapter 6 Advanced Configuration of the Gateway Configuring for Port Forwarding to Local Servers ..........................................................6-1 Add a Custom Service .......................................................................................
Testing the Path from Your PC to a Remote Device ................................................7-7 Restoring the Default Configuration and Password ........................................................7-8 Using the Default Reset button ................................................................................7-8 Problems with Date and Time .........................................................................................7-8 Appendix A Technical Specifications General Specifications .......
Figure 2-1. DG814 Front Panel ..................................................................................2-2 Figure 2-2. DG814 Rear Panel ...................................................................................2-3 Figure 2-3. Typical installation ....................................................................................2-5 Figure 4-1. Login window ...........................................................................................4-2 Figure 4-2.
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About This Guide Congratulations on your purchase of the NETGEAR™ Model DG814 DSL Modem Internet Gateway. The Model DG814 gateway provides a secure connection for multiple personal computers (PCs) to the Internet through an internal ADSL modem that is normally intended for use by a single PC. Note: If you are unfamiliar with networking and routing, refer to Appendix B, “Networks and Routing Basics”, to become more familiar with the terms and procedures used in this manual.
Reference Manual for the Model DG814 DSL Modem Internet Gateway For more information about IP address translation, refer to RFC 1631, The IP Network Address Translator (NAT).
Reference Manual for the Model DG814 DSL Modem Internet Gateway Typographical Conventions This guide uses the following typographical conventions: italics Book titles and UNIX file, command, and directory names. courier font Screen text, user-typed command-line entries. Initial Caps Menu titles and window and button names. [Enter] Named keys in text are shown enclosed in square brackets. The notation [Enter] is used for the Enter key and the Return key.
Chapter 1 Introduction This chapter describes the features of the NETGEAR Model DG814 DSL Modem Internet Gateway. About the Gateway The Model DG814 DSL Modem Internet Gateway with 4-port switch connects your local area network (LAN) to the Internet using a built-in ADSL modem. The Model DG814 gateway provides you with multiple Web content filtering options, plus browsing activity reporting and instant alerts via e-mail.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • – Blocking can be scheduled by day and time – Network Address Translation (NAT) hides local PCs from the Internet – Incoming port forwarding and DMZ for specific services Built in 4-port 10/100 Mbps Switch – Allows LAN connections at 10 megabits per second (Mbps) or 100 Mbps – Autosensing for Ethernet (10BASE-T) or Fast Ethernet (100BASE-Tx) transmissions – Half-duplex or full-duplex operation • Direct connection to the wide ar
Reference Manual for the Model DG814 DSL Modem Internet Gateway Content Filtering With its content filtering features, the Model DG814 gateway prevents objectionable content from reaching your PCs. Its content filtering features include: • Content filtering by domain or keyword The Model DG814 gateway uses content filtering to enforce your network’s Internet access policies. The gateway allows you to control access to Internet content by screening for keywords within Website names or newsgroup names.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The Model DG814 gateway incorporates Auto UplinkTM technology (also called MDI/MDIX). Each LOCAL Ethernet port will automatically sense whether the Ethernet cable plugged into the port should have a 'normal' connection (e.g. connecting to a PC) or an 'uplink' connection (e.g. connecting to a router, switch, or hub). That port will then configure itself to the correct configuration.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Animated installation assistant The Resource CD contains an animated installation assistant to guide you through set up. • Browser-based management Browser-based configuration allows you to easily configure your gateway from almost any type of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup Wizard is provided and online help documentation is built into the browser-based Web Management Interface.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 1-6 Introduction
Chapter 2 Setting Up the Hardware This chapter describes the Model DG814 DSL Modem Internet Gateway hardware and provides instructions for installing it.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Local Network Hardware Requirements The Model DG814 DSL Modem Internet Gateway is intended for use in a network of personal computers (PCs) that are interconnected by twisted-pair Ethernet cables. PC Requirements To install and run the Model DG814 gateway over your network of PCs, each PC must have an installed Ethernet Network Interface Card (NIC) and an Ethernet cable.
