Netgear CG3000 Manuale utente

350 East Plumeria Drive

San Jose, CA 95134

USA

April 2011

202-10842-01

v1.0

Wireless Cable Gateway

CG3000

User Manual

2

NETGEAR Wireless Cable Gateway CG3000

No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated

into any language in any form or by any means without the written permission of NETGEAR, Inc.

P/N: Part Number TBD v1.0

Technical Support

When you register your product at http://www.netgear.com/register, we can provide you with faster expert

technical support and timely notices of product and software upgrades.

NETGEAR, Inc.

350 East Plumeria Drive

San Jose, CA 95134 USA

E-mail: [email protected]

Website:

http://www.netgear.com

Phone: 1-888-NETGEAR, for US & Canada only. For other countries, see your Support information card.

Trademarks

NETGEAR, the NETGEAR logo, ProSafe, Smart Wizard, and Auto Uplink are trademarks or registered

trademarks of NETGEAR, Inc. Microsoft, Windows, Windows NT, and Vista are registered trademarks of Microsoft

Corporation. Other brand and product names are registered trademarks or trademarks of their respective holders.

Statement of Conditions

To improve internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes

to the products described in this document without notice. NETGEAR does not assume any liability that may occur

due to the use or application of the product(s) or circuit layout(s) described herein.

3

Table of Contents

Chapter 1 Connect to the Internet

Gateway Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Gateway Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Install the Voice Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Check the Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Cable the Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Log In to Your Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Connect to the Internet and VoIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

View the Gateway Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Chapter 2 Wireless Configuration

Set Up Your Wireless Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Manually Configure The Wireless Settings. . . . . . . . . . . . . . . . . . . . . . . . .12

WPA or WPA2 Wireless Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

WEP Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Push 'N' Connect (WPS) Wireless Setup . . . . . . . . . . . . . . . . . . . . . . . . . .16

WPS Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Chapter 3 Content Filtering

View or Email Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Block Keywords, Sites, and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Block Keywords and Domains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Chapter 4 Manage Your Network

Gateway Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

MTA Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Signal Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Change Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Back Up and Restore Your Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Diagnostic Ping Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Chapter 5 Advanced Settings

Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Access Control by MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

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NETGEAR Wireless Cable Gateway CG3000

Firewall Rules: Port Blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Firewall Rules: Port Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Considerations for Port Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

WAN Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Assign a Computer as The DMZ Host . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Remove a Computer from Being a DMZ Computer: . . . . . . . . . . . . . . . 35

Dynamic DNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

LAN IP Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Reserving an IP Address for DHCP Use . . . . . . . . . . . . . . . . . . . . . . . . 37

Remote Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Universal Plug and Play (UPnP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Chapter 6 Troubleshooting

Basic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Using LEDs to Troubleshoot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Access the Gateway Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Troubleshoot the ISP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Troubleshoot a TCP/IP Network Using a Ping Utility . . . . . . . . . . . . . . . . .44

Test the LAN Path to Your Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Test the Path from Your PC to a Remote Device. . . . . . . . . . . . . . . . . . 45

Wireless Performance and Gateway Location . . . . . . . . . . . . . . . . . . . . . . 45

Appendix A Technical Specifications

Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Appendix B Notification of Compliance

Index

5

1

1. Connect to the Internet

This chapter describes how to configure your gateway’s Internet connection and includes these

sections:

• Gateway Front Panel on page 6.

• Gateway Rear Panel on page 7.

• Log In to Your Gateway on page 9.

• View the Gateway Status on page 10.

For information about product features and compatible NETGEAR products, see the NETGEAR

website at http://www.netgear.com.

For information about the topics covered in this manual, visit the Support website at

http://support.netgear.com.

For help installing the gateway, see the Wireless Cable Gateway CG3000 Quick Install Guide.

Note: For optimal performance, place the gateway vertically in the stand.

Do not mount this unit to a wall; it is not suitable for wall mounting.

Connect to the Internet

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NETGEAR Wireless Cable Gateway CG3000

Gateway Front Panel

Figure 1. Gateway front view

You can use the LEDs to verify status and connections. The following table lists and

describes each LED and button on the front panel of the gateway.

LED Description

Power

• Green. Power is supplied to the cable modem.

• Blinking. Power on self-test.

• Off. No power.

