NETGEAR CG814WH Manuel utilisateur

NETGEAR CG814WH Wireless Cable Modem Gateway

NETGEAR CG814WH

Wireless Cable Modem Gateway

User Guide

Windows, and the Windows logo are registered trademarks

of Microsoft Corporation. All other trademarks and brand

names are the property of their respective proprietors.

FCC STATEMENT

The NETGEAR CG814WH has been tested and complies

with the specifications for a Class B digital device, pursuant

to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interface in a

residential installation. This equipment generates, uses, and

can radio frequency energy and, if not installed and used

according to the instructions, may cause harmful interference

to radio communications. However, there is no guarantee

that interference will not occur in a particular installation. If

this equipment does cause harmful interference to radio or

television reception, which is found by turning the equipment

off and on, the user is encouraged to try to correct the

interference by one or more of the following measure:

•Reorient or relocate the receiving antenna

•Increase the separation between the equipment of devices

•Connect the equipment to an outlet other than the receiver

•Consult a dealer or an experienced radio/TV technician for

assistance

NETGEAR CG814WH Wireless Cable Modem Gateway

Chapter 1: Introduction

Overview

Thank you for purchasing the NETGEAR CG814WH Wireless Cable Modem

Gateway. The NETGEAR CG814WH provides the ideal solution for

connecting your wireless network to a high-speed broadband Internet

connection and a 10/100 Fast Ethernet backbone. Configurable as a DHCP

server for your existing network, the NETGEAR CG814WH acts as the only

externally recognized Internet gateway on your local area network (LAN) and

serve as an Internet NAT firewall against unwanted outside intruders. The

NETGEAR CG814WH can also be configured to filter internal users’access to

the Internet.

A typical gateway relies on a hub or a switch to share its Internet connection,

but the NETGEAR CG814WH channels this connection through the blazing,

full duplex of its built-in 10/100 4-Port Switch. This cutting-edge combination of

wireless router and switch technology eliminates the need to buy an additional

hub or switch and extends the range of your wireless network. Now your entire

wireless network can enjoy blazing broadband Internet connections supported

by its robust switched backbone. With the dual-function speed and power of

the NETGEAR CG814WH, your network will take off at speeds faster than you

ever imagined possible.

Software Features

DOCSIS Features

lCable Modem (CM) is 1.0 and 1.1 upgradeable

lConcatenation, Fragmentation, Payload Header suppression, IGMP

and BPI and BPI Plus are supported features for DOCSIS 1.1

l4/16/32/64/128/256/512/1024 QAM Downstream Receiver

l2/4/8/16/32/64/128/256 QAM Advanced TDMA Upstream Transmitter

lBoth IP and LLC filters are supported

lSixteen (16) destination address filters and 256 multicast/unicast DA

filters

lSixteen (16) independent upstream queues for multiple QoS support

USB Features

lOS (Win2K, XP, WinME) supported for USB interface

NETGEAR CG814WH Wireless Cable Modem Gateway

Wireless Features

lSupports at least one beacon/DTIM interval of within the range

20-1000κμs

lSupports reception of fragmented packets

lSupports reception of RTS and generation of CTS

Firewall Features

lStateful Packet Inspection against both Denial of Service and

Distributed Denial of Service attacks and will protect against the

following:

ØReassembly attacks

ØSYN Attack (SYN Flood)

ØICMP Flood

ØPing of Death Attack

ØTear Drop Attack

ØIP Spoofing Attack

ØLAND Attack

ØJolt

ØWinnuke Attack (Netbios out-of-bound)

ØOverDrop

ØBONK, BOINK

ØBlind Spoofing

ØEcho/Chargen

ØStorm

ØSmurf Attack

ØMime Flood

lDe-Militarized Zone (DMZ) which allows a computer on the LAN to

expose all of its ports to the WAN that are not otherwise filtered

lLogged Events which all security incidents will be logged

lKeyword blocking is based on keywords in a URL and can be

specified by the user

NAT Requirements

The implementation of NAT must allow for specific port redirection. Listed

below are applications supported.

NETGEAR CG814WH Wireless Cable Modem Gateway

ØFTP

ØIRC

ØH.323

ØQuake

ØBlizzard games

ØChat ALG

ØReal Audio/Video

ØCUSEEME

ØNetmeeting

ØMS Games but not with game zone

ØDIABOLO II

ØActivision Games

ØPCAnywhere

ØSSL

ØNNTP

lPort Forwarding, incoming traffic that is not part of an existing

connection will be dropped unless the user specifies forwarding of the

server to a host on the LAN

Virtual Private Network (VPN) Feature

lHaving the ability to enable or disable PPTP and IPSec pass through

Minimum Requirements

„One RJ-45 Broadband Internet connection, with a Cable Modem

„One PC with an installed 10Mbps, 100Mbps, or 10/100 Mbps Ethernet

card (optional)

„TCP/IP network protocol for each PC

„UTP network cable with RJ-45 connector

„Microsoft Internet Explorer 4.0 or later, or Netscape Navigator 4.0 or later.

