ZyXEL Communications G-570S User Manual

ZyXEL G-570S

802.11g Wireless Access Point

User’s Guide

Version 1.00

11/2005

ZyXEL G-570S User’s Guide

Copyright © 2005 by ZyXEL Communications Corporation.

The contents of this publication may not be reproduced in any part or as a whole, transcribed,
stored in a retrieval system, translated into any language, or transmitted in any form or by any
means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or
otherwise, without the prior written permission of ZyXEL Communications Corporation.

Published by ZyXEL Communications Corporation. All rights reserved.

Disclaimer

ZyXEL does not assume any liability arising out of the application or use of any products, or
software described herein. Neither does it convey any license under its patent rights nor the
patent rights of others. ZyXEL further reserves the right to make changes in any products
described herein without notice. This publication is subject to change without notice.

Copyright

Trademarks

ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL
Communications, Inc. Other trademarks mentioned in this publication are used for
identification purposes only and may be properties of their respective owners.

2 Copyright

ZyXEL G-570S User’s Guide

Interference Statements and

Certifications

Federal Communications Commission (FCC) Interference Statement

This device complies with Part 15 of FCC rules. Operation is subject to the following two
conditions:

• This device may not cause harmful interference.

• This device must accept any interference received, including interference that may cause
undesired operations.

This equipment has been tested and found to comply with the limits for a Class B digital
device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy, and if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.

If this equipment does cause harmful interference to radio/television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Caution

1 To comply with FCC RF exposure compliance requirements, a separation distance of at

least 20 cm must be maintained between the antenna of this device and all persons.

2 This transmitter must not be co-located or operating in conjunction with any other

antenna or transmitter.

Notice 1

Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.

This product has been designed for the WLAN 2.4 GHz network throughout the EC region and
Switzerland, with restrictions in France.

This Class B digital apparatus complies with Canadian ICES-003.

Interference Statements and Certifications 3

ZyXEL G-570S User’s Guide

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

Certifications

1 Go to www.zyxel.com.

2 Select your product from the drop-down list box on the ZyXEL home page to go to that

product's page.

3 Select the certification you wish to view from this page.

4 Interference Statements and Certifications

ZyXEL G-570S User’s Guide

Safety Warnings

For your safety, be sure to read and follow all warning notices and instructions.

• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel can
service the device. Please contact your vendor for further information.

• Connect the power cord to the right supply voltage (110V AC in North America or 230V
AC in Europe).

• Place connecting cables carefully so that no one will step on them or stumble over them.
Do NOT allow anything to rest on the power cord and do NOT locate the product where
anyone can walk on the power cord.

• If you wall mount your device, make sure that no electrical, gas or water pipes will be
damaged.

• Do NOT install nor use your device during a thunderstorm. There may be a remote risk of
electric shock from lightning.

• Do NOT expose your device to dampness, dust or corrosive liquids.

• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.

• Make sure to connect the cables to the correct ports.

• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your
device.

• Do NOT store things on the device.

• Connect ONLY suitable accessories to the device.

Safety Warnings 5

ZyXEL G-570S User’s Guide

ZyXEL warrants to the original end user (purchaser) that this product is free from any defects
in materials or workmanship for a period of up to two years from the date of purchase. During
the warranty period, and upon proof of purchase, should the product have indications of failure
due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the
defective products or components without charge for either parts or labor, and to whatever
extent it shall deem necessary to restore the product or components to proper operating
condition. Any replacement will consist of a new or re-manufactured functionally equivalent
product of equal value, and will be solely at the discretion of ZyXEL. This warranty shall not
apply if the product is modified, misused, tampered with, damaged by an act of God, or
subjected to abnormal working conditions.

Note

Repair or replacement, as provided under this warranty, is the exclusive remedy of the
purchaser. This warranty is in lieu of all other warranties, express or implied, including any
implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in
no event be held liable for indirect or consequential damages of any kind of character to the
purchaser.

