Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router NETGEAR, Inc.
© 2004 by NETGEAR, Inc. All rights reserved. August 2004. Trademarks NETGEAR is a trademark of Netgear, Inc. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product names are registered trademarks or trademarks of their respective holders. Statement of Conditions In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice.
Bestätigung des Herstellers/Importeurs Es wird hiermit bestätigt, daß das DG834GT 108 Mbps Super Wireless ADSL Router gemäß der im BMPT-AmtsblVfg 243/1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung.
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Contents Chapter 1 About This Guide Audience, Conventions, Scope ......................................................................................1-1 How to Use this Manual ..................................................................................................1-2 How to Print this Manual .................................................................................................1-3 Chapter 2 Introduction About the Router .................................................................
Record Your Internet Connection Information ..........................................................3-3 Connecting the DG834GT to Your LAN ..........................................................................3-5 How to Connect the Router ......................................................................................3-5 Auto-Detecting Your Internet Connection Type ............................................................3-10 Wizard-Detected PPPoE Login Account Setup .........................
How to Change the Built-In Password .....................................................................5-1 Changing the Administrator Login Timeout ..............................................................5-2 Configuring Basic Firewall Services ...............................................................................5-2 Blocking Keywords, Sites, and Services ..................................................................5-3 How to Block Keywords and Sites ....................................
Enabling Security Event E-mail Notification .................................................................6-13 Running Diagnostic Utilities and Rebooting the Router ................................................6-14 Enabling Remote Management ....................................................................................6-15 Configuring Remote Management .........................................................................6-15 Chapter 7 Advanced Configuration Configuring Advanced Security ....
Troubleshooting PPPoE or PPPoA ..........................................................................8-6 Troubleshooting Internet Browsing ..........................................................................8-6 Troubleshooting a TCP/IP Network Using the Ping Utility ..............................................8-7 Testing the LAN Path to Your Router .......................................................................8-7 Testing the Path from Your Computer to a Remote Device ...................
Appendix C Preparing Your Network Preparing Your Computers for TCP/IP Networking ....................................................... C-1 Configuring Windows 95, 98, and Me for TCP/IP Networking ....................................... C-2 Installing or Verifying Windows Networking Components ....................................... C-2 Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me C-4 Selecting the Windows’ Internet Access Method ......................................
Overview of WEP Parameters ................................................................................ D-5 Key Size .................................................................................................................. D-6 WEP Configuration Options .................................................................................... D-7 Wireless Channels ......................................................................................................... D-7 WPA Wireless Security .......
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Chapter 1 About This Guide Thank you for purchasing the NETGEAR™ DG834GT 108 Mbps Super Wireless ADSL Router. Audience, Conventions, Scope This reference manual assumes that the reader has basic-to-intermediate computer and Internet skills. However, basic computer network, Internet, firewall, and networking technology tutorial information is provided in the Appendices. This guide uses the following typographical conventions: Table 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router How to Use this Manual The HTML version of this manual includes these features. 2 1 3 Figure 1 -1: HTML version of this manual 1. Left pane. Use the left pane to view the Contents, Index, Search, and Favorites tabs. To view the HTML version of the manual, you must have a version 4 or later browser with JavaScript enabled. 2. Toolbar buttons. Use the toolbar buttons across the top to navigate, print pages, and more.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router How to Print this Manual To print this manual you can choose one of the following several options, according to your needs. • Printing a “How To” Sequence of Steps in the HTML View. Use the Print button on the upper right of the toolbar to print the currently displayed topic.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 1-4 About This Guide August 2004
Chapter 2 Introduction This chapter describes the features of the NETGEAR DG834GT 108 Mbps Super Wireless ADSL Router. The DG834GT Super Wireless ADSL Router is a combination of a built-in ADSL modem, router, 4-port switch, firewall, and up to 108 Mbps wireless access point that enables your entire network to safely share an Internet connection that otherwise is used by a single computer.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Key Features The DG834GT Super Wireless ADSL Router provides the following features: • 802.11g wireless networking, with the ability to operate in Auto 108 Mbps mode, 108 Mbps “turbo-g” only, the 802.11b+g modes, 802.11g-only, and 802.11b-only.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router — 802.11b+g modes — 802.11g-only — 802.11b-only • 64-bit and 128-bit WEP encryption security. • WEP keys can be generated manually or by passphrase. • Wireless access can be restricted by MAC address. • Wireless network name broadcast can be turned off so that only devices that have the network name (SSID) can connect.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Smart Wizard The router automatically senses the type of Internet connection, asking you only for the information required for your type of ISP account. • Remote management The router allows you to log in to the Web management interface from a remote location via the Internet.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Classical IP (RFC 1577) Some Internet service providers, in Europe for example, use Classical IP in their ADSL services. In such cases, the router is able to use the Classical IP address from the ISP. • PPP over Ethernet (PPPoE) PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an ADSL connection by simulating a dial-up connection.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The router incorporates Auto UplinkTM technology. Each local Ethernet port will automatically sense whether the Ethernet cable plugged into the port should have a ‘normal’ connection such as to a computer or an ‘uplink’ connection such as to a switch or hub. That port will then configure itself to the correct configuration.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Power Test Wireless Internet LAN Figure 2-2: DG834GT Front Panel You can use the LEDs to verify various conditions. Table 2-1 lists and describes each LED on the front panel of the router. These LEDs are green when lit.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table 2-1. LED Descriptions Label Activity Description Power On Off Power is supplied to the router. Power is not supplied to the router. Test On Off The system is initializing. The system is ready and running. Wireless On Off Indicates that the Wireless port is initialized. The Wireless Access Point is turned off. Internet Blink -- Amber On -- Green Blink -- Green Indicates ADSL training.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router ADSL Internet LAN Power Reset Wireless Figure 2-3: DG834GT Rear Panel Viewed 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 LAN ports for connecting the router to the local computers • Factory Default Reset push button • DC power in • Wireless antenna Introduction 2-9 August 2004
