Document Outline

• Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• Contents
• Preface About This Guide
  • Audience
  • Technical Support
  • Typographical Conventions
  • Special Message Formats
• Chapter 1 Introduction
  • About the Gateway
  • Key Features
    • 802.11b Standards-based Wireless Networking
    • A Powerful, True Firewall
    • Content Filtering
    • Auto Sensing and Auto Uplink™ LAN Ethernet Connections
    • Protocol Support
    • Easy Installation and Management
  • What’s in the Box?
    • The Gateway’s Front Panel
    • The Gateway’s Rear Panel
• Chapter 2 Connecting the Gateway to the Internet
  • What You Will Need Before You Begin
    • Cabling Requirements
    • Computer Hardware Requirements
    • LAN Configuration Requirements
    • Internet Configuration Requirements
    • Where Do I Get the Internet Configuration Parameters?
  • Procedure 2-1: Record Your Internet Connection Information
    • Connecting the DG824M Wireless ADSL Modem Gateway to Your LAN
  • Procedure 2-2: Connecting the Gateway
    • Connecting the DG824M to the Internet
  • Procedure 2-3: Auto-Detecting Your Internet Connection Type
  • Procedure 2-4: Wizard-Detected PPPoE Login Account Setup
  • Procedure 2-5: Wizard-Detected PPPoA Login Account Setup
  • Procedure 2-6: Wizard-Detected Dynamic IP Account Setup
  • Procedure 2-7: Wizard-Detected Fixed IP (Static) Account Setup
    • Testing Your Internet Connection
    • Manually Configuring Your Internet Connection
  • Procedure 2-8: Manual Configuration
• Chapter 3 Wireless Configuration
  • Considerations For A Wireless Network
    • Implement Appropriate Security
    • Observe Placement and Range Guidelines
  • Wireless Settings
  • Procedure 3-1: Configuring Basic Wireless Network Settings
    • Using the Wireless Access by MAC Address Feature
  • Procedure 3-2: Restricting Wireless Access by MAC Address
    • Configuring Wired Equivalent Privacy (WEP)
    • Configuring WEP (Wired Equivalent Privacy)
• Chapter 4 Protecting Your Network
  • Protecting Access to Your DG824M Wireless ADSL Modem Gateway
  • Procedure 4-1: Changing the Built-In Password
  • Procedure 4-1: Changing the Administrator Login Timeout
    • Configuring Basic Firewall Services
      • Blocking Keywords, Sites, and Services
  • Procedure 4-2: Block Keywords and Sites
    • Rules
      • Inbound Rules (Port Forwarding)
      • Outbound Rules (Service Blocking)
      • Order of Precedence for Rules
    • Services
  • Procedure 4-3: Define Services
    • Setting Times and Scheduling Firewall Services
  • Procedure 4-4: Setting Your Time Zone
  • Procedure 4-5: Scheduling Firewall Services
• Chapter 5 Managing Your Network
  • Backing Up, Restoring, or Erasing Your Settings
  • Upgrading the Gateway’s Firmware
  • Network Management Information
    • Viewing Gateway Status and Usage Statistics
    • Viewing Attached Devices
    • Viewing, Selecting, and Saving Logged Information
    • Examples of log messages
  • Enabling Security Event E-mail Notification
  • Running Diagnostic Utilities and Rebooting the Router
  • Enabling Remote Management
• Chapter 6 Advanced Configuration
  • Configuring Advanced Security
    • Setting Up A Default DMZ Server
  • Procedure 6-1: Configuring A Default DMZ Server.
    • Respond to Ping on Internet WAN Port
    • Configuring LAN IP Settings
      • LAN TCP/IP Setup
  • Procedure 6-1: Configure LAN TCP/IP Setup
    • Configuring Dynamic DNS
  • Procedure 6-2: Configure Dynamic DNS
    • Using Static Routes
      • Static Route Example
  • Procedure 6-3: Configuring Static Routes
• Chapter 7 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 PC to a Remote Device
  • Restoring the Default Configuration and Password
    • Using the Default Reset button
  • Problems with Date and Time
• Appendix A Technical Specifications
• Appendix B Network and Routing Basics
  • Related Publications
  • Basic Router Concepts
    • What is a Router?
    • Routing Information Protocol
    • IP Addresses and the Internet
    • Netmask
    • Subnet Addressing
    • Private IP Addresses
    • Single IP Address Operation Using NAT
    • MAC Addresses and Address Resolution Protocol
    • Related Documents
    • Domain Name Server
    • IP Configuration by DHCP
  • Ethernet Cabling
    • Uplink Switches and Crossover Cables
    • Cable Quality
  • Internet Security and Firewalls
    • What is a Firewall?
    • Stateful Packet Inspection
    • Denial of Service Attack
  • Wireless Networking
    • Wireless Network Configuration
    • Extended Service Set Identification (ESSID)
    • Authentication and WEP Encryption
    • Wireless Channel Selection
• Appendix C Preparing Your Network
  • Preparing Your Computers for TCP/IP Networking
  • Configuring Windows 95, 98, and Me for TCP/IP Networking
    • Install or Verify Windows Networking Components
    • Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me
    • Selecting Windows’ Internet Access Method
    • Verifying TCP/IP Properties
  • Configuring Windows NT4, 2000 or XP for IP Networking
    • Install or Verify Windows Networking Components
    • DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4
    • DHCP Configuration of TCP/IP in Windows XP
    • DHCP Configuration of TCP/IP in Windows 2000
    • DHCP Configuration of TCP/IP in Windows NT4
    • 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
  • Restarting the Network
• Glossary
• Index