Page 1 Reference Manual for the Model Wireless ADSL Firewall Router DG834G NETGEAR, Inc. 4500 Great America Parkway Santa Clara, CA 95054 USA Phone 1-888-NETGEAR 202-10006-05 June 2005 202-10006-05, June 2005...
Page 2 In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice. NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
Page 3 Refer to the Support Information Card that shipped with your DG834G Wireless ADSL Firewall Router. World Wide Web NETGEAR maintains a World Wide Web home page that you can access at the universal resource locator (URL) http://www.netgear.com . A direct connection to the Internet and a Web browser such as Internet Explorer or Netscape are required.
Page 4 202-10006-05, June 2005...
Page 5: Table Of Contents
Contents Chapter 1 About This Manual Audience, Scope, Conventions, and Formats ..............1-1 How to Use This Manual ....................1-2 How to Print this Manual ....................1-3 Chapter 2 Introduction About the Router ......................2-1 Key Features ........................2-1 A Powerful, True Firewall ..................2-2 802.11 Standards-based Wireless Networking ............2-2 Easy Installation and Management ................2-3 Protocol Support ......................2-3 Virtual Private Networking (VPN) ................2-5...
Page 6 Where Do I Get the Internet Configuration Parameters? .........3-3 Record Your Internet Connection Information ............3-3 Connecting the DG834G to Your LAN ................3-5 How to Connect the Router ..................3-5 Auto-Detecting Your Internet Connection Type ..............3-9 Wizard-Detected PPPoE Login Account Setup ............3-10 Wizard-Detected PPPoA Login Account Setup ............
Page 7 Chapter 5 Protecting Your Network Protecting Access to Your DG834G Wireless ADSL Firewall Router ......5-1 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 ................5-3 Firewall Rules .........................5-5 Inbound Rules (Port Forwarding) ................5-6 Inbound Rule Example: A Local Public Web Server ..........5-6...
Page 8 Examples of Log Messages ...................6-12 Activation and Administration ................6-12 Dropped Packets .....................6-12 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 ..................7-1 Setting Up A Default DMZ Server ................7-1 How to Configure a Default DMZ Server ............7-2 Connect Automatically, as Required ................7-3...
Page 9 Step 1: Configuring the Client-to-Gateway VPN Tunnel on the DG834G ....8-7 Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC ..8-12 How to Set Up a Gateway-to-Gateway VPN Configuration ..........8-20 VPN Tunnel Control ......................8-27 Activating a VPN Tunnel ..................8-27 Using the VPN Status Page to Activate a VPN Tunnel ........8-27...
Page 10 Restoring the Default Configuration and Password ............9-9 Using the Reset button .....................9-9 Problems with Date and Time ..................9-9 Appendix A Technical Specifications Appendix B Network and Routing Basics Related Publications ...................... B-1 Basic Router Concepts ....................B-1 What is a Router? ....................B-1 Routing Information Protocol ...................
Page 11 Verifying TCP/IP Properties ..................C-6 Configuring Windows NT4, 2000 or XP for IP Networking ..........C-7 Installing or Verifying Windows Networking Components ........C-7 DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4 ........C-8 DHCP Configuration of TCP/IP in Windows XP ............. C-8 DHCP Configuration of TCP/IP in Windows 2000 ..........
Page 12 VPNC IKE Security Parameters .................. E-10 VPNC IKE Phase I Parameters ................E-10 VPNC IKE Phase II Parameters ................E-11 Testing and Troubleshooting ..................E-11 Additional Reading .......................E-11 Appendix F NETGEAR VPN Configuration DG834G to FVL328 ......................F-1 Configuration Profile ....................F-1 Contents 202-10006-05, June 2005...
Page 13 Step 1: Configuring the Client-to-Gateway VPN Tunnel on the VPN Router at the Employer’s Main Office ..................F-14 Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC at the Telecommuter’s Home Office .................F-16 Monitoring the VPN Tunnel (Telecommuter Example) ..........F-25 Viewing the PC Client’s Connection Monitor and Log Viewer ........F-25...
Page 14 Contents 202-10006-05, June 2005...
Page 15: About This Manual
This manual is written for the DG834G wireless router according to these specifications: Table 1-2. Manual Scope Product Version DG834G Wireless ADSL Firewall Router Manual Publication Date June 2005 Note: Product updates are available on the NETGEAR, Inc. Web site at http://kbserver.netgear.com/products/DG834G.asp. About This Manual 202-10006-05, June 2005...
Page 16: How To Use This Manual
• button to access the full NETGEAR, Inc. online knowledge base for the product model. • Links to PDF versions of the full manual and individual chapters.
Page 17: How To Print This Manual
Reference Manual for the Model Wireless ADSL Firewall Router DG834G How to Print this Manual To print this manual you can choose one of the following several options, according to your needs. • Printing a Page in the HTML View. Each page in the HTML version of the manual is dedicated to a major topic.
Page 18 Reference Manual for the Model Wireless ADSL Firewall Router DG834G About This Manual 202-10006-05, June 2005...
Page 19: Introduction
Chapter 2 Introduction This chapter describes the features of the NETGEAR DG834G Wireless ADSL Firewall Router. The DG834G wireless router is a combination of a built-in ADSL modem, router, 4-port switch, and firewall which enables your entire network to safely share an Internet connection that otherwise is used by a single computer.
Page 20: A Powerful, True Firewall
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Easy, Web-based setup for installation and management • Extensive Internet protocol support • Trustworthy VPN Communications over the Internet • VPN Wizard for easy VPN configuration • Content filtering •...
Page 21: Easy Installation And Management
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Support for Wi-Fi Protected Access Pre-Shared Key (WPA-PSK) encryption and 802.1x authentication • Wireless access can be restricted by MAC address Easy Installation and Management You can install, configure, and operate the DG834G within minutes after connecting it to the network.
Page 22 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • The Ability to Enable or Disable IP Address Sharing by NAT The DG834G allows several networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your Internet service provider (ISP).
Page 23: Virtual Private Networking (Vpn)
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Virtual Private Networking (VPN) The DG834G wireless router provides a secure encrypted connection between your local area network (LAN) and remote networks or clients. It includes the following VPN features: •...
Page 24: The Router's Front Panel
• Warranty and Support Information cards If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the carton, including the original packing materials, in case you need to return the product for repair. The Router’s Front Panel The DG834G Wireless ADSL Firewall Router front panel shown below contains status LEDs.
Page 25: The Router's Rear Panel
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table 2-1. LED Descriptions Label Activity Description Power Power is supplied to the router. Power is not supplied to the router. Test The system is initializing. The system is ready and running. Internet Blink -- Amber Indicates ADSL training.
Page 26 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Viewed from left to right, the rear panel contains the following elements: • AC power adapter outlet • Four Local Ethernet RJ-45 LAN ports for connecting the router to the local computers •...
Page 27: Connecting The Router To The Internet
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 DG834G Wireless ADSL Firewall Router for Internet access using the Setup Wizard, or how to manually configure your Internet connection.
Page 28: Adsl Microfilter With Built-In Splitter
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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 to the ADSL line through a microfilter unless the microfilter is a combination microfilter/splitter specifically designed for this purpose.
Page 29: Internet Configuration Requirements
For Macintosh computers, open the TCP/IP or Network control panel. • You can also refer to the DG834G Resource CD for the NETGEAR Router ISP Guide which provides Internet connection information for many ISPs. Once you locate your Internet configuration parameters, you may want to record them on the next page.