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2-10 Introduction 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 configure your DG834GT 108 Mbps Super Wireless ADSL Router for Internet access using the Setup Wizard, or how to manually configure your Internet connection. What You Need Before You Begin You need to prepare the following before you can establish an Internet connection through your router: 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Each device such as a telephone, fax machine, answering machine, or caller ID display will require an ADSL microfilter. Note: Do not connect the DG834GT to the ADSL line through a microfilter unless the microfilter is a combination microfilter/splitter specifically designed for this purpose. Doing so will prevent the built-in ADSL modem in the DG834GT from establishing a connection to the Internet.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Internet Configuration Requirements Depending on how your ISP set up your Internet account, you need one or more of these configuration parameters to connect your router to the Internet: • Virtual Path Identifier (VPI)/Virtual Channel Indentifier (VCI) parameters • Multiplexing Method • Host and Domain Names • ISP Login Name and Password • ISP Domain Name Server (DNS) Addresses • Fixed or Static IP Address Where Do I Get
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router ISP Multiplexing Method and Virtual Circuit Number: The default settings of your DG834GT 108 Mbps Super Wireless ADSL Router will work fine for most ISPs. However, some ISPs use a specific Multiplexing Method or a Virtual Circuit Number for either the Virtual Path Identifier (VPI) or Virtual Channel Identifier (VCI).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Connecting the DG834GT to Your LAN This section provides instructions for connecting the DG834GT Super Wireless ADSL Router. Note: The Resource CD included with your router contains an animated Installation Assistant to help you through this procedure. How to Connect the Router There are four steps to connecting your firewall: 1. Install ADSL filters on the phone lines. 2. Connect the router to the ADSL filter. 3.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router . $3, 0HONE ,INE A Figure 3-4: Connecting an ADSL microfilter and phone Note: To use a one-line filter with a separate splitter, insert the splitter into the phone outlet, connect the one-line filter to the splitter, and connect the phone to the filter. 2. CONNECT THE DG834GT TO THE ADSL FILTER. Note: Improperly connecting a filter to your DG834GT Super Wireless ADSL Router will block your ADSL connection. a.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router $3, 0HONE ,INE B Figure 3-5: Connecting the DG834GT Super Wireless ADSL Router to an ADSL microfilter and phone c. Connect the Ethernet cable (C) from your DG834GT’s LAN port to the Ethernet adapter in your computer.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C $3, 0HONE ,INE &RPSXWHU *DWHZD\ Figure 3-6: Connecting a computer to the DG834GT Super Wireless ADSL Router Note: The DG834GT Super Wireless ADSL Router incorporates Auto UplinkTM technology. Each Ethernet LAN port will automatically sense whether the cable plugged into the port should have a 'normal' connection (for example, connecting to a computer) or an 'uplink' connection (for example, connecting to a switch or hub).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3. LOG IN TO THE DG834GT. Note: Your computer needs to be configured for DHCP. For instructions on configuring for DHCP, please see Appendix C, “Preparing Your Network”. a. Connect to the router by typing http://192.168.0.1 in the address field of Internet Explorer or Netscape® Navigator. Figure 3-7: Connect to the router A login window opens as shown below: Figure 3-8: Login window b.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 3-9: Setup Wizard 4. CONNECT TO THE INTERNET The router is now properly attached to your network. You are now ready to configure your router to connect to the Internet. There are two ways you can configure your router to connect to the Internet: a. Let the DG834GT auto-detect the type of Internet connection you have and configure it. See “Auto-Detecting Your Internet Connection Type” on page 3-10 for instructions. b.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: If instead of the Setup Wizard menu, the main menu of the router’s Configuration Manager as shown in Figure 3-15 appears, click the Setup Wizard link in the upper left to bring up this menu. 2. You must select a country and language. Language choices are English, French, German, and Italian. After you change the language, the remaining setup screens change to the language of your choice. 3.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 3-10: Setup Wizard menu for PPPoE login accounts Enter the PPPoE login user name and password. Wizard-Detected PPPoA Login Account Setup If the Setup Wizard determines that your Internet service account uses a login protocol such as PPP over ATM (PPPoA), you will be directed to the PPPoA page shown in Figure 3-11 below: Figure 3-11: Setup Wizard menu for PPPoA login accounts Enter your login user name and password.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 3-12: Setup Wizard menu for Dynamic IP address Click Apply to set Dynamic IP as the connection method. Wizard-Detected IP Over ATM Account Setup If the Setup Wizard determines that your Internet service account uses IP over ATM Classical IP assignment (RFC1577), you will be directed to the page shown in Figure 3-13 below: Figure 3-13: Setup Wizard menu for IP over ATM (Classical IP) address 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4. Click the Test button to test your Internet connection. If the NETGEAR Web site does not appear within one minute, refer to Chapter 8, “Troubleshooting”. Wizard-Detected Fixed IP (Static) Account Setup If the router determines that your Internet service account uses Fixed IP assignment, you will be directed to the page shown in Figure 3-14 below: Figure 3-14: Setup Wizard menu for Fixed IP address 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5. Click Apply to save the settings. 6. Click the Test button to test your Internet connection. If the NETGEAR Web site does not appear within one minute, refer to Chapter 8, “Troubleshooting”. Testing Your Internet Connection After completing the Internet connection configuration, your can test your Internet connection. Log in to the router, then, from the Basic Settings link in the Setup menu, click the Test button.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router ISP Does Not Require Login ISP Does Require Login Figure 3-15: Basic Settings menu How to Perform Manual Configuration We recommend that you start the manual configuration from the Setup Wizard: 1. Select your country and language. Language choices are English, French, German, and Italian. After you change the language, the remaining setup screens change to the language of your choice. 2.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • 6. Internet Connection Does Not Require a Login Usually the default ADSL Settings work fine for most ISPs and you can skip this step. If you have any problems with your connection, check the ADSL Settings. See “ADSL Settings” on page 3-20 for more details. Internet Connection Requires Login and Uses PPPoE 1. If your Internet connection does require login, select Yes and fill in the settings according to the instructions below.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: Disabling NAT will reboot the router and reset all the DG834GT configuration settings to the factory default. Disable NAT only if you plan to install the DG834GT in a setting where you will be manually administering the IP address space on the LAN side of the router. Internet Connection Requires Login and Uses PPPoA 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Internet Connection Does Note Require A Login 1. If your Internet connection does not require a login, select No and fill in the settings according to the instructions below. 2. Enter your Account Name (may also be called Host Name) and Domain Name. These parameters may be necessary to access your ISP’s mail or news servers. 3. Internet IP Address: 4.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 6. Router MAC Address: This section determines the Ethernet MAC address that will be used by the router on the Internet port. Some ISPs will register the Ethernet MAC address of the network interface card in your computer when your account is first opened. They will then only accept traffic from the MAC address of that computer. This feature allows your router to masquerade as that computer by “cloning” its MAC address.