ZyXEL Limited Warranty

To obtain the services of this warranty, contact ZyXEL's Service Center for your Return
Material Authorization number (RMA). Products must be returned Postage Prepaid. It is
recommended that the unit be insured when shipped. Any returned products without proof of
purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of
ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products
will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty
gives you specific legal rights, and you may also have other rights that vary from country to
country.

6 ZyXEL Limited Warranty

ZyXEL G-570S User’s Guide

Customer Support

Please have the following information ready when you contact customer support.

• Product model and serial number.

• Warranty Information.

• Date that you received your device.

• Brief description of the problem and the steps you took to solve it.

METHOD

LOCATION

CORPORATE
HEADQUARTERS
(WORLDWIDE)

CZECH REPUBLIC

DENMARK

FINLAND

FRANCE

GERMANY

HUNGARY

KAZAKHSTAN

NORTH AMERICA

NORWAY

SUPPORT E-MAIL TELEPHONE

SALES E-MAIL FAX FTP SITE

[e-mail] [phone] www.zyxel.com

[e-mail] [phone] ftp.zyxel.com

[e-mail] [phone] www.zyxel.cz ZyXEL Communications

[e-mail] [phone]

[e-mail] [phone] www.zyxel.dk ZyXEL Communications A/S

[e-mail] [phone]

[e-mail] [phone] www.zyxel.fi ZyXEL Communications Oy

[e-mail] [phone]

[e-mail] [phone] www.zyxel.fr ZyXEL France

[phone]

[e-mail] [phone] www.zyxel.de ZyXEL Deutschland GmbH.

[e-mail] [phone]

[e-mail] [phone] www.zyxel.hu ZyXEL Hungary

[e-mail] [phone]

http://zyxel.kz/support [phone] www.zyxel.kz ZyXEL Kazakhstan

[e-mail] [phone]

[e-mail] 1-800-255-4101

[phone]

[e-mail] [phone] ftp.us.zyxel.com

[e-mail] [phone] www.zyxel.no ZyXEL Communications A/S

[e-mail] [phone]

A

WEB SITE

www.europe.zyxel.com

ftp.europe.zyxel.com

www.us.zyxel.com ZyXEL Communications Inc.

REGULAR MAIL

ZyXEL Communications Corp.
6 Innovation Road II

Science Park
Hsinchu 300
Ta iw a n

Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika

Columbusvej
2860 Soeborg
Denmark

Malminkaari 10
00700 Helsinki
Finland

1 rue des Vergers
Bat. 1 / C
69760 Limonest
France

Adenauerstr. 20/A2 D-52146
Wuerselen
Germany

48, Zoldlomb Str.
H-1025, Budapest
Hungary

43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan

1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.

Nils Hansens vei 13
0667 Oslo
Norway

Customer Support 7

ZyXEL G-570S User’s Guide

METHOD

LOCATION

POLAND

RUSSIA

SPAIN

SWEDEN

UKRAINE

UNITED KINGDOM

a. “+” is the (prefix) number you enter to make an international telephone call.

SUPPORT E-MAIL TELEPHONE

SALES E-MAIL FAX FTP SITE

[e-mail] [phone] www.pl.zyxel.com ZyXEL Communications

[phone]

http://zyxel.ru/support [phone] www.zyxel.ru ZyXEL Russia

[e-mail] [phone]

[e-mail] [phone] www.zyxel.es ZyXEL Communications

[e-mail] [phone]

[e-mail] [phone] www.zyxel.se ZyXEL Communications A/S

[e-mail] [phone]

[e-mail] [phone] www.ua.zyxel.com ZyXEL Ukraine

[e-mail] [phone]

[e-mail] [phone]

08707 555779 (UK only)

