NETGEAR DG834GT инструкция обслуживания

August 2004 202-10053-01 REFGD August 2004 NETGEAR , Inc. 4500 Great America Parkway Santa Clara, CA 95 054 USA Phone 1-888-NETGEAR Reference Manual for the Model DG834G T 108 Mbp s Super Wireless ADSL Router[...]

ii August 2004 © 2004 by NETGEAR, Inc. All rights reserved. August 2004. T rademarks NETGEAR is a tr ademark of Netge ar , Inc. Microsoft, W indows, and W indow s NT are registered trademar ks o f Microsoft Corporation. Other brand and product names are registered tradem arks or trademarks of their respective holders. St a tement of Conditions In [...]

August 2004 iii Bestätigung des Hers tellers/Importe urs Es wird hiermit bestätigt, daß das DG834G T 108 Mbps Supe r W ireless ADSL Router ge mäß der im BMP T -AmtsblVfg 243/1991 und Vfg 46/1992 aufgeführten Bestim mungen entstö rt ist. Das vorschrifts mäßig e Betreiben einiger Geräte (z.B. T estsender) kann jedoch gewisse n Beschränkung[...]

August 2004 iv[...]

Contents v August 2004 Content s Chapter 1 About This Guide Audience, Conventions, Sc ope ................ ................ ............. ................. ................ ........ 1-1 How to Use this Manual .. ................. ................ ............. ................ ................ ............. ..... 1-2 How to Print this Manual . ....[...]

August 2004 vi Contents Record Y our Internet Connec tion Information ........................ ............. ................ ..... 3-3 Connecting the DG834G T to Y our LAN .... .... ... ... ... ... .... ... ... ... .... ... ... ... .... ... ............. ... ... .. 3-5 How to Connect the Router ................ ................ ............. .....[...]

Contents vii August 2004 How to Change the Built-In Password ................... ................ ................ ................ .. 5-1 Changing the Administrator Login T imeout .. ............. ............. ............. ................ ..... 5-2 Configuring Basic Firewall Services ... ................ ................ ................ ......[...]

August 2004 viii Contents Enabling Security Event E-mail Notification . ................ ............. ............. ................ ...... 6-13 Running Diagnostic Utilities and Reboot ing t he Router ... ................ ................ ............. 6-14 Enabling Remote Management ... ................. ................ ................ ........[...]

Contents ix August 2004 T roubleshooting PPPoE or PPPo A .............. ................ ....................................... ..... 8-6 T roubleshooting Internet Browsing .... ............. ................ ................. ................ ........ 8-6 T roubleshooting a TCP/IP Network Using the Ping Utility ......... ................ ........[...]

August 2004 x Contents Appendix C Prep aring Y our Network Preparing Y our Computers for TCP/IP Networking ...... ... ... ....... ... ... ... .... ... ... ... ... .... ... ... . C-1 Configuring Windows 95, 98, and Me for TCP/ IP Networking ................ ............ ........... C-2 Installing or V e rifying Windows Networking Components ...... .[...]

Contents xi August 2004 Overview of WEP Parameters .. ................ ................ ............. ................ ................ . D-5 Key Size ....... ............ ................. ............. ................ ............. ............. ................ ....... D-6 WEP Configuration Options ............ ... .... ... ... ... ... .... ...[...]

August 2004 xii Contents[...]

About This Guide 1-1 August 2004 Chapter 1 About This Guide Thank you for pu rchasing the NETGEAR ™ DG834G T 10 8 Mbps Super W ireless ADSL Router. Audience, Conventions, Scope This reference manual assumes that the reader h as basic-to-intermediate computer and Internet skills. However , basic computer network, Internet , firewall, and networkin[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 1-2 About This Guide August 2004 How to Use this Manual The HTML version of this manu al includes these features. Figure 1 -1: HTML version of this manual 1. Left pane . Use the left pane to view the Conten ts, Index, Search, and Favorites tabs. T o view the HTML version of [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router About This Guide 1-3 August 2004 How to Print this Manual T o print this manual you can choose one of the fo llowing several options, a ccording to your needs. • Printing a “How T o” Sequence of S teps in the HTML V iew . Use the Print button on the upper right of the[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 1-4 About This Guide August 2004[...]