Chapter 4 Wireless Configuration This chapter describes how to configure the wireless features of your DG834GT 108 Mbps Super Wireless ADSL Router. Considerations for a Wireless Network In planning your wireless network, you should consider the level of security required. You should also select the physical placement of your router in order to maximize the network speed. For further information, refer to Appendix D, “Wireless Networking Basics”.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The time it takes to establish a wireless connection can vary depending on both your security settings and placement. WEP connections can take slightly longer to establish. Also, WEP encryption can consume more battery power on a notebook computer. Implement Appropriate Wireless Security Note: Indoors, computers can connect over 802.11g wireless networks at a maximum range of up to 300 feet.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • • Turn Off the Broadcast of the Wireless 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 as Windows XP, but the data is still exposed. WEP. Wired Equivalent Privacy (WEP) data encryption provides data security.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 4-2: Wireless Settings menu The following parameters are in the Wireless Settings menu: • Wireless Network. — Name (SSID). The Service Set ID, also known as the wireless network name. Enter a value of up to 32 alphanumeric characters. The same Name (SSID) must be assigned to all wireless devices in your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: This value is case sensitive. For example, Wireless is not the same as wireless. — Region. Select your region from the drop-down list. This field displays the region of operation for which the wireless interface is intended. It may not be legal to operate the router in a region other than the region shown here. — Channel. This field determines which operating frequency will be used.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router — Wireless Isolation. If enabled, Wireless Stations will not be able to communicate with each other or with Stations on the wired network. This feature should normally be disabled. • Wireless Station Access List. — By default, any wireless computer that is configured with the correct wireless network name or SSID will be allowed access to your wireless network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table 4-1. Field Wireless Security Options Description WPA-PSK WPA Pre-Shared-Key uses a pre-shared key to perform the authentication and generate (Wi-Fi Protected the initial data encryption keys. Then, it dynamically varies the encryption key. For a full Access explanation of WPA, see “WPA Wireless Security” on page D-8. Pre-Shared Key) Note: Not all wireless adapters support WPA.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5. Set the Channel. The default channel is 11. This field determines which operating frequency will be used. It should not be necessary to change the wireless channel unless you notice interference problems with another nearby wireless router or access point. Select a channel that is not being used by any other wireless networks within several hundred feet of your firewall.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 4-4: Wireless Access Point settings Restricting Access to Your Network by Turning Off Wireless Connectivity You can completely turn off the wireless portion of the DG834GT. For example, if your notebook computer is used to wirelessly connect to your router and you take a business trip, you can turn off the wireless portion of the router while you are traveling.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 4-5. Wireless Access menu 3. Select the Turn Access Control On check box to enable restricting wireless computers by their MAC addresses. 4. If the wireless station is currently connected to the network, you can select it from the Available Wireless Stations list. Click Add to add the station to the Trusted Wireless Stations list. 5.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: If you are configuring the router from a wireless computer whose MAC address is not in the Trusted Wireless Stations list, and you select Trusted Wireless Stations only, you will lose your wireless connection when you click Apply. You must then access the router from a wired computer to make any further changes. 6. Make sure the Turn Access Control On check box is selected, then click Apply.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • • Automatic Open System Shared key Note: The authentication scheme is separate from the data encryption. You can choose an authentication scheme which requires a shared key but still leave the data transmissions unencrypted. If you require strong security, use both the Shared Key and WEP encryption settings. Set your wireless adapter according to the authentication scheme you choose for the DG834GT Super Wireless ADSL Router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router How to Configure WEP To configure WEP data encryption, follow these steps: 1. Log in to the DG834GT firewall at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever LAN address and password you have set up. 2. Click the Wireless Settings link in the main menu of the DG834GT router. 3. Go to the Security Encryption portion of the page: Figure 4-7.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8. Click Apply to save your settings. Note: When configuring the router from a wireless computer, if you configure WEP settings, you will lose your wireless connection when you click Apply. You must then either configure your wireless adapter to match the router WEP settings or access the router from a wired computer to make any further changes. How to Configure WPA-PSK Note: Not all wireless adapters support WPA.