Reference Manual for the Model DG814 DSL Modem Internet Gateway You can use some of the LEDs to verify connections. Table 2-1 lists and describes each LED on the front panel of the Model DG814 gateway. These LEDs are green when lit. Table 2-1. LED Descriptions Label Activity Description Power On Off Power is supplied to the gateway. Power is not supplied to the gateway. Test On Off The system is initializing. The system is ready and running.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The rear panel contains the following features (from left to right): • Power switch • 18 V AC power adapter outlet • Four Local (LAN) Ethernet ports for connecting the gateway to the local PCs • Factory Default Reset push-button • ADSL (WAN) port, with two identical connectors, for connecting the gateway to the ADSL service provider. One of the ports can be connected to a telephone using an external microfilter.
Reference Manual for the Model DG814 DSL Modem Internet Gateway A typical installation is shown in Figure 2-3, below Figure 2-3. Typical installation Connecting to your Local Ethernet Network Your local network (LAN) will attach to the four Local gateway ports shown in Figure 2-2. The Local ports operate at either 10 Mbps (10BASE-T) or 100 Mbps (100BASE-Tx), depending on the Ethernet interface of the attached PC, hub, or switch.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The Model DG814 gateway incorporates a four-port switch for connecting to your local network. To connect the Model DG814 gateway to your LAN: • Connect up to four PCs directly to any of the four Local ports of the gateway using standard Ethernet cables.
Reference Manual for the Model DG814 DSL Modem Internet Gateway ADSL through other wall jacks 1. Plug the “LINE” connection from the included microfilter into the wall jack. 2. Connect the “DSL” jack of the microfilter to the ADSL port of your gateway using the telephone cable provided. 3. Connect the “PHONE” side of the microfilter to your telephone, using your existing telephone cable. A telephone can be attached to the second RJ-11 jack on your gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway All LEDs will briefly be tested. 2. 3. After approximately 10 seconds, verify that: • The Test LED is not lit. • The Local port LEDs are lit for any local ports that are connected. If a port’s LED is lit, a link has been established to the connected device. If a Local port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is 10 Mbps, the LED should be yellow.
Chapter 3 Preparing Your Network This chapter describes how to prepare your PC network to connect to the Internet through the Model DG814 DSL Modem Internet Gateway and how to order broadband Internet service from an Internet service provider (ISP). Note: If an ISP technician configured your PC during the installation of a broadband modem, or if you configured it using instructions provided by your ISP, you may need to copy the current configuration information for use in the configuration of your gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Macintosh Operating System 7 or later includes the software components for establishing a TCP/IP network. • All versions of UNIX or Linux include TCP/IP components. Follow the instructions provided with your operating system or networking software to install TCP/IP on your computer. In your IP network, each PC and the gateway must be assigned a unique IP addresses.
Reference Manual for the Model DG814 DSL Modem Internet Gateway You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks. Note: It is not necessary to remove any other network components shown in the Network window in order to install the adapter, TCP/IP, or Client for Microsoft Networks. If you need the adapter: a. Click the Add button. b. Select Adapter, and then click Add. c. Select the manufacturer and model of your Ethernet adapter, and then click OK.