[e-mail] [phone] ftp.zyxel.co.uk

A

WEB SITE

REGULAR MAIL

ul.Emilli Plater 53
00-113 Warszawa
Poland

Ostrovityanova 37a Str.
Moscow, 117279
Russia

Alejandro Villegas 33
1º, 28043 Madrid
Spain

Sjöporten 4, 41764 Göteborg
Sweden

13, Pimonenko Str.
Kiev, 04050
Ukraine

www.zyxel.co.uk ZyXEL Communications UK

Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)

8 Customer Support

ZyXEL G-570S User’s Guide

Table of Contents

Copyright ..................................................................................................................2

Interference Statements and Certifications ........................................................... 3

Safety Warnings ....................................................................................................... 5

ZyXEL Limited Warranty.......................................................................................... 6

Customer Support.................................................................................................... 7

Table of Contents ..................................................................................................... 9

List of Figures ........................................................................................................ 13

List of Tables .......................................................................................................... 17

Preface ....................................................................................................................19

Chapter 1

Getting to Know Your G-570S ............................................................................... 21

1.1 Introducing the G-570S Wireless Access Point .................................................21

1.2 G-570S Features ................................................................................................21

1.3 Applications for the G-570S ...............................................................................24

1.3.1 Access Point for Internet Access ..............................................................24

1.3.2 Corporate Network Access Application ....................................................24

1.3.3 Wireless Client Application .......................................................................25

1.3.4 Bridge / Repeater ......................................................................................26

1.3.5 Access Point and Repeater ......................................................................27

1.4 The LED Display ................................................................................................27

Chapter 2

Management Computer Setup .............................................................................. 29

2.1 Introduction ........................................................................................................29

2.2 Wired Connection ...............................................................................................29

2.2.1 Setting Up Your Computer's IP Address ...................................................29

2.2.1.1 Windows 2000/NT/XP .....................................................................30

2.3 Wireless Connection ..........................................................................................32

2.4 Restarting the G-570S .......................................................................................33

2.5 Resetting the G-570S .........................................................................................33

2.5.1 Methods of Restoring Factory-Defaults ....................................................33

Table of Contents 9

ZyXEL G-570S User’s Guide

Chapter 3

Introducing the Web Configurator........................................................................ 35

3.1 Web Configurator Overview ...............................................................................35

3.2 Accessing the G-570S Web Configurator ..........................................................35

3.3 Configuring the G-570S Using the Wizard .........................................................37

3.4 Navigating the Advanced Screens .....................................................................43

3.4.1 Navigation Panel .......................................................................................44

Chapter 4

Status Screens ....................................................................................................... 47

Chapter 5

System Screen ....................................................................................................... 53

5.1 TCP/IP Parameters ............................................................................................53

5.1.1 IP Address Assignment ............................................................................53

5.1.2 IP Address and Subnet Mask ...................................................................53

3.3.3.1 Disable ............................................................................................39

3.3.3.2 WEP ................................................................................................40

3.3.3.3 WPA(2)-PSK ....................................................................................41

Chapter 6

Wireless Screens ................................................................................................... 57

6.1 Wireless LAN Overview .....................................................................................57

6.1.1 IBSS ..........................................................................................................57

6.1.2 BSS ...........................................................................................................57

6.1.3 ESS ...........................................................................................................58

6.2 Wireless LAN Basics ..........................................................................................59

6.2.1 Channel ....................................................................................................59

6.2.2 SSID .........................................................................................................59

6.2.3 RTS/CTS .................................................................................................60

6.2.4 Fragmentation Threshold ..........................................................................61

6.3 Configuring Wireless ..........................................................................................61

6.4 Wireless Security Overview ...............................................................................73

6.4.1 Encryption .................................................................................................74

6.4.2 Authentication ...........................................................................................74

6.4.3 Restricted Access .....................................................................................74

6.4.4 Hide G-570S Identity ................................................................................75

6.5 WEP Overview ...................................................................................................75

6.5.1 Data Encryption .......................................................................................75

6.5.2 Authentication ...........................................................................................75

6.6 802.1x Overview ................................................................................................76

