Reference Manual for the Model DG824M Wireless ADSL Modem Gateway NETGEAR, Inc. 4500 Great America Parkway Santa Clara, CA 95054 USA Phone 1-888-NETGEAR SM-DG824MNA-1 July 2003 © 2003 by NETGEAR, Inc. All rights reserved. May 2003. Trademarks NETGEAR is a trademark of Netgear, Inc. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product names are registered trademarks or trademarks of their respective holders. Statement of Conditions In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice. 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. Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · · · · Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Federal Communications Commission (FCC) Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20 cm (8 inches) during normal operation. EN 55 022 Declaration of Conformance This is to certify that the DG824M Wireless ADSL Modem Gateway is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class B (CISPR 22). ii Bestätigung des Herstellers/Importeurs Es wird hiermit bestätigt, daß das DG824M Wireless ADSL Modem Gateway gemäß der im BMPT-AmtsblVfg 243/ 1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung. Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen. Certificate of the Manufacturer/Importer It is hereby certified that the DG824M Wireless ADSL Modem Gateway has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the notes in the operating instructions. Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right to test the series for compliance with the regulations. Voluntary Control Council for Interference (VCCI) Statement This equipment is in the second category (information equipment to be used in a residential area or an adjacent area thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in such residential areas. When used near a radio or TV receiver, it may become the cause of radio interference. Read instructions for correct handling. Customer Support Refer to the Support Information Card that shipped with your DG824M Wireless ADSL Modem Gateway. 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. iii iv Contents Chapter 1 About This Guide Audience .........................................................................................................................1-1 Scope .............................................................................................................................1-1 Typographical Conventions ............................................................................................1-2 Special Message Formats ..............................................................................................1-2 How to Use the HTML Version of this Manual ................................................................1-3 How to Print this Manual .................................................................................................1-4 Chapter 2 Introduction About the Gateway .........................................................................................................2-1 Key Features ..................................................................................................................2-1 802.11b Standards-based Wireless Networking ......................................................2-2 A Powerful, True Firewall .........................................................................................2-2 Content Filtering .......................................................................................................2-3 Auto Sensing and Auto UplinkTM LAN Ethernet Connections ..................................2-3 Protocol Support ......................................................................................................2-3 Easy Installation and Management ..........................................................................2-4 What's in the Box? ..........................................................................................................2-5 The Gateway's Front Panel ......................................................................................2-6 The Gateway's Rear Panel ......................................................................................2-7 Chapter 3 Connecting the Gateway to the Internet What You Will Need Before You Begin ...........................................................................3-1 ADSL Microfilter Requirements ................................................................................3-1 ADSL Microfilter .................................................................................................3-1 ADSL Microfilter with Built-In Splitter .................................................................3-2 Ethernet Cabling Requirements ...............................................................................3-2 Computer Hardware Requirements .........................................................................3-2 Contents v LAN Configuration Requirements ............................................................................3-2 Internet Configuration Requirements .......................................................................3-3 Where Do I Get the Internet Configuration Parameters? .........................................3-3 Record Your Internet Connection Information ..........................................................3-4 Connecting the DG824M to Your LAN ............................................................................3-5 How to Connect the Gateway ..................................................................................3-5 Connecting the DG824M to the Internet .........................................................................3-9 Auto-Detecting Your Internet Connection Type ........................................................3-9 Wizard-Detected PPPoE Login Account Setup ......................................................3-10 Wizard-Detected PPPoA Login Account Setup ......................................................3-12 Wizard-Detected Dynamic IP Account Setup .........................................................3-14 Wizard-Detected IP Over ATM Account Setup ......................................................3-15 Wizard-Detected Fixed IP (Static) Account Setup ..................................................3-16 Testing Your Internet Connection ..................................................................................3-17 Manually Configuring Your Internet Connection ...........................................................3-18 Manual Configuration .............................................................................................3-19 Chapter 4 Wireless Configuration Considerations for a Wireless Network ..........................................................................4-1 Observe Performance, Placement, and Range Guidelines .....................................4-1 Implement Appropriate Wireless Security ................................................................4-2 Understanding Wireless Settings ...................................................................................4-3 How to Set Up and Test Basic Wireless Connectivity ..............................................4-4 Restricting Wireless Access to Your Network ..........................................................4-5 Restricting Access to Your Network by Turning Off Wireless Connectivity ........4-6 Restricting Wireless Access Based on the Wireless Network Name (SSID) .....4-6 Restricting Wireless Access Based on the Trusted PCs List .............................4-6 Choosing WEP Authentication and Security Encryption Methods ...........................4-8 Authentication Type Selection ...........................................................................4-8 Encryption Choices ............................................................................................4-9 How to Configure WEP ............................................................................................4-9 Chapter 5 Protecting Your Network Protecting Access to Your DG824M Wireless ADSL Modem Gateway ..........................5-1 How to Change the Built-In Password .....................................................................5-1 vi Contents 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 Rules ..............................................................................................................................5-5 Inbound Rules (Port Forwarding) .............................................................................5-7 Inbound Rule Example: A Local Public Web Server ..........................................5-7 Inbound Rule Example: Allowing Videoconferencing ........................................5-9 Considerations for Inbound Rules .....................................................................5-9 Outbound Rules (Service Blocking) .......................................................................5-10 Outbound Rule Example: Blocking Instant Messenger ...................................5-10 Order of Precedence for Rules ..............................................................................5-12 Services ........................................................................................................................5-13 How to Define Services ..........................................................................................5-13 Setting Times and Scheduling Firewall Services ..........................................................5-14 How to Set Your Time Zone ...................................................................................5-14 How to Schedule Firewall Services ........................................................................5-16 Chapter 6 Managing Your Network Backing Up, Restoring, or Erasing Your Settings ................................................... ...