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Reference Manual for the Model DG814 DSL Modem Internet Gateway

Advanced Configuration of the Gateway

6-9

 

IP Subnet Mask

 

This is the LAN Subnet Mask of the gateway. Combined with the IP address, the IP Subnet 
Mask allows a device to know which other addresses are local to it, and which must be reached 
through a gateway or router.

RIP Direction

 

RIP (Router Information Protocol) allows a router to exchange routing information with other 
routers. The RIP Direction selection controls how the gateway sends and receives RIP packets. 
Both is the default. 

— When set to Both or Out Only, the gateway will broadcast its routing table periodically. 

— When set to Both or In Only, it will incorporate the RIP information that it receives. 

— When set to None, it will not send any RIP packets and will ignore any RIP packets 

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-1 is universally supported. RIP-1 is probably adequate for most networks, unless you 

have an unusual network setup. 

— RIP-2 carries more information. RIP-2B uses subnet broadcasting..

Remote Management

Using the Remote Management page, you can allow a user or users on the Internet to configure, 
upgrade and check the status of your gateway.

Note: 

If you change the LAN IP address of the gateway while connected through the 

browser, you will be disconnected. You must then open a new connection to the new IP 
address and log in again.

Note: 

Be sure to change the gateway’s default password to a very secure password. The 

ideal password should contain no dictionary words from any language, and should be a 
mixture of letters (both upper and lower case), numbers, and symbols. Your password 
can be up to 30 characters.

Summary of Contents for DG814 - DSL Modem Internet Gateway

Page 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...

Page 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...

Page 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...

Page 4: ...iv...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 10: ...x...

Page 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...

Page 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...

Page 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...

Page 14: ......

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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