1. Manuals
  2. Brands
  3. NETGEAR Manuals
  4. Modem
  5. DG814 - DSL Modem Internet Gateway
  6. Reference manual

NETGEAR DG814 Reference Manual

Dsl modem internet gateway
Hide thumbs Also See for DG814:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Installation Manual
Reference Manual for the
Model DG814 DSL
Modem Internet Gateway
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
SM-DG814NA-3
October 2002

Advertisement

Table of Contents
loading

Related Manuals for NETGEAR DG814

Summary of Contents for NETGEAR DG814

  • Page 1 Reference Manual for the Model DG814 DSL Modem Internet Gateway NETGEAR, Inc. 4500 Great America Parkway Santa Clara, CA 95054 USA Phone 1-888-NETGEAR SM-DG814NA-3 October 2002...
  • Page 2 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. NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

  • Page 3: Customer Support

    Certificate of the Manufacturer/Importer It is hereby certified that the Model DG814 DSL Modem Internet Gateway has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions.

  • Page 5: Table Of Contents

    Contents Chapter 1 Introduction About the Gateway ......................1-1 Key Features ........................1-1 Content Filtering .......................1-3 Security ........................1-3 Autosensing 10/100 Ethernet ...................1-3 TCP/IP ........................1-4 Easy Installation and Management ................1-4 Maintenance and Support ..................1-5 Chapter 2 Setting Up the Hardware Package Contents ......................2-1 Local Network Hardware Requirements .................2-2 PC Requirements ....................2-2 Access Requirement ..................2-2...
  • Page 6 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) ..............3-5 Configuring Windows NT or 2000 for IP Networking ............3-5 Install or Verify Windows Networking Components ..........3-5 Verifying TCP/IP Properties ..................3-6 Configuring the Macintosh for IP Networking ..............3-6...
  • Page 7 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 ..................6-2 Edit or Delete a Port Forwarding Entry ..............6-3 Local Web and FTP Server Example ..............6-3 Tip: Multiple Computers for Half Life, KALI or Quake III ........6-3 NAT Status .......................6-4 Security ...........................6-5...
  • Page 8 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 ....................A-1 Appendix B Networks and Routing Basics Basic Router Concepts ....................
  • Page 9 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. Browser-based configuration main menu ..........4-3 Figure 4-3. Setup Wizard menu for Dynamic IP address ...........4-5 Figure 4-4.

  • Page 11: About This Guide

    ™ 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...
  • Page 12 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). About This Guide...

  • Page 13: Typographical Conventions

    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. Screen text, user-typed command-line entries. courier font Initial Caps Menu titles and window and button names.

  • Page 15: Introduction

    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.
  • Page 16 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 •...

  • Page 17: Content Filtering

    • Logging of inappropriate use You can configure the Model DG814 gateway to log access to Web sites and to e-mail the log to you. You can also configure the gateway to send an immediate alert e-mail message to you whenever a local user attempts to access a blocked Web site.

  • Page 18: Tcp/Ip

    • IP Address Sharing by NAT The Model DG814 gateway allows several networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your Internet service provider (ISP). This technique, known as Network Address Translation (NAT), allows the use of an inexpensive single-user ISP account.

  • Page 19: Maintenance And Support

    The Model DG814 gateway automatically senses the type of Internet connection, asking you only for the information required for your type of ISP account. • Visual monitoring The Model DG814 gateway’s front panel LEDs provide an easy way to monitor its status and activity. • Remote Management The Model DG814 gateway can be configured to allow management from selected IP addresses on the WAN.
  • Page 20 Reference Manual for the Model DG814 DSL Modem Internet Gateway Introduction...

  • Page 21: Setting Up The Hardware

    • Support Information Card If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the carton, including the original packing materials, in case you need to return the gateway for repair. Setting Up the Hardware...

  • Page 22: Local Network Hardware Requirements

    (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. If the PC will connect to your network at 100 Mbps, you must use a Category 5 (CAT5) cable such as the cable provided with your gateway.

  • Page 23: The Gateway's Rear Panel

    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...

  • Page 24: Connecting The Gateway

    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 •...