Introduction 2-1 August 2004 Chapter 2 Introduction This chapter describes the features of the N ETGEAR DG834G T 108 Mbps Super W ireless ADSL Router. The DG834G T Super W ireless ADSL Router is a combination of a built-in ADSL modem, router, 4-port switch, firewall, an d up to 108 Mbps wireless access point that enables your entire network to safe[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-2 Introduction August 2004 Key Features The DG834G T Super W ireless ADSL Rout er provides the following features: • 802.1 1g wireless networking, wi th the ability to operate in Auto 108 Mbps mode, 108 Mbps “turbo-g” only , the 802.1 1b+g modes, 802 .1 1g-only , and[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Introduction 2-3 August 2004 — 802.1 1b +g modes — 802.1 1g-only — 802.1 1b-only • 64-bit and 128-b it WEP encrypti on security . • WEP keys can be generate d manually or by passphrase. • W ireless access can be restricted by MAC address. • W ireless network n[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-4 Introduction August 2004 • Smart W izard The router automatically senses the type of Internet connection, asking you only for the information required for your type of ISP acco unt. • Remote management The router all ows you to log in to the W eb management interface[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Introduction 2-5 August 2004 • Classical IP (RFC 1577) Some Internet service providers, in Europe for example, use Classical IP in their ADSL services. In such ca ses, the router is able to use the Classical IP address from the ISP . • PPP over Ethernet (PPPoE) PPP over[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-6 Introduction August 2004 The router incorporates Auto Uplink TM technology . Each local Ethernet port will automatically sense whether the Ethernet cable plug ged into the po rt should have a ‘normal’ connection such as to a computer or an ‘uplink’ co nnection su[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Introduction 2-7 August 2004 Figure 2-2: DG834G T Front Panel Y ou can use the LEDs to verify various conditions. Ta b l e 2 - 1 lists and describes each LED on the front panel of the router . These LEDs are green when lit. Power T est Internet Wire les s LAN[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-8 Introduction August 2004 The Router’ s Rear Panel The rear panel of the DG834G T 108 Mbps Super W ireless ADSL Router ( Figu re 2-3 ) contains port connections. T able 2-1. LED De scriptions Label Activity Description Power On Off Power is supplied to the router . Powe[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Introduction 2-9 August 2004 Figure 2-3: DG834G T Rear Panel V iewed from left to right, the rear panel contains the following elements: • ADSL port for connecting the router to an ADSL line • Four Local Ethernet RJ-45 LA N ports for connecting the router to the local c[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-10 Introduction August 2004[...]

Connecting the Router to the Internet 3-1 August 2004 Chapter 3 Connecting the Router to the Internet This chapter describes how to set up the router on your Local Area Network (LAN) and connect to the Internet. It describes how to configu re your DG834G T 108 Mbps Super W ireless ADSL Router for Internet access using the Setup Wizard, or how to ma[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-2 Connecting the Router to the Internet August 2004 Each device such as a telephone, fax machine, answering machine, or caller ID display will require an ADSL microfilter . Note: Do not connect the DG834G T to the ADSL line through a microfilter unless the microfilter is a[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the Internet 3-3 August 2004 Internet Configuration Requirement s Depending on how your ISP set up your Internet account, y ou need one or more of these configuration parameters to connec t your router to the Internet: • V irtual Path Identifie[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-4 Connecting the Router to the Internet August 2004 ISP Multiplexing Method and V irtual Cir c uit Number: The default settings of your DG834G T 108 Mbps Super W ireless ADSL Router will work fine for most ISPs. However , some ISPs use a specific Multiplexing Method or a V[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the Internet 3-5 August 2004 Connecting the DG834G T to Y our LAN This section provides instruct ions for connecting the DG834G T Super W i reless ADSL Router. Note: The Resource CD included with your router contains an animated Installation Assi[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-6 Connecting the Router to the Internet August 2004 . Figure 3-4: Connecting an ADSL microf ilter and phone Note: T o use a one-line filter with a separate splitter , insert the splitter into the phone outlet, connect the one-line f ilter to the splitter , and connect the [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the Internet 3-7 August 2004 Figure 3-5: Connecting the DG834G T Super Wire less ADSL Router to an ADSL microfilter and phone c. Connect the Ethernet cable ( C) from your DG834G T’ s LAN port to the Ethernet adapter in your computer . 0HONE $3,[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-8 Connecting the Router to the Internet August 2004 Figure 3-6: Connectin g a computer to the DG834G T Super Wireless ADSL Router Note: The DG834G T Su per Wireless ADSL Router incorporates Auto Uplink TM technology . Each Ethernet LAN port will automatically se nse whethe[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the Internet 3-9 August 2004 3. L OG IN TO THE DG834G T. Note: Y our computer needs to be config ured for DHCP . For instructions on config uring for DHCP , please see Appendix C, “Preparing Y our Network” . a. Connect to the router by typing[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-10 Connecting the Router to the Intern et August 2004 Figure 3-9: Setup Wizard 4. C ONNECT TO THE I NTERNET The router is now properly attached to yo ur n etwork. Y ou are now ready to configure your router to connect to the Internet. There are two ways you can configure y[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the In te rn et 3-11 August 2004 Note: If instead of the Setup W izard menu, the main menu of the router’ s Configuration Manager as shown in Figure 3-15 appears, click the Setup W izard link in the upper left to bring up this menu. 2. Y ou mus[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-12 Connecting the Router to the Intern et August 2004 Figure 3-10: Setup W izard menu for PPPoE login account s Enter the PPPoE login user name and password. Wizard-Detected PPPoA Login Account Setup If the Setup W izard determines that your Internet service account uses a[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the In te rn et 3-13 August 2004 Figure 3-12: Setup W izard menu for Dynamic IP addre ss Click Apply to set Dynamic IP as the connection method. Wizard-Detected IP Over A TM Account Setup If the Setup W izard determines that your Intern et servic[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-14 Connecting the Router to the Intern et August 2004 4. Click the T est button to test your Internet connection. If the NETGEAR W eb site does not appear within one minute, refer to Chapter 8, “T roubleshooting” . Wizard-Detected Fixed IP (S t atic) Account Setup If t[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the In te rn et 3-15 August 2004 5. Click Apply to save the settings. 6. Click the T est button to test your Internet connection. If the NETGEAR W eb site does not appear within one minute, refer to Chapter 8, “T roubleshooting” . T esting Y [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-16 Connecting the Router to the Intern et August 2004 Figure 3-15: Basic Settings menu How to Perform Manual Configuration W e recommend that you start the manu al configuration from the Setup W izard: 1. Select your country and language. Lang uage choi ces are English, Fr[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the In te rn et 3-17 August 2004 • Internet Connection Does No t Require a Login 6. Usually the default ADSL Settings work fine for most ISPs and you can skip this st ep. If you have any problems with your connection, check the ADSL Settings. S[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-18 Connecting the Router to the Intern et August 2004 Note : Disabling NA T will reboot the router and re set all the DG834G T configuration settings to the factory default. Disable NA T only if yo u plan to install the DG834G T in a setting where you will be manually admi[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Connecting th e Rou te r to the In te rn et 3-19 August 2004 Internet Connection Does Note Require A Login 1. If your Internet connection does not require a login, select No a nd fill in the settings according to the instructions below . 2. Enter your Account Name (may also[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3-20 Connecting the Router to the Intern et August 2004 6. Router MAC Address: This section determines the Ethernet MAC addres s that will be used by the router on the Internet port. Some ISPs will register the Ethe rnet MAC address of the network interface card in your comp[...]