6.7 Introduction to RADIUS ......................................................................................76

6.7.1 Types of RADIUS Messages ....................................................................76

10 Table of Contents

ZyXEL G-570S User’s Guide

6.8 EAP Authentication Overview ............................................................................77

6.9 Dynamic WEP Key Exchange ............................................................................78

6.10 Introduction to WPA and WPA2 ........................................................................78

6.10.1 Encryption ..............................................................................................79

6.10.2 User Authentication ...............................................................................79

6.11 WPA(2)-PSK Application Example ...................................................................79

6.12 WPA(2) with RADIUS Application Example .....................................................80

6.13 Security Parameters Summary ........................................................................81

6.14 Wireless Client WPA Supplicants .....................................................................81

6.15 Configuring Wireless Security ..........................................................................81

6.17.1 Enabling OTIST ......................................................................................89

6.17.1.1 AP .................................................................................................89

6.17.1.2 Wireless Client ..............................................................................90

6.17.2 Starting OTIST ........................................................................................91

6.17.3 Notes on OTIST ......................................................................................92

Chapter 7

Management Screens ............................................................................................ 95

7.1 Maintenance Overview .......................................................................................95

7.4.1 Backup Configuration ...............................................................................98

7.4.2 Restore Configuration ...............................................................................98

7.4.3 Back to Factory Defaults ...........................................................................99

Chapter 8

Troubleshooting ................................................................................................... 103

8.1 Problems Starting Up the G-570S ....................................................................103

8.2 Problems with the Password ............................................................................103

8.3 Problems with the WLAN Interface ..................................................................104

8.4 Problems with the Ethernet Interface ...............................................................104

8.4.1 Pop-up Windows, JavaScripts and Java Permissions ............................105

8.4.1.1 Internet Explorer Pop-up Blockers ................................................105

8.4.1.2 JavaScripts ....................................................................................108

8.4.1.3 Java Permissions ..........................................................................110

8.5 Testing the Connection to the G-570S ............................................................. 112

Appendix A

Product Specifications ........................................................................................ 115

Appendix B

Setting up Your Computer’s IP Address............................................................ 121

Appendix C

Wireless LANs ...................................................................................................... 137

Appendix D

Table of Contents 11

ZyXEL G-570S User’s Guide

IP Subnetting ........................................................................................................ 151

Index...................................................................................................................... 159

12 Table of Contents

ZyXEL G-570S User’s Guide

List of Figures

Figure 1 WDS Functionality Example ................................................................................. 22

Figure 2 Internet Access Application ................................................................................... 24

Figure 3 Corporate Network Application ............................................................................. 25

Figure 4 Wireless Client Application .................................................................................. 25

Figure 5 Bridge Application ................................................................................................. 26

Figure 6 Bridge Repeater Application ................................................................................. 26

Figure 7 AP+Repeater Application ...................................................................................... 27

Figure 8 Front Panel ...........................................................................................................27

Figure 9 Wired Connection ................................................................................................. 29

Figure 10 Control Panel ...................................................................................................... 30

Figure 11 Network Connection ............................................................................................ 30

Figure 12 Local Area Connection Properties ...................................................................... 31

Figure 13 Internet Protocol Properties ............................................................................... 31

Figure 14 Advanced TCP/IP Settings ................................................................................. 32

Figure 15 Wireless Connection ........................................................................................... 32

Figure 16 Web Configurator Address .................................................................................. 36

Figure 17 Login Screen ....................................................................................................... 36

Figure 18 Language Screen ................................................................................................ 36

Figure 19 Select Wizard or Advanced Setup Screen .......................................................... 37

Figure 20 Wizard: Basic Settings ........................................................................................ 38

Figure 21 Wizard: Wireless Settings ................................................................................... 39

Figure 22 Setup Wizard 3: Disable ..................................................................................... 40

Figure 23 Wizard 3: WEP .................................................................................................... 41