Reference Manual for the Model DG814 DSL Modem Internet Gateway If you need Client for Microsoft Networks: 3. a. Click the Add button. b. Select Client, and then click Add. c. Select Microsoft. d. Select Client for Microsoft Networks, and then click OK. Restart your PC for the changes to take effect. Assign TCP/IP configuration by DHCP After the TCP/IP protocol components are installed, each PC must be assigned specific information about itself and resources that are available on its network.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4. Select “I want to connect through a Local Area Network” and click Next. 5. Uncheck all boxes in the LAN Internet Configuration screen and click Next. 6. Proceed to the end of the Wizard. Verifying TCP/IP Properties (Windows) After your PC is configured and has rebooted, you can check the TCP/IP configuration using the utility winipcfg.exe: 1. On the Windows taskbar, click the Start button, and then click Run. 2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4. Select Properties. 5. Verify that ‘Client for Microsoft Networks’ and ‘Internet Protocol (TCP/IP)’ are present. If not, select Install and add them. 6. Select ‘Internet Protocol (TCP/IP)’, click Properties, and verify that “Obtain an IP address automatically is selected. 7. Click OK and close all Network and Dialup Connections windows. 8. Make sure your PC is connected to the gateway, then reboot your PC.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The TCP/IP Control Panel opens: 2. From the “Connect via” box, select your Macintosh’s Ethernet interface. 3. From the “Configure” box, select Using DHCP Server. You can leave the DHCP Client ID box empty. 4. Close the TCP/IP Control Panel. 5. Repeat this for each Macintosh on your network. MacOS X 1. From the Apple menu, choose System Preferences, then Network. 2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Verifying TCP/IP Properties (Macintosh) After your Macintosh is configured and has rebooted, you can check the TCP/IP configuration by returning to the TCP/IP Control Panel. From the Apple menu, select Control Panels, then TCP/IP. The panel is updated to show your settings, which should match the values below if you are using the default TCP/IP settings that NETGEAR recommends: • The IP Address is between 192.168.0.2 and 192.168.0.
Reference Manual for the Model DG814 DSL Modem Internet Gateway For a single-user Internet account, your ISP supplies TCP/IP configuration information (such as IP address, subnet mask and default gateway) and VPI and VCI multiplexing information for one PC. Your ISP may also provide other login information, such as User Name and Password, in the case where the PPPoE or PPPoA protocol is required.
Reference Manual for the Model DG814 DSL Modem Internet Gateway If any of these items are dynamically supplied by the ISP, your gateway automatically acquires them. If an ISP technician configured your PC during the installation of the broadband modem, or if you configured it using instructions provided by your ISP, you need to copy configuration information from your PC’s Network TCP/IP Properties window (or Macintosh TCP/IP Control Panel) before reconfiguring your PC for use with the gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Obtaining ISP Configuration Information (Macintosh) As mentioned above, you may need to collect configuration information from your Macintosh so that you can use this information when you configure the Model DG814 gateway. Following this procedure is only necessary when your ISP does not dynamically supply the account information. To get the information you need to configure the gateway for Internet access: 1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 3-12 Preparing Your Network
Chapter 4 Basic Configuration of the Gateway This chapter describes how to perform the basic configuration of your Model DG814 DSL Modem Internet Gateway using the Setup Wizard, which walks you through the configuration process for your Internet connection. Accessing the Web Configuration Manager In order to use the browser-based Web Configuration Manager, your PC must have a web browser program installed such as Microsoft Internet Explorer or Netscape Navigator.
Reference Manual for the Model DG814 DSL Modem Internet Gateway A login window opens as shown in Figure 4-1 below:. Figure 4-1. Login window This screen may have a different appearance in other browsers. 6. Type admin in the User Name box, password in the Password box, and then click OK. If your gateway password was previously changed, enter the current password. If your gateway has not yet been configured, the Setup Wizard should launch automatically.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Figure 4-2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway You can manually configure your gateway using this menu as described in “Manual Configuration“ on page 4-10, or you can allow the Setup Wizard to determine your configuration as described in the following chapter. Configuration using the Setup Wizard The Web Configuration Manager contains a Setup Wizard that can automatically determine your network connection type.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The Setup Wizard will report which connection type it has discovered, and it will then use the appropriate configuration menu for that connection type. Configuring for Dynamic IP Account If the Setup Wizard determines that your Internet service account uses Dynamic IP assignment, you will be directed to the menu shown in Figure 4-3 below. Figure 4-3. 