  • Page 25: Connecting To Your Local Ethernet Network

    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.

  • Page 26: Connecting To Your Adsl Service And Telephone Provider

    (pins 2 and 3 of the 4-pin jack). If this is not the case, a swapper (not included) is necessary to move the connection to the inner pair. To install the Model DG814 gateway directly to the wall jack without installing a telephone: Connect the provided telephone cable to the wall jack.

  • Page 27: Adsl Through Other Wall Jacks

    Reference Manual for the Model DG814 DSL Modem Internet Gateway ADSL through other wall jacks Plug the “LINE” connection from the included microfilter into the wall jack. Connect the “DSL” jack of the microfilter to the ADSL port of your gateway using the telephone cable provided.
  • Page 28 Reference Manual for the Model DG814 DSL Modem Internet Gateway All LEDs will briefly be tested. 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.

  • Page 29: Preparing Your Network

    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.

  • Page 30: Configuring Windows 95, 98, And Me For Ip Networking

    “Appendix B, “Networks and Routing Basics.” The Model DG814 gateway is shipped preconfigured as a DHCP server. The gateway assigns the following TCP/IP configuration information automatically when the PCs are rebooted: • PC or workstation IP addresses—192.168.0.2 through 192.168.0.254 •...
  • Page 31 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.

  • Page 32: Assign Tcp/Ip Configuration By Dhcp

    The simplest way to configure this information is to allow the PC to obtain the information from the internal DHCP server of the Model DG814 gateway. To use DHCP with the recommended default addresses, follow these steps: Connect all PCs to the gateway, then restart the gateway and allow it to boot.

  • Page 33: Verifying Tcp/Ip Properties (Windows)

    Reference Manual for the Model DG814 DSL Modem Internet Gateway Select “I want to connect through a Local Area Network” and click Next. Uncheck all boxes in the LAN Internet Configuration screen and click Next. Proceed to the end of the Wizard.

  • Page 34: Verifying Tcp/Ip Properties

    Reference Manual for the Model DG814 DSL Modem Internet Gateway Select Properties. Verify that ‘Client for Microsoft Networks’ and ‘Internet Protocol (TCP/IP)’ are present. If not, select Install and add them. Select ‘Internet Protocol (TCP/IP)’, click Properties, and verify that “Obtain an IP address automatically is selected.

  • Page 35: Macos X

    Reference Manual for the Model DG814 DSL Modem Internet Gateway The TCP/IP Control Panel opens: From the “Connect via” box, select your Macintosh’s Ethernet interface. From the “Configure” box, select Using DHCP Server. You can leave the DHCP Client ID box empty.

  • Page 36: Verifying Tcp/Ip Properties (Macintosh)

    For access to the Internet, you need to contract with an Internet service provider (ISP) for a single-user Internet access account using ADSL. The Model DG814 DSL Modem Internet Gateway includes a built-in ADSL modem that connects directly to your ADSL line.

  • Page 37: Login Protocols

    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.

  • Page 38: Obtaining Isp Configuration Information (Windows)

    As mentioned above, you may need to collect configuration information from your PC 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.

  • Page 39: Obtaining Isp Configuration Information (Macintosh)

    Once you’ve set up your computers to work with the gateway, you must reset the network for the devices to be able to communicate correctly. Turn off the Model DG814 gateway, and then turn it on again and wait until the Test light turns off.
  • Page 40 Reference Manual for the Model DG814 DSL Modem Internet Gateway 3-12 Preparing Your Network...

  • Page 41: Basic Configuration Of The Gateway

    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.

  • Page 42: Figure 4-1. Login Window

    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. Type in the User Name box, in the Password box, and then click OK.

  • Page 43: Figure 4-2. Browser-Based Configuration Main Menu

    Reference Manual for the Model DG814 DSL Modem Internet Gateway Figure 4-2. Browser-based configuration main menu Basic Configuration of the Gateway...

  • Page 44: Configuration Using The Setup Wizard

    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.

  • Page 45: Configuring For Dynamic Ip Account

    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,...
  • Page 46 Reference Manual for the Model DG814 DSL Modem Internet Gateway 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.

  • Page 47: Configuring For Fixed Ip Account

    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.
  • Page 48 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.

