Reference Manual for the Model DG814 DSL Modem Internet Gateway NETGEAR, Inc.
© 2002 by NETGEAR, Inc. All rights reserved. Trademarks NETGEAR and FirstGear are trademarks 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 About This Guide Technical Support ............................................................................................................xiii Related Publications ........................................................................................................xiii Typographical Conventions ............................................................................................. xv Special Message Formats .............................................................................
Verifying Power ........................................................................................................2-7 Chapter 3 Preparing Your Network Preparing Your Personal Computers for IP Networking .................................................3-1 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 .......
Dynamic DNS ...........................................................................................................5-2 Password .................................................................................................................5-2 LAN Setup ......................................................................................................................5-3 DHCP .......................................................................................................................
Testing the Path from Your PC to a Remote Device ................................................7-7 Problems with Date and Time .........................................................................................7-8 Appendix A Technical Specifications General Specifications ................................................................................................... A-1 Appendix B Networks and Routing Basics Basic Router Concepts ..................................................................
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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Table 2-1. LED Descriptions .....................................................................................2-3 Table 4-1. Content Filter Log entry descriptions ..................................................... 4-11 Table 4-2. Log display buttons ................................................................................4-12 Table 5-1. Dynamic DNS configuration fields ...........................................................5-2 Table 5-2. DHCP Setup Fields ..........................
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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 and discusses planning considerations for installation. About the Router 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 • 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 – Autosensing MDI/MDIX configures each port for normal or uplink connection – Half-duplex or full-duplex operation • Direct connection to the wide area network (WAN) using the built-in ADSL modem • Protocol Support • – IP routing – Dynamic e
Reference Manual for the Model DG814 DSL Modem Internet Gateway • PCs Hidden by NAT Network address translation (NAT) opens a temporary path to the Internet for requests originating from the local network. Requests originating from outside the LAN are discarded, preventing users outside the LAN from finding and directly accessing the PCs on the LAN.
Reference Manual for the Model DG814 DSL Modem Internet Gateway TCP/IP The Model DG814 gateway supports the Transmission Control Protocol/Internet Protocol (TCP/ IP) and Routing Information Protocol (RIP). For further information about TCP/IP, refer to Appendix B, “Networks and Routing Basics.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Visual monitoring The Model DG814 gateway’s front panel LEDs provide an easy way to monitor its status and activity.
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 router. Power is not supplied to the router. 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 router to the local PCs • Factory Default Reset push-button • ADSL (WAN) port, with two identical connectors, for connecting the router 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 router 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 router 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 router 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 router.
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 PCs and the gateway must be assigned 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: 1. Click the Add button. 2. Select Adapter, and then click Add. 3. 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: 5. 1. Click the Add button. 2. Select Client, and then click Add. 3. Select Microsoft. 4. 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 router, then reboot your PC.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Mac OS 7, 8.6 or 9.x 1. From the Apple menu, choose Control Panels, and then chooseTCP/IP. The TCP/IP control panel opens: 2. If not already selected, select Ethernet in the “Connect via” list. 3. Select Using DHCP Server in the “Configure” list. 4. Click the Close box 5. Click Save. 6. Repeat this for each Macintosh on your network. Mac OS X 1. Choose System Preferences from the Apple menu. 2. Double-click Network. 3.
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, choose 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 In this example, the domain suffix is xxx.yyy.com. If any of these items are dynamically supplied by the ISP, your gateway automatically acquires them.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 9. Reboot your PC at the prompt. You may also be prompted to insert your Windows CD. 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.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 3-12 Preparing Your Network
Chapter 4 Basic Configuration of the Router 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. Configuring for Internet Access 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. 5. 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. 6. In the opening screen, shown in Figure 4-2, select WIZARD SETUP. Figure 4-2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 7. In the first Wizard screen, enter your account’s System Name and Domain Name, as shown in Figure 4-3 below: Figure 4-3. Browser-based Setup Wizard, first screen These parameters may be necessary to access your ISP’s services such as mail or news servers. If your ISP does not provide a System or Host name leave this field blank.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Your ISP will indicate whether your Multiplexing Method is VC-BASED or LLC-BASED and which VPI and VCI is used. Enter the information in this screen. The most common Multiplexing Method is LLC-based. If your service provider does not indicate which one is used, use LLC-BASED. 9. Click Next to go to the second ISP Parameters screen, shown in Figure 4-5 below: Figure 4-5.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 2. • If you wish to change the login timeout, enter a new value in minutes. If your service provider uses Classical IP, select Classical IP. It is not necessary to enter a Service Type, User Name, or Password. Proceed to Step 3.. Note: PPPoE and PPPoA will authenticate with the network when you have data to transmit.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 5. Click the NETGEAR website address to test your Internet connection. If the NETGEAR website does not appear within one minute, refer to Chapter 7, “Troubleshooting”. Your gateway is now configured to provide Internet access for your network. When your router and PCs are configured correctly, your router automatically accesses the Internet when one of your LAN devices requires access.