1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 2. Domain Name Server (DNS) Address: If you know that your ISP does not automatically transmit DNS addresses to the gateway during login, select “Use these DNS servers” and enter the IP address of your ISP’s Primary DNS Server. If a Secondary DNS Server address is available, enter it also. A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Configuring for Fixed IP Account If the Setup Wizard determines that your Internet service account uses Fixed IP assignment, you will be directed to the menu shown in Figure 4-4 below: Figure 4-4. Setup Wizard menu for Fixed IP address 1. Enter your assigned IP Address, Subnet Mask, and the IP Address of your ISP’s gateway router. This information should have been provided to you by your ISP. 2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP transfers the IP addresses of one or two DNS servers to your gateway during login. If the ISP does not transfer an address, you must obtain it from the ISP and enter it manually here. If you enter an address here, you should reboot your PCs after configuring the gateway. 3.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Configuring for an Account with Login If the Setup Wizard determines that your Internet service account uses a login protocol such as PPP over Ethernet (PPPoE) or PPP over ATM (PPPoA), you will be directed to a menu like the PPPoE menu shown in Figure 4-5 below. Figure 4-5. Setup Wizard menu for PPPoE login accounts 1. Enter your Account Name (may also be called Host Name) and Domain Name.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Note: You will no longer need to launch the ISP’s login program on your PC in order to access the Internet. When you start an Internet application, your gateway will automatically log you in. 3. Domain Name Server (DNS) Address: If you know that your ISP does not automatically transmit DNS addresses to the gateway during login, select “Use these DNS servers” and enter the IP address of your ISP’s Primary DNS Server.
Reference Manual for the Model DG814 DSL Modem Internet Gateway c. If you wish to change the idle timeout, enter a new value in minutes. Entering “0” will disable the Idle Timeout function. Proceed to Step 2 Note: You will no longer need to launch the ISP’s login program on your PC in order to access the Internet. When you start an Internet application, your gateway will automatically log you in.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4. Gateway’s MAC Address: This section determines the Ethernet MAC address that will be used by the gateway on the Internet port. Some ISPs will register the Ethernet MAC address of the network interface card in your PC when your account is first opened. They will then only accept traffic from the MAC address of that PC. This feature allows your gateway to masquerade as that PC by “cloning” its MAC address.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Your gateway is now configured to provide Internet access for your network. When your gateway and PCs are configured correctly, your gateway automatically accesses the Internet when one of your LAN devices requires access. It is not necessary to run a dialer or login application such as Dial-Up Networking or Enternet to connect, log in, or disconnect. These functions are performed by the gateway as needed.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4-14 Basic Configuration of the Gateway
Chapter 5 Maintenance This chapter describes how to use the maintenance features of your Model DG814 DSL Modem Internet Gateway. These features can be found by clicking on the Maintenance heading in the Main Menu of the browser interface. Gateway Status The Gateway Status menu provides a limited amount of status and usage information. From the Main Menu of the browser interface, click on Maintenance, then select System Status to view the System Status screen, shown in Figure 5-1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Figure 5-1. Gateway Status screen This screen shows the following parameters: Table 5-1. Gateway Status Fields Field Description System Name This field displays the Host Name assigned to the gateway. Firmware Version This field displays the gateway firmware version. WAN Port These IP parameters apply to the ADSL (WAN) port of the gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Table 5-1. Gateway Status Fields Field DHCP LAN Port Description If set to None, the gateway is configured to use a fixed IP address on the WAN. If set to Client, the gateway is configured to obtain an IP address dynamically from the ISP. These IP parameters apply to the Local (WAN) port of the gateway. IP Address This field displays the IP address being used by the Local (LAN) port of the gateway. The default is 192.168.0.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Click on the “Show Statistics” button to display gateway usage statistics, as shown in Figure 5-2 below: Figure 5-2. Gateway Statistics screen This screen shows the following statistics:. Table 5-2. Gateway Statistics Fields Field Description Port The statistics for the ADSL (Internet) and LAN (local) ports. For each port, the screen displays: Status The link status of the port.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Click the “PPPoE Status” or “PPPoA Status” button to display the progress of the PPPoE or PPPoA connection, as shown in Figure 5-3, below. Figure 5-3. PPPoE Status screen The gateway will automatically authenticate with the PPPoE or PPPoA network when you have data to transmit. You can manually connect to the network by clicking on the Connect button. This screen gives you more detailed information about your PPPoE or PPPoA link.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Click the “Ping Status” button to perform a connectivity test from your gateway, as shown in Figure 5-4 below. Figure 5-4. Ping Status screen This screen allows you to “ping” an IP address on the LAN to verify connectivity. Enter the IP address and click the “PING” button to perform the test. Attached Devices The Attached Devices menu contains a table of all IP devices that the gateway has discovered on the local network.