Page 30 Reference Manual for the Model Wireless ADSL Firewall Router DG834G ISP Multiplexing Method and Virtual Circuit Number: The default settings of your DG834G Wireless ADSL Firewall 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).
Page 31: Connecting The Dg834G To Your Lan
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Connecting the DG834G to Your LAN This section provides instructions for connecting the DG834G wireless router. Note: The Resource CD included with your router contains an animated Installation Assistant to help you through this procedure.
Page 32 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Line 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.
Page 33 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Connect the Ethernet cable (C) from your DG834G’s LAN port to the Ethernet adapter in your computer. 54 Mbps Wireless ADSL Firewall Router DG834G Figure 3-6: Connecting a computer to the DG834G wireless router Note: The DG834G wireless router incorporates Auto Uplink technology.
Page 34 Reference Manual for the Model Wireless ADSL Firewall Router DG834G DG834G. OG IN TO THE Note: Your computer needs to be configured for DHCP. For instructions on configuring for DHCP, please see Appendix C, “Preparing Your Network”. Connect to the router by typing http://192.168.0.1 in the address field of Internet Explorer or Netscape...
Page 35: Auto-Detecting Your Internet Connection Type
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 3-9: Setup Wizard ONNECT TO THE NTERNET 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: Let the DG834G auto-detect the type of Internet connection you have and configure it.
Page 36: Wizard-Detected Pppoe Login Account Setup
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 37: Wizard-Detected Pppoa Login Account Setup
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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:...
Page 38: Wizard-Detected Ip Over Atm Account Setup
DNS servers are required to perform the function of translating an Internet name such as www.netgear.com to a numeric IP address. For a fixed IP address configuration, you must obtain DNS server addresses from your ISP and enter them manually here.
Page 39: Wizard-Detected Fixed Ip (Static) Account Setup
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Click the Test button to test your Internet connection. If the NETGEAR Web site does not appear within one minute, refer to Chapter 9, “Troubleshooting”. Wizard-Detected Fixed IP (Static) Account Setup...
Page 40: Testing Your Internet Connection
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Click Apply to save the settings. Click the Test button to test your Internet connection. If the NETGEAR Web site does not appear within one minute, refer to Chapter 9, “Troubleshooting”.
Page 41: How To Perform Manual Configuration
Reference Manual for the Model Wireless ADSL Firewall Router DG834G ISP Does Require Login ISP Does Not 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: Select your country and language.
Page 42: Internet Connection Requires Login And Uses Pppoe
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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”...
Page 43: Internet Connection Requires Login And Uses Pppoa
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Note: Disabling NAT will reboot the router and reset all the DG834G configuration settings to the factory default. Disable NAT only if you plan to install the DG834G in a setting where you will be manually administering the IP address space on the LAN side of the router.
Page 44: Internet Connection Does Note Require A Login
A DNS server is a host on the Internet that translates Internet names (such as www.netgear.com) to numeric IP addresses. Typically your ISP transfers the IP address of one or two DNS servers to your router during login. If the ISP does not transfer an address, you must obtain it from the ISP and enter it manually here.
Page 45: Adsl Settings
ISP. Alternatively, select “Use this MAC address” and enter it. Click Apply to save your settings. Click the Test button to test your Internet connection. If the NETGEAR Web site does not appear within one minute, refer to Chapter 9, “Troubleshooting”. ADSL Settings The default settings of your DG834G Wireless ADSL Firewall Router will work fine for most ISPs.
Page 46 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 3-20 Connecting the Router to the Internet 202-10006-05, June 2005...
Page 47: Wireless Configuration
Chapter 4 Wireless Configuration This chapter describes how to configure the wireless features of your DG834G Wireless ADSL Firewall 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.
Page 48: Implement Appropriate Wireless Security
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 49: Understanding Wireless Settings
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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’...
Page 50 32 alphanumeric characters. The same Name (SSID) must be assigned to all wireless devices in your network. The default SSID is NETGEAR, but NETGEAR strongly recommends that you change your network Name to a different value.
Page 51 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 52 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Security Options Table 4-1. Wireless Security Options Field Description Disable Wireless security is not used. WEP (Wired You can select the following WEP options: Equivalent Privacy) Authentication Type • Open: the DG834G does not perform any authentication. •...
Page 53: How To Set Up And Test Basic Wireless Connectivity
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table 4-1. Wireless Security Options Field 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”...
Page 54: How To Restricting Wireless Access To Your Network
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 55: Restricting Access To Your Network By Turning Off Wireless Connectivity
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 4-3: Wireless Access Point settings Restricting Access to Your Network by Turning Off Wireless Connectivity You can completely turn off the wireless portion of the DG834G. 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.
Page 56 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 4-4. Wireless Access menu Select the Turn Access Control On check box to enable restricting wireless computers by their MAC addresses. If the wireless station is currently connected to the network, you can select it from the Available Wireless Stations list.
Page 57: Choosing Wep Authentication And Security Encryption Methods
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 58: Encryption Choices
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 59: How To Configure Wep
Reference Manual for the Model Wireless ADSL Firewall Router DG834G How to Configure WEP To configure WEP data encryption, follow these steps: Log in to the DG834G 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.
Page 60: How To Configure Wpa-Psk
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 61: Protecting Your Network
Note: The user name and password are not the same as any user name or password your may use to log in to your Internet connection. NETGEAR recommends that you change this password to a more secure password. The ideal password should contain no dictionary words from any language, and should be a mixture of both upper and lower case letters, numbers, and symbols.
Page 62: Changing The Administrator Login Timeout
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 5-2: Set Password menu To change the password, first enter the old password, and then enter the new password twice. Click Apply to save your changes. Note: After changing the password, you will be required to log in again to continue the configuration.
Page 63: Blocking Keywords, Sites, And Services
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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 DG834G wireless router prevents objectionable content from reaching your PCs.
Page 64 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 5-3: Block Sites menu 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.
Page 65: Firewall Rules
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 66: Inbound Rules (Port Forwarding)
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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. •...
Page 67 Reference Manual for the Model Wireless ADSL Firewall Router DG834G A Local Public Web Server Figure 5-5: Rule example: 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.
Page 68: Inbound Rule Example: Allowing Videoconferencing
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • You can select whether the traffic will be logged. The choices are: – Never — no log entries will be made for this service. – Always — any traffic for this service type will be logged. –...