Wireless Configuration 4-1 August 2004 Chapter 4 Wireless Configuration This chapter describes how to configure the wireless features of your DG834G T 108 Mbps Super W ireless ADSL Router. Considerations for a Wireless Network In planning your wire less network, you sh ou ld consider the level of se curity required. Y ou shou ld also select the phy[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-2 Wireless Configuration August 2004 The time it takes to establish a wireless connec tion can vary depending on both your security settings and placement. WEP connections can take slightly longer to establish. Also, WEP encryption can consume mo re battery power on a note[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4-3 August 2004 • T urn Off the Broadcast of the W ireless Network Name SSID. If you disable broadcast of the SSID, only devices that have the correct SSID can connect. This nullifies wireless network ‘discovery’ feature of some products, such a[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-4 Wireless Configuration August 2004 Figure 4-2: Wire less Settings menu The following parameters are in the W ireless Settings menu: • Wir eless Network . — Name (SSID) . The Service Set ID, also known as the wireless network name. Enter a value of up to 32 alphanumer[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4-5 August 2004 Note: This value is case sen sitive. For example, Wi rel e s s is not the same as wireless . — Region . Select your region from the drop-down list. This field disp lays the region of operation for which the wireless interface is in t[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-6 Wireless Configuration August 2004 — Wir eless Isolation. If enabled, W ireless Stations will not be able to communicate with each other or with S tations on the wired netwo rk. This feature should normally be disabled. • Wir eless S tation Access List . — By defau[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4-7 August 2004 How to Set Up and T est B asic Wireless Connectivity Follow the instructions below to set up and te st basic wireless conne ctivity . Once you have established basic wireless connectivity , you can enable security settin gs appropriate[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-8 Wireless Configuration August 2004 5. Set the Channel. The default channel is 1 1. This field determines which operating frequency will be used. It should not be necessary to change the wireless channel unless you noti ce interference problems with another nearby wireles[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4-9 August 2004 Figure 4-4: Wire le ss Access Point settings Restricting Access to Y our Network by T urning Off Wireless Connectivity Y ou can completely turn off the wireless portion of the DG834G T. For example, if your notebook computer is used to[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-10 Wireless Configur ation August 2004 Figure 4-5. Wireless Access menu 3. Select the T urn Access Control On check box to enable restricting wireless computers by their MAC addresses. 4. If the wireless station is curre ntly connected to the networ k, you can select it fr[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4 -11 August 2004 6. Make sure the T urn Acces s Control On ch eck box is selected, then click Apply . Now , only devices on this list will be allowed t o wirelessly connect to the DG834G T. This prevents unauthorized access to your network. Choosing [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-12 Wireless Configur ation August 2004 • Automatic • Open System • Shared key Set your wireless adapter accord ing to the authentication sche me you choose for the DG834G T Super W ireless ADSL Router. Please refer to “Authentication and WEP Data Encryptio n” on [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Configuration 4 -13 August 2004 How to Configure WEP T o configure WEP data encr yption, follow these steps: 1. Log in to the DG834G T firewall at its default LAN address of http://192.168.0.1 with its default user name of adm in and default password of password , [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4-14 Wireless Configur ation August 2004 8. Click Apply to save your settings. How to Configure WP A-PSK Note : Not all wireless adapters support WP A. Furthe rmore, client software is required on the client. W indows XP and W indows 2000 with Servi ce Pack 3 do include the [...]