(5.0 and 4.7, respectively, are strongly recommended.)

„Windows 95, 98, Millennium, NT 4.0, 2000 or XP

Package Contents

R{1} Cable Modem

R{1} AC Power adapter

R{1} CAT.5 Ethernet cable {RJ-45}

NETGEAR CG814WH Wireless Cable Modem Gateway

Chapter2:UsingtheNETGEARCG814WH

All interface and status LEDs are provided on the front panel. The power

connectors, signal connectors, and Restore Factory Defaults/Reboot button

are on the rear panel.

The Restore factory settings Button

Briefly pressing the Reset Button will clear all of the Gateway’s data and

restore the factory defaults. This should be done only if you are experiencing

heavy routing problems, and only after you have exhausted all of the other

troubleshooting options. By resetting the Gateway, you run the risk of creating

conflicts between your PCs’ actual IP Addresses and what the Gateway thinks

their IP Addresses should be. You may be forced to reboot the entire

system(s).

If your Gateway locks up, simply power it down for 5 seconds by removing the

power cable from the Gateway’s Power Port. Leaving the power off for too

long could result in the loss of network connections.

NETGEAR CG814WH Wireless Cable Modem Gateway

Chapter3:ConnecttheGateway

Overview

Unlike a simple hub or switch, the Gateway’s setup consists of more than

simply plugging hardware together. You will have to configure your networked

PCs to accept the IP addresses that the Gateway assigns them (if applicable),

and you will also have to configure the Gateway with setting(s) provided by

your Internet Service Provider (ISP).

The installation technician from your ISP should have left the setup

information with you after installing your broadband connection. If not, you can

call your ISP to request the data.

Once you have the setup information you need for your specific type of

Internet connection, you can begin installation and setup of the Gateway.

Connecting Your Hardware Together and Booting Up

1. Before you begin, make sure that all of you hardware is powered off,

including the Gateway, PCs, hubs, and switches.

2. Connect one end of an Ethernet cable to one of the LAN ports (labeled 1, 2,

3, or 4) on the back of the Gateway and the other end to a standard port on

a network device, e.g., a PC, print server, hub, or switch. Repeat the above

step to connect more PCs or network devices to the Gateway.

3. Connect the cable from your ISP to the Cable port on the Gateway’s back

panel.

4. Connect the power-supply cable to the Power port on the rear of the

Gateway, then plug the supplied AC power cable into a power outlet and

power on the NETGEAR CG814WH.

•The Power LED on the front panel will light up green as soon as the

power adapter is connected properly.

•The Diag LED will light up red for a few seconds when the Gateway

NETGEAR CG814WH Wireless Cable Modem Gateway

goes through its self-diagnostic test. The LED will turn off when the

self-test is complete.

5. Power on the network devices that connected to the NETGEAR

CG814WH.

The Hardware Installation is complete. Continue to the next page to

configure your PCs with NETGEAR CG814WH.

NETGEAR CG814WH Wireless Cable Modem Gateway

Chapter4:ConfigureYourPCs

Overview

The instructions in this chapter will help you configure each of your computer

to be able to communicate with the Gateway.

To do this, you need to configure your PC’s network settings to obtain an IP (or

TCP/IP) address automatically (called DHCP). Computers use IP addresses to

communicate with each other across a network or the Internet.

Find out which operating system your computer is running, such as Windows

95, 98, Millennium, NT 4.0, 2000, or XP. You will need to know which operating

system your computer is running. You can find out by clicking the Start button

and then going to the Settings option. Then click Control Panel, and then

double-click the System icon. If your Start menu doesn’t have a Settings

option, you’re running Windows XP. Click the Cancel button when done.

You may need to do this for each computer you are connecting to the

Gateway.

Important: These instructions apply only to Windows 95, 98, Millennium, 2000,

or XP machines. For TCP/IP setup under Windows NT, see your Windows

manual. By default Windows 98, 2000, Me, and XP has TCP/IP installed and

set to obtain an IP address automatically.

The next few pages tell you, step by step, how to configure your network

settings based on the type of Windows operating system you are using. Make

sure that an Ethernet card or adapter has been successfully installed in each

PC you will configure.

Configuring Windows 98, ME and XP PCs

1. Go to the Network screen by click the Start button. Click Settings and then

Control Panel. From there, double-click the Network icon.

2. On the Configuration tab, select the TCP/IP line for the applicable Ethernet

NETGEAR CG814WH Wireless Cable Modem Gateway

adapter. Do not choose a TCP/IP entry whose name mentions DUN,

PPPoE, VPN, or AOL. If the work TCP/IP appears by itself, select that line.

(If there is no TCP/IP line listed, refer to“Appendix C: Installing the TCP/IP

Protocol.) Click the Properties button.

3. Click the IP Address tab. Select Obtain an IP address automatically.

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