NETGEAR DG834GT - page 76

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router

5-16 Protecting Your Network

August 2004

Contents

Main Page August 2004 Page Contents Page Page Page Page Page Page Page Chapter 1 About This Guide Audience, Conventions, Scope How to Use this Manual How to Print this Manual Page Chapter 2 Introduction About the Router Key Features 10 8 802.11g Wireless Networking A Powerful, True Firewall Easy Installation and Management Protocol Support Content Filtering Auto Sensing and Auto Uplink LAN Ethernet Connections Whats in the Box? The Routers Front Panel Page 2-8 Introduction The Routers Rear Panel Table 2-1. LED Descriptions Page Page Chapter 3 Connecting the Router to the Internet What You Need Before You Begin ADSL Microfilter Requirements Ethernet Cabling Requirements Computer Hardware Requirements LAN Configuration Requirements Internet Configuration Requirements Where Do I Get the Internet Configuration Parameters? Record Your Internet Connection Information Page Connecting the DG834GT to Your LAN How to Connect the Router 1. CONNECT ADSL FILTERS ON THE PHONE LINES. A 2. CONNECT THE DG834GT TO THE ADSL FILTER. B C Page Auto-Detecting Your Internet Connection Type Wizard-Detected PPPoE Login Account Setup Page Wizard-Detected IP Over ATM Account Setup Wizard-Detected Fixed IP (Static) Account Setup Testing Your Internet Connection Manually Configuring Your Internet Connection How to Perform Manual Configuration Page Page Page ADSL Settings Chapter 4 Wireless Configuration Considerations for a Wireless Network Observe Performance, Placement, and Range Guidelines Implement Appropriate Wireless Security Wireless Data Security Options Range: Up to 300 Feet Understanding Wireless Settings Page 10 8 Page How to Set Up and Test Basic Wireless Connectivity How to Restricting Wireless Access to Your Network Page Page Choosing WEP Authentication and Security Encryption Methods Page How to Configure WEP How to Configure WPA-PSK Chapter 5 Protecting Your Network Protecting Access to Your DG834GT 108 Mbps Super Wireless ADSL Router How to Change the Built-In Password Changing the Administrator Login Timeout Configuring Basic Firewall Services Blocking Keywords, Sites, and Services How to Block Keywords and Sites Page Firewall Rules Inbound Rules (Port Forwarding) Page Page Outbound Rules (Service Blocking) Page Order of Precedence for Rules Services How to Define Services Setting Times and Scheduling Firewall Services How to Set Your Time Zone How to Schedule Firewall Services Page Chapter 6 Managing Your Network Backing Up, Restoring, or Erasing Your Settings How to Back Up the Configuration to a File How to Restore the Configuration from a File How to Erase the Configuration Upgrading the Routers Firmware How to Upgrade the Router Firmware Network Management Information Viewing Router Status and Usage Statistics Click the Show Statistics button to display router usage statistics, as shown in Figure 6-3 below: Managing Your Network 6-5 Table 6-1. Menu 3.2 - Router Status Fields This screen shows the following statistics:. Page Page Viewing Attached Devices Viewing, Selecting, and Saving Logged Information Page Page Examples of Log Messages Enabling Security Event E-mail Notification Running Diagnostic Utilities and Rebooting the Router Enabling Remote Management Configuring Remote Management Page Chapter 7 Advanced Configuration Configuring Advanced Security Setting Up A Default DMZ Server Page Connect Automatically, as Required Disable Port Scan and DOS Protection Respond to Ping on Internet WAN Port MTU Size Configuring LAN IP Settings Page DHCP Page How to Configure LAN TCP/IP Settings Configuring Dynamic DNS How to Configure Dynamic DNS Using Static Routes Static Route Example How to Configure Static Routes Page Page Chapter 8 Troubleshooting Basic Functioning Power LED Not On Test LED Never Turns On or Test LED Stays On LAN or WAN Port LEDs Not On Troubleshooting the Web Configuration Interface Troubleshooting the ISP Connection ADSL link Obtaining a WAN IP Address Troubleshooting PPPoE or PPPoA Troubleshooting Internet Browsing Troubleshooting a TCP/IP Network Using the Ping Utility Testing the LAN Path to Your Router Testing the Path from Your Computer to a Remote Device Restoring the Default Configuration and Password Using the Reset button Problems with Date and Time Page Appendix A Technical Specifications Page Appendix B Network and Routing Basics Related Publications Basic Router Concepts What is a Router? Routing Information Protocol IP Addresses and the Internet Page Netmask Subnet Addressing Page B-6 Network and Routing Basics Table 8-1. Netmask Notation Translation Table for One Octet Table 8-2. Netmask Formats Private IP Addresses Single IP Address Operation Using NAT MAC Addresses and Address Resolution Protocol Related Documents Domain Name Server IP Configuration by DHCP Internet Security and Firewalls What is a Firewall? Stateful Packet Inspection Denial of Service Attack Ethernet Cabling Category 5 Cable Quality Inside Twisted Pair Cables Uplink Switches, Crossover Cables, and MDI/MDIX Switching Page Appendix C Preparing Your Network Preparing Your Computers for TCP/IP Networking Configuring Windows 95, 98, and Me for TCP/IP Networking Installing or Verifying Windows Networking Components Page Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me Locate your Network Neighborhood icon. Page Selecting the Windows Internet Access Method Verifying TCP/IP Properties Configuring Windows NT4, 2000 or XP for IP Networking Installing or Verifying Windows Networking Components DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4 DHCP Configuration of TCP/IP in Windows XP Page DHCP Configuration of TCP/IP in Windows 2000 Page Page DHCP Configuration of TCP/IP in Windows NT4 Page Verifying TCP/IP Properties for Windows XP, 2000, and NT4 Configuring the Macintosh for TCP/IP Networking MacOS 8.6 or 9.x MacOS X Verifying TCP/IP Properties for Macintosh Computers Verifying the Readiness of Your Internet Account Are Login Protocols Used? What Is Your Configuration Information? Obtaining ISP Configuration Information for Windows Computers Obtaining ISP Configuration Information for Macintosh Computers Page Page Appendix D Wireless Networking Basics Wireless Networking Overview Infrastructure Mode Ad Hoc Mode (Peer-to-Peer Workgroup) Network Name: Extended Service Set Identification (ESSID) Authentication and WEP Data Encryption 802.11 Authentication Open System Authentication Shared Key Authentication 802.11bAuthentication Open System Steps Overview of WEP Parameters 802.11bAuthentication Shared Key Steps Key Size WEP Configuration Options Wireless Channels WPA Wireless Security How Does WPA Compare to WEP? How Does WPA Compare to IEEE 802.11i? What are the Key Features of WPA Security? Page Wired Network with Optional 802.1x Port Based Network Access Control Wireless LAN Page Page Page Is WPA Perfect? Product Support for WPA Page Page Glossary