Protecting Your Network 5-1 August 2004 Chapter 5 Protecting Y our Network This chapter describes how to u se the basic firewall features of the DG834G T 108 Mbps Super W ireless ADSL Router to prote ct your network. Protecting Access to Y our DG834G T 108 Mbp s Super Wireless ADSL Router For security reasons, the router has its own user name and p[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-2 Protecting Yo ur Network August 2004 Figure 5-2: Set Pass word menu 3. T o change the passw ord, first enter the old p assword, and then enter the new password twice. 4. Click Apply to save your changes. Note: After changing the password, you will be required to log in a[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5-3 August 2004 Blocking Keywords, Sites, and Services The router prov ides a variety of options for bloc king Internet based content and communications services. W ith its content filtering feature, th e DG834G T Super W ireless ADSL Router prevents[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-4 Protecting Yo ur Network August 2004 Figure 5-3: Block Sites menu 3. T o enable keyword bloc kin g, select one of the following: • Per Schedule—to turn on keyword blocking according to the settings on the S c hedule page. • Always—to turn on keyword b locking all[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5-5 August 2004 7. Click Apply to save your settings. Firewall Rules Firewall rules are used to block or allow specific traffic passing through from one side of the router to the other . Inbound rules (W AN to LAN) restri ct access by outsiders to pr[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-6 Protecting Yo ur Network August 2004 • T o edit an existing rule, select its button on the left side of the table and click Edit. • T o delete an existing rule, select its button on the left side of the table and click Delete. • T o move an existing rule to a dif f[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5-7 August 2004 Figure 5-5: Rule example: A Local Public W eb Server The parameters are: •S e r v i c e From this list, select the application or serv ice to be allowed or blocked. The list already displays many common services, but you are not lim[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-8 Protecting Yo ur Network August 2004 • W AN Users These settings determine which packets are co vered by the rule, based on their source (W AN) IP address. Select the desired option: • Any — all IP addresses are covered by this rule. • Address range — if this o[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5-9 August 2004 Figure 5-6: Rule example: V ideoconference from Restricted Address es Considerations for Inbound Rules • If your external IP address is assigned dynamically by your ISP , the IP address may change periodically as the DHCP lease expi[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-10 Protecting Yo ur Networ k August 2004 Following is an application example of outbound rules: Outbound Rule Example: Blocking Inst ant Messenger If you want to block Instant Messenger usage by employees during working hours, you can create an outbound rul e to block that[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5 -1 1 August 2004 • LAN Users These settings determine which packets are co vered by the rule, based on their source LAN IP address. Select the desired option: • Any — all IP addresses are covered by this rule. • Address range — if this op[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-12 Protecting Yo ur Networ k August 2004 Figure 5-8: Rules t able with examples For any traffic attempting to pass through the fire wall, the packet informa tion is subjected to the rules in the order shown in the Rules T able, beg inning at the top and proceedin g to the [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5 -1 3 August 2004 How to Define Services 1. Log in to the router at its default LAN address of http://192.168.0.1 with its default User Name of admin , default password of password , or us ing whate ve r Password and LAN a ddress you have chosen for[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-14 Protecting Yo ur Networ k August 2004 Setting T imes and Scheduling Firewall Services The DG834G T Super W i reless ADSL Router uses the Network T ime Protocol (NTP) to obtain the current time and date from one of several Network T ime Se rvers on the Internet. How to S[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Protecting Your Network 5 -1 5 August 2004 Note: If your region uses Daylight Savings T ime , you must manually select Adjust for Daylight Savings T ime on the first day of Daylight Saving s T ime, and clear it at the end. Enabling Daylight Savings T ime will cause on e hou[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-16 Protecting Yo ur Networ k August 2004[...]

Managing Your Network 6-1 August 2004 Chapter 6 Managing Y our Network This chapter describes how to perform network management tasks with yo ur DG834G T 108 Mbps Super W ireless ADSL Router. Backing Up, Restoring, or Erasing Y our Settings The configuration settings of the DG834G T Su per W ireless ADSL Router are stored in a configuration file in[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-2 Managing Your Ne twork August 2004 4. Sto r e t h e .cfg file on a computer on your n etwork. How to Restore the Conf iguration from a File 1. Log in to the router at its default LAN address of http://192.168.0.1 with its default User Name of admin , default password of [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6- 3 August 2004 How to Upgrade the Router Firmware Note: NETGEAR reco mmends that you back up your configuration b efo re doing a firmware upgrade. After the upgrade is complete, you may need to rest ore your configuration settings. 1. Download and un[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-4 Managing Your Ne twork August 2004 Network Management Information The DG834G T provides a variety of status and usage information which is dis cussed below . V i ewing Router St atu s and Usage St atistics From the Main Menu, under Maintenance, sel ect Router Status to v[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6- 5 August 2004 Click the Show S tatistics button to disp lay router usage statistics, as shown in Figure 6-3 below: T able 6-1. Menu 3.2 - Router S tatus Field s Field Description Account Name The Host Name assigned to the router in the Basic Setting[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-6 Managing Your Ne twork August 2004 Figure 6-4: Router S tatistics scr een This screen shows the following statistics:. Click the Connection Status bu tton to display router conn ection status, as shown in Figure 6-5 and Figure 6-6 . T a ble 6-1. Router St atistics Fields[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6- 7 August 2004 Figure 6-5: Connection S tatu s scr een for Dynamic IP Clicking the Renew button updates the status information. This screen shows the following statistics: T able 6-1. Connection St atus Fields for Dynamic IP Field Description IP Addr[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-8 Managing Your Ne twork August 2004 An alternate view of the Connection Status screen is shown in Figure 6-6 belo w: Figure 6-6: Connection St atus screen for PPPoA Clicking the Renew button updates the status information. This screen shows the following statistics: T a b[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6- 9 August 2004 V i ewing Att ached Devices The Attached Devices menu contains a table of all IP devic es that the router ha s discovered on the local network. From the Main Menu of the browser interface, un der the Maintenance heading, select Attache[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-10 Managing Your Networ k August 2004 Figure 6-8: Security Logs menu Log entries are described in T able 6-1 below:[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6-11 August 2004 Log action buttons are described in Ta b l e 6 - 2 below: Selecting What Information to Log Besides the standard information listed above, you can choose to log additional info rmation. Those optional selections are as follows: • Att[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-12 Managing Your Networ k August 2004 Saving Log Files on a Server Y ou can choose to write the logs to a computer ru nning a syslog program. T o activate this feature, select to Broadcast on Lan or enter the IP address of the server where the Syslog file will be written. [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6-13 August 2004 Enabling Security Event E-mail Notification In order to receive logs and alerts by e-mail, you must provide your e- mail information in the E-mail subheading: Figure 6-9: E-mail menu • T urn e-mail notification on . Select this check[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-14 Managing Your Networ k August 2004 If the W eekly , Daily or Hourly option is selecte d and the log fills up before the specified period, the log is automatically e-mailed to the specified e-mail address. After the log is sent, it is cleared from the router’ s memory [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Managing Your Network 6-15 August 2004 Enabling Remote Management Using the Remote Manageme nt page , you can allow a user or users on the Internet to configure, upgrade and check the status of your DG834 G T 108 Mbps Super Wireless ADSL Router. Configuring Remote Managemen[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6-16 Managing Your Networ k August 2004 When accessing your router from the Internet, you will type your router's W AN IP address in your browser's Address (in IE) or Loc ation (in Netscape) box, follo wed by a colon (:) and the custom port number . For example, if[...]