Downstream

• Green solid. One or more downstream channels is locked.

• Green slow blink. The unit is scanning for a downstream channel.

• Green blink. Data is being transmitted or received.

• Off: No downstream channel is locked.

Upstream

• Green solid. One or more upstream channels is locked.

• Green slow blink. The unit is scanning for an upstream channel.

• Green blink. Data is being transmitted or received.

• Off: No upstream channel is locked.

Internet

• Solid green. The cable modem is online.

• Blinking. The cable modem is synchronizing with the cable provider’s CMTS.

• Off: The cable modem is offline.

LAN (Ethernet)

Green indicates 1,000 Mbps. Amber indicates 100/10 Mbps.

• Solid. An Ethernet device is connected and powered on.

• Blinking. Data is being transmitted or received on the Ethernet port.

• Off. No Ethernet device is detected on the Ethernet port.

Phone Port

• Green Solid. Registered with the Call Agent.

• Green Blink. There is an active call.

• Green Slow Blink. Phone is on-hook, registration with Call Agent is in progress.

• Off. No phones are connected to the phone port.

Button Description

Wireless On/Off

Turn the wireless radio in the gateway on and off. The wireless radio is on by default. The

LED located below this button indicates if the wireless radio is on or off.

WPS

Pushing this button opens a 2-minute window for the gateway to connect with other

WPS-enabled devices. For more information, about using the WPS method to implement

security, see the Push 'N' Connect (WPS) Wireless Setup on page 16

Connect to the Internet

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NETGEAR Wireless Cable Gateway CG3000

Gateway Rear Panel

Ethernet LAN ports

USB

port

Coaxial

cable

connector

Power

adapter

input

Power On/Off

button

Voice ports

Figure 2. Gateway rear panel

The rear panel includes the following connections, viewed from left to right:

• Two voice/phone ports. WIth VoIP service, connect one or two handsets to these ports.

• Four Gigabit-Ethernet LAN ports. Use these ports to connect local computers.

• USB port. The USB port is a USB host and can be used for connecting a USB printer.

Note: USB functionality is only available with future firmware upgrades.

• Coaxial cable connector. Attach coaxial cable to the cable service provider’s connection.

• Power. Power adapter input.

• Power On/Off button.

Note: You can return the gateway to its factory settings. On the bottom of

the gateway, press and hold the Restore Factory Settings button

for over 7 seconds. The gateway resets, and returns to its factory

settings. See Factory Default Settings in Appendix A.

Install the Voice Gateway

Installation is the four-step process summarized here and described in the headings that

follow. Make sure you complete the installation in this order.

1. Check the Installation Requirements.

2. Cable the Gateway.

3. Log in to the Gateway.

4. Connect to the Internet.and VoIP.

Connect to the Internet

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NETGEAR Wireless Cable Gateway CG3000

After installation, set up the wireless connection as explained in Chapter 2, Wireless

Configuration.

Check the Installation Requirements

Check the requirements listed below before installing the gateway:

• Local Computer. During installation, you need a local computer to connect to the

gateway via Ethernet.

- This computer should be set up to access the cable modem Internet service.

- This computer must be set up to use DHCP to get its TCP/IP configuration from the

gateway.

• Cabling. Use a Category 5 (CAT5) cable such as the one provided with your gateway for

your LAN connections.

• Cable Modem Service. There must be active Data Over Cable Internet service provided

by cable modem account.

• Internet Service Provider (ISP) Configuration. Depending on how the ISP set up the

Internet account, you will need one or more of these configuration settings to connect the

gateway to the Internet:

- Host and Domain Names

- ISP Domain Name Server (DNS) Addresses

- Fixed or Static IP Address

• Computers on the Network. Each computer that will connect to the gateway must have

either an installed Ethernet Network Interface Card (NIC), USB Host port, or 802.11b or

802.11g wireless adapter.

Cable the Gateway

To install the gateway, connect it to a computer by an Ethernet according to the guidelines

below.

Ethernet Connection

If you are connecting a computer to the gateway with an Ethernet cable, following these

instructions.

1. Turn off your computer.

2. Use the coaxial cable provided by your cable company to connect the wireless voice

gateway cable port to your cable line splitter or outlet.

