NETGEAR, Inc
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Trademarks
Statement of Conditions
EN 55 022 Declaration of Conformance
Certificate of the Manufacturer/Importer
Bestätigung des Herstellers/Importeurs
Voluntary Control Council for Interference VCCI Statement
Customer Support
Page
Connecting the Gateway to the Internet
Contents
Chapter
Chapter
Wireless Configuration
Connecting the CG814M Gateway
Considerations For A Wireless Network
Wireless Settings
Technical Specifications
Troubleshooting
Chapter
Appendix A
Preparing Your Network
Appendix C
Contents
Restarting the Network
Glossary
Contents
About This Manual
Audience
Typographical Conventions
Technical Support
Special Message Formats
Chapter Introduction
Key Features
About the CG814M Gateway
Built-in Cable Modem
A Powerful, True Firewall
Content Filtering
802.11b Standards-based Wireless Networking
Configurable Auto Uplink Ethernet Connection
USB Port
Protocol Support
Easy Installation and Management
The Firewall’s Front Panel
What’s in the Box?
LED Descriptions
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Introduction
Label
The Gateway’s Rear Panel
Introduction
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
What You Will Need Before You Begin
Chapter 2 Connecting the Gateway to the Internet
LAN Hardware Requirements
Computer Requirements
LAN Configuration Requirements
Internet Configuration Requirements
Where Do I Get the Internet Configuration Parameters?
You may also refer to the CG814W Resource CD for the NETGEAR Router ISP Guide which provides Internet connection infromation for many ISPs
Record Your Internet Connection Information
Connecting to Your Computer
Connecting the CG814M Gateway
Ethernet
Wireless
Connecting to your Cable Service Provider
Log in to the Gateway
Connecting the Power Adapter
A login window opens as shown in Figure 2-3 below
Figure 2-4 Connection page
4. Connect to the Internet
Configuration
Connecting the CG814M Gateway to the Internet
2. Enter your Host Name and Domain Name
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
6. Click Apply to save your settings
Connecting the Gateway to the Internet
5. Firewall Protection
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Connecting the Gateway to the Internet
2-14
Chapter Wireless Configuration
Considerations For A Wireless Network
Security
Placement and Range
Wireless Settings
Restricting Wireless Access by MAC Address
Wireless Settings
Configuring Wired Equivalent Privacy WEP
Be sure to click Apply to save your settings in this menu
Wireless Configuration
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Protecting Access to Your CG814M Gateway
Changing the Built-In Password
Chapter Protecting Your Network
Blocking Keywords, Sites, and Services
Block Keywords and Domains
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
1. Click on the Block Sites link of the Content Filtering menu
Figure 4-3 Block Sites menu
Protecting Your Network
Proxy
Blocking Services
Cookies
Port Blocking
Java Applets
ActiveX
Port Forwarding
To forward inbound traffic
Considerations for Port Forwarding
Port Triggering
changed
Respond to Ping on Internet WAN Port
Setting Up A Default DMZ Host
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
4-12
Protecting Your Network
Network Status Information
Chapter Managing Your Network
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Viewing Gateway Status
Figure 5-1 Gateway Status screen
Menu 3.2 - Router Status Fields
Menu 3.2 - Router Status Fields
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Managing Your Network
CM Certificate
Connection Status
Configuring LAN IP Settings
LAN IP Setup
Current System Time
Use router as DHCP server
DHCP
Viewing and Emailing Logged Information
Enabling Logs Event E-mail Notification
Erasing Configuration
Running Diagnostic Utilities
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
5-10
Managing Your Network
Go to “Troubleshooting the Web Configuration Interface“ on page
Chapter Troubleshooting
Go to “Erasing Configuration“ on page
Basic Functions
Power LED Not On
Test LED Stays On
Local Link LEDs Not On
Cable Link LED Not On
Troubleshooting the Web Configuration Interface
Troubleshooting the ISP Connection
Troubleshooting a TCP/IP Network Using a Ping Utility
Testing the LAN Path to Your Gateway
Testing the Path from Your PC to a Remote Device
Check that your Cable Link LED is on
Appendix A Technical Specifications
DOCSIS 1.0, upgradeable to DOCSIS
802.11b Wireless Access Point
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Technical Specifications
Appendix B Networks, Routing, and Firewall Basics
Related Publications
Basic Router Concepts
What is a Router?
Routing Information Protocol
IP Addresses and the Internet
The five address classes are Class A
Netmask
Figure 6-2 Example of Subnetting a Class B Address
Subnet Addressing
Table 6-2. Netmask Formats
Table 6-1. Netmask Notation Translation Table for One Octet
Number of Bits
Dotted-Decimal Value
Private IP Addresses
Single IP Address Operation Using NAT
Related Documents
MAC Addresses and Address Resolution Protocol
IP Configuration by DHCP
Internet Security and Firewalls
Domain Name Server
What is a Firewall?
Denial of Service Attack
Stateful Packet Inspection
Wireless Network Configuration
Wireless Networking
Ad-hoc Mode Peer-to-Peer Workgroup
Infrastructure Mode
Authentication and WEP Encryption
Extended Service Set Identification ESSID
Wireless Channel Selection
Ethernet Cabling
Uplink Switches and Crossover Cables
Cable Quality
Preparing Your Computers for TCP/IP Networking
Appendix C Preparing Your Network
Install or Verify Windows Networking Components
Configuring Windows 95, 98, and ME for TCP/IP Networking
If you need to install a new adapter, follow these steps
Selecting Windows’ Internet Access Method
Enabling DHCP to Automatically Configure TCP/IP Settings
Configuring Windows NT, 2000 or XP for IP Networking
Verifying TCP/IP Properties
Install or Verify Windows Networking Components
MacOS 8.6 or
Configuring the Macintosh for TCP/IP Networking
3. Type ipconfig /all
Verifying TCP/IP Properties
MacOS
Verifying TCP/IP Properties for Macintosh Computers
Verifying the Readiness of Your Internet Account
What Is Your Configuration Information?
mail.xxx.yyy.com
Obtaining ISP Configuration Information for Windows Computers
Obtaining ISP Configuration Information for Macintosh Computers
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Restarting the Network
C-12
Preparing Your Network
Glossary
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Glossary
networks
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
Glossary
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
private networks by using a public network such as the Internet as a
Reference Manual for the Model CG814M Wireless Cable Modem Gateway