Advanced Configuration 7-1 August 2004 Chapter 7 Advanced Configuration This chapter describes how to configure the adva nced features of your DG8 34G T 108 Mbps Super W ireless ADSL Router. Configuring Advanced Security The DG834G T 108 Mbps Super W ire less ADSL Router provides a varie ty of advanced features, such as: • Setting up a Demilitari[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-2 Advanced Configuration August 2004 Incoming traffic from the Internet is normally discarded by the router unless the traf fic is a response to one of your local comp uters or a service that you have configured in the Ports menu. Instead of discardin g this traffic, you c[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Advanced Configuration 7-3 August 2004 Connect Automatica lly , as Required Normally , this option should be en abled, so that an Internet conn ection will be made automatically , whenever Internet-bound traffic is detected. If this causes high connection costs, you can dis[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-4 Advanced Configuration August 2004 These addresses are part of the Internet Engineering T ask Force (IETF)-designated private address range for use in private networks, and should be suitable in most applications. If your network has a requirement to use a different IP a[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Advanced Configuration 7-5 August 2004 • RIP V ersion This controls the format and th e broadcasting met hod of the RIP packets that the router sends. It recognizes both formats when receiving. By default, this is set for RIP-1. — RIP-1 is universally supported . RIP-1 [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-6 Advanced Configuration August 2004 • An IP Address from the rang e you have defined • Subnet Mas k • Gateway IP Address is the router ’ s LAN IP address • Primary DNS Server , if you entered a Primary DNS address in the Basic Settings menu; otherwise, the route[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Advanced Configuration 7-7 August 2004 How to Configure LAN TCP/IP Settings 1. Log in to the router at its default LAN address of http://192.168.0.1 with its default User Name of admin , default password of password , or us ing whateve r User Name, Pa ssword and LAN address[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-8 Advanced Configuration August 2004 The router contains a client that can connect to a dynamic DNS service provider . T o use this feature, you must select a service provider and obtain an account with them. After you have configured your accoun t inform ation in the rout[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Advanced Configuration 7-9 August 2004 7. T ype the User Na me for your dynamic DNS account. 8. T ype the Password (or key) for your dynamic DNS account. 9. If your dynamic DNS provider allows the use of wildcards in resolving your URL, you can select the Use wildcards chec[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-10 Advanced C onfiguration August 2004 In this case you must define a static route, tell ing your router that 134.177.0.0 should be accessed through the ISDN router at 192.168. 0.1 00. The static route would look like Figure 7-6 . In this exam ple: • The Destination IP A[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Advanced Configuration 7-11 August 2004 3. T o add or edit a Static Route: a. Click the Edit button to open the Edit Menu, shown in Figure 7-6 . Figure 7-6: S tatic Route Entry and Edit Men u b. T ype a route name for this static route in the Route Name box under the table.[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-12 Advanced C onfiguration August 2004[...]

Troubleshooting 8-1 August 2004 Chapter 8 T roubleshooting This chapter gives information about troubleshooting your DG834G T 108 Mbps Super W ireless ADSL Router. After each problem description, instru ctions are provided to help you diagnose and solve the problem. For the common problem s listed, go to the section indicated. • Is the router on?[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-2 Troubleshooting August 2004 If a port’ s LED is lit, a link has been establis hed to the connected device. If a LAN port is connected to a 100 Mbps device, verify that the port’ s LED is green. If the port is 10 Mbps, the LED will be amber . If any of these condition[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Troubleshooting 8-3 August 2004 • Make sure that power is turned on to the conn ected hu b or workstation. • Be sure you are using the correct cable: — When connecting th e router ’ s W AN ADSL port , use the cable that was supplied with the DG834G T. T roubleshooti[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-4 Troubleshooting August 2004 • Click the Refresh or Reload button in the W e b browser . The changes may have occurred, b u t the W eb browser ma y be caching the old configuration. T roubleshooting the ISP Connection If your router is unable to access the Internet , yo[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Troubleshooting 8-5 August 2004 If disconnecting telephon es does not result in a green W AN LED the problem may be one of the following: • Check that the telephone company has made the connection to your line and tested it. • V erify that you a re connected to the co r[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-6 Troubleshooting August 2004 • Y our ISP only allows one Ethernet MAC address to connect to Internet, and may check for your computer ’ s MAC address. In this case: Inform your ISP that yo u have bought a new network device, and ask them to use the ro uter ’ s MAC a[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Troubleshooting 8-7 August 2004 A DNS server is a host on the Internet that translates Interne t names (such as www addresses) to numeric IP addresses. T ypically your ISP will provide the addresses of one or two DNS servers for your use. If you ent ered a DNS address durin[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-8 Troubleshooting August 2004 • W rong phys ical co nnections — Make sure the LAN port LED is on. If the LED is of f, follow the instructions in “LAN or W AN Port LEDs Not On” on page 8-2 . — Check that the corresp onding Link LEDs are on for your network interfa[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Troubleshooting 8-9 August 2004 Restoring the Default Co nfiguration and Password This section explains how to restore the fact ory default configuratio n settings, changing the router ’ s administration password to password and the IP address to 192.168.0.1. Y ou can era[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-10 Troubleshooting August 2004[...]

