Main
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Contents
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List of Procedures
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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
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Whats in the Box?
Wireless ADSL Modem Gateway DG824M
The Gateways Front Panel
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Introduction 1-7
Table 1-1. LED Descriptions
The Gateways 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?
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Procedure 2-1: Record Your Internet Connection Information
Connecting the DG824M Wireless ADSL Modem Gateway to Your LAN
Procedure 2-2: Connecting the Gateway
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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
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Procedure 2-6: Wizard-Detected Dynamic IP Account Setup
Procedure 2-7: Wizard-Detected Fixed IP (Static) Account Setup
Testing Your Internet Connection
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Procedure 2-8: Manual Configuration
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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)
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Chapter 4 Protecting Your Network
Protecting Access to Your DG824M Wireless ADSL Modem Gateway
Procedure 4-1: Changing the Built-In Password
backup so that the saved settings file includes the new password.
Procedure 4-1: Changing the Administrator Login Timeout
Configuring Basic Firewall Services
Blocking Keywords, Sites, and Services
communications services.
Procedure 4-2: Block Keywords and Sites
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Rules
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Inbound Rules (Port Forwarding)
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Outbound Rules (Service Blocking)
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Order of Precedence for Rules
Services
Procedure 4-3: Define Services
Setting Times and Scheduling Firewall Services
Procedure 4-4: Setting Your Time Zone
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Procedure 4-5: Scheduling Firewall Services
Chapter 5 Managing Your Network
Backing Up, Restoring, or Erasing Your Settings
Procedure 5-6: Backup the Configuration to a File
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Procedure 5-7: Restore a Configuration from a File
Procedure 5-8: Erase the Configuration
Upgrading the Gateways Firmware
Procedure 5-1: Gateway Upgrade
Network Management Information
Viewing Gateway Status and Usage Statistics
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
5-6 Managing Your Network
This screen shows the following paramet ers:
Table 5-1. Menu 3.2 - Gateway Status Fields
This screen shows the following statistics :.
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Viewing Attached Devices
Viewing, Selecting, and Saving Logged Information
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Examples of log messages
Enabling Security Event E-mail Notification
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Running Diagnostic Utilities and Rebooting the Router
Enabling Remote Management
Procedure 5-2: Configure Remote Management
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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
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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
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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
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Appendix A Technical Specifications
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Appendix B Network and Routing Basics
Related Publications
Basic Router Concepts
What is a Router?
Routing Information Protocol
IP Addresses and the Internet
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Netmask
Subnet Addressing
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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
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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
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Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me
Locate your Network Neighborhood icon.
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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
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DHCP Configuration of TCP/IP in Windows 2000
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DHCP Configuration of TCP/IP in Windows NT4
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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
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Glossary
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Index
Index 1
Numerics
A
B
G
H
I
L
M
R
S
T
U
W
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