Reference Manual for the Model DG814 DSL Modem Internet Gateway For each device, the table shows the IP address, NetBIOS Host Name (if available), and Ethernet MAC address. Note that if the gateway is rebooted, the table data is lost until the gateway rediscovers the devices. To force the gateway to look for attached devices, click the Refresh button. Configuration File Settings Management The configuration settings of the Model DG814 gateway are stored within the gateway in a configuration file.
Reference Manual for the Model DG814 DSL Modem Internet Gateway To restore your settings from a saved configuration file, enter the full path to the file on your PC or click the Browse button to browse to the file. When you have located it, click the Restore button to send the file to the gateway. The gateway will then reboot automatically. Erase the Configuration It is sometimes desirable to restore the gateway to a known blank condition.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Gateway Upgrade The routing software of the Model DG814 gateway is stored in FLASH memory, and can be upgraded as new software is released by NETGEAR. Upgrade files can be downloaded from Netgear's website. If the upgrade file is compressed (.ZIP file), you must first extract the binary (.BIN) file before sending it to the gateway. The upgrade file can be sent to the gateway using your browser.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 5-10 Maintenance
Chapter 6 Advanced Configuration of the Gateway This chapter describes how to configure the advanced features of your Model DG814 DSL Modem Internet Gateway. These features can be found under the Advanced heading in the Main Menu of the browser interface.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Note: Some residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to the Acceptable Use Policy of your ISP. Note: Port Forwarding settings will not work when NAT is disabled in NAT Status.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 5. Type a name for the service. 6. Click Apply at the bottom of the menu. Edit or Delete a Port Forwarding Entry To edit or delete a Port Forwarding entry, follow these steps. 1. In the table, select the button next to the service name. 2. Click Edit or Delete. Local Web and FTP Server Example If a local PC with a private IP address of 192.168.0.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 3. Change the beginning port number in the Start Port box. For these games, use the supplied number in the default listing and add +1 for each additional computer. For example, if you've already configured one computer to play Hexen II (using port 26900), the second computer's port number would be 26901, and the third computer would be 26902. 4. Type the same port number in the End Port box that you typed in the Start Port box. 5.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Security DMZ Server Incoming traffic from the Internet is normally discarded by the gateway unless the traffic is a response to one of your local computers or a service that you have configured in the Port Forwarding menu. Instead of discarding this traffic, you can have it forwarded to one computer on your network. This computer is called the Default DMZ Server.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Respond to Ping on Internet WAN Port If you want the gateway to respond to a 'ping' from the Internet, click the ‘Respond to Ping on Internet WAN Port’ check box. This should only be used as a diagnostic tool, since it allows your gateway to be discovered. Don't check this box unless you have a specific reason to do so.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 8. Click Apply to save your configuration. Note: If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the dynamic DNS service will not work because private addresses will not be routed on the Internet. LAN IP Setup The LAN IP Setup menu allows configuration of LAN IP services such as DHCP and RIP.
Reference Manual for the Model DG814 DSL Modem Internet Gateway DHCP By default, the gateway will function as a DHCP (Dynamic Host Configuration Protocol) server, allowing it to assign IP, DNS server, and default gateway addresses to all computers connected to the gateway's LAN. The assigned default gateway address is the LAN address of the gateway. IP addresses will be assigned to the attached PCs from a pool of addresses specified in this menu.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • IP Subnet Mask This is the LAN Subnet Mask of the gateway. Combined with the IP address, the IP Subnet Mask allows a device to know which other addresses are local to it, and which must be reached through a gateway or router. • RIP Direction RIP (Router Information Protocol) allows a router to exchange routing information with other routers. The RIP Direction selection controls how the gateway sends and receives RIP packets.