Page 69: Outbound Rules (Service Blocking)
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • If the IP address of the local server computer is assigned by DHCP, it may change when the computer is rebooted. To avoid this, use the Reserved IP address feature in the LAN IP menu to keep the computer’s IP address constant.
Page 70 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 5-7: Rule example: Blocking Instant Messenger 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 Add Custom Service feature to add any additional services or applications that do not already appear.
Page 71: Order Of Precedence For Rules
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • WAN Users These settings determine which packets are covered by the rule, based on their destination WAN IP address. Select the desired option: – Any — all IP addresses are covered by this rule. –...
Page 72: Services
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 73: Setting Times And Scheduling Firewall Services
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • To create a new Service, click the Add Custom Service button. • To edit an existing Service, select its button on the left side of the table and click Edit Service.
Page 74: How To Schedule Firewall Services
Enabling Daylight Savings Time will cause one hour to be added to the standard time. 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.
Page 75 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Select the Schedule link of the Security menu to display menu shown above in the Schedule Services menu. To block Internet services based on a schedule, select Every Day or select one or more days. If you want to limit access completely for the selected days, select All Day.
Page 76 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 5-16 Protecting Your Network 202-10006-05, June 2005...
Page 77: Managing Your Network
Chapter 6 Managing Your Network This chapter describes how to perform network management tasks with your DG834G Wireless ADSL Firewall Router. Backing Up, Restoring, or Erasing Your Settings The configuration settings of the DG834G wireless router are stored in a configuration file in the router.
Page 78: How To Restore The Configuration From A File
The software of the DG834G wireless router is stored in FLASH memory, and can be upgraded as new software is released by NETGEAR. Upgrade files can be downloaded from NETGEAR's Web site. If the upgrade file is compressed (.ZIP file), you must first extract the binary (.BIN or .IMG) file before uploading it to the router.
Page 79: How To Upgrade The Router Firmware
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 80: Network Management Information
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Network Management Information The DG834G 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.
Page 81 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 82 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 6-4: Router Statistics screen This screen shows the following statistics:. Table 6-1. Router Statistics Fields Field Description WAN, LAN, or The statistics for the WAN (Internet), LAN (local), and Serial ports. For each port, the Serial Port screen displays: Status...
Page 83 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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...
Page 84 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 85: Viewing Attached Devices
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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:...
Page 86 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 6-8: Security Logs menu Log entries are described in Table 6-1 below: 6-10 Managing Your Network 202-10006-05, June 2005...
Page 87: Selecting What Information To Log
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table 6-1. Security Log entry descriptions Field Description Date and Time The date and time the log entry was recorded. Description or The type of event and what action was taken if any. Action Source IP The IP address of the initiating device for this log entry.
Page 88: Saving Log Files On A Server
Following are examples of log messages. In all cases, the log entry shows the timestamp as: Day, Year-Month-Date Hour:Minute:Second Activation and Administration Tue, 2002-05-21 18:48:39 - NETGEAR activated [This entry indicates a power-up or reboot with initial time entry.] Tue, 2002-05-21 18:55:00 - Administrator login successful - IP:192.168.0.2 Thu, 2002-05-21 18:56:58 - Administrator logout - IP:192.168.0.2...
Page 89: Enabling Security Event E-Mail Notification
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 90: Running Diagnostic Utilities And Rebooting The Router
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 91: Enabling Remote Management
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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 DG834G Wireless ADSL Firewall Router. Note: Be sure to change the router's default password to a very secure password.
Page 92 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 93: Advanced Configuration
Chapter 7 Advanced Configuration This chapter describes how to configure the advanced features of your DG834G Wireless ADSL Firewall Router. Configuring Advanced Security The DG834G Wireless ADSL Firewall Router provides a variety of advanced features, such as: • Setting up a Demilitarized Zone (DMZ) Server •...
Page 94: How To Configure A Default Dmz Server
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 95: Connect Automatically, As Required
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 96 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 97: Dhcp
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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. —...
Page 98: Reserved Ip Addresses
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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 •...
Page 99: How To Configure Lan Tcp/Ip Settings
Reference Manual for the Model Wireless ADSL Firewall Router DG834G How to Configure LAN TCP/IP Settings 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.
Page 100: How To Configure Dynamic Dns
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 101: Using Static Routes
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Type the User Name for your dynamic DNS account. Type the Password (or key) for your dynamic DNS account. 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.
Page 102: How To Configure Static Routes
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 103 Reference Manual for the Model Wireless ADSL Firewall Router DG834G To add or edit a Static Route: Click the Edit button to open the Edit Menu, shown in Figure 7-6. Figure 7-6: Static Route Entry and Edit Menu Type a route name for this static route in the Route Name box under the table. This is for identification purpose only.
Page 104: Universal Plug And Play (Upnp)
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Universal Plug and Play (UPnP) Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access the network and connect to other devices as needed. UPnP devices can automatically discover the services from other registered UPnP devices on the network.
Page 105 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • UPnP Portmap Table: The UPnP Portmap Table displays the IP address of each UPnP device that is currently accessing the Router and which ports (Internal and External) that device has opened. The UPnP Portmap Table also displays what type of port is opened and if that port is still active for each IP address.
Page 106 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 7-14 Advanced Configuration 202-10006-05, June 2005...
Page 107: Virtual Private Networking (Advanced Feature)
“How to Set Up a Client-to-Gateway VPN Configuration” on page 8-6 provides the steps needed to configure a VPN tunnel between a remote PC and a network gateway using the VPN Wizard and the NETGEAR ProSafe VPN Client. • “How to Set Up a Gateway-to-Gateway VPN Configuration” on page 8-20 provides the steps needed to configure a VPN tunnel between two network gateways using the VPN Wizard.
Page 108: Overview Of Vpn Configuration
Figure 8-1). VPN Tunnel DG834G (Running NETGEAR ProSafe VPN Client) Figure 8-1: Client-to-Gateway VPN Tunnel A VPN client access allows a remote PC to connect to your network from any location on the Internet. In this case, the remote PC is one tunnel endpoint, running the VPN client software. The DG834G wireless router on your network is the other tunnel endpoint.
Page 109: Planning A Vpn
DG834G VPN Firewall Figure 8-2: Gateway-to-Gateway VPN Tunnel A VPN between two or more NETGEAR VPN-enabled routers is a good way to connect branch or home offices and business partners over the Internet. VPN tunnels also enable access to network resources across the Internet.