Technical Specifications A-1 August 2004 Appendix A T echnical S pecifications This appendix provides techni cal specifications for the DG834 G T 108 Mbps Super W ireless ADSL Router. Network Protocol and St andards Compatibility Data and Routing Protocols: TCP/IP , RIP-1, RI P-2, DHCP , PPP over Ethernet (PPPoE) or PPP over A TM (PPPoA), RFC 1483 [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router A-2 T echnical Specifications August 2004 Electromagnetic Emissions Meets requirements of: FCC Part 15 Class B VCCI Class B EN 55 022 (CISPR 22 ), Class B Interface S p ecifications LAN: 10BASE-T or 100BASE-Tx, RJ-45 W AN: ADSL, RJ-1 1, pins 2 and 3 T1.413, G .DMT , G .Lite [...]

Network and Routing Basics B-1 August 2004 Appendix B Network and Routing Basics This chapter provides an overview of IP networks and routing. Related Publications As you read this document, you may be dire cte d to various RFC documents for further information. An RFC is a Request For Comment (RFC) published by the Internet En gineering T ask Forc[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-2 Network and Routing Basics August 2004 Routing Information Protocol One of the protocol s used b y a rout er to b uild an d maintain a picture of the network is the Routing Information Protocol (RIP). Us ing RIP , routers periodically update one another an d check for ch[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-3 August 2004 Figure 8-1: Three Main Add ress 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 eigh t-bit network number and a 24-bit node number . Class A addre[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-4 Network and Routing Basics August 2004 This addressing structure allows IP addresses to uniquely identify each phys ical network and each node on each ph ysical network . For each unique value of the network portion of the address, the base address of the range (host add[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-5 August 2004 Subnet addressing al lows us to split one IP network ad dress into smaller multiple physical networks known as sub networks. Some of the node numbers are used as a su bnet number instead. A Class B address gives us 16 bits of node [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-6 Network and Routing Basics August 2004 The following table di splays several common netm ask values in both the dotted-decimal and the masklength formats. NETGEAR strongly recommends that you configur e all hosts on a LAN se gment to use the same netmask for the followin[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-7 August 2004 When a device broadcasts to its segment neighb ors, it uses a destination address of the local network address with all ones for the host address. In order for this schem e to work, all de vices on the segment must agree on which b[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-8 Network and Routing Basics August 2004 Figure 8-3: Sing le IP Address Operation Using NA T This scheme offers t he additional benefit of firewall-like protection because the internal LAN addresses are not available to the Internet thro ugh the translated connection. All [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-9 August 2004 Related Document s The station with the correct IP address responds with its own MAC address directly to the sending device. The receivin g station provides the tr ansmitting station with the required destination MAC address. The I[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-10 Network and Routing Basi cs August 2004 The DG834G T Super W ireless ADSL Router also fu nctions as a DHCP client when connecting to the ISP . The router can automatically obtain an IP address, subnet mask, DNS server addresses , and a gateway address if the ISP provide[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-11 August 2004 Denial of Service Att ack A hacker may be able to prevent your network from operating or communicating by launching a Denial of Service (DoS) attack. Th e method used for such an att ack can be as simple as merely flooding your si[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-12 Network and Routing Basi cs August 2004 10 ft. (3 m) from the wall outlet to the desktop device The patch panel and other connecting hardware must meet the requirements for 100 Mbps operation (Category 5 ). Only 0.5 inch (1.5 cm) o f untwist in the wire pa ir is allowed[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Network and Routing Basics B-13 August 2004 Figure B-2: Crossover T wisted-Pair Cable Figure B-3: Category 5 UTP Cable with Male RJ -4 5 Plug at Each End Note : Flat “silver satin” tele phone cable may have the same RJ-45 pl ug. However , using tele phone cable results [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router B-14 Network and Routing Basi cs August 2004 When connecting a PC to a PC, or a hub port to another hub port, the transmit pair must be exchanged with the receive pair . This exchange is done by one of two mechanisms. Mo st hubs provide an Uplink switch which w ill exchange [...]