3. Connect the LAN port (for example, LAN port 4) on the gateway to your computer with the

Ethernet cable included in the box.

4. Plug in the gateway and wait about 30 seconds for the lights to stop blinking.

5. Turn on your computer. If software usually logs you in to your Internet connection, do not run

that software or cancel it if it starts automatically.

Connect to the Internet

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NETGEAR Wireless Cable Gateway CG3000

6. Verify the following:

a. The power light

is lit after turning on the gateway.

b. The Internet light

is solid green, indicating a link has been established to the

cable network.

c. The LAN LED

is lit for the port where you connected the computer.

Log In to Your Gateway

You can log in to the gateway to view its settings. A link to the documentation is also available

on the gateway main menu.

Note: To connect to the gateway you must use a computer configured for

DHCP (most computers are).

When you have logged in, if you do not click Logout, the gateway waits for 5 minutes after no

activity before it automatically logs you out.

1. On the computer that is connected to the gateway with an Ethernet cable, type

http://192.168.0.1 in the address field of your Internet browser.

A login window opens.

2. Log in with the user name admin and its default password of password.

When you connect to the gateway the Gateway Status screen displays.

Connect to the Internet

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NETGEAR Wireless Cable Gateway CG3000

To view the gateway’s settings for the Internet connection, see the following section, View

the Gateway Status on page 10.

Connect to the Internet and VoIP

If you have VoIP service, connect the phone to a Voice Port 1 . If your service includes

a second line, you can connect that phone to Voice Port 2.

To check the voice status, see MTA Status on page 24. To set up a wireless connection, see

Chapter 2, Wireless Configuration.

View the Gateway Status

The Gateway Status screen shows the Network Configuration for the gateway. Select

Gateway Status from the main menu and the Network Configuration section is in the middle

of the page.

D: 01 H: 00 M: 00

11

2

2. Wireless Configuration

Note: Before changing wireless settings, connect the gateway and set up

its Internet connection as described in the Wireless Cable Gateway

CG3000 Quick Install Guide.

This chapter includes:

• Set Up Your Wireless Network on page 12.

• Manually Configure The Wireless Settings on page 12.

• Push 'N' Connect (WPS) Wireless Setup on page 16.

• On the computer that just joined the wireless network, make sure you can connect to the

Internet. You should see the gateway’s Internet LED blink, showing that its Internet

connection is in use. on page 17..

Wireless Configuration

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NETGEAR Wireless Cable Gateway CG3000

Set Up Your Wireless Network

To set up the wireless network, you can enter wireless settings, (see Manually Configure The

Wireless Settings on page 12) or you can use Wi-Fi Protected Setup (WPS), described in

Push 'N' Connect (WPS) Wireless Setup on page 16. To wirelessly connect to the gateway, a

computer or wireless device must be configured with the same wireless settings as the

gateway.

• The default wireless network name (SSID) for the gateway is shown on the product label.

This product comes with a preconfigured Wi-Fi SSID and passphrase.

• By default the gateway works with WPA and WPA 2 wireless security. The default

passphrase is shown on the product label.

• To use Push 'N' Connect (WPS), your wireless computers and equipment must support

WPS technology. See

Push 'N' Connect (WPS) Wireless Setup on page 16.

Manually Configure The Wireless Settings

You can manually configure the wireless settings and security for your gateway from the

Wireless Settings screen.

1. If you are located near the gateway, use an Ethernet cable to connect your computer to

the gateway while you are changing the wireless settings.

Note: If you connect wirelessly to the gateway and then change its

wireless network name (SSID) or wireless security, you will be

disconnected after you click Apply.

Wireless Configuration

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NETGEAR Wireless Cable Gateway CG3000

2. Select Setup > Wireless Settings to display this screen.

3. Specify the Wireless Network settings.

• Name (SSID). The name of the wireless network.

• 802.11 Mode.This is set to Up to 11 b/g/n by default.

• Bandwidth. The rate of data transfer.

• SIdeband for Control Channel (40Mhz only). Sideband is a band of frequencies

that is either lower or higher than the carrier frequency. You would adjust this setting if

you want to refine the gateway’s use of electrical power and bandwidth.