Page 110 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table 8-1. VPN Tunnel Configuration Worksheet Connection Name: Pre-Shared Key: Secure Association -- Main Mode or Manual Keys: Perfect Forward Secrecy -- Enabled or Disabled: NETBIOS -- Enabled or Disabled: Encryption Protocol -- DES or 3DES: Authentication Protocol -- MD5 or SHA-1: Diffie-Hellman (DH) Group -- Group 1 or Group 2:...
Page 111 — MDS: 128 bits, faster but less secure. — SHA-1: 160 bits, slower but more secure. Note: NETGEAR publishes additional interoperability scenarios with various gateway and client software products. Look on the NETGEAR web site at www.netgear.com for these interoperability scenarios.
Page 112: Vpn Tunnel Configuration
DG834G and the corresponding VPN endpoint gateway or client workstation. How to Set Up a Client-to-Gateway VPN Configuration Setting up a VPN between a remote PC running the NETGEAR ProSafe VPN Client and a network gateway (see Figure 8-3) involves the following two steps: •...
Page 113: Step 1: Configuring The Client-To-Gateway Vpn Tunnel On The Dg834G
VPN Tunnel 22.23.24.25 0.0.0.0 DG834G 192.168.3.1 (Running NETGEAR ProSafe VPN Client) Figure 8-3: Client-to-Gateway VPN Tunnel Step 1: Configuring the Client-to-Gateway VPN Tunnel on the DG834G Note: This section uses the VPN Wizard to set up the VPN tunnel using the VPNC...
Page 114 Reference Manual for the Model Wireless ADSL Firewall Router DG834G The worksheet below identifies the parameters used in the following procedure. A blank worksheet is at “Planning a VPN” on page 8-3. Table 8-3. VPN Tunnel Configuration Worksheet Connection Name: RoadWarrior Pre-Shared Key: 12345678...
Page 115 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-4: VPN Wizard Start Screen Fill in the Connection Name and the pre-shared key, select the type of target end point, and click Next to proceed. Note: The Connection Name is arbitrary and not relevant to how the configuration functions. Enter the new Connection Name: (e.g., RoadWarrior) Enter the pre-shared key:...
Page 116 Reference Manual for the Model Wireless ADSL Firewall Router DG834G The Summary screen below displays. Figure 8-6: VPN Wizard Summary 8-10 Virtual Private Networking (Advanced Feature) 202-10006-05, June 2005...
Page 117 Reference Manual for the Model Wireless ADSL Firewall Router DG834G To view the VPNC recommended authentication and encryption settings used by the VPN Wizard, click the “here” link (see Figure 8-6). Click Back to return to the Summary screen. 1 hour Figure 8-7: VPNC Recommended Settings Click Done on the Summary screen (see Figure...
Page 118: Step 2: Configuring The Netgear Prosafe Vpn Client On The Remote Pc
This procedure describes how to configure the NETGEAR ProSafe VPN Client. We will assume the PC running the client has a dynamically assigned IP address. The PC must have the NETGEAR ProSafe VPN Client program installed that supports IPSec. Go to the NETGEAR website (http://www.netgear.com) and select VPN01L_VPN05L in the Product Quick Find drop-down menu for information on how to purchase the NETGEAR ProSafe VPN Client.
Page 119 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Note: In this example, the Connection Name used on the client side of the VPN tunnel is toDG834 and it does not have to match the RoadWarrior Connection Name used on the gateway side of the VPN tunnel (see Figure 8-5) because Connection Names are arbitrary...
Page 120 The resulting Connection Settings are shown in Figure 8-10. Configure the Security Policy in the NETGEAR ProSafe VPN Client software. • In the Network Security Policy list, expand the new connection by double clicking its name or clicking on the “+” symbol. My Identity and Security Policy subheadings appear below the connection name.
Page 121 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • In the Network Security Policy list on the left side of the Security Policy Editor window, click on My Identity. Figure 8-12: Security Policy Editor My Identity • Choose None in the Select Certificate menu. •...
Page 122 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Configure the VPN Client Authentication Proposal. In this step, you will provide the type of encryption (DES or 3DES) to be used for this connection. This selection must match your selection in the DG834G configuration. •...
Page 123 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Expand the Key Exchange subheading by double clicking its name or clicking on the “+” symbol. Then select Proposal 1 below Key Exchange. Figure 8-15: Security Policy Editor Key Exchange •...
Page 124 To check the VPN Connection, you can initiate a request from the remote PC to the DG834G’s network by using the “Connect” option in the NETGEAR ProSafe menu bar. The NETGEAR ProSafe client will report the results of the attempt to connect. Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request.
Page 125 NETGEAR ProSafe Log Viewer. To launch this function, click on the Windows Start button, then select Programs, then NETGEAR ProSafe VPN Client, then Log Viewer. The Log Viewer screen for a successful connection is shown below: Figure 8-18: Log Viewer screen Note: Use the active VPN tunnel information and pings to determine whether a failed connection is due to the VPN tunnel or some reason outside the VPN tunnel.
Page 126: How To Set Up A Gateway-To-Gateway Vpn Configuration
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • The DG834G has a LAN IP address of 192.168.3.1. • The VPN client PC has a dynamically assigned address of 192.168.2.2. While the connection is being established, the Connection Name field in this menu will say “SA” before the name of the connection.
Page 127 192.168.3.1 255.255.255.0 22.23.24.25 Note: The LAN IP address ranges of each VPN endpoint must be different. The connection will fail if both are using the NETGEAR default address range of 192.168.0.x. Virtual Private Networking (Advanced Feature) 8-21 202-10006-05, June 2005...
Page 128 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Follow this procedure to configure a gateway-to-gateway VPN tunnel using the VPN Wizard. Log in to the DG834G on LAN A at its default LAN address of http://192.168.0.1 with its default user name of and password of .
Page 129 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 3. Fill in the IP Address or FQDN for the target VPN endpoint WAN connection and click Next. Enter the WAN IP address of the remote VPN gateway: (e.g., 22.23.24.25) Figure 8-23: Remote IP 4.
Page 130 Reference Manual for the Model Wireless ADSL Firewall Router DG834G The Summary screen below displays. Figure 8-25: VPN Wizard Summary 8-24 Virtual Private Networking (Advanced Feature) 202-10006-05, June 2005...
Page 131 Reference Manual for the Model Wireless ADSL Firewall Router DG834G To view the VPNC recommended authentication and encryption settings used by the VPN Wizard, click the “here” link (see Figure 8-25). Click Back to return to the Summary screen. 1 hour Figure 8-26: VPN Recommended Settings Click Done on the Summary screen (see Figure...
Page 132 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Repeat for the DG834G on LAN B and pay special attention to use the following network settings as appropriate. • WAN IP of the remote VPN gateway (e.g., 14.15.16.17) • LAN IP settings of the remote VPN gateway: —...
Page 133: Vpn Tunnel Control
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-29: Current VPN Tunnels (SAs) Screen Look at the VPN Status/Log screen (Figure 8-28) to verify that the tunnel is connected. VPN Tunnel Control Activating a VPN Tunnel There are three ways to activate a VPN tunnel: •...
Page 134: Activate The Vpn Tunnel By Pinging The Remote Endpoint
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-30: VPN Status/Log Screen Click on VPN Status (Figure 8-30) to get the Current VPN Tunnels (SAs) screen (Figure 8-31). Click on Connect for the VPN tunnel you want to activate. Figure 8-31: Current VPN Tunnels (SAs) Screen Activate the VPN Tunnel by Pinging the Remote Endpoint Note: This section uses 192.168.3.1 for an example remote endpoint LAN IP address.
Page 135 PC to the DG834G’s network by using the “Connect” option in the NETGEAR ProSafe menu bar. The NETGEAR ProSafe client will report the results of the attempt to connect. Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request.
Page 136: Start Using A Vpn Tunnel To Active It
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Once the connection is established, you can open the browser of the PC and enter the LAN IP address of the remote DG834G. After a short wait, you should see the login screen of the Router (unless another PC already has the DG834G management interface open).