  • Page 49: Configuring For An Account With Login

    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...

  • Page 50: Manual Configuration

    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 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”...
  • Page 51 Reference Manual for the Model DG814 DSL Modem Internet Gateway 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.

  • Page 52: Completing The Configuration

    Click on Apply, then proceed to “Completing the Configuration“ on page 4-12. Completing the Configuration Click on the Test button to test your Internet connection. If the NETGEAR website does not appear within one minute, refer to Chapter 7, “Troubleshooting”.
  • Page 53 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.
  • Page 54 Reference Manual for the Model DG814 DSL Modem Internet Gateway 4-14 Basic Configuration of the Gateway...

  • Page 55: Maintenance

    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.

  • Page 56: Figure 5-1. Gateway Status Screen

    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.
  • Page 57 Reference Manual for the Model DG814 DSL Modem Internet Gateway Table 5-1. Gateway Status Fields Field Description DHCP 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.

  • Page 58: Figure 5-2. Gateway Statistics Screen

    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.

  • Page 59: Figure 5-3. Pppoe Status Screen

    Connection Time field. The Model DG814 gateway goes through the following steps to bring up a PPPoE or PPPoA connection.

  • Page 60: Attached Devices

    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”...

  • Page 61: Configuration File Settings Management

    Configuration File Settings Management The configuration settings of the Model DG814 gateway are stored within the gateway in a configuration file. This file can be saved (backed up) to a user’s PC, retrieved (restored) from the user’s PC, or cleared to factory default settings.

  • Page 62: Erase The Configuration

    7-8. Changing the Configuration Password The default password for the gateway’s Web Configuration Manager is password. Netgear recommends that you change this password to a more secure password. From the Main Menu of the browser interface, under the Maintenance heading, select Set...

  • Page 63: Gateway Upgrade

    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.
  • Page 64 Reference Manual for the Model DG814 DSL Modem Internet Gateway 5-10 Maintenance...

  • Page 65: Advanced Configuration Of The Gateway

    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.

  • Page 66: Add A Custom Service

    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.

  • Page 67: Edit Or Delete A Port Forwarding Entry

    Reference Manual for the Model DG814 DSL Modem Internet Gateway Type a name for the service. 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.

  • Page 68: Nat Status

    Some online games and videoconferencing applications are incompatible with NAT. The Model DG814 gateway is programmed to recognize some of these applications and to work properly with them, but there are other applications that may not function well. In some cases, one local PC can run the application properly if that PC’s IP address is entered as the default in the PORTS Menu.

  • Page 69: Security

    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.

  • Page 70: Respond To Ping On Internet Wan Port

    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.

  • Page 71: Lan Ip Setup

    Reference Manual for the Model DG814 DSL Modem Internet Gateway 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.

  • Page 72: Dhcp

    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.

  • Page 73: Remote Management

    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.

  • Page 74: Figure 6-4. Remote Management Menu

    Select the Allow Remote Management check box. 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. To allow access from any IP address on the Internet, select Everyone.

  • Page 75: Static Routes

    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.

  • Page 76: Figure 6-5. Static Route Summary Table

    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...

  • Page 77: 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.
  • Page 78 Reference Manual for the Model DG814 DSL Modem Internet Gateway 6-14 Advanced Configuration of the Gateway...

  • Page 79: Troubleshooting

    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: When power is first applied, verify that the Power LED is on.

  • Page 80: Test Led Never Blinks Or Led Stays 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.

  • Page 81: Troubleshooting The Isp Connection

    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.

  • Page 82: Wan Led Off

    ADSL service. It may be necessary to use a swapper if you ADSL signal is on pins 1 and 4 or the RJ-11 jack. The Model DG814 gateway uses pins 2 and 3.

  • Page 83: Troubleshooting Pppoe Or Pppoa

    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.

  • Page 84: Troubleshooting A Tcp/Ip Network Using A Ping Utility

    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.

  • Page 85: Testing The Path From Your Pc To A Remote Device

    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.