Reference Manual for the Model DG814 DSL Modem Internet Gateway From the Main Menu of the browser interface, under Advanced, click on Remote Management to view the Remote Management menu, shown in Figure 6-4. Figure 6-4. Remote Management menu. 1. Select the Allow Remote Management check box. 2. Specify what external addresses will be allowed to access the gateway’s remote management. For security, NETGEAR recommends that you restrict access to as few external IP addresses as practical. 3. a.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Web browser access normally uses the standard HTTP service port 80. For greater security, you can change the remote management web interface to a custom port by entering that number in the box provided. Choose a number between 1024 and 65535, but do not use the number of any common service port. The default is 8080, which is a common alternate for HTTP. 4. Click Apply to have your changes take effect.
Reference Manual for the Model DG814 DSL Modem Internet Gateway From the Main Menu of the browser interface, under Advanced, click on Static Route to view the Static Route menu, shown in Figure 6-5. Figure 6-5. Static Route Summary Table To add or edit a Static Route: 1. Select a number and click the Edit button to open the Edit Menu, shown in Figure 6-6. Figure 6-6. Static Route Entry and Edit Menu 2. Type a route name for this static route in the Route Name box under the table.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 6. Type the IP Subnet Mask for this destination. If the destination is a single host, type 255.255.255.255. 7. Type the Gateway IP Address, which must be a router on the same LAN segment as the gateway. 8. Type a number between 1 and 15 as the Metric value. This represents the number of routers between your network and the destination. Usually, a setting of 2 or 3 works, but if this is a direct connection, set it to 1. 9.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 6-14 Advanced Configuration of the Gateway
Chapter 7 Troubleshooting This chapter gives information about troubleshooting your Model DG814 DSL Modem Internet Gateway. After each problem description, instructions are provided to help you diagnose and solve the problem. Basic Functioning After you turn on power to the gateway, the following sequence of events should occur: 1. When power is first applied, verify that the Power LED 2. Verify that the Test LED procedure is running. 3. After approximately 10 seconds, verify that: is on.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Check that you are using the 18 V AC power adapter supplied by NETGEAR for this product. If the error persists, you have a hardware problem and should contact technical support. Test LED Never Blinks or LED Stays On When the gateway is turned on, the Test LED turns on for about 10 seconds and then turns off. If the Test LED does not turn on, or if it stays on, there is a fault within the gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • If your gateway’s IP address has been changed and you don’t know the current IP address, clear the gateway’s configuration to factory defaults. This will set the gateway’s IP address to 192.168.0.1. This procedure is explained in “Erase the Configuration“ on page 5-8. • Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet Explorer, click Refresh to be sure the Java applet is loaded.
Reference Manual for the Model DG814 DSL Modem Internet Gateway If the WAN LED does not turn green, disconnect all telephones on the line. If this solves the problem, reconnect the telephones one at a time, being careful to use a microfilter on each telephone. If the microfilters are connected correctly, you should be able to connect all your telephones. If disconnecting telephones does not result in a green WAN LED there may be a problem with your wiring.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Your ISP may require a login program. Ask your ISP whether they require PPP over Ethernet (PPPoE) or PPP over ATM (PPPOA) login. • If you have selected a login program, you may have incorrectly set the Service Name, User Name and Password. See “Troubleshooting PPPoE or PPPoA”, below. • Your ISP may check for your PC's host name. Assign the PC Host Name of your ISP account to the gateway in the browser-based Setup Wizard.
