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Contents

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 .................................................................................................. B-1

What is a Router? ................................................................................................... B-1
Routing Information Protocol ................................................................................... B-2
IP Addresses and the Internet ................................................................................. B-2
Netmask .................................................................................................................. B-4
Subnet Addressing .................................................................................................. B-4
Private IP Addresses ............................................................................................... B-7
Single IP Address Operation Using NAT ................................................................. B-7
MAC Addresses and Address Resolution Protocol ................................................. B-9
Domain Name Server .............................................................................................. B-9
IP Configuration by DHCP .................................................................................... B-10

Ethernet Cabling ...........................................................................................................B-11

Uplink Switches, Crossover Cables, and MDI/MDIX Switching .............................B-11
Cable Quality ......................................................................................................... B-12

Glossary

Index

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Содержание DG814 - DSL Modem Internet Gateway

Страница 1: ...SM DG814NA 3 October 2002 NETGEAR Inc 4500 Great America Parkway Santa Clara CA 95054 USA Phone 1 888 NETGEAR Reference Manual for the Model DG814 DSL Modem Internet Gateway...

Страница 2: ...idential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio com...

Страница 3: ...trictions Please refer to the notes in the operating instructions Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted...

Страница 4: ...iv...

Страница 5: ...Network Hardware Requirements 2 2 PC Requirements 2 2 Access Requirement 2 2 The Gateway s Front Panel 2 2 The Gateway s Rear Panel 2 3 Connecting the Gateway 2 4 Connecting to your Local Ethernet Net...

Страница 6: ...net Account 3 8 Login Protocols 3 9 Account Information 3 9 Obtaining ISP Configuration Information Windows 3 10 Obtaining ISP Configuration Information Macintosh 3 11 Restarting the Network 3 11 Read...

Страница 7: ...N Port 6 6 Dynamic DNS 6 6 LAN IP Setup 6 7 DHCP 6 8 Use router as DHCP server 6 8 Remote Management 6 9 Static Routes 6 11 Static Route Example 6 13 Chapter 7 Troubleshooting Basic Functioning 7 1 PW...

Страница 8: ...etworks and Routing Basics Basic Router Concepts B 1 What is a Router B 1 Routing Information Protocol B 2 IP Addresses and the Internet B 2 Netmask B 4 Subnet Addressing B 4 Private IP Addresses B 7...

Страница 9: ...tatistics screen 5 4 Figure 5 3 PPPoE Status screen 5 5 Figure 5 4 Ping Status screen 5 6 Figure 5 5 Attached Devices menu 5 6 Figure 5 6 Backup Settings menu 5 7 Figure 5 7 Set Password menu 5 8 Figu...

Страница 10: ...x...

Страница 11: ...ument you may be directed to various RFC documents for further information An RFC is a Request For Comment RFC published by the Internet Engineering Task Force IETF an open organization that defines t...

Страница 12: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway xii About This Guide For more information about IP address translation refer to RFC 1631 The IP Network Address Translator NAT...

Страница 13: ...Ctrl C Two or more keys that must be pressed simultaneously are shown in text linked with a plus sign ALL CAPS DOS file and directory names Special Message Formats This guide uses the following format...

Страница 14: ......

Страница 15: ...rents and network administrators can establish restricted access policies based on time of day and address keywords and share high speed ADSL Internet access for up to 253 personal computers Network A...

Страница 16: ...ork Address Translation NAT for operation with a single static or dynamic IP address Dynamic Host Configuration Protocol DHCP server for dynamically assigning network configuration information to PCs...

Страница 17: ...el DG814 gateway is equipped with several features designed to maintain security as described in this section PCs Hidden by NAT Network address translation NAT opens a temporary path to the Internet f...

Страница 18: ...ce provider ISP This technique known as Network Address Translation NAT allows the use of an inexpensive single user ISP account Automatic Configuration of Attached PCs by DHCP The Model DG814 gateway...

Страница 19: ...the browser based Web Management Interface Smart Wizard The Model DG814 gateway automatically senses the type of Internet connection asking you only for the information required for your type of ISP...

Страница 20: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway 1 6 Introduction...

Страница 21: ...adapter 18 V AC output varies by region Category 5 Cat 5 Ethernet cable straight through wiring Telephone cable Microfilters quantity and type vary by region Model DG814 Resource CD including This gu...

Страница 22: ...814 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...