Reference Manual for the Model DG814 DSL Modem Internet Gateway E-Mail In order to receive logs and alerts by e-mail, you must provide your e-mail information in the E-Mail tab, shown below • Turn E-mail Notification On Check this box to enable the e-mail notification feature. • Mail Server Specifies the name of your outgoing (SMTP) mail server. You can enter either the server name (such as mail.myISP.com) or its IP Address. • E-mail To Specifies the e-mail address to which logs and alerts are sent.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Time for Sending Log Specifies the time of day to send the log, using 23:59 notation. Relevant when the log is sent daily. • Time Zone Specify your local time zone and click Apply. This setting will be used for the blocking schedule and also for time-stamping log entries. • Adjust for Daylight Savings Time The gateway does not automatically adjust for daylight savings time. Check this box if you are currently on daylight savings time.
Reference Manual for the Model DG814 DSL Modem Internet Gateway To add a keyword or domain, type it in the Keyword box, click Add Keyword, then click Apply. To delete a keyword or domain, select it from the list, click Delete Keyword, then click Apply. Keyword application examples: • If the keyword "XXX" is specified, the web address is blocked. • If the keyword “.com” is specified, only websites with other domain suffixes (such as .edu or .gov) can be viewed.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Trusted The Model DG814 gateway allows you to specify one Trusted User, which is a PC that will be exempt from blocking and logging. Since the Trusted User will be identified by an IP address, you should configure that PC with a fixed IP address. The Trusted tab is shown below. To specify a Trusted Host, enter the Trusted Host’s IP address in the Trusted Device box and click Apply.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Logs The log is a detailed record of what websites you have accessed or attempted to access. Up to 128 entries are stored in the log. Log entries will only appear when keyword blocking is enabled, and no log entries will be made for the Trusted User. Log entries are described in Table 4-1 Table 4-1. Content Filter Log entry descriptions Field Description No. The index number of the content filter log entries.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Log viewing buttons are described in Table 4-2 Table 4-2. Log display buttons Field Description Previous Page Refresh Clear Click this button to view the previous log page. Click this button to refresh the log screen. Click this button to clear the log entries. Click this button to view the next log page.
Chapter 5 Advanced Configuration of the Router This chapter describes how to configure the advanced features of your Model DG814 DSL Modem Internet Gateway. These features can be found by clicking on the Advanced heading in the Main Menu of the browser interface. One advanced feature, Content Filtering, is described in the previous chapter. System Settings The first feature category under the Advanced heading is SYSTEM settings. These are general purpose settings.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Dynamic DNS Your router supports Dynamic Domain Name Service (DDNS). In a Dynamic DNS service, an IP registry server provides a public central database where dynamically-assigned IP addresses can be stored and retrieved by hostname lookup. The Dynamic DNS server also stores password-protected e-mail addresses along with IP addresses and hostnames and accepts queries based on e-mail addresses.