Figure 24 Wizard 3: WPA(2)-PSK ....................................................................................... 42

Figure 25 Wizard: Confirm Your Settings ............................................................................ 43

Figure 26 Status Screen ...................................................................................................... 44

Figure 27 Status .................................................................................................................. 47

Figure 28 Status: View Statistics ......................................................................................... 49

Figure 29 Status: View Association List .............................................................................. 50

Figure 30 Status: View Association List: Wireless Client Mode .......................................... 50

Figure 31 System Settings .................................................................................................. 54

Figure 32 IBSS (Ad-hoc) Wireless LAN .............................................................................. 57

Figure 33 Basic Service set ................................................................................................ 58

Figure 34 Extended Service Set ......................................................................................... 59

Figure 35 RTS/CTS ............................................................................................................. 60

Figure 36 Wireless Settings: Access Point ......................................................................... 62

Figure 37 Wireless Settings: Wireless Client ...................................................................... 64

Figure 38 Bridging Example ................................................................................................ 66

List of Figures 13

ZyXEL G-570S User’s Guide

Figure 39 Bridge Loop: Two Bridges Connected to Hub ..................................................... 67

Figure 40 Bridge Loop: Bridge Connected to Wired LAN ................................................... 67

Figure 41 Wireless Settings: Bridge .................................................................................... 68

Figure 42 Wireless Settings: AP+Repeater ........................................................................ 71

Figure 43 WEP Authentication Steps .................................................................................. 75

Figure 44 EAP Authentication ............................................................................................. 78

Figure 45 WPA(2)-PSK Authentication ............................................................................... 80

Figure 46 WPA with RADIUS Application Example ............................................................ 80

Figure 47 Wireless Security: Disable .................................................................................. 82

Figure 48 Wireless Security: WEP ...................................................................................... 83

Figure 49 Wireless Security: WPA(2)-PSK ......................................................................... 84

Figure 50 Wireless Security: WPA(2) .................................................................................. 85

Figure 51 Wireless Security: 802.1x ................................................................................... 86

Figure 52 MAC Filter ...........................................................................................................88

Figure 53 OTIST ................................................................................................................. 90

Figure 54 Example Wireless Client OTIST Screen ............................................................. 91

Figure 55 Security Key ........................................................................................................ 91

Figure 56 OTIST in Progress (AP) ...................................................................................... 92

Figure 57 OTIST in Progress (Client) .................................................................................. 92

Figure 58 No AP with OTIST Found ................................................................................... 92

Figure 59 Start OTIST? ....................................................................................................... 93

Figure 60 Management: Password ..................................................................................... 95

Figure 61 Management: Logs ............................................................................................. 96

Figure 62 Management: Configuration File ......................................................................... 97

Figure 63 Configuration Upload Successful ........................................................................ 98

Figure 64 Network Temporarily Disconnected .................................................................... 99

Figure 65 Configuration Upload Error ................................................................................. 99

Figure 66 Reset Warning Message ..................................................................................... 99

Figure 67 Management: F/W Upload .................................................................................. 100

Figure 68 Firmware Upgrading Screen ............................................................................... 100

Figure 69 Network Temporarily Disconnected .................................................................... 101

Figure 70 Firmware Upload Error ........................................................................................ 101

Figure 71 Pop-up Blocker ................................................................................................... 106

Figure 72 Internet Options .................................................................................................. 106

Figure 73 Internet Options .................................................................................................. 107

Figure 74 Pop-up Blocker Settings ..................................................................................... 108

Figure 75 Internet Options .................................................................................................. 109

Figure 76 Security Settings - Java Scripting ....................................................................... 110

Figure 77 Security Settings - Java ...................................................................................... 111

Figure 78 Java (Sun) ...........................................................................................................112

Figure 79 Pinging the G-650 ............................................................................................... 112

Figure 80 WIndows 95/98/Me: Network: Configuration ....................................................... 122