  • Page 86: Restoring The Default Configuration And Password

    The E-Mail menu in the Content Filtering section displays the current date and time of day. The Model DG814 gateway uses the Network Time Protocol (NTP) to obtain the current time from one of several Network Time Servers on the Internet. Each entry in the log is stamped with the date and time of day.

  • Page 87: Technical Specifications

    Appendix A Technical Specifications This appendix provides technical specifications for the Model DG814 DSL Modem Internet Gateway. General Specifications Network Protocol and Standards Compatibility Data and Routing Protocols: TCP/IP RIP-1/RIP-2 DHCP server and DHCP relay RFC 1483, 2684 Bridged Ethernet Encapsulation...
  • Page 88 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.

  • Page 89: Networks And Routing Basics

    Routers vary in performance and scale, number of routing protocols supported, and types of physical WAN connection they support. The Model DG814 DSL Modem Internet Gateway is a residential or small office router that routes the IP protocol over a single-user ADSL connection.

  • Page 90: Routing Information Protocol

    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. RIP is not required for most home applications.

  • Page 91: Figure B-1. Three Main Address Classes

    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.

  • Page 92: Netmask

    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.

  • Page 93: Figure B-2. Example Of Subnetting A Class B Address

    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.
  • Page 94 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.

  • Page 95: Private Ip Addresses

    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.

  • Page 96: Figure B-3. Single Ip Address Operation Using Nat

    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.

  • Page 97: Mac Addresses And Address Resolution Protocol

    Many of the resources on the Internet can be addressed by simple descriptive names such as www.NETGEAR.com. This addressing is very helpful at the application level, but the descriptive name must be translated to an IP address in order for a user to actually contact the resource. Just as...

  • Page 98: Ip Configuration By Dhcp

    IP addresses, along with other information (such as gateway and DNS addresses) that it may assign to the other devices on the network. The Model DG814 gateway has the capacity to act as a DHCP server.

  • Page 99: Ethernet Cabling

    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...

  • Page 100: Cable Quality

    • Auto MDI/MDI-X switching Some Ethernet switch products, such as the Model DG814 gateway, are able to sense the polarity of a connection and automatically adapt to the proper mating polarity. Cable Quality...

  • Page 101: Glossary

    Domain names are of the form of a registered entity name plus one of a number of predefined top level suffixes such as .com, .edu, .uk, etc. For example, in the address mail.NETGEAR.com, mail is a server name and NETGEAR.com is the domain.
  • Page 102 Reference Manual for the Model DG814 DSL Modem Internet Gateway 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).
  • Page 103 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.
  • Page 104 Reference Manual for the Model DG814 DSL Modem Internet Gateway Routing Information A protocol in which routers periodically exchange information with one Protocol another so that they can determine minimum distance paths between sources and destinations. Subnet Mask See netmask.
  • Page 105 Index Account Name 4-5, 4-9, 4-10 date and time 7-8 Address Resolution Protocol B-9 daylight savings time 7-8 ADSL default reset button 7-8 connecting through other jacks 2-7 DHCP 1-2, 1-4, 3-2, 6-8, B-10 connecting through RJ11 2-6 DHCP Client ID 3-7 ARP B-9 DHCP Setup field, Ethernet Setup menu 5-2 Auto MDI/MDI-X 1-4, 2-6, B-11, B-12...
  • Page 106 IP addresses 3-10, 3-11 and NAT B-7 and the Internet B-2 NAT Status 6-4 assigning 1-xi, B-2 NAT. See Network Address Translation auto-generated 7-2 NETGEAR private B-7 contacting 1-xi translating 1-xii netmask B-4 IP configuration by DHCP B-10 translation table B-6...
  • Page 107 login 3-9 Status 5-5 Secondary DNS Server 4-6, 4-7, 4-10, 4-11 PPP over Ethernet 1-2, 1-4, 3-9, 4-9, 4-10, 5-5 security 1-1, 1-3 login 3-9 Status 5-5 Service Name 4-10 PPPoA. See PPP over ATM Setup Wizard 4-1 PPPoE See PPP over Ethernet Start Port 6-2 Primary DNS Server 4-6, 4-7, 4-10, 4-11 Static Routes 6-11...
  • Page 108 World Wide Web 1-iii Index...

Table of Contents