Reference Manual for the Model DG814 DSL Modem Internet Gateway LAN Setup The second feature category under the Advanced heading is LAN SETUP. This menu allows configuration of LAN IP services such as DHCP and RIP. From the Main Menu of the browser interface, under Advanced, click LAN to view the LAN SETUP menu, shown in Figure 5-1, below. Figure 5-1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Table 5-2 lists and describes the fields to use for setting up DHCP parameters. Table 5-2. DHCP Setup Fields Field Description DHCP Server: If this box is checked, the router acts as a DHCP server. If this box is cleared, the router’s DHCP server is disabled. Pool Starting Address The beginning of the range of IP addresses to assign. Count The number of sequential addresses available for assignment to attached hosts.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Table 5-3. Field LAN TCP/IP Setup Fields (continued) Description RIP Direction RIP Version This parameter determines how the router handles RIP (Routing Information Protocol). RIP allows the router to exchange routing information with other routers. If set to None (default), the router does not participate in any RIP exchange with other routers.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Configuring for Port Forwarding to Local Servers Although the router causes your entire local network to appear as a single machine to the Internet, you can make local servers for different services (for example, FTP or HTTP) visible and available to the Internet. This is done using the PORTS menu. From the Main Menu of the browser interface, under Advanced, click PORTS to view the port forwarding screen, shown in Figure 5-2. Figure 5-2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Use the PORTS menu to configure the router to forward incoming protocols to IP addresses on your local network based on the port number. In addition to servers for specific protocols, you can also specify a Default (also called DMZ) Server to which all other incoming protocols are forwarded. To configure port forwarding to a local server: 1. Enter the Port Number in an unused Start Port box. 2.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • Local PCs must access the local server using the PCs’ local LAN address (192.168.0.33 in this example). Attempts by local PCs to access the server using the external IP address (172.16.1.23 in this example) will fail. Local Game Host or Videoconference Example Some online games and videoconferencing applications are incompatible with NAT.
Reference Manual for the Model DG814 DSL Modem Internet Gateway To add or edit a Static Route, select a number and click the Edit button to open the Edit Menu, shown in Figure 5-4, below. Figure 5-4. Static Route Entry and Edit Menu Table 5-5 lists and describes the fields for the IP Static Route Edit menu. Table 5-5. Edit IP Static Route Fields Field Description Route Name Enter a descriptive name for this route for identification purposes only.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Static Route Example As an example of when a static route is needed, consider the following case: • Your primary Internet access is through the Model DG814 gateway to an ISP. • You have an ISDN router on your home network for connecting to the company where you are employed. This router’s address on your LAN is 192.168.0.100. • Your company’s network is 134.177.0.0.
Chapter 6 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. System Status The System Status menu provides a limited amount of status and usage information. From the Main Menu of the browser interface, click Maintenance, then select SYSTEM STATUS to view the System Status screen, shown in Figure 6-1. Figure 6-1.
Reference Manual for the Model DG814 DSL Modem Internet Gateway The System Status screen shows the parameters listed in Table 6-1 Table 6-1. System Status fields Field Description System Name This field displays the Host Name assigned to the router. Router Firmware Version This field displays the router firmware version. WAN Port These parameters apply to the Internet (WAN) port of the router. IP Address This field displays the IP address being used by the Internet (WAN) port of the router.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Click the “Show Statistics” button to display router usage statistics, as shown in Figure 6-2 below.: Figure 6-2. Router Statistics screen This screen shows the following statistics:. Table 6-2. Router Statistics Fields Field Description Port The statistics for the WAN (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 check the status in detail, as shown in Figure 6-3, below. Figure 6-3. PPPoE Status screen The router 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 router, as shown in Figure 6-4 below. Figure 6-4. 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. DHCP Table The DHCP Table shows all IP address assignments that have been made by the gateway’s DHCP server.
Reference Manual for the Model DG814 DSL Modem Internet Gateway For each PC client, the table shows the IP address, NetBIOS Host Name and Ethernet MAC address. Note that if the gateway is rebooted, the table data is lost until each PC renews its DHCP lease. 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 (.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Restore and Backup the Configuration The Restore and Backup tabs in the Maintenance menu allow you to save and retrieve a file containing your gateway’s configuration settings. To save your settings, select the Backup tab. Click the Backup button. Your browser will extract the configuration file, named ‘rom-0’, from the gateway and will prompt you for a location on your PC to store the file. To restore your settings, select the Restore tab.
Reference Manual for the Model DG814 DSL Modem Internet Gateway Using the Default Reset button To restore the factory default configuration settings without knowing the Manager password or IP address, you must use the Default Reset button on the rear panel of the router. 1. Press the Default Reset button for 10 seconds, then release it. If the TEST LED begins to blink, the defaults have been restored and the router is now rebooting. Otherwise, go to step 2. 2. Disconnect the power from the router. 3.
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 router, 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 router 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 router.