Figure 81 Windows 95/98/Me: TCP/IP Properties: IP Address ........................................... 123

14 List of Figures

ZyXEL G-570S User’s Guide

Figure 82 Windows 95/98/Me: TCP/IP Properties: DNS Configuration .............................. 124

Figure 83 Windows XP: Start Menu .................................................................................... 125

Figure 84 Windows XP: Control Panel ................................................................................ 125

Figure 85 Windows XP: Control Panel: Network Connections: Properties ......................... 126

Figure 86 Windows XP: Local Area Connection Properties ................................................ 126

Figure 87 Windows XP: Internet Protocol (TCP/IP) Properties ........................................... 127

Figure 88 Windows XP: Advanced TCP/IP Properties ........................................................ 128

Figure 89 Windows XP: Internet Protocol (TCP/IP) Properties ........................................... 129

Figure 90 Macintosh OS 8/9: Apple Menu .......................................................................... 130

Figure 91 Macintosh OS 8/9: TCP/IP .................................................................................. 130

Figure 92 Macintosh OS X: Apple Menu ............................................................................. 131

Figure 93 Macintosh OS X: Network ................................................................................... 132

Figure 94 Red Hat 9.0: KDE: Network Configuration: Devices .......................................... 133

Figure 95 Red Hat 9.0: KDE: Ethernet Device: General ................................................... 133

Figure 96 Red Hat 9.0: KDE: Network Configuration: DNS ............................................... 134

Figure 97 Red Hat 9.0: KDE: Network Configuration: Activate ......................................... 134

Figure 98 Red Hat 9.0: Dynamic IP Address Setting in ifconfig-eth0 ................................ 135

Figure 99 Red Hat 9.0: Static IP Address Setting in ifconfig-eth0 .................................... 135

Figure 100 Red Hat 9.0: DNS Settings in resolv.conf ...................................................... 135

Figure 101 Red Hat 9.0: Restart Ethernet Card ................................................................ 136

Figure 102 Red Hat 9.0: Checking TCP/IP Properties ...................................................... 136

Figure 103 Peer-to-Peer Communication in an Ad-hoc Network ........................................ 137

Figure 104 Basic Service Set .............................................................................................. 138

Figure 105 Infrastructure WLAN ......................................................................................... 139

Figure 106 RTS/CTS ........................................................................................................... 140

Figure 107 EAP Authentication ........................................................................................... 143

Figure 108 WEP Authentication Steps ................................................................................ 145

Figure 109 Roaming Example ............................................................................................. 148

List of Figures 15

ZyXEL G-570S User’s Guide

16 List of Figures

ZyXEL G-570S User’s Guide

List of Tables

Table 1 Front Panel LED Description ................................................................................. 27

Table 2 Factory Defaults .................................................................................................... 33

Table 3 Global Icon Key ..................................................................................................... 44

Table 4 Screens Summary ................................................................................................. 45

Table 5 Status ..................................................................................................................... 47

Table 6 Status: View Statistics ............................................................................................ 49

Table 7 Status: View Association List ................................................................................. 50

Table 8 Status: View Association List: Wireless Client Mode ............................................. 51

Table 9 Private IP Address Ranges ................................................................................... 53

Table 10 System Settings ................................................................................................... 54

Table 11 Wireless Settings: Access Point .......................................................................... 62

Table 12 Wireless Settings: Wireless Client ....................................................................... 65

Table 13 Wireless Settings: Bridge .................................................................................... 69

Table 14 Wireless Settings: AP + Repeater ....................................................................... 72

Table 15 Wireless Security Levels ..................................................................................... 74

Table 16 Wireless Security Relational Matrix ..................................................................... 81

Table 17 Wireless Security: Disable ................................................................................... 82

Table 18 Wireless Security: WEP ....................................................................................... 83

Table 19 Wireless Security: WPA-PSK .............................................................................. 84

Table 20 Wireless Security: WPA(2) .................................................................................. 85