• Control channel. Which operating channel is used. Normally, the channel is not

changed unless there are interference problems with a nearby access point. The

available channels depend on the region. Some countries have laws specifying which

channels can be used.

4. For help with Security Options, see the following sections

5. If you made changes, click Apply so that they take effect.

WPA or WPA2 Wireless Security

By default the gateway is set up to work with both WPA and WPA2 wireless security. (This

security option is already selected.) You can specify the Network Key, which works like a

password to access the wireless network.

Wireless Configuration

14

NETGEAR Wireless Cable Gateway CG3000

1. In the Security Options section of the Wireless Settings screen, leave the default setting

or

FINALAN0AS

select one of the WPA settings:

• WPA-PSK. This setting provides the TKIP encryption type and a pre-shared key

passphrase.

• WPA2-PSK. This setting provides the AES encryption type and a pre-shared key

passphrase.

2. Depending on the WPA settings that you select, enter the required information.

For WPA-PSK or WPA2-PSK, enter the pre-shared key, which is a passphrase between

8 and 63 characters. This product comes with a preconfigured WPA passphrase.

3. Click Apply to save your settings.

4. Configure your wireless computers with the same WPA2 or WPA settings as your gateway

so that you will be able to connect.

Wireless Configuration

15

NETGEAR Wireless Cable Gateway CG3000

WEP Security

Note: By default, the gateway is set up to work with WPA and WPA2

wireless security, both of which are newer than WEP. Typically, the

only reason you might need to set up WEP would be to allow access

to older wireless computers or devices that cannot support WPA.

1. On the Wireless Settings screen, select the WEP radio button under Security Options.

2. Select the Authentication type from the drop-down list.The default is Automatic.

3. Depending on the encryption strength that you want, select one of these WEP Encryption

options:

• 64-bit encryption

• 128-bit encryption

4. Enter a Passphrase (recommended) or WEP Keys:

• To use a passphrase and generate keys, enter a passphrase and click Generate.

• To enter the keys, fill in the Key 1 through Key 4 fields. Write down the keys and keep

them in a secure location.

- For 64-bit WEP, enter 10 hexadecimal digits (any combination of 0–9 or A–F). For

128-bit WEP, enter 26 hexadecimal digits.

- Select which key will be the default, which will be used to encrypt data

transmissions. The other keys can only be used to decrypt received data.

5. Click Apply to save your settings.

6. Configure your wireless computers with the same WEP settings as your gateway so that

you will be able to connect. If you entered the keys, you will need to type them exactly as

you did when you set up the gateway.

Wireless Configuration

16

NETGEAR Wireless Cable Gateway CG3000

Push 'N' Connect (WPS) Wireless Setup

Push 'N' Connect (WPS) can be a quick way to automatically set up your gateway’s wireless

network and set up your wireless computer to connect to it at the same time. WPS, also

called Wi-Fi Protected Setup, is relatively new technology, so before you decide to use it,

check to make sure your wireless computers and devices support WPS. Look for the

symbol on all the computers that will connect wirelessly to the gateway.

If you do not see the symbol on all the computers that will connect to the wireless

network, then you should manually set up your network first (see Manually Configure The

Wireless Settings ). After that, you can still use WPS to set up the wireless connection for the

computers that support WPS.

Note: All WPS-capable products should be compatible with the gateway.

For more detailed information about the WPS standard, see

http://www.wi-fi.org).

There are two Push 'N' Connect methods, Push Button and PIN (personal identification

number).

• Push Button. This is the preferred method. See the following section, WPS Button .

• PIN. See PIN on page 17.

WPS Button

You can use the WPS button to automatically set up wireless settings in your gateway and to

set up your wireless computer to connect to it.

1. First, make sure you know how WPS works on your computer or wireless device. If it

works with WPS, it has a WPS utility and might also have a WPS button that you can

press.

2. Select Add WPS Client and then click Next. The Add WPS Client screen displays:

Any computer or wireless device that will wirelessly connect to the gateway is a client.

After it is added as a client, it will be able to automatically connect to the gateway.

Wireless Configuration

17

NETGEAR Wireless Cable Gateway CG3000

3. Either click the WPS button, or press the button on the front of the gateway.

• The WPS LED on the front of the gateway begins to blink.

• The gateway tries to communicate with the wireless computer or device for 2 minutes.