Reference Manual for the Model DG814 DSL Modem Internet Gateway A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use. If you entered a DNS address during the gateway’s configuration, reboot your PC and verify the DNS address as described in “Verifying TCP/IP Properties (Windows)“ on page 3-5.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Wrong physical connections — Make sure the LAN LNK/ACT LED is on. If the LNK/ACT LED is off, follow the instructions in “Troubleshooting the Web Configuration Interface” on page 7-2. — Check that the corresponding Link LEDs are on for your network interface card and for the hub ports (if any) that are connected to your workstation and gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Restoring the Default Configuration and Password This section explains how to restore the factory default configuration settings, changing the gateway’s administration password to password and the IP address to 192.168.0.1. You can erase the current configuration and restore factory defaults in two ways: • Use the Erase function of the Web Configuration Manager (see “Erase the Configuration“ on page 5-8).
Appendix A Technical Specifications This appendix provides technical specifications for the Model DG814 DSL Modem Internet Gateway.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Japan: 100V, 50/60 Hz, input All regions (output): 18 V AC @ 0.4A output, 30W maximum Physical Specifications Dimensions: 255 by 169 by 34 mm 10.0 by 6.7 by 1.3 in. Weight: 0.54 kg 1.2 lb.
Appendix B Networks and Routing Basics This chapter provides an overview of IP networks, routing, and firewalls. Basic Router Concepts Large amounts of bandwidth can be provided easily and relatively inexpensively in a local area network (LAN). However, providing high bandwidth between a local network and the Internet can be very expensive. Because of this expense, Internet access is usually provided by a slower-speed wide-area network (WAN) link such as a cable or DSL modem.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Routing Information Protocol One of the protocols used by a router to build and maintain a picture of the network is the Routing Information Protocol (RIP). Using RIP, routers periodically update one another and check for changes to add to the routing table. The Model DG814 gateway supports both the older RIP-1 and the newer RIP-2 protocols. Among other improvements, RIP-2 supports subnet and multicast protocols.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Class A Network Node Class B Network Node Class C Network Node 7261 Figure B-1. Three Main Address Classes The five address classes are: • Class A Class A addresses can have up to 16,777,214 hosts on a single network. They use an eight-bit network number and a 24-bit node number. Class A addresses are in this range: 1.x.x.x to 126.x.x.x. • Class B Class B addresses can have up to 65,354 hosts on a network.
Reference Manual for the Model DG814 DSL Modem Internet Gateway This addressing structure allows IP addresses to uniquely identify each physical network and each node on each physical network. For each unique value of the network portion of the address, the base address of the range (host address of all zeros) is known as the network address and is not usually assigned to a host.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Subnet addressing allows us to split one IP network address into smaller multiple physical networks known as subnetworks. Some of the node numbers are used as a subnet number instead. A Class B address gives us 16 bits of node numbers translating to 64,000 nodes. Most organizations do not use 64,000 nodes, so there are free bits that can be reassigned. Subnet addressing makes use of those bits that are free, as shown below.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The following table lists the additional subnet mask bits in dotted-decimal notation. To use the table, write down the original class netmask and replace the 0 value octets with the dotted-decimal value of the additional subnet bits. For example, to partition your Class C network with subnet mask 255.255.255.0 into 16 subnets (4 bits), the new subnet mask becomes 255.255.255.240. Table B-1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway NETGEAR strongly recommends that you configure all hosts on a LAN segment to use the same netmask for the following reasons: • So that hosts recognize local IP broadcast packets When a device broadcasts to its segment neighbors, it uses a destination address of the local network address with all ones for the host address. In order for this scheme to work, all devices on the segment must agree on which bits comprise the host address.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The router accomplishes this address sharing by translating the internal LAN IP addresses to a single address that is globally unique on the Internet. The internal LAN IP addresses can be either private addresses or registered addresses. For more information about IP address translation, refer to RFC 1631, The IP Network Address Translator (NAT). The following figure illustrates a single IP address operation.
Reference Manual for the Model DG814 DSL Modem Internet Gateway MAC Addresses and Address Resolution Protocol An IP address alone cannot be used to deliver data from one LAN device to another. To send data between LAN devices, you must convert the IP address of the destination device to its media access control (MAC) address. Each device on an Ethernet network has a unique MAC address, which is a 48-bit number assigned to each device by the manufacturer.