Table 21 Wireless Security: 802.1x .................................................................................... 87

Table 22 MAC Filter ............................................................................................................ 89

Table 23 OTIST .................................................................................................................. 90

Table 24 Management: Password ...................................................................................... 95

Table 25 Management: Logs .............................................................................................. 96

Table 26 Management: Configuration File: Restore Configuration .................................... 98

Table 27 Management: F/W Upload ................................................................................... 100

Table 28 Troubleshooting the Start-Up of Your G-570S ..................................................... 103

Table 29 Troubleshooting the Password ............................................................................ 103

Table 30 Troubleshooting the WLAN Interface ................................................................... 104

Table 31 Troubleshooting the Ethernet Interface ............................................................... 104

Table 32 Device Specifications ........................................................................................... 115

Table 33 Feature Specifications ......................................................................................... 115

Table 34 Wireless RF Specifications .................................................................................. 116

Table 35 Approvals ............................................................................................................. 117

Table 36 Power Adaptor Specifications .............................................................................. 118

Table 37 IEEE 802.11g ....................................................................................................... 141

Table 38 Comparison of EAP Authentication Types ........................................................... 146

List of Tables 17

ZyXEL G-570S User’s Guide

Table 39 Classes of IP Addresses ..................................................................................... 151

Table 40 Allowed IP Address Range By Class ................................................................... 152

Table 41 “Natural” Masks .................................................................................................. 152

Table 42 Alternative Subnet Mask Notation ....................................................................... 153

Table 43 Two Subnets Example ......................................................................................... 153

Table 44 Subnet 1 .............................................................................................................. 154

Table 45 Subnet 2 .............................................................................................................. 154

Table 46 Subnet 1 .............................................................................................................. 155

Table 47 Subnet 2 .............................................................................................................. 155

Table 48 Subnet 3 .............................................................................................................. 155

Table 49 Subnet 4 .............................................................................................................. 156

Table 50 Eight Subnets ...................................................................................................... 156

Table 51 Class C Subnet Planning ..................................................................................... 156

Table 52 Class B Subnet Planning ..................................................................................... 157

18 List of Tables

ZyXEL G-570S User’s Guide

Preface

Congratulations on your purchase from the ZyXEL G-570S 802.11g Wireless Access Point.

Note: Register your product online to receive e-mail notices of firmware upgrades and

information at www.zyxel.com
North American products.

An access point (AP) acts as a bridge between the wireless and wired networks, extending
your existing wired network without any additional wiring.

This User's Guide is designed to guide you through the configuration of your ZyXEL G-570S
using the web configurator.

Related Documentation

• Supporting Disk

Refer to the included CD for support documents.

for global products, or at www.us.zyxel.com for

• Quick Start Guide

The Quick Start Guide is designed to help you get up and running right away. It contains
hardware connection and installation information.

• ZyXEL Glossary and Web Site

Please refer to www.zyxel.com
support documentation.

for an online glossary of networking terms and additional

User Guide Feedback

Help us help you. E-mail all User Guide-related comments, questions or suggestions for
improvement to [e-mail] or send regular mail to The Technical Writing
Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park,
Hsinchu, 300, Taiwan. Thank you.

Syntax Conventions

• “Enter” means for you to type one or more characters. “Select” or “Choose” means for
you to use one predefined choices.

• Mouse action sequences are denoted using a right arrow bracket key ( > ). For example,
“In Windows, click Start > Settings > Control Panel” means first click the Start button,
then point your mouse pointer to Settings and then click Control Panel.

• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.

• The ZyXEL G-570S 802.11g Wireless Access Point may be referred to simply as the G­570S in the User's Guide.

Preface 19

ZyXEL G-570S User’s Guide

Graphics Icons Key

G-570S Computer Notebook computer

Server Modem Wireless Signal

Telephone Switch Router

20 Preface

ZyXEL G-570S User’s Guide

CHAPTER 1

Getting to Know Your G-570S

This chapter introduces the main features and applications of the G-570S.