• If the Security Option in the Wireless Settings screen was set to Disabled, it is

automatically changed to WPA-PSK [TKIP] + WPA2-PSK [AES] including a random

wireless security password.

4. Go to the wireless computer, and run its WPS configuration utility. Follow the utility’s

instructions to click a WPS button.

When the computer connects to the wireless network, the gateway sends its SSID and

WPA-PSK or WPA2-PSK configuration to that computer.

5. On the computer that just joined the wireless network, make sure you can connect to the

Internet. You should see the gateway’s Internet LED blink, showing that its Internet

connection is in use.

1. First, make sure you know how WPS works on your computer or wireless device. If it

works with WPS, it has a WPS utility. Use this utility to determine the PIN for your

wireless computer or device.

2. Select WPS Settings. The Add WPS Client screen displays.

Any computer or wireless device that will wirelessly connect to the gateway is a client.

After it is added as a client, it will be able to automatically connect to the gateway.

3. Select the PIN radio button.

4. Type the PIN that you located in Step 1 in the Enter Client’s PIN field, and then click Next.

• The WPS LED on the front of the gateway begins to blink.

• The gateway tries to communicate with the wireless computer or device for 4 minutes.

• If the Security Option in the Wireless Settings screen was set to Disabled, it is

automatically changed to WPA-PSK (including a PSK security password).

When the computer connects to the wireless network, the gateway sends its SSID and

WPA-PSK or WPA2-PSK configuration to that computer.

5. On the computer that just joined the wireless network, make sure you can connect to the

Internet. You should see the gateway’s Internet LED blink, showing that its Internet

connection is in use.

18

3

3. Content Filtering

This chapter describes how to use content filtering s for the gateway. This chapter includes:

• View or Email Logs on page 19.

• Block Keywords, Sites, and Services on page 19.

• Services on page 21.

Content Filtering

19

NETGEAR Wireless Cable Gateway CG3000

View or Email Logs

Your gateway logs security-related events such as Denial of Service (DoS) attacks, hacker

probes, and administrator logins, based on the settings on the Logs screen. If you set up

content filtering on the Block Sites screen, you can also log when someone on your network

tried to access a blocked site. You can specify which events are logged and you can send the

logs to the specified email address.

1. Select Content Filtering > Logs.

2. To use email, fill in the Contact Email Address and SMTP Server Name fields.

3. Select the Enable check box for E-mail Alerts.

4. Click Apply so your changes take effect.

5. To email the log now, click E-mail Log.

6. To delete all log entries. click Clear Log.

7. To see the most recent entries, click Refresh.

Block Keywords, Sites, and Services

With its content filtering feature, the gateway prevents objectionable content from reaching

your computers. The gateway allows you to control access to Internet content by screening

for keywords within Web addresses. It can also block access to all sites except those that are

explicitly allowed. For example, you can set up the gateway to do the following:

• Block access from to Internet locations that contain keywords that you specify.

• Block access to websites that you specify as off-limits.

• Allow access to only websites that you specify as allowed.

Content Filtering

20

NETGEAR Wireless Cable Gateway CG3000

Block Keywords and Domains

The gateway allows you to restrict access to Internet content based on functions such as

Web address keywords and Web domains. A domain name is the name of a particular

website. For example, for the address www.NETGEAR.com, the domain name is

NETGEAR.com.

1. Select Content Filtering > Block Sites.

2. To block keywords, select the Keyword Blocking Enable check box. Type the keyword and

then click Add Keyword.

• If the keyword XXX is specified, the URL www.zzzyyqq.com/xxx.html is blocked.

• If the keyword .com is specified, only websites with other domain suffixes (such as

.edu, .org, or .gov) can be viewed.

• Enter the keyword “.” to block all Internet browsing access.

• To remove a keyword from the Keyword List, select it, and click Remove Keyword.

3. To block domains, select the Domain Blocking Enable check box. Enter a domain and click

Add Domain.

• If the domain www.zzzyyqq.com is specified, the URL

<http://www.zzzyyqq.com/xxx.html> is blocked, along with all other URLs in the

www.zzzyyqq.com site.

• To remove a domain from the Domain List, select the domain, and then click Remove

Domain.

4. Click Apply to save your settings.

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