Chapter 5 Protecting Your Network This chapter describes how to use the basic firewall features of the DG834GT 108 Mbps Super Wireless ADSL Router to protect your network. Protecting Access to Your DG834GT 108 Mbps Super Wireless ADSL Router For security reasons, the router has its own user name and password. Also, after a period of inactivity for a set length of time, the administrator login will automatically disconnect.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 5-2: Set Password menu 3. To change the password, first enter the old password, 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 again to continue the configuration. If you have backed up the router settings previously, you should do a new backup so that the saved settings file includes the new password.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Blocking Keywords, Sites, and Services The router provides a variety of options for blocking Internet based content and communications services. With its content filtering feature, the DG834GT Super Wireless ADSL Router prevents objectionable content from reaching your PCs. The router allows you to control access to Internet content by screening for keywords within Web addresses.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 5-3: Block Sites menu 3. To enable keyword blocking, select one of the following: • Per Schedule—to turn on keyword blocking according to the settings on the Schedule page. • Always—to turn on keyword blocking all of the time, independent of the Schedule page. Enter a keyword or domain in the Keyword box, click Add Keyword, then click Apply.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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 (WAN to LAN) restrict access by outsiders to private resources, selectively allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN) determine what outside resources local users can have access to.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • • To edit an existing rule, select its button on the left side of the table and click Edit. To delete an existing rule, select its button on the left side of the table and click Delete. To move an existing rule to a different position in the table, select its button on the left side of the table and click Move. At the script prompt, enter the number of the desired new position and click OK.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 5-5: Rule example: A Local Public Web Server The parameters are: • Service From this list, select the application or service to be allowed or blocked. The list already displays many common services, but you are not limited to these choices. Use the Services menu to add any additional services or applications that do not already appear. • Action Choose how you want this type of traffic to be handled.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • WAN Users These settings determine which packets are covered by the rule, based on their source (WAN) IP address. Select the desired option: • Any — all IP addresses are covered by this rule. • Address range — if this option is selected, you must enter the Start and Finish fields. • Single address — enter the required address in the Start field. Log You can select whether the traffic will be logged.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 5-6: Rule example: Videoconference from Restricted Addresses 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 expires. Consider using the Dynamic DNS feature in the Advanced menu so that external users can always find your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Following is an application example of outbound rules: Outbound Rule Example: Blocking Instant Messenger If you want to block Instant Messenger usage by employees during working hours, you can create an outbound rule to block that application from any internal IP address to any external address according to the schedule that you have created in the Schedule menu.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • • LAN Users These settings determine which packets are covered 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 option is selected, you must enter the Start and Finish fields. • Single address — enter the required address in the Start field.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 5-8: Rules table with examples For any traffic attempting to pass through the firewall, the packet information is subjected to the rules in the order shown in the Rules Table, beginning at the top and proceeding to the default rules at the bottom. In some cases, the order of precedence of two or more rules may be important in determining the disposition of a packet.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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 using whatever Password and LAN address you have chosen for the router. 2. Select the Services link of the Security menu to display the Services menu shown in Figure 5-9: Figure 5-9: Services menu 3. • To create a new Service, click the Add Custom Service button.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Setting Times and Scheduling Firewall Services The DG834GT Super Wireless ADSL Router uses the Network Time Protocol (NTP) to obtain the current time and date from one of several Network Time Servers on the Internet. How to Set Your Time Zone In order to localize the time for your log entries, you must specify your Time Zone: 1. Log in to the router at its default LAN address of http://192.168.0.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: If your region uses Daylight Savings Time, you must manually select Adjust for Daylight Savings Time on the first day of Daylight Savings Time, and clear it at the end. Enabling Daylight Savings Time will cause one hour to be added to the standard time. 4. The router has a list of NETGEAR NTP servers. If you would prefer to use a particular NTP server as the primary server, enter its IP address under Use this NTP Server. 5.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 5-16 Protecting Your Network August 2004
Chapter 6 Managing Your Network This chapter describes how to perform network management tasks with your DG834GT 108 Mbps Super Wireless ADSL Router. Backing Up, Restoring, or Erasing Your Settings The configuration settings of the DG834GT Super Wireless ADSL Router are stored in a configuration file in the router. This file can be backed up to your computer, restored, or reverted to factory default settings. The procedures below explain how to do these tasks.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 4. Store the.cfg file on a computer on your network. How to Restore the Configuration 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 password, or using whatever User Name, Password and LAN address you have chosen for the router. 2. From the Maintenance heading of the Main Menu, select the Settings Backup menu as seen in Figure 6-1. 3.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router How to Upgrade the Router Firmware Note: NETGEAR recommends that you back up your configuration before doing a firmware upgrade. After the upgrade is complete, you may need to restore your configuration settings. 1. Download and unzip the new software file from NETGEAR. The Web browser used to upload new firmware into the router must support HTTP uploads. NETGEAR recommends using Microsoft Internet Explorer 5.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Network Management Information The DG834GT provides a variety of status and usage information which is discussed below. Viewing Router Status and Usage Statistics From the Main Menu, under Maintenance, select Router Status to view the screen in Figure 6-3. Figure 6-3: Router Status screen The Router Status menu provides status and usage information.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table 6-1. Menu 3.2 - Router Status Fields Field Description Account Name The Host Name assigned to the router in the Basic Settings menu. Firmware Version This field displays the router firmware version. ADSL Port These parameters apply to the Internet (ADSL) port of the router. MAC Address This field displays the Ethernet MAC address being used by the Internet (ADSL) port of the router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 6-4: Router Statistics screen This screen shows the following statistics:. Table 6-1. Router Statistics Fields Field Description WAN, LAN, or Serial Port The statistics for the WAN (Internet), LAN (local), and Serial ports. For each port, the screen displays: Status The link status of the port. TxPkts The number of packets transmitted on this port since reset or manual clear.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 6-5: Connection Status screen for Dynamic IP Clicking the Renew button updates the status information. This screen shows the following statistics: Table 6-1. Connection Status Fields for Dynamic IP Field Description IP Address The IP Address assigned to the WAN port by the ADSL Internet Service Provider. Subnet Mask The Network Mask assigned to the WAN port by the ADSL Internet Service Provider.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router An alternate view of the Connection Status screen is shown in Figure 6-6 below: Figure 6-6: Connection Status screen for PPPoA Clicking the Renew button updates the status information. This screen shows the following statistics: Table 6-1. Connection Status Fields for PPPoA Field Description Connection Time The time elapsed since the last connection to the Internet via the ADSL port.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Viewing Attached Devices The Attached Devices menu contains a table of all IP devices that the router has discovered on the local network. From the Main Menu of the browser interface, under the Maintenance heading, select Attached Devices to view the table, shown in Figure 6-7: Figure 6-7: Attached Devices menu For each device, the table shows the IP address, Device Name if available, and the Ethernet MAC address.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure 6-8: Security Logs menu Log entries are described in Table 6-1 below: 6-10 Managing Your Network August 2004