1.1 Introducing the G-570S Wireless Access Point

The ZyXEL G-570S is a 4-in-1 Access Point with Super G and Turbo G wireless technology.
Access Point (AP), repeater, bridge and wireless client functions allow you to use the G-570S
in various network deployments. Super G and Turbo G technology boost the wireless data
throughput.

The G-570S Access Point (AP) allows wireless stations to communicate and/or access a wired
network. It can work as a bridge and repeater to extend your wireless network. You can also
use it as a wireless client to access a wired network through another AP. The G-570S uses
IEEE 802.1x, WEP data encryption, WPA (Wi-Fi Protected Access), WPA2 and MAC address
filtering to give mobile users highly secured wireless connectivity. Both IEEE 802.11b and
IEEE 802.11g compliant wireless devices can associate with the G-570S.

In addition to being highly flexible, the G-570S is easy to install and configure.

1.2 G-570S Features

The following sections describe the features of the G-570S.

Bridge/Repeater

The G-570S can act as a bridge, establishing wireless links with other APs or as a repeater,
establishing wireless links to APs.

WDS Functionality

A Distribution System (DS) is a wired connection between two or more APs, while a Wireless
Distribution System (WDS) is a wireless connection. Your G-570S supports WDS connections
to other G-570S APs.

1

This provides a cost-effective solution for wireless network expansion.

1. The G-570S only supports WDS connections to G-570S APs, not other devices.

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Figure 1 WDS Functionality Example

OTIST (One-Touch Intelligent Security Technology)

OTIST allows your G-570S to assign its SSID and security settings (WEP or WPA-PSK) to
the ZyXEL wireless adapters that support OTIST and are within transmission range. The
ZyXEL wireless adapters must also have OTIST enabled.

10/100M Auto-negotiating Ethernet/Fast Ethernet Interface

This auto-negotiating feature allows the G-570S to detect the speed of incoming transmissions
and adjust appropriately without manual intervention. It allows data transfer of either 10 Mbps
or 100 Mbps in either half-duplex or full-duplex mode depending on your Ethernet network.

10/100M Auto-crossover Ethernet/Fast Ethernet Interface

The LAN interface automatically adjusts to either a crossover or straight-through Ethernet
cable.

Reset Button

The G-570S reset button is built into the rear panel. Use this button to restart the device or
restore the factory default password.

802.11g Wireless LAN Standard

The ZyXEL wireless products containing the letter "G" in the model name, such as G-570S
and G-162, comply with the IEEE 802.11g wireless standard.

IEEE 802.11g is fully compatible with the IEEE 802.11b standard. This means an IEEE

802.11b radio card can interface directly with an IEEE 802.11g access point (and vice versa) at
11 Mbps or lower depending on range.

Wi-Fi Protected Access

Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. Key differences
between WPA and WEP are user authentication and improved data encryption.

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WPA2

WPA 2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption,
authentication and key management than WPA.

SSL Passthrough

The G-570S allows SSL connections to go through the G-570S. SSL (Secure Sockets Layer)
uses a public key to encrypt data that's transmitted over an SSL connection. Both Netscape
Navigator and Internet Explorer support SSL, and many Web sites use the protocol to obtain
confidential user information, such as credit card numbers. By convention, URLs that require
an SSL connection start with "https" instead of "http".

Wireless LAN MAC Address Filtering

Your G-570S checks the MAC address of the wireless station against a list of allowed or
denied MAC addresses.

WEP Encryption

WEP (Wired Equivalent Privacy) encrypts data frames before transmitting over the wireless
network to help keep network communications private.

IEEE 802.1x Network Security

The G-570S supports the IEEE 802.1x standard to enhance user authentication. Use the built­in user profile database to authenticate up to 32 users using MD5 encryption. Use an EAP­compatible RADIUS (RFC2138, 2139 - Remote Authentication Dial In User Service) server
to authenