Manuali utente per Netgear CG814WB

Sommario

• Reference Manual for the Model CG814W Wireless Cable Modem Gateway

  1
• Contents

  5
  • About This Manual

    5
  • Chapter 1 Introduction 1-1

    5
  • Chapter 2 Connecting the Gateway to the Internet 2-1

    5
  • Chapter 3 Wireless Configuration 3-1

    5
  • Chapter 4 Protecting Your Network 4-1

    6
  • Chapter 5 Managing Your Network 5-1

    6
  • Chapter 6 Troubleshooting 6-1

    6
  • Appendix A Technical Specifications A-1

    7
  • Appendix B Networks, Routing, and Firewall Basics B-1

    7
  • Appendix C Preparing Your Network C-1

    8
  • Glossary G-1

    8
• About This Manual

  9
  • Audience

    9
  • Typographical Conventions

    9
  • Special Message Formats

    10
  • Technical Support

    10
• Chapter 1 Introduction

  11
  • About the CG814W Gateway

    11
  • Key Features

    11
    • Built-in Cable Modem

      11
    • A Powerful, True Firewall

      12
    • Content Filtering

      12
    • 802.11b Standards-based Wireless Networking

      12
    • Configurable Auto Uplink™ Ethernet Connection

      13
    • USB Port

      13
    • Protocol Support

      13
    • Easy Installation and Management

      14
  • What’s in the Box?

    15
    • The Gateway’s Front Panel

      15
      • Table 11. LED Descriptions

        15
    • The Gateway’s Rear Panel

      16
• Chapter 2 Connecting the Gateway to the Internet

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  • What You Will Need Before You Begin

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    • Hardware Requirements

      19
    • LAN Configuration Requirements

      19
    • Internet Configuration Requirements

      20
    • Where Do I Get the Internet Configuration Parameters?

      20
    • Record Your Internet Connection Information

      21
  • Connecting the CG814W Gateway

    22
• Chapter 3 Wireless Configuration

  29
  • Considerations For A Wireless Network

    29
    • Implement Appropriate Security

      29
    • Observe Placement and Range Guidelines

      30
  • Configuring Wireless Settings

    31
    • Wireless Network Settings

      31
    • Restricting Wireless Access by MAC Address

      32
      • Configuring Wired Equivalent Privacy (WEP)

        34
• Chapter 4 Protecting Your Network

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  • Protecting Access to Your CG814W Gateway

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    • Procedure 4-1: Changing the Built-In Password

      35
  • Blocking Keywords, Sites, and Services

    36
    • Procedure 4-2: Blocking Keywords and Domains

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  • Using Port Blocking

    38
  • Port Forwarding

    40
  • Using Port Triggering

    42
  • Setting Up A Default DMZ Host

    44
    • Respond to Ping on Internet WAN Port

      44
• Chapter 5 Managing Your Network

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  • Network Status Information

    45
    • Viewing Gateway Status

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      • Table 51. Menu 3.2 - Router Status Fields

        46
    • Connection Status

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      • Current System Time

        47
  • Configuring LAN IP Settings

    48
  • LAN IP Setup

    48
    • Using the Gateway as a DHCP Server

      49
      • DHCP Client Lease Info

        50
  • Viewing and Emailing Logged Information

    51
    • Enabling Logs Event E-mail Notification

      51
  • Erasing Configuration

    52
  • Running Diagnostic Utilities

    52
• Chapter 6 Troubleshooting

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  • Basic Functions

    55
    • Power LED Not On

      56
    • Test LED Stays On

      56
    • Local Link LEDs Not On

      56
    • Cable Link LED Not On

      57
  • Troubleshooting the Web Configuration Interface

    57
  • Troubleshooting the ISP Connection

    58
  • Troubleshooting a TCP/IP Network Using a Ping Utility

    58
    • Testing the LAN Path to Your Gateway

      58
    • Testing the Path from Your PC to a Remote Device

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• Appendix A Technical Specifications

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• Appendix B Networks, Routing, and Firewall Basics

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  • Related Publications

    63
  • Basic Router Concepts

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    • What is a Router?

      64
    • Routing Information Protocol

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    • IP Addresses and the Internet

      64
    • Netmask

      66
    • Subnet Addressing

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      • Table 61. Netmask Notation Translation Table for One Octet

        68
      • Table 62. Netmask Formats

        68
    • Private IP Addresses

      69
    • Single IP Address Operation Using NAT

      70
    • MAC Addresses and Address Resolution Protocol

      71
    • Related Documents

      71
    • Domain Name Server

      72
    • IP Configuration by DHCP

      72
  • Internet Security and Firewalls

    72
    • What is a Firewall?

      73
    • Stateful Packet Inspection

      73
    • Denial of Service Attack

      73
  • Wireless Networking Overview

    74
    • Infrastructure Mode

      74
    • Ad Hoc Mode (Peer-to-Peer Workgroup)

      74
    • Network Name: Extended Service Set Identification (ESSID)

      75
  • Authentication and WEP

    75
    • 802.11b Authentication

      75
    • Open System Authentication

      76
    • Shared Key Authentication

      77
    • Overview of WEP Parameters

      78
    • Key Size

      78
    • WEP Configuration Options

      79
  • Wireless Channels

    80
    • Table 61. 802.11 Radio Frequency Channels

      81
  • Ethernet Cabling

    82
    • Table 62. UTP Ethernet cable wiring, straight-through

      82
    • Uplink Switches and Crossover Cables

      82
    • Cable Quality

      83
• Appendix C Preparing Your Network

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  • Preparing Your Computers for TCP/IP Networking

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  • Configuring Windows 95, 98, and Me for TCP/IP Networking

    86
    • Install or Verify Windows Networking Components

      86
    • Enabling DHCP in Windows 95B, 98, and Me

      88
    • Selecting Windows’ Internet Access Method

      90
    • Verifying TCP/IP Properties

      90
  • Configuring Windows NT4, 2000 or XP for IP Networking

    91
    • Install or Verify Windows Networking Components

      91
    • DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4

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    • DHCP Configuration of TCP/IP in Windows XP

      92
    • DHCP Configuration of TCP/IP in Windows 2000

      95
    • DHCP Configuration of TCP/IP in Windows NT4

      98
    • Verifying TCP/IP Properties for Windows XP, 2000, and NT4

      100
  • Configuring the Macintosh for TCP/IP Networking

    101
    • MacOS 8.6 or 9.x

      101
    • MacOS X

      102
    • Verifying TCP/IP Properties for Macintosh Computers

      102
  • Verifying the Readiness of Your Internet Account

    103
    • Are Login Protocols Used?

      103
    • What Is Your Configuration Information?

      103
    • Obtaining ISP Configuration Information for Windows Computers

      104
    • Obtaining ISP Configuration Information for Macintosh Computers

      105
  • Restarting the Network

    106
• Glossary

  107