Page 137 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-35: VPN Status/Log Screen Click on VPN Status (Figure 8-30) to get the Current VPN Tunnels (SAs) screen (Figure 8-31). This table lists the following data for each active VPN Tunnel. •...
Page 138: Deactivating A Vpn Tunnel
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-36: Current VPN Tunnels (SAs) Screen Deactivating a VPN Tunnel Sometimes a VPN tunnel must be deactivated for testing purposes. There are two ways to deactivate a VPN tunnel: •...
Page 139: Using The Vpn Status Page To Deactivate A Vpn Tunnel
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-37: VPN Policies Clear the Enable check box for the VPN tunnel you want to deactivate and click Apply. (To reactivate the tunnel, check the Enable box and click Apply.) Using the VPN Status Page to Deactivate a VPN Tunnel To use the VPN Status page to deactivate a VPN tunnel, perform the following steps: Log in to the Router.
Page 140 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-38: VPN Status/Log Screen Click VPN Status (Figure 8-38) to get the Current VPN Tunnels (SAs) screen (Figure 8-39). Click Drop for the VPN tunnel you want to deactivate. Figure 8-39: Current VPN Tunnels (SAs) Screen 8-34 Virtual Private Networking (Advanced Feature)
Page 141: Deleting A Vpn Tunnel
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Note: When NETBIOS is enabled (which it is in the VPNC defaults implemented by the VPN Wizard), automatic traffic will reactivate the tunnel. To prevent reactivation from happening, either disable NETBIOS or disable the policy for the tunnel (see “Using the Policy Table on the VPN Policies Page to Deactivate a VPN Tunnel”...
Page 142: Using Auto Policy To Configure Vpn Tunnels
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Manual Policy—for a Manual Keying setup in which you must specify each phase of the connection, see “Using Manual Policy to Configure VPN Tunnels” on page 8-48. Manual Policy does not use IKE. Rather, you manually enter all the authentication and key parameters. You have more control over the process, however the process is more complex and there are more opportunities for errors or configuration mismatches between your DG834G and the corresponding VPN endpoint gateway or client workstation.
Page 143 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-41: DG834G VPN Tunnel Auto Policy Configuration Menu Virtual Private Networking (Advanced Feature) 8-37 202-10006-05, June 2005...
Page 144 Reference Manual for the Model Wireless ADSL Firewall Router DG834G The DG834G VPN tunnel network connection fields are defined as follows: General These settings identify this policy and determine its major characteristics. • Policy Name—Enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint.
Page 145 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Remote LAN This identifies which PCs on the remote LAN are covered by this policy. For each selection, data must be provided as follows: — • Single PC - no Subnet select this option if there is no LAN (only a single PC) at the remote endpoint.
Page 146 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Local Identity Data—enter the data for the selection above. (If "WAN IP Address" is selected, no input is required.) Remote Identity Type—select the desired option to match the "Local Identity Type" setting on the remote VPN endpoint.
Page 147: Example Of Using Auto Policy
Reference Manual for the Model Wireless ADSL Firewall Router DG834G This setting applies to both IKE and IPSec SAs. When configuring the remote endpoint to match this setting, you may have to specify the "Key Group" used. For this device, the "Key Group" is the same as the "DH Group"...
Page 148 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table 8-1. VPN Tunnel Configuration Worksheet Connection Name: GtoG Pre-Shared Key: 12345678 Secure Association -- Main Mode or Manual Keys: Main Perfect Forward Secrecy -- Enabled or Disabled: Disabled NETBIOS -- Enabled or Disabled: Enabled Encryption Protocol -- DES or 3DES: 3DES...
Page 149 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Open the DG834G on LAN A management interface and click on VPN Policies. Figure 8-43: VPN Policies Screen Click Add Auto Policy. Enter policy settings (see Figure 8-44). • General —...
Page 150 Reference Manual for the Model Wireless ADSL Firewall Router DG834G — Remote Identity Type = use default setting • Parameters — Encryption Algorithm = 3DES — Authentication Algorithm = MD5 — Pre-shared Key = 12345678 8-44 Virtual Private Networking (Advanced Feature) 202-10006-05, June 2005...
Page 151 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-44: VPN Auto Policies Screen Virtual Private Networking (Advanced Feature) 8-45 202-10006-05, June 2005...
Page 152 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Click Apply. The Get VPN Policies web page is displayed. Figure 8-45: VPN Policies Screen Repeat for the DG834G on LAN B and pay special attention to use the following network settings as appropriate.
Page 153 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure 8-46: VPN Status/Log Screen Click VPN Status (Figure 8-46) to display the Current VPN Tunnels (SAs) screen (Figure 8-47). Click on Connect for the VPN tunnel you want to activate. Figure 8-47: Current VPN Tunnels (SAs) Screen Review the VPN Status/Log screen (Figure...
Page 154: Using Manual Policy To Configure Vpn Tunnels
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Using Manual Policy to Configure VPN Tunnels As an alternative to IKE, you may use Manual Keying, in which you must specify each phase of the connection. A "Manual" VPN policy requires all settings for the VPN tunnel to be manually input at each end (both VPN endpoints).
Page 155 Reference Manual for the Model Wireless ADSL Firewall Router DG834G General The DG834G VPN tunnel network connection fields are defined as follows: • Policy Name—enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint. It is used only to help you manage the policies. •...
Page 156 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Range address—enter the starting IP address in the "Single/Start IP address" field, and the finish IP address in the "Finish IP address" field. This must be an address range used on the remote LAN.
Page 157: Troubleshooting
Chapter 9 Troubleshooting This chapter gives information about troubleshooting your DG834G Wireless ADSL Firewall 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. •...
Page 158: Power Led Not On
• Check that you are using the 12 V DC power adapter supplied by NETGEAR for this product. If the error persists, you have a hardware problem and should contact technical support.
Page 159: Troubleshooting The Web Configuration Interface
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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 DG834G.
Page 160: Troubleshooting The Isp Connection
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 161: Obtaining A Wan Ip Address
To check the WAN IP address from the browser interface: Launch your browser and select an external site such as www.netgear.com. Access the Main Menu of the router’s configuration at http://192.168.0.1.
Page 162: Troubleshooting Pppoe Or Pppoa
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 163: Troubleshooting A Tcp/Ip Network Using The Ping Utility
Reference Manual for the Model Wireless ADSL Firewall Router DG834G A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use.
Page 164: Testing The Path From Your Computer To A Remote Device
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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” page 9-2.
Page 165: Restoring The Default Configuration And Password
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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: •...
Page 166 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 9-10 Troubleshooting 202-10006-05, June 2005...
Page 167: Technical Specifications
Appendix A Technical Specifications This appendix provides technical specifications for the DG834G Wireless ADSL Firewall Router. Network Protocol and Standards Compatibility Data and Routing Protocols: TCP/IP, RIP-1, RIP-2, DHCP, PPP over Ethernet (PPPoE) or PPP over ATM (PPPoA), RFC 1483 Bridged or Routed Ethernet, and RFC 1577 Classical IP over ATM Power Adapter North America:...
Page 168 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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, Dual RJ-11, pins 2 and 3 T1.413, G.DMT, G.Lite ITU Annex A or B Technical Specifications...
Page 169: Network And Routing Basics
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.
Page 170: Routing Information Protocol
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 171 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Class A Network Node Class B Network Node Class C Network Node Figure 9-1: Three Main Address Classes The five address classes are: • Class A Class A addresses can have up to 16,777,214 hosts on a single network. They use an eight-bit network number and a 24-bit node number.