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table 6-1. Security Log entry descriptions Field Description Date and Time The date and time the log entry was recorded. Description or Action The type of event and what action was taken if any. Source IP The IP address of the initiating device for this log entry.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Saving Log Files on a Server You can choose to write the logs to a computer running a syslog program. To activate this feature, select to Broadcast on Lan or enter the IP address of the server where the Syslog file will be written. Examples of Log Messages Following are examples of log messages.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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 • Turn e-mail notification on. Select this check box if you want to receive e-mail logs and alerts from the router. • Send alerts and logs via email. Enter the name or IP address of your ISP’s outgoing (SMTP) mail server (such as mail.myISP.com).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router If the Weekly, Daily or Hourly option is selected 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. If the router cannot e-mail the log file, the log buffer may fill up. In this case, the router overwrites the log and discards its contents.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Enabling 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 DG834GT 108 Mbps Super Wireless ADSL Router. Note: Be sure to change the router's default password to a very secure password.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router When accessing your router from the Internet, you will type your router'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 134.177.0.123 and you use port number 8080, enter in your browser: http://134.177.0.123:8080 Note: In this case, the http:// must be included in the address.
Chapter 7 Advanced Configuration This chapter describes how to configure the advanced features of your DG834GT 108 Mbps Super Wireless ADSL Router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Note: For security reasons, you should avoid using the Default DMZ Server feature. When a computer is designated as the Default DMZ Server, it loses much of the protection of the firewall, and is exposed to many exploits from the Internet. If compromised, the computer can be used to attack your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Connect Automatically, as Required Normally, this option should be enabled, so that an Internet connection will be made automatically, whenever Internet-bound traffic is detected. If this causes high connection costs, you can disable this setting. If disabled, you must connect manually, using the sub-screen accessed from the "Connection Status" button on the Status screen.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router These addresses are part of the Internet Engineering Task 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 addressing scheme, you can make those changes in this menu. Figure 7-2: LAN IP Setup Menu The LAN TCP/IP Setup parameters are: • IP Address This is the LAN IP address of the router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • RIP Version This controls the format and the broadcasting method 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 is probably adequate for most networks, unless you have an unusual network setup. — RIP-2 carries more information. Both RIP-2B and RIP-2M send the routing data in RIP-2 format.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • An IP Address from the range you have defined • Subnet Mask • 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 router’s LAN IP address • Secondary DNS Server, if you entered a Secondary DNS address in the Basic Settings menu • WINS Server, short for Windows Internet Naming Service Server, determines the IP address asso
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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 using whatever User Name, Password and LAN address you have chosen for the router. 2. From the Main Menu, under Advanced, click the LAN IP Setup link to view the menu, shown in Figure 7-3: . Figure 7-3: LAN IP Setup Menu 3.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The router contains a client that can connect to a dynamic DNS service provider. To use this feature, you must select a service provider and obtain an account with them. After you have configured your account information in the router, whenever your ISP-assigned IP address changes, your router will automatically contact your dynamic DNS service provider, log in to your account, and register your new IP address.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7. Type the User Name for your dynamic DNS account. 8. Type 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 check box to activate this feature. For example, the wildcard feature will cause *.yourhost.dyndns.org to be aliased to the same IP address as yourhost.dyndns.org 10.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router In this case you must define a static route, telling your router that 134.177.0.0 should be accessed through the ISDN router at 192.168.0.100. The static route would look like Figure 7-6. In this example: • The Destination IP Address and IP Subnet Mask fields specify that this static route applies to all 134.177.x.x addresses.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3. To add or edit a Static Route: a. Click the Edit button to open the Edit Menu, shown in Figure 7-6. Figure 7-6: Static Route Entry and Edit Menu 4. b. Type a route name for this static route in the Route Name box under the table. This is for identification purpose only. c. Select Private if you want to limit access to the LAN only. The static route will not be reported in RIP. d.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 7-12 Advanced Configuration August 2004
Chapter 8 Troubleshooting This chapter gives information about troubleshooting your DG834GT 108 Mbps Super Wireless ADSL Router. After each problem description, instructions are provided to help you diagnose and solve the problem. For the common problems listed, go to the section indicated. • Is the router on? • Have I connected the router correctly? Go to “Basic Functioning” on page 8-1. • I can’t access the router’s configuration with my browser.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router If a port’s LED is lit, a link has been established 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 conditions does not occur, refer to the appropriate following section.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Make sure that power is turned on to the connected hub or workstation. • Be sure you are using the correct cable: — When connecting the router’s WAN ADSL port, use the cable that was supplied with the DG834GT.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Click the Refresh or Reload button in the Web browser. The changes may have occurred, but the Web browser may be caching the old configuration. Troubleshooting the ISP Connection If your router is unable to access the Internet, you should check the ADSL connection, then the WAN TCP/IP connection.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router If disconnecting telephones does not result in a green WAN LED the problem may be one of the following: • Check that the telephone 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 line with the ADSL service.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Your 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 you have bought a new network device, and ask them to use the router’s MAC address. OR Configure your router to spoof your computer’s MAC address. This can be done in the Basic Settings menu. Refer to “Manually Configuring Your Internet Connection” on page 3-15.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use. If you entered a DNS address during the router’s configuration, reboot your computer and verify the DNS address as described in “Verifying TCP/IP Properties” on page C-6.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Wrong physical connections — Make sure the LAN port LED is on. If the LED is off, follow the instructions in “LAN or WAN Port LEDs Not On” on page 8-2. — Check that the corresponding Link LEDs are on for your network interface card and for the hub ports (if any) that are connected to your workstation and router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Restoring the Default Configuration and Password This section explains how to restore the factory default configuration settings, changing the router’s administration password to password and the IP address to 192.168.0.1. You can erase the current configuration and restore factory defaults in two ways: • Use the Erase function of the Web Configuration Manager (see “Backing Up, Restoring, or Erasing Your Settings” on page 6-1).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 8-10 Troubleshooting August 2004
Appendix A Technical Specifications This appendix provides technical specifications for the DG834GT 108 Mbps Super Wireless ADSL Router.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Electromagnetic Emissions Meets requirements of: FCC Part 15 Class B VCCI Class B EN 55 022 (CISPR 22), Class B Interface Specifications LAN: 10BASE-T or 100BASE-Tx, RJ-45 WAN: ADSL, RJ-11, pins 2 and 3 T1.413, G.DMT, G.