Preparing Your Netwo rk C-1 August 2004 Appendix C Prep aring Y our Network This appendix describes how to prepare your ne twork to connect to the Internet through the DG834G T 108 Mbps Super W ireless ADSL Router and how to verify the readiness of broadband Internet service from an Inte rnet service provider (ISP). Prep aring Y our Computers for T[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-2 Preparing Yo ur Networ k August 2004 In your IP network, each PC and the router must be assigned a unique IP addresses. Each PC must also have certain other IP configuratio n informa tion such as a subnet mask (netmask), a domain name server (DNS) address, and a de fault[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-3 August 2004 Y ou must have an Ethernet adapter , the TCP/IP protocol, and Client for Microsoft Networks. If you need to install a ne w adapter , follow these steps: a. Click the Add button. b. Select Adapter , and then click Add. c. Select the ma[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-4 Preparing Yo ur Networ k August 2004 If you need Client for Micro soft Networks: a. Click the Add button. b. Select Client, and then click Ad d. c. Select Microsoft. d. Select Client for Microsoft Networks, and then click OK. 3. Restart your PC for the changes to take ef[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-5 August 2004 V erify the following settings as shown: • Client for Microsoft Network exists • Ethernet adapter is present • TCP/IP is present • Primary Network Logon is set to W indows logon Click on the Properties button. The following TC[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-6 Preparing Yo ur Networ k August 2004 Selecting the Windows’ Internet Access Method 1. On the W indows taskbar , click the Start button, point to Settings, and th en click Control Panel. 2. Double-click the Internet Options icon. 3. Select “I want to set up my Int ern[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-7 August 2004 2. Ty p e winipcfg , and then click OK. The IP Configuration window opens, which lists (a mong other things), your IP address, subnet mask, and default gateway . 3. From the drop-down box, select your Ethernet adapter . The window is [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-8 Preparing Yo ur Networ k August 2004 DHCP Configuration of TCP/IP in Windows XP , 2000, or NT4 Y ou will find there are many similarities in th e procedures for different W indows systems when using DHCP to configure TCP/IP . The following steps will walk you through the[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-9 August 2004 • Now you should be at the Local Area Network Connection S tatus window . This box displays the conn ection status, duration, speed, and activity statistics. • Administrator logon acce ss rights are needed to use this window . •[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-10 Preparin g Your Network August 2004 DHCP Configuration of TC P/IP in Windows 2000 Once again, after you have installed the network card, TCP/IP for W indows 2000 is configur ed . TCP/IP should be added by de fault and set to DHCP without your having to configure it. How[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-11 August 2004 • Click on the My Network Places icon on the W indows desktop. This will bring up a window called Network and Dial-up Connectio ns. • Right click on Local Ar ea Connection a nd select Properties . •T h e Local Area Connection P[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-12 Preparin g Your Network August 2004 • W ith Internet Protocol (TCP/IP) selected, click on Properties to open the Internet Protocol (TCP/IP) Propert ies dialogue box. • V erify that • Obtain an IP address automatically is selected. • Obtain DNS server address aut[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-13 August 2004 DHCP Configuration of TCP/IP in Windows NT4 Once you have installed the network card, you need to configure the TCP /IP environment for W indows NT 4.0. Follow this procedu re to configure TCP/IP with DHCP in W indows NT 4.0. • Cho[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-14 Preparin g Your Network August 2004 • Highlight the TCP/IP Pr otocol in the Network Protocols bo x, and click on the Properties button.[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-15 August 2004 V erifying TCP/IP Properties fo r Windows XP , 2000, and NT4 T o check your PC’ s TCP/IP configuration: 1. On the W indows taskbar, cl ick the Start button, and then click Run. The Run window opens. 2. Ty p e cmd and then click OK.[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-16 Preparin g Your Network August 2004 • The default gateway is 192.168.0.1 4. Ty p e exit Configuring the Macintos h for TCP/IP Networking Beginning with Macintosh Operating System 7 , TCP/ IP is already installed on the Macintosh. On each networked Macintosh, yo u need[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-17 August 2004 2. If not already selected, select Built- in Ethernet in the Configure list. 3. If not already selected, Select Using DHCP in the TCP/IP tab. 4. Click Save. V erifying TCP/IP Properties for Macintosh Computers After your Macintosh is[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-18 Preparin g Your Network August 2004 V erifying the Readiness of Y our Internet Account For broadband access to the Internet, you need to contract with an Internet service provider (ISP) for a single-user Internet access account using a cable modem or DSL mode m. This mo[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-19 August 2004 • An IP address and subnet mask • A gateway IP address, which is the address of the ISP’ s router • One or more domain name server (DNS) IP addresses • Host name and domain suf fix For example, your account’ s full server[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-20 Preparin g Your Network August 2004 If an IP address appears under Installed Gatewa ys, write down the address. This is the ISP’ s gateway address. Select the address and then click Remove to remove the gateway address. 6. Select the DNS Configuration tab. If any DNS [...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Preparing Your Netwo rk C-21 August 2004 Rest arting the Network Once you have set up your co mputers to work with the router , you must reset the network for the devices to be able to communicat e correctly . Restart any computer that is connec ted to the firewall. After c[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-22 Preparin g Your Network August 2004[...]