Page 172: Netmask
Reference Manual for the Model Wireless ADSL Firewall Router DG834G This addressing structure allows IP addresses to uniquely identify each physical network and each node on each physical network. For each unique value of the network portion of the address, the base address of the range (host address of all zeros) is known as the network address and is not usually assigned to a host.
Page 173 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 174 255.255.255.240 255.255.255.248 255.255.255.252 255.255.255.254 255.255.255.255 NETGEAR strongly recommends that you configure all hosts on a LAN segment to use the same netmask for the following reasons: • So that hosts recognize local IP broadcast packets Network and Routing Basics 202-10006-05, June 2005...
Page 175: Private Ip Addresses
10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255 NETGEAR recommends that you choose your private network number from this range. The DHCP server of the DG834G wireless router is preconfigured to automatically assign private addresses. Regardless of your particular situation, do not create an arbitrary IP address; always follow the guidelines explained here.
Page 176: Mac Addresses And Address Resolution Protocol
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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 9-3: 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.
Page 177: Related Documents
Many of the resources on the Internet can be addressed by simple descriptive names such as www.NETGEAR.com. This addressing is very helpful at the application level, but the descriptive name must be translated to an IP address in order for a user to actually contact the resource. Just as...
Page 178: Internet Security And Firewalls
Reference Manual for the Model Wireless ADSL Firewall Router DG834G The DG834G wireless 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.
Page 179: Denial Of Service Attack
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 180: Inside Twisted Pair Cables
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 181: Uplink Switches, Crossover Cables, And Mdi/Mdix Switching
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 182 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 183: Appendix C Preparing Your Network
Appendix C Preparing Your Network This appendix describes how to prepare your network to connect to the Internet through the DG834G Wireless ADSL Firewall Router and how to verify the readiness of broadband Internet service from an Internet service provider (ISP). Note: If an ISP technician configured your computer during the installation of a broadband modem, or if you configured it using instructions provided by your ISP, you may need to copy the current configuration information for use in the configuration of...
Page 184: Configuring Windows 95, 98, And Me For Tcp/Ip Networking
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 185 Reference Manual for the Model Wireless ADSL Firewall Router DG834G You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks. Note: It is not necessary to remove any other network components shown in the Network window in order to install the adapter, TCP/IP, or Client for Microsoft Networks.
Page 186 Reference Manual for the Model Wireless ADSL Firewall Router DG834G If you need Client for Microsoft Networks: Click the Add button. Select Client, and then click Add. Select Microsoft. Select Client for Microsoft Networks, and then click OK. Restart your PC for the changes to take effect. Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me After the TCP/IP protocol components are installed, each PC must be assigned specific...
Page 187 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 188: Selecting The Windows' Internet Access Method
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 189: Configuring Windows Nt4, 2000 Or Xp For Ip Networking
From the drop-down box, select your Ethernet adapter. The window is updated to show your settings, which should match the values below if you are using the default TCP/IP settings that NETGEAR recommends for connecting through a router or gateway: •...
Page 190: Dhcp Configuration Of Tcp/Ip In Windows Xp, 2000, Or Nt4
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 191 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 192: Dhcp Configuration Of Tcp/Ip In Windows 2000
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 193 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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. •...
Page 194 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 195: Dhcp Configuration Of Tcp/Ip In Windows Nt4
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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. •...
Page 196 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Highlight the TCP/IP Protocol in the Network Protocols box, and click on the Properties button. C-14 Preparing Your Network 202-10006-05, June 2005...
Page 197: Verifying Tcp/Ip Properties For Windows Xp, 2000, And Nt4
Type ipconfig /all Your IP Configuration information will be listed, and should match the values below if you are using the default TCP/IP settings that NETGEAR recommends for connecting through a router or gateway: • The IP address is between 192.168.0.2 and 192.168.0.254 •...
Page 198: Configuring The Macintosh For Tcp/Ip Networking
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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 From the Apple menu, select Control Panels, then TCP/IP.
Page 199: Verifying Tcp/Ip Properties For Macintosh Computers
TCP/IP Control Panel. From the Apple menu, select Control Panels, then TCP/IP. The panel is updated to show your settings, which should match the values below if you are using the default TCP/IP settings that NETGEAR recommends: •...
Page 200: Verifying The Readiness Of Your Internet Account
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 201: Obtaining Isp Configuration Information For Windows Computers
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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 •...
Page 202: Obtaining Isp Configuration Information For Macintosh Computers
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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. Select the DNS Configuration tab.
Page 203: Restarting The Network
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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. After configuring all of your computers for TCP/IP networking and restarting them, and connecting them to the local network of your DG834G wireless router, you are ready to access and configure the router.
Page 204 Reference Manual for the Model Wireless ADSL Firewall Router DG834G C-22 Preparing Your Network 202-10006-05, June 2005...
Page 205: Wireless Networking Basics
Appendix D Wireless Networking Basics This chapter provides an overview of Wireless networking. Wireless Networking Overview The DG834G wireless 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.
Page 206: Ad Hoc Mode (Peer-To-Peer Workgroup
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 207: 802.11 Authentication
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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.
Page 208: Shared Key Authentication
Reference Manual for the Model Wireless ADSL Firewall Router DG834G The access point authenticates the station. The station associates with the access point and joins the network. This process is illustrated below. 802.11b Authentication Open System Steps Access Point 1) Authentication request sent to AP Router 2) AP authenticates MODEL...
Page 209: Overview Of Wep Parameters
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 802.11b Authentication Shared Key Steps Access Point 1) Authentication request sent to AP Router MODEL FVM318 IN TER N ET W LA N LO CA L 2) AP sends challenge text Cable/DSL ProSafeWirelessVPN Security Firewall TEST...
Page 210: Key Size
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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).
Page 211: Wep Configuration Options
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 212: Wpa Wireless Security
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table D-2: 802.11b/g Radio Frequency Channels Channel Center Frequency Frequency Spread 2412 MHz 2399.5 MHz - 2424.5 MHz 2417 MHz 2404.5 MHz - 2429.5 MHz 2422 MHz 2409.5 MHz - 2434.5 MHz 2427 MHz 2414.5 MHz - 2439.5 MHz 2432 MHz...
Page 213: How Does Wpa Compare To Wep
Access products. Starting August of 2003, all new Wi-Fi certified products will have to support WPA. NETGEAR will implement WPA on client and access point products and make this available in the second half of 2003. Existing Wi-Fi certified products will have one year to add WPA support or they will lose their Wi-Fi certification.