Reference Manual for the Model DG814 DSL Modem Internet Gateway IP Configuration by DHCP When an IP-based local area network is installed, each PC must be configured with an IP address. If the PCs need to access the Internet, they should also be configured with a gateway address and one or more DNS server addresses. As an alternative to manual configuration, there is a method by which each PC on the network can automatically obtain this configuration information.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Ethernet Cabling Although Ethernet networks originally used thick or thin coaxial cable, most installations currently use unshielded twisted pair (UTP) cabling. The UTP cable contains eight conductors, arranged in four twisted pairs, and terminated with an RJ45 type connector. A normal "straight-through" UTP Ethernet cable follows the EIA568B standard wiring and pinout as described in Table B-3. Table B-3.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Crossover cable A crossover cable is a special cable in which the transmit and receive pairs are exchanged at one of the two cable connectors. Crossover cables are often unmarked as such, and must be identified by comparing the two connectors. Since the cable connectors are clear plastic, it is easy to place them side by side and view the order of the wire colors on each.
Glossary 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over twisted pair wiring. 100BASE-Tx IEEE 802.3 specification for 100 Mbps Ethernet over twisted pair wiring. ADSL See Asymmetric Digital Subscriber Line Asymmetric Digital Subscriber Line A technology for sending data over regular telephone lines. ADSL allows data rates up to 8 Mbps downstream and 640 Kbps upstream. Denial of Service attack A hacker attack designed to prevent your computer or network from operating or communicating.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 2 IP Address A four-byte number uniquely defining each host on the Internet. Ranges of addresses are assigned by Internic, an organization formed for this purpose. Usually written in dotted-decimal notation with periods separating the bytes (for example, 134.177.244.57). IPSec Internet Protocol Security. IPSec is a series of guidelines for securing private information transmitted over public networks.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Netmask A number that explains which part of an IP address comprises the network address and which part is the host address on that network. It can be expressed in dotted-decimal notation or as a number appended to the IP address. For example, a 28-bit mask starting from the MSB can be shown as 255.255.255.192 or as /28 appended to the IP address.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4 Routing Information Protocol A protocol in which routers periodically exchange information with one another so that they can determine minimum distance paths between sources and destinations. Subnet Mask See netmask. UTP Unshielded twisted pair. The cable used by 10BASE-T and 100BASE-Tx Ethernet networks. VCI Virtual Channel Identifier. Together with the VPI, defines a Virtual Channel through an ATM network.
Index A D Account Name 4-5, 4-9, 4-10 date and time 7-8 Address Resolution Protocol B-9 daylight savings time 7-8 ADSL connecting through other jacks 2-7 connecting through RJ11 2-6 default reset button 7-8 ARP B-9 Auto MDI/MDI-X 1-4, 2-6, B-11, B-12 Auto Uplink 1-4, 2-6 B backup configuration 5-7 C DHCP 1-2, 1-4, 3-2, 6-8, B-10 DHCP Client ID 3-7 DHCP Setup field, Ethernet Setup menu 5-2 DMZ 1-3, 6-2, 6-5 DNS Proxy 1-2, 1-4 DNS server 3-10, 3-11, 4-6, 4-7, 4-10, 4-11 DNS, dynamic 6-6 domain 3-1
G M gateway address 3-10, 3-11 MAC address B-9 spoofing 4-6, 4-8, 4-12 H Macintosh 3-10 configuring for IP networking 3-6 DHCP Client ID 3-7 Obtaining ISP Configuration Information 3-11 OS 8.6 or 9.
login 3-9 Status 5-5 PPP over Ethernet 1-2, 1-4, 3-9, 4-9, 4-10, 5-5 login 3-9 Status 5-5 S Secondary DNS Server 4-6, 4-7, 4-10, 4-11 security 1-1, 1-3 Service Name 4-10 PPPoA.
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