Страница 23: ...r is not supplied to the gateway Test On Off The system is initializing The system is ready and running ADSL Wide Area Network On Green Blink Green Blink Yellow Off The ADSL port has linked with the s...

Страница 24: ...eset 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 Conn...

Страница 25: ...cal 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 E...

Страница 26: ...cable The Local port of your Model DG814 gateway will automatically configure itself properly Connecting to Your ADSL Service and Telephone Provider The ADSL and telephone connections may vary by reg...

Страница 27: ...u will need to purchase additional microfilters and connect them between the telephones and the wall jack A microfilter is required for each telephone on the line Connecting the Power Adapter To conne...

Страница 28: ...s not lit The Local port LEDs are lit for any local ports that are connected 3 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 dev...

Страница 29: ...erm PC to refer to personal computers in general and not necessarily Windows computers Most PC operating systems include the software components you need for networking with TCP IP Windows 95 or later...

Страница 30: ...uration items refer to 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 autom...

Страница 31: ...button b Select Adapter and then click Add c Select the manufacturer and model of your Ethernet adapter and then click OK If you need TCP IP a Click the Add button b Select Protocol and then click Ad...

Страница 32: ...ay To use DHCP with the recommended default addresses follow these steps 1 Connect all PCs to the gateway then restart the gateway and allow it to boot 2 On each attached PC open the Network control p...

Страница 33: ...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 0 254 The subn...

Страница 34: ...guration 1 On the Windows taskbar click the Start button and then click Run The Run window opens 2 Type cmd and then click OK A command window opens 3 Type ipconfig all Your IP Configuration informati...

Страница 35: ...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...

Страница 36: ...ult TCP IP settings that NETGEAR recommends The IP Address is between 192 168 0 2 and 192 168 0 254 The Subnet mask is 255 255 255 0 The Router address is 192 168 0 1 If you do not see these values yo...

Страница 37: ...nternet through the broadband modem The method used by the gateway to accomplish this is called Network Address Translation NAT or IP masquerading Login Protocols Some ISPs require a special login pro...

Страница 38: ...Windows taskbar click the Start button point to Settings and then click Control Panel 2 Double click the Network icon The Network window opens which displays a list of installed components 3 Select T...

Страница 39: ...ction 2 If an IP address and subnet mask are shown write down the information 3 If an IP address appears under Router address write down the address This is the ISP s gateway address 4 If any Name Ser...

Страница 40: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway 3 12 Preparing Your Network...

Страница 41: ...Java your Web browser must be Java enabled and support HTTP uploads NETGEAR recommends using Microsoft Internet Explorer or Netscape Navigator 4 0 or above Free browser programs are readily available...

Страница 42: ...y 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 passw...

Страница 43: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway Basic Configuration of the Gateway 4 3 Figure 4 2 Browser based configuration main menu...

Страница 44: ...the opening screen shown in Figure 4 2 When the Wizard launches allow the gateway to automatically determine your connection type by selecting Yes in the menu below and clicking Next The Setup Wizard...

Страница 45: ...ines 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 Setup Wizard menu for Dynamic IP address 1 Enter your Account N...

Страница 46: ...uld reboot your PCs after configuring the gateway 3 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...

Страница 47: ...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...

Страница 48: ...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...

Страница 49: ...e 4 5 Setup Wizard menu for PPPoE login accounts 1 Enter your Account Name may also be called Host Name and Domain Name These parameters may be necessary to access your ISP s services such as mail or...

Страница 50: ...r configuring the gateway 4 ISP Parameters for Internet Access The Multipling Method and VPI VCI discovered by the Smart Wizard are displayed here You should not need to change these 5 Click on Apply...

Страница 51: ...ic IP address Enter the IP address that your gateway has been assigned Also enter the netmask and the Gateway IP address The Gateway IP Address is the ISP s router to which your gateway will connect 3...

Страница 52: ...ot be done unless you are sure it is necessary for your ISP connection Any packets sent through the gateway that are larger than the configured MTU size will be repackaged into smaller packets to meet...

Страница 53: ...ialer 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 To access the Internet from any PC connected to...

Страница 54: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway 4 14 Basic Configuration of the Gateway...

Страница 55: ...se 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 informati...

Страница 56: ...s 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 IP Address This field d...

Страница 57: ...LAN Modem These parameters apply to the ADSL modem section of the gateway ADSL Firmware Version This field displays the ADSL chipset firmware version Modem Status This field displays the state of the...