Reference Manual for the Model DG814 DSL Modem Internet Gateway • If your router’s IP address has been changed and you don’t know the current IP address, clear the router’s configuration to factory defaults. This will set the router’s IP address to 192.168.0.1. This procedure is explained in “Using the Default Reset button“ on page 6-8. • 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 To check the WAN IP address from the browser interface: 1. Launch your browser and select an external site such as www.netgear.com 2. Access the Main Menu of the router’s configuration at http://192.168.0.1 3. Under the Maintenance heading check that an IP address is shown for the WAN Port If 0.0.0.0 is shown, your router has not obtained an IP address from your ISP.
Reference Manual for the Model DG814 DSL Modem Internet Gateway If you cannot connect after several minutes, you may be using an incorrect Service Name, User Name or Password. There also may be a provisioning problem with your ISP. Note: Unless you connect manually, the router will not authenticate using PPPoE or PPPoA until data is transmitted to the network.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 2. In the field provided, type Ping followed by the IP address of the router, as in this example: ping 192.168.0.1 3. Click OK.
Reference Manual for the Model DG814 DSL Modem Internet Gateway — Check that your PC has the IP address of your router listed as the default gateway. If the IP configuration of your PC is assigned by DHCP, this information will not be visible in your PC’s Network Control Panel. Go to the Run… window and run winipcfg. Verify that the IP address of the router is listed as the default gateway as described in“Verifying TCP/IP Properties“ on page 3-6.
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 Network Address Translation A technique by which several hosts share a single IP address for access to the Internet. NID Network Interface Device. The point of demarcation, where the telephone line comes into the house. Packet A block of information sent over a network. A packet typically contains a source and destination network address, some protocol and length information, a block of data, and a checksum.
Reference Manual for the Model DG814 DSL Modem Internet Gateway 4 VCI Virtual Channel Identifier. Together with the VPI, defines a Virtual Channel through an ATM network. Used by ATM switching equipment to route data through the network. VPI Virtual Path Identifier. Together with the VCI, defines a Virtual Channel through an ATM network. Used by ATM switching equipment to route data through the network. VPN Virtual Private Network.
Index A Address Resolution Protocol B-9 ADSL connecting through other jacks 2-7 connecting through RJ11 2-6 ARP B-9 Auto MDI/MDI-X 1-2, 1-3, 2-6, B-11, B-12 Auto Uplink 1-3, 2-6 B customer support iii D date and time 7-8 daylight savings time 4-8, 7-8 default reset button 6-8 DHCP 1-2, 1-4, 3-2, 4-5, 5-3, B-10 configuring on PC 3-4 DHCP Setup 5-4 DMZ 1-3, 5-7 backup configuration 6-7 DNS Proxy 1-2, 1-4, 5-4 blocking by keyword 4-8 DNS server 3-10, 4-5, 5-4 C cables, pinout B-11 Cabling B-11 Cat5 ca
F K factory settings, restoring 6-7 keyword blocking 4-8 features 1-1 Firmware Version ADSL 6-2 router 6-2 front panel 2-2 G gateway address 3-10 L LAN interface 1-3 LAN Setup configuring 5-3 LAN Setup Menu 5-3 LEDs 2-2 description 2-3 Linux 3-2 H Host Name Dynamic DNS 5-2 Host name 4-3 I IANA contacting B-2 IETF xiii Web site address B-7 installation 1-4 Internet account address information 3-9 establishing 3-8 IP address router setup 5-4 Static Route menu 5-9 LLC-BASED multiplexing method 4-4 log
access device 2-2 hardware 2-2 contacting xiii netmask B-4 translation table B-6 reset button, clearing config 6-8 Network Address Translation 1-2, 1-4, 3-9, B-7 restore configuration 6-6 Network Time Protocol 4-8, 7-8 restore factory settings 6-7 NTP 4-8, 7-8 RFC 1466 xiii, B-7 1597 xiii, B-7 1631 xiv, B-8 finding B-7 P package contents 2-1 password changing 5-2 Dynamic DNS 5-2 restoring to default 6-7 RIP B-2 configuring 5-5 rom-0 file 6-7 PC, using to configure 3-11 Route Name Static Route me
technical support xiii time of day 7-8 time zone 4-8 time-stamping 4-8 troubleshooting 7-1 Trusted User 4-10 typographical conventions xv U UNIX 3-2 uplink switch B-11 User Dynamic DNS 5-2 V VC-BASED multiplexing method 4-4 VCI 3-9 VPI 3-9 VPI/VCI 6-2 configuration 4-4 W Wildcard Dynamic DNS 5-2 Windows 2000 3-5 Windows 3.