Page 214: How Does Wpa Compare To Ieee 802.11I
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 215 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 216: Wpa Authentication: Enterprise-Level User Authentication Via 802.1X/Eap And Radius
WPA supports Extensible Authentication Protocol (EAP). For environments without a RADIUS infrastructure, WPA supports the use of a pre-shared key. Together, these technologies provide a framework for strong user authentication. Windows XP implements 802.1x natively, and several NETGEAR switch and wireless access point products support 802.1x. D-12...
Page 217 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Client with a WPA- enabled wireless adapter and supplicant (Win XP, Funk, For example, a For example, a Meetinghouse) WPA-enabled AP RADIUS server 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 (802.1x or Pre-shared key) and the preferred cipher suite (WEP, TKIP, or AES).
Page 218: Wpa Data Encryption Key Management
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 219 Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 220: Is Wpa Perfect
Product Support for WPA Starting in August, 2003, NETGEAR, Inc. wireless Wi-Fi certified products will support the WPA standard. NETGEAR, Inc. wireless products that had their Wi-Fi certification approved before August, 2003 will have one year to add WPA so as to maintain their Wi-Fi certification.
Page 221: Changes To Wireless Network Adapters
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • 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).
Page 222: Changes To Wireless Client Programs
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 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.
Page 223: Virtual Private Networking
Appendix E Virtual Private Networking There have been many improvements in the Internet including Quality of Service, network performance, and inexpensive technologies, such as DSL. But one of the most important advances has been in Virtual Private Networking (VPN) Internet Protocol security (IPSec). IPSec is one of the most complete, secure, and commercially available, standards-based protocols developed for transporting data.
Page 224: What Is Ipsec And How Does It Work
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Remote Access: Remote access enables telecommuters and mobile workers to access e-mail and business applications. A dial-up connection to an organization’s modem pool is one method of access for remote workers, but is expensive because the organization must pay the associated long distance telephone and service costs.
Page 225: Encapsulating Security Payload (Esp
Reference Manual for the Model Wireless ADSL Firewall Router DG834G • Encapsulating Security Payload (ESP): Provides confidentiality, authentication, and integrity. • Authentication Header (AH): Provides authentication and integrity. • Internet Key Exchange (IKE): Provides key management and Security Association (SA) management.
Page 226: Authentication Header (Ah
Reference Manual for the Model Wireless ADSL Firewall Router DG834G The ESP header is inserted into the packet between the IP header and any subsequent packet contents. However, because ESP encrypts the data, the payload is changed. ESP does not encrypt the ESP header, nor does it encrypt the ESP authentication.
Page 227: Mode
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Mode SAs operate using modes. A mode is the method in which the IPSec protocol is applied to the packet. IPSec can be used in tunnel mode or transport mode. Typically, the tunnel mode is used for gateway-to-gateway IPSec tunnel protection, while transport mode is used for host-to-host IPSec tunnel protection.
Page 228: Key Management
This document provides case studies on how to configure secure IPSec VPN tunnels. This document assumes the reader has a working knowledge of NETGEAR management systems. NETGEAR is a member of the VPN Consortium, a group formed to facilitate IPSec VPN vendor interoperability. The VPN Consortium has developed specific scenarios to aid system administrators in the often confusing process of connecting two different vendor implementations of the IPSec standard.
Page 229: Vpn Process Overview
Reference Manual for the Model Wireless ADSL Firewall Router DG834G VPN Process Overview Even though IPSec is standards-based, each vendor has its own set of terms and procedures for implementing the standard. Because of these differences, it may be a good idea to review some of the terms and the generic processes for connecting two gateways before diving into to the specifics.
Page 230: Firewalls
Reference Manual for the Model Wireless ADSL Firewall Router DG834G Table E-1. WAN (Internet/Public) and LAN (Internal/Private) Addressing Gateway LAN or WAN VPNC Example Address Gateway A LAN (Private) 10.5.6.1 Gateway A WAN (Public) 14.15.16.17 Gateway B LAN (Private) 22.23.24.25 Gateway B WAN (Public) 172.23.9.1...
Page 231 Reference Manual for the Model Wireless ADSL Firewall Router DG834G VPN Tunnel DG834G VPN Firewall DG834G VPN Firewall Figure E-5: VPN Tunnel SA The SA contains all the information necessary for gateway A to negotiate a secure and encrypted communication stream with gateway B. This communication is often referred to as a “tunnel.” The gateways contain this information so that it does not have to be loaded onto every computer connected to the gateways.
Page 232: Vpnc Ike Security Parameters
Reference Manual for the Model Wireless ADSL Firewall Router DG834G 1. The IPSec software on Host A initiates the IPSec process in an attempt to communicate with Host B. The two computers then begin the Internet Key Exchange (IKE) process. IKE Phase I.
Page 233: Vpnc Ike Phase Ii Parameters
LAN-side of the other gateway. You can troubleshoot connections using the VPN status and log details on the Netgear gateway to determine if IKE negotiation is working. Common problems encountered in setting up VPNs include: •...
Page 234 Reference Manual for the Model Wireless ADSL Firewall Router DG834G • [FF98] Floyd, S., and Fall, K., Promoting the Use of End-to-End Congestion Control in the Internet. IEEE/ACM Transactions on Networking, August 1999. Relevant RFCs listed numerically: • [RFC 791] Internet Protocol DARPA Internet Program Protocol Specification, Information Sciences Institute, USC, September 1981.
Page 235: Netgear Vpn Configuration
NETGEAR VPN Configuration DG834G to FVL328 This appendix is a case study on how to configure a secure IPSec VPN tunnel from a NETGEAR DG834G to a FVL328. This case study follows the VPN Consortium interoperability profile guidelines (found at http://www.vpnc.org/InteropProfiles/Interop-01.html).
Page 236: Step-By-Step Configuration
172.23.9.1 DG834G FVL328 Figure F-1: Addressing and Subnet Used for Examples Note: Product updates are available on the NETGEAR, Inc. web site at http://kbserver.netgear.com/DG834G.asp. Step-By-Step Configuration Configure the DG834G as in the Gateway-to-Gateway procedures using the VPN Wizard (see “How to Set Up a Gateway-to-Gateway VPN Configuration“ on page 8-20), being certain to use appropriate network addresses for the environment.
Page 237 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Click VPN Policies under Advanced - VPN to invoke this screen 10.5.6.1 172.23.9.1 toFVL328 toFVL328 22.23.24.25 10 10 Figure F-2: Viewing and editing the VPN parameters of the DG834G at gateway A NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 238 In Step 1, enter toDG834 for the Connection Name In Step 2, enter 14.15.16.17 for the remote WAN's IP address In Step 3, enter the following: • IP Address = 10.5.6.1 • Subnet Mask = 255.255.255.0 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 239 VPN to invoke this screen 14.15.16.17 toDG834 172.23.9.1 10.5.6.1 Click VPN Policies under VPN to invoke this screen toDG834 toDG834 14.15.16.17 Figure F-3: Viewing and editing the VPN parameters of the FVL328 at gateway B NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 240: Dg834G With Fqdn To Fvl328
DG834G with FQDN to FVL328 This appendix is a case study on how to configure a VPN tunnel from a NETGEAR DG834G to a FVL328 using a Fully Qualified Domain Name (FQDN) to resolve the public address of one or both routers.
Page 241: The Use Of A Fully Qualified Domain Name (Fqdn
DG834G FVL328 Figure F-5: Addressing and Subnet Used for Examples Note: Product updates are available on the NETGEAR, Inc. web site at http://kbserver.netgear.com/DG834G.asp. The Use of a Fully Qualified Domain Name (FQDN) Many ISPs (Internet Service Providers) provide connectivity to their customers using dynamic instead of static IP addressing.
Page 242: Step-By-Step Configuration
LAN address as 10.5.6.1 for Gateway A and have set your own password. Click on the Dynamic DNS link on the left side of the Settings management GUI. This will take you to the Dynamic DNS Menu. NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 243 Host Name = dg834g.dyndns.org • User Name = <user's account username> • Password = <user's account password> Click Show Status. The resulting screen should show Update OK: good (see Figure F-7). Figure F-7: Status Screen NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 244 F-8), configure with appropriate account and hostname settings (see Figure F-9), and then click Apply. • Host and Domain Name = fvl328.dyndns.org • User Name = <user's account username> • Password = <user's account password> F-10 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 245 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Figure F-9: Dynamic DNS Setup Screen Click Show Status. The resulting screen should show Update OK: good (see Figure F-10). Figure F-10: Status Screen NETGEAR VPN Configuration F-11 202-10006-05, June 2005...
Page 246 IP Address = 10.5.6.1 • Subnet Mask = 255.255.255.0 Test the VPN tunnel by pinging the remote network from a PC attached to the DG834G. Open the command prompt (Start -> Run -> cmd) ping 172.23.9.1 F-12 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 247: Configuration Summary (Telecommuter Example
Security Scheme: IKE with Preshared Secret/Key (not Certificate-based) Date Tested: May 2005 Model/Firmware Tested: Gateway DG834G firmware version v2.10.20 Client NETGEAR ProSafe VPN Client v10.5.1 (build 8) IP Addressing: Gateway Fully Qualified Domain Name (FQDN) Client Dynamic NETGEAR VPN Configuration F-13...
Page 248: Setting Up The Client-To-Gateway Vpn Configuration (Telecommuter Example
Figure F-12: Addressing and subnet used for telecommuter example Setting Up the Client-to-Gateway VPN Configuration (Telecommuter Example) Setting up a VPN between a remote PC running the NETGEAR ProSafe VPN Client and a network gateway involves the following two steps: •...
Page 249 VPN Passthrough enabled) Main Mode Fully Qualified Domain Name fromDG834G.com (in this example) Fully Qualified Domain Name toDG834G.com (in this example) 3DES 12345678 (in this example) 3600 Figure F-13: VPN Auto Policy screen NETGEAR VPN Configuration F-15 202-10006-05, June 2005...
Page 250: Step 2: Configuring The Netgear Prosafe Vpn Client On The Remote Pc At The Telecommuter's Home Office
The PC must have a VPN client program installed that supports IPSec (in this case study, the NETGEAR VPN ProSafe Client is used). Go to the NETGEAR website (http://www.netgear.com) and select VPN01L_VPN05L in the Product Quick Find drop-down menu for information on how to purchase the NETGEAR ProSafe VPN Client.
Page 251 Double-click the system tray icon to open the Security Policy Editor. Add a new connection. Run the NETGEAR ProSafe Security Policy Editor program and create a VPN Connection. From the Edit menu of the Security Policy Editor, click Add, then Connection. A New Connection listing appears in the list of policies.
Page 252 Configure the Security Policy in the DG834G Wireless ADSL Firewall Router software. In the Network Security Policy list, expand the new connection by double clicking its name or clicking on the “+” symbol. My Identity and Security Policy subheadings appear below the connection name. F-18 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 253 In this step, you will provide information about the remote VPN client PC. You will need to provide: — The Pre-Shared Key that you configured in the DG834G. — Either a fixed IP address or a “fixed virtual” IP address of the VPN client PC. NETGEAR VPN Configuration F-19 202-10006-05, June 2005...
Page 254 In the Internet Interface box, select Intel PRO/100VE Network Connection (in this example, your Ethernet adapter may be different) in the Name menu and enter 192.168.2.3 (in this example) in the IP Addr box. F-20 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 255 This selection must match your selection in the VPN router configuration. In the Network Security Policy list on the left side of the Security Policy Editor window, expand the Security Policy heading by double clicking its name or clicking on the “+” symbol. NETGEAR VPN Configuration F-21 202-10006-05, June 2005...
Page 256 Configure the VPN Client Key Exchange Proposal. In this step, you will provide the type of encryption (DES or 3DES) to be used for this connection. This selection must match your selection in the VPN router configuration. F-22 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 257 After you have configured and saved the VPN client information, your PC will automatically open the VPN connection when you attempt to access any IP addresses in the range of the remote VPN router’s LAN. NETGEAR VPN Configuration F-23 202-10006-05, June 2005...
Page 258 Figure F-22: Connecting the PC the DG834G over the VPN tunnel To perform a ping test using our example, start from the remote PC: Establish an Internet connection from the PC. On the Windows taskbar, click the Start button, and then click Run. F-24 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 259: Monitoring The Vpn Tunnel (Telecommuter Example
To view information on the progress and status of the VPN client connection, open the DG834G Wireless ADSL Firewall Router Log Viewer. To launch this function, click on the Windows Start button, then select Programs, then DG834G Wireless ADSL Firewall Router, then Log Viewer. NETGEAR VPN Configuration F-25 202-10006-05, June 2005...
Page 260 Note: While your PC is connected to a remote LAN through a VPN, you might not have normal Internet access. If this is the case, you will need to close the VPN connection in order to have normal Internet access. F-26 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 261: Viewing The Vpn Router's Vpn Status And Log Information
To view this screen, click the Router Status link of the VPN router’s main menu, then click the VPN Status button. The VPN Status/Log screen for a connection is shown below: Figure F-26: VPN Status/Log screen NETGEAR VPN Configuration F-27 202-10006-05, June 2005...
Page 262 Reference Manual for the Model Wireless ADSL Firewall Router DG834G To view the VPN tunnels status, click the VPN Status link on the right side of the main menu. Current VPN Tunnels (SAs) screen F-28 NETGEAR VPN Configuration 202-10006-05, June 2005...
Page 263: Glossary
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.
Page 264 Domain names are of the form of a registered entity name plus one of a number of predefined top level suffixes such as .com, .edu, .uk, and so on. For example, in the address mail.NETGEAR.com, mail is a server name and NETGEAR.com is the domain.
Page 265 Reference Manual for the Model Wireless ADSL Firewall Router DG834G IP Address A four-byte number uniquely defining each host on the Internet. Ranges of addresses are assigned by Internic, an organization formed for this purpose. Usually written in dotted-decimal notation with periods separating the bytes (for example, 134.177.244.57).
Page 266 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Netmask A number that explains which part of an IP address comprises the network address and which part is the host address on that network. It can be expressed in dotted-decimal notation or as a number appended to the IP address.
Page 267 Reference Manual for the Model Wireless ADSL Firewall Router DG834G router A device that forwards data between networks. An IP router forwards data based on IP source and destination addresses. Routing Information A protocol in which routers periodically exchange information with one Protocol another so that they can determine minimum distance paths between sources and destinations.
Page 268 Reference Manual for the Model Wireless ADSL Firewall Router DG834G Windows Internet WINS. Windows Internet Naming Service is a server process for resolving Naming Service 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 manual is also suitable for:

Dg834gv2 - 54 mbps wireless adsl firewall modem Dg834g - 54 mbps wireless adsl firewall router Dg834g

NETGEAR DG834Gv1 - 54 Mbps Wireless ADSL Firewall Modem Reference Manual

Chapter 1 About this Manual

Chapter 2 Introduction

Chapter 3 Connecting the Router to the Internet

Chapter 4 Wireless Configuration

Chapter 5 Protecting Your Network

Chapter 6 Managing Your Network

Chapter 7 Advanced Configuration

Chapter 8 Virtual Private Networking (Advanced Feature)

Chapter 9 Troubleshooting

Appendix A

Technical Specifications

Appendix B Network and Routing Basics

Appendix C Preparing Your Network

Appendix D Wireless Networking Basics

Appendix E Virtual Private Networking

Appendix F NETGEAR VPN Configuration

Glossary

Quick Links

Troubleshooting

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Summary of Contents for NETGEAR DG834Gv1 - 54 Mbps Wireless ADSL Firewall Modem