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 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 the architecture and operation of the Internet. The RFC documents outline and define the standard protocols and procedures for the Internet.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Routing Information Protocol One of the protocols used by a router to build and maintain a picture of the network is the Routing Information Protocol (RIP). Using RIP, routers periodically update one another and check for changes to add to the routing table. The DG834GT Super Wireless ADSL Router supports both the older RIP-1 and the newer RIP-2 protocols. Among other improvements, RIP-2 supports subnet and multicast protocols.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Class A Network Node Class B Network Node Class C Network Node Figure 8-1: Three Main Address Classes The five address classes are: • Class A Class A addresses can have up to 16,777,214 hosts on a single network. They use an eight-bit network number and a 24-bit node number. Class A addresses are in this range: 1.x.x.x to 126.x.x.x. • Class B Class B addresses can have up to 65,354 hosts on a network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router This addressing structure allows IP addresses to uniquely identify each physical network and each node on each physical network. For each unique value of the network portion of the address, the base address of the range (host address of all zeros) is known as the network address and is not usually assigned to a host.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Subnet addressing allows us to split one IP network address into smaller multiple physical networks known as subnetworks. Some of the node numbers are used as a subnet number instead. A Class B address gives us 16 bits of node numbers translating to 64,000 nodes. Most organizations do not use 64,000 nodes, so there are free bits that can be reassigned. Subnet addressing makes use of those bits that are free, as shown below.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table 8-1. Netmask Notation Translation Table for One Octet Number of Bits Dotted-Decimal Value 1 128 2 192 3 224 4 240 5 248 6 252 7 254 8 255 The following table displays several common netmask values in both the dotted-decimal and the masklength formats. Table 8-2. Netmask Formats Dotted-Decimal Masklength 255.0.0.0 /8 255.255.0.0 /16 255.255.255.0 /24 255.255.255.128 /25 255.255.255.192 /26 255.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router When a device broadcasts to its segment neighbors, it uses a destination address of the local network address with all ones for the host address. In order for this scheme to work, all devices on the segment must agree on which bits comprise the host address.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Private IP addresses assigned by user IP addresses assigned by ISP 192.168.0.2 192.168.0.3 192.168.0.1 172.21.15.105 Internet 192.168.0.4 192.168.0.5 7786EA Figure 8-3: Single IP Address Operation Using NAT This scheme offers the additional benefit of firewall-like protection because the internal LAN addresses are not available to the Internet through the translated connection.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Related Documents The station with the correct IP address responds with its own MAC address directly to the sending device. The receiving station provides the transmitting station with the required destination MAC address. The IP address data and MAC address data for each station are held in an ARP table. The next time data is sent, the address can be obtained from the address information in the table.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The DG834GT Super Wireless ADSL Router also functions 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 provides this information by DHCP. Internet Security and Firewalls When your LAN connects to the Internet through a router, an opportunity is created for outsiders to access or disrupt your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Denial of Service Attack A hacker may be able to prevent your network from operating or communicating by launching a Denial of Service (DoS) attack. The method used for such an attack can be as simple as merely flooding your site with more requests than it can handle. A more sophisticated attack may attempt to exploit some weakness in the operating system used by your router or gateway.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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) of untwist in the wire pair is allowed at any termination point.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Figure B-2: Crossover Twisted-Pair Cable Figure B-3: Category 5 UTP Cable with Male RJ-45 Plug at Each End Note: Flat “silver satin” telephone cable may have the same RJ-45 plug. However, using telephone cable results in excessive collisions, causing the attached port to be partitioned or disconnected from the network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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. Most hubs provide an Uplink switch which will exchange the pairs on one port, allowing that port to be connected to another hub using a normal Ethernet cable.
Appendix C Preparing Your Network This appendix describes how to prepare your network to connect to the Internet through the DG834GT 108 Mbps Super Wireless ADSL Router and how to verify the readiness of broadband Internet service from an Internet service provider (ISP).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router In your IP network, each PC and the router must be assigned a unique IP addresses. Each PC must also have certain other IP configuration information such as a subnet mask (netmask), a domain name server (DNS) address, and a default gateway address. In most cases, you should install TCP/ IP so that the PC obtains its specific network configuration information automatically from a DHCP server during bootup.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks. Note: It is not necessary to remove any other network components shown in the Network window in order to install the adapter, TCP/IP, or Client for Microsoft Networks. If you need to install a new adapter, follow these steps: a. Click the Add button. b. Select Adapter, and then click Add. c.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router If you need Client for Microsoft Networks: 3. a. Click the Add button. b. Select Client, and then click Add. c. Select Microsoft. d. Select Client for Microsoft Networks, and then click OK. Restart your PC for the changes to take effect.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Verify the following settings as shown: • Client for Microsoft Network exists • Ethernet adapter is present • TCP/IP is present • Primary Network Logon is set to Windows logon Click on the Properties button. The following TCP/IP Properties window will display.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • By default, the IP Address tab is open on this window. • Verify the following: Obtain an IP address automatically is selected. If not selected, click in the radio button to the left of it to select it. This setting is required to enable the DHCP server to automatically assign an IP address. • Click OK to continue. Restart the PC. Repeat these steps for each PC with this version of Windows on your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2. Type winipcfg, and then click OK. The IP Configuration window opens, which lists (among other things), your IP address, subnet mask, and default gateway. 3. From the drop-down box, select your Ethernet adapter.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4 You will find there are many similarities in the procedures for different Windows systems when using DHCP to configure TCP/IP. The following steps will walk you through the configuration process for each of these versions of Windows. DHCP Configuration of TCP/IP in Windows XP Locate your Network Neighborhood icon. • Select Control Panel from the Windows XP new Start Menu.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Now you should be at the Local Area Network Connection Status window. This box displays the connection status, duration, speed, and activity statistics. • Administrator logon access rights are needed to use this window. • Click the Properties button to view details about the connection. • The TCP/IP details are presented on the Support tab page.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Verify that the Obtain an IP address automatically radio button is selected. • Verify that Obtain DNS server address automatically radio button is selected. • Click the OK button. This completes the DHCP configuration of TCP/ IP in Windows XP. Repeat these steps for each PC with this version of Windows on your network.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Click on the My Network Places icon on the Windows desktop. This will bring up a window called Network and Dial-up Connections. • Right click on Local Area Connection and select Properties. • The Local Area Connection Properties dialog box appears. • Verify that you have the correct Ethernet card selected in the Connect using: box.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • With Internet Protocol (TCP/IP) selected, click on Properties to open the Internet Protocol (TCP/IP) Properties dialogue box. • Verify that • Obtain an IP address automatically is selected. • Obtain DNS server address automatically is selected. • Click OK to return to Local Area Connection Properties. • Click OK again to complete the configuration process for Windows 2000. Restart the PC.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router DHCP Configuration of TCP/IP in Windows NT4 Once you have installed the network card, you need to configure the TCP/IP environment for Windows NT 4.0. Follow this procedure to configure TCP/IP with DHCP in Windows NT 4.0. • Choose Settings from the Start Menu, and then select Control Panel. This will display Control Panel window. • Double-click the Network icon in the Control Panel window. The Network panel will display.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Highlight the TCP/IP Protocol in the Network Protocols box, and click on the Properties button.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • The TCP/IP Properties dialog box now displays. • Click the IP Address tab. • Select the radio button marked Obtain an IP address from a DHCP server. • Click OK. This completes the configuration of TCP/IP in Windows NT. Restart the PC. Repeat these steps for each PC with this version of Windows on your network. Verifying TCP/IP Properties for Windows XP, 2000, and NT4 To check your PC’s TCP/IP configuration: 1.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • 4. The default gateway is 192.168.0.1 Type exit Configuring the Macintosh for TCP/IP Networking Beginning with Macintosh Operating System 7, TCP/IP is already installed on the Macintosh. On each networked Macintosh, you need to configure TCP/IP to use DHCP. MacOS 8.6 or 9.x 1. From the Apple menu, select Control Panels, then TCP/IP. The TCP/IP Control Panel opens: 2.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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. Verifying TCP/IP Properties for Macintosh Computers After your Macintosh is configured and has rebooted, you can check the TCP/IP configuration by returning to the TCP/IP Control Panel. From the Apple menu, select Control Panels, then TCP/IP.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Verifying the Readiness of Your 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 modem. This modem must be a separate physical box (not a card) and must provide an Ethernet port intended for connection to a Network Interface Card (NIC) in a computer.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • 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 suffix For example, your account’s full server names may look like this: mail.xxx.yyy.com In this example, the domain suffix is xxx.yyy.com. If any of these items are dynamically supplied by the ISP, your router automatically acquires them.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router If an IP address appears under Installed Gateways, 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 server addresses are shown, write down the addresses. If any information appears in the Host or Domain information box, write it down. Click Disable DNS. 7.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Restarting the Network Once you have set up your computers to work with the router, you must reset the network for the devices to be able to communicate correctly. Restart any computer that is connected to the firewall.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router C-22 Preparing Your Network August 2004
Appendix D Wireless Networking Basics This chapter provides an overview of Wireless networking. Wireless Networking Overview The DG834GT Super Wireless ADSL Router conforms to the Institute of Electrical and Electronics Engineers (IEEE) 802.11b and 802.11g standards for wireless LANs (WLANs). On an 802.11b or g wireless link, data is encoded using direct-sequence spread-spectrum (DSSS) technology and is transmitted in the unlicensed radio spectrum at 2.5 GHz. The maximum data rate for the 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 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 generally communicate with any other node. There is no Access Point involved in this configuration.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • Shared Key. With Shared Key authentication, only those PCs that possess the correct authentication key can join the network. By default, IEEE 802.11 wireless devices operate in an Open System network. Wired Equivalent Privacy (WEP) data encryption is used when the wireless devices are configured to operate in Shared Key authentication mode. 802.11 Authentication The 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 2. The access point authenticates the station. 3. The station associates with the access point and joins the network. This process is illustrated below. 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Key Size The IEEE 802.11 standard supports two types of WEP encryption: 40-bit and 128-bit. The 64-bit WEP data encryption method allows for a five-character (40-bit) input. Additionally, 24 factory-set bits are added to the forty-bit input to generate a 64-bit encryption key. The 24 factory-set bits are not user-configurable). This encryption key will be used to encrypt/decrypt all data transmitted via the wireless interface.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router WEP Configuration Options The WEP settings must match on all 802.11 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 802.11 access points and all of the 802.11 client adapters on the network must have the same WEP settings.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Table D-2: Channel 802.11b/g Radio Frequency Channels Center Frequency Frequency Spread 1 2412 MHz 2399.5 MHz - 2424.5 MHz 2 2417 MHz 2404.5 MHz - 2429.5 MHz 3 2422 MHz 2409.5 MHz - 2434.5 MHz 4 2427 MHz 2414.5 MHz - 2439.5 MHz 5 2432 MHz 2419.5 MHz - 2444.5 MHz 6 2437 MHz 2424.5 MHz - 2449.5 MHz 7 2442 MHz 2429.5 MHz - 2454.5 MHz 8 2447 MHz 2434.5 MHz - 2459.5 MHz 9 2452 MHz 2439.5 MHz - 2464.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The IEEE introduced the WEP as an optional security measure to secure 802.11b (Wi-Fi) WLANs, but inherent weaknesses in the standard soon became obvious. In response to this situation, the Wi-Fi Alliance announced a new security architecture in October 2002 that remedies the shortcomings of WEP. This standard, formerly known as Safe Secure Network (SSN), is designed to work with existing 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router For 802.11, WEP encryption is optional. For WPA, encryption using Temporal Key Integrity Protocol (TKIP) is required. TKIP replaces WEP with a new encryption algorithm that is stronger than the WEP algorithm, but that uses the calculation facilities present on existing wireless devices to perform encryption operations.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router The strength of WPA comes from an integrated sequence of operations that encompass 802.1X/ EAP authentication and sophisticated key management and encryption techniques. Its major operations include: • Network security capability determination. This occurs at the 802.11 level and is communicated through WPA information elements in Beacon, Probe Response, and (Re) Association Requests.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router WPA Authentication: Enterprise-level User Authentication via 802.1x/EAP and RADIUS Wireless LAN WPA enabled wireless client with “supplicant” WPA enabled Access Point using pre-shared key or 802.1x Wired Network with Optional 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Client with a WPAenabled wireless adapter and supplicant (Win XP, Funk, Meetinghouse) For example, a WPA-enabled AP For example, a RADIUS server 1 2 3 4 6 5 7 Figure D-4: 802.1x Authentication Sequence The AP sends Beacon Frames with WPA information element to the stations in the service set. Information elements include the required authentication method (802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router 3. The client sends an EAP-response packet containing the identity to the authentication server. The access point responds by enabling a port for passing only EAP packets from the client to an authentication server located on the wired side of the access point.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Temporal Key Integrity Protocol (TKIP) WPA uses TKIP to provide important data encryption enhancements including a per-packet key mixing function, a message integrity check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism. TKIP also provides for the following: • • • The verification of the security configuration after the encryption keys are determined.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Is WPA Perfect? WPA is not without its vulnerabilities. Specifically, it is susceptible to denial of service (DoS) attacks. If the access point receives two data packets that fail the message integrity code (MIC) within 60 seconds of each other, then the network is under an active attack, and as a result, the access point employs counter measures, which include disassociating each station using the access point.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router • • • • • The new WPA information element To advertise their support of WPA, wireless APs send the beacon frame with a new 802.11 WPA information element that contains the wireless AP's security configuration (encryption algorithms and wireless security configuration information). The WPA two-phase authentication Open system, then 802.1x (EAP with RADIUS or preshared key).
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Changes to Wireless Client Programs Wireless client programs must be updated to permit the configuration of WPA authentication (and preshared key) and the new WPA encryption algorithms (TKIP and the optional AES component). To obtain the Microsoft WPA client program, visit the Microsoft Web site.
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. 802.11b IEEE specification for wireless networking at 11 Mbps using direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio spectrum at 2.5GHz. 802.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Cat 5 Category 5 unshielded twisted pair (UTP) cabling. An Ethernet network operating at 10 Mbits/second (10BASE-T) will often tolerate low quality cables, but at 100 Mbits/second (10BASE-Tx) the cable must be rated as Category 5, or Cat 5 or Cat V, by the Electronic Industry Association (EIA). This rating will be printed on the cable jacket.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router IP Address A four-byte number uniquely defining each host on the Internet. Ranges of addresses are assigned by Internic, an organization formed for this purpose. Usually written in dotted-decimal notation with periods separating the bytes (for example, 134.177.244.57). IPSec Internet Protocol Security. IPSec is a series of guidelines for securing private information transmitted over public networks.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Netmask A number that explains which part of an IP address comprises the network address and which part is the host address on that network. It can be expressed in dotted-decimal notation or as a number appended to the IP address. For example, a 28-bit mask starting from the MSB can be shown as 255.255.255.192 or as /28 appended to the IP address.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router router A device that forwards data between networks. An IP router forwards data based on IP source and destination addresses. Routing Information Protocol A protocol in which routers periodically exchange information with one another so that they can determine minimum distance paths between sources and destinations.
Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router Windows Internet Naming Service WINS. Windows Internet Naming Service is a server process for resolving Windows-based computer names to IP addresses. If a remote network contains a WINS server, your Windows PCs can gather information from that WINS server about its local hosts. This allows your PCs to browse that remote network using Network Neighborhood. WINS See Windows Internet Naming Service.