Wireless Networking Basics D-1 August 2004 Appendix D Wireless Networking Basics This chapter provides an overview of W ireless networking. Wireless Networking Overview The DG834G T Super W ireless ADSL Router conf orms to the Institute of Electrical and Electronics Engineers (IEEE) 802.1 1b and 802.1 1g standards for wireless LANs (WLANs). On an 8[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-2 Wireless Networking Basics August 2004 Ad Hoc Mode (Peer- to-Peer Workgroup) In an ad hoc network, computers are brought together as needed; thus, there is no structure or fixed points to the network - each node can g enerally communicate with any ot her node . Th ere is[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-3 August 2004 • Shar ed Key . W ith Shared Key authentication, on ly those PCs that possess the correct authentication key can join the ne twork. By default, IEEE 802.1 1 wireless devices operate in an Open System network. W ired Equivalent Pr[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-4 Wireless Networking Basics August 2004 2. The access point auth enticates the station. 3. The station associates with the access point and joins the network. This process is illustrated below . Figure D-1: Open system authentica tion Shared Key Authentication The followi[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-5 August 2004 Figure D-2: Shared key auth ent ication Overview of WEP Parameters Before enabling WEP on an 80 2.11 n e twork, you must first consider what type of encry p tion you require and the key size you wa nt to use. T y pically , there ar[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-6 Wireless Networking Basics August 2004 Key Size The IEEE 802.1 1 standard su pports two types of WEP en cryption: 40-bit and 128-bit. The 64-bit WEP data encryption meth od allows for a five-character (40-bit) input. Additionally , 24 factory-set bits are added to the fo[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-7 August 2004 WEP Configuration Options The WEP settings must match on a ll 802.1 1 devices that are within the same wireless network as identified by the SSID. In general, if your mobile clients will roam between access points, then all of the [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-8 Wireless Networking Basics August 2004 Note: The available channels supported by the wireless products in va rious countries are dif ferent. For example, Channels 1 to 1 1 are supported in the U.S. and Canada, and Channels 1 to 13 are supported in Europe and Australia. T[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-9 August 2004 The IEEE introduced the WEP as an optional security measure to secure 802.1 1b (W i-Fi) WLANs, but inherent weaknesses in the standard soon became obvious. In response to this situation, the W i-Fi Alliance announced a new security[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-10 Wireless Networking B asics August 2004 For 802.1 1, WEP encryption is optional. For WP A, encryption using T emporal Key Integrity Protocol (TKIP) is required. TK IP replaces WEP with a new encryp tion algorithm that is stronger than the WEP algorithm, but that uses th[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-11 August 2004 The strength of WP A comes from an integrated sequence of operations that encompass 802.1X/ EAP authentication and sophisticated key mana gement and encryption techn iques. Its major operations include: • Network security capabi[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-12 Wireless Networking B asics August 2004 WP A Authentication: Enterprise-level User Authentication via 802.1x/EAP and RADIUS Figure D-3: WP A Overview IEEE 802.1x offers an ef fective framework for authenticating and controlling user traffic to a protected network, as we[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-13 August 2004 Figure D-4: 802.1x A uthenticat ion Sequenc e The AP sends Beacon Frames with WP A informatio n element to the stations in the service set. Information ele ments include the required authentication method (802.1x or Pre-shared key[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-14 Wireless Networking B asics August 2004 3. The client sends an EAP-response packet containing the identity to the authentication server . The access point responds by enabling a port fo r passing only EAP packets from the client to an authentication server located on th[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-15 August 2004 T emporal Key Integrity Protocol (TKIP) WP A uses TKIP to provide important data encr yption en hancements including a per-packet key mixing function, a message integrity check (M IC) named Michael , an extended initialization vec[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-16 Wireless Networking B asics August 2004 Is WP A Perfect? WP A is not without its vulnerabiliti es. Specifically , it is susceptible to denial of service (DoS) attacks. If the access point receives two da ta pa ckets that fail the mes sag e integrity code (MIC) within 60[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Wireless Networking Basics D-17 August 2004 • The new WP A information element T o advertise their support of WP A, wireless APs send the beac on frame with a ne w 802.1 1 WP A information element that contains the wire less AP's security configuration (en cr ypti on[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router D-18 Wireless Networking B asics August 2004 Changes to Wireless Client Programs W ireless client programs must be updated to pe rmit the configuration of WP A authentication (and preshared key) and the n e w WP A encryption algorithms (TKIP and the optional AES component). [...]

Glossary -1 August 2004 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. 802.1 1b IEEE specification for wireless networking at 1 1 Mbps using direct-sequence spread-spectrum (DSSS) technol ogy and operating in the unlicensed[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router -2 Glossary August 2004 Cat 5 Category 5 unshield ed twisted pair (UTP) cablin g. An Ethernet n etwork operating at 10 Mbi ts/second (10BASE-T) will often tolerate low quality cables, but at 100 Mbits/second (10BAS E-Tx) the cable must be rated as Category 5, or Cat 5 or Cat[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Glossary -3 August 2004 IP Address A four-byte number uniquely defining each host on the Internet. Ranges of addresses are assigned by Internic, an or ganization f ormed for this purpose. Usually written in dotted-d ecimal notation with periods separ a ting the bytes (for e[...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router -4 Glossary August 2004 Netmask A number that explains which part of an IP add ress comprises the network address and which part is the host address on that network. It can be expressed in dotted-decimal notation or as a number appended to the IP address. For example, a 28-b[...]

Reference Manual for the Model DG8 34GT 108 Mbps Super Wireless ADSL Router Glossary -5 August 2004 router A device that for wards data between ne tworks. An IP router forwards data based on IP source and destination addresses. Routing Information Protocol A protocol in which routers periodically exchange in formation with one another so that they [...]

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router -6 Glossary August 2004 Windows Internet Naming Service WINS. W indows Internet Naming Servi ce is a server process for resolving W indows-based computer names to IP addresses. If a remote network contains a WINS server , your Windows PCs can gather information from that WIN[...]