Страница 58: ...port TxPkts The number of packets transmitted on this port since reset or manual clear RxPkts The number of packets received on this port since reset or manual clear Collisions The number of collisio...

Страница 59: ...nection Time field The Model DG814 gateway goes through the following steps to bring up a PPPoE or PPPoA connection 1 The WAN LED indicates whether the ADSL physical layer can connect to the telephone...

Страница 60: ...lows 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 I...

Страница 61: ...from the user s PC or cleared to factory default settings From the Main Menu of the browser interface under the Maintenance heading select the Backup Settings heading to bring up the menu shown in Fig...

Страница 62: ...IP address will be 192 168 0 1 and the gateway s DHCP client will be enabled To erase the configuration click the Erase button To restore the factory default configuration settings without knowing the...

Страница 63: ...ape Navigator 3 0 or above From the Main Menu of the browser interface under the Maintenance heading select the Gateway Upgrade heading to display the menu shown in Figure 5 8 Figure 5 8 Gateway Upgra...

Страница 64: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway 5 10 Maintenance...

Страница 65: ...ser interface Configuring for Port Forwarding to Local Servers Although the gateway causes your entire local network to appear as a single machine to the Internet you can make a local server for examp...

Страница 66: ...sponding Server IP Address box 3 Click the Add button Add a Custom Service To define a service game or application that does not appear in the Services Games list you must determine what port numbers...

Страница 67: ...net user can access your Web server by directing the browser to http 172 16 1 23 The assigned IP address can be found in the Maintenance Status Menu where it is shown as the WAN IP Address Some consid...

Страница 68: ...cases one local PC can run the application properly if that PC s IP address is entered as the default in the PORTS Menu If one local PC acts as a game or videoconference host enter its IP address as...

Страница 69: ...ateway 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 applicati...

Страница 70: ...n connect to many popular dynamic DNS services You can select one of these services and obtain an account with them Then whenever your ISP assigned IP address changes your gateway will automatically c...

Страница 71: ...preconfigured to use private IP addresses on the LAN side and to act as a DHCP server The gateway s default LAN IP configuration is LAN IP addresses 192 168 0 1 Subnet mask 255 255 255 0 These addres...

Страница 72: ...rk will be the DHCP server or if you will manually configure the network settings of all of your computers clear the Use router as DHCP server check box Otherwise leave it checked Specify the pool of...

Страница 73: ...kets received RIP Version This controls the format and the broadcasting method of the RIP packets that the gateway sends It recognizes both formats when receiving By default this is set for RIP 1 RIP...

Страница 74: ...to access the gateway s remote management For security NETGEAR recommends that you restrict access to as few external IP addresses as practical a To allow access from any IP address on the Internet se...

Страница 75: ...Internet you will type your gateway s WAN IP address in your browser s Address in IE or Location in Netscape box followed by a colon and the custom port number For example if your external address is...

Страница 76: ...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 th...

Страница 77: ...k is 134 177 0 0 When you first configured your gateway two implicit static routes were created A default route was created with your ISP as the gateway and a second static route was created to your l...

Страница 78: ...Reference Manual for the Model DG814 DSL Modem Internet Gateway 6 14 Advanced Configuration of the Gateway...

Страница 79: ...test procedure is running 3 After approximately 10 seconds verify that a The Test LED is not lit b The LAN port LEDs are lit for any local ports that are connected If a port s LED is lit a link has b...

Страница 80: ...ton on page 7 8 If the error persists you might have a hardware problem and should contact technical support Troubleshooting the Web Configuration Interface If you are unable to access the gateway s W...

Страница 81: ...n the Web Configuration Interface check the following When entering configuration settings be sure to click the APPLY button before moving to another menu or tab or your changes are lost Click the Ref...

Страница 82: ...phone company has made the connection to your line and tested it Verify that you are connected to the correct telephone line If you have more than one phone line be sure that you are connected to the...

Страница 83: ...oA connection can be debugged as follows 1 Access the Main Menu of the gateways configuration at http 192 168 0 1 2 Under the Maintenance heading click the Show PPPoE Status or Show PPPoA Status butto...

Страница 84: ...ng a TCP IP Network Using a Ping Utility Most TCP IP terminal devices and gateways contain a ping utility that sends an echo request packet to the designated device The device then responds with an ec...

Страница 85: ...AN path works correctly test the path from your PC to a remote device From the Windows run menu type PING n 10 IP address where IP address is the IP address of a remote device such as your ISP s DNS s...

Страница 86: ...rear panel of the gateway 1 Press and hold the Default Reset button until the Test LED turns on about 10 seconds 2 Release the Default Reset button and wait for the gateway to reboot Problems with Da...

Страница 87: ...ications 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 RFC 2516 PPP over Ethernet P...

Страница 88: ...169 by 34 mm 10 0 by 6 7 by 1 3 in Weight 0 54 kg 1 2 lb Environmental Specifications Operating temperature 0 to 40 C Operating humidity 90 maximum relative humidity noncondensing Electromagnetic Emi...

Страница 89: ...ng only the data traffic meant for the Internet The function of selecting and forwarding this data is performed by a router What is a Router A router is a device that forwards traffic between networks...

Страница 90: ...t Protocol IP uses a 32 bit address structure The address is usually written in dot notation also called dotted decimal notation in which each group of eight bits is written in decimal form separated...

Страница 91: ...4 hosts on a network A Class B address uses a 16 bit network number and a 16 bit node number Class B addresses are in this range 128 1 x x to 191 254 x x Class C Class C addresses can have 254 hosts o...

Страница 92: ...resses are 255 0 0 0 255 255 0 0 and 255 255 255 0 respectively For example the address 192 168 170 237 is a Class C IP address whose network portion is the upper 24 bits When combined using an AND op...

Страница 93: ...e number of addresses available subnet addressing provides other benefits Subnet addressing allows a network manager to construct an address scheme for the network by using different subnets for other...

Страница 94: ...sk 255 255 255 0 into 16 subnets 4 bits the new subnet mask becomes 255 255 255 240 The following table displays several common netmask values in both the dotted decimal and the masklength formats Tab...

Страница 95: ...0 192 168 255 255 NETGEAR recommends that you choose your private network number from this range The DHCP server of the Model DG814 gateway is preconfigured to automatically assign private addresses R...

Страница 96: ...tes a single IP address operation Figure B 3 Single IP Address Operation Using NAT This scheme offers the additional benefit of simple firewall like protection because the internal LAN addresses are n...

Страница 97: ...est All other stations discard the request The station with the correct IP address responds with its own MAC address directly to the sending device The receiving station provides the transmitting stat...

Страница 98: ...n the network can automatically obtain this configuration information A device on the network may act as a Dynamic Host Configuration Protocol DHCP server The DHCP server stores a list or pool of IP a...

Страница 99: ...perspective of the PC which is wired as Media Dependent Interface MDI In this wiring the PC transmits on pins 1 and 2 At the hub the perspective is reversed and the hub receives on pins 1 and 2 This...

Страница 100: ...ossover cable the orange and blue pairs will be exchanged from one connector to the other Auto MDI MDI X switching Some Ethernet switch products such as the Model DG814 gateway are able to sense the p...

Страница 101: ...ess or group of addresses on the Internet 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 addre...

Страница 102: ...ited area such as one floor of a building A LAN typically connects multiple personal computers and shared network devices such as storage and printers Although many technologies exist to implement a L...

Страница 103: ...int Protocol PPPoA See PPP over ATM PPPoE See PPP over Ethernet PPP over ATM PPPoA PPP over ATM is a protocol for connecting remote hosts to the Internet over an always on connection by simulating a d...

Страница 104: ...l Channel through an ATM network Used by ATM switching equipment to route data through the network VPN Virtual Private Network A method for securely transporting data between two private networks by u...

Страница 105: ...filtering 1 3 conventions typography 1 xiii crossover cable 1 4 2 6 B 12 customer support 1 iii D date and time 7 8 daylight savings time 7 8 default reset button 7 8 DHCP 1 2 1 4 3 2 6 8 B 10 DHCP Cl...

Страница 106: ...spoofing 4 6 4 8 4 12 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 x configuration 3 6 Macintosh Operating System 7 3 2...

Страница 107: ...1466 1 xi B 7 1597 1 xi B 7 1631 1 xii B 8 finding B 7 RIP B 2 RIP Router Information Protocol 6 9 router concepts B 1 Routing Information Protocol 1 4 B 2 S Secondary DNS Server 4 6 4 7 4 10 4 11 se...

Страница 108: ...4 Index World Wide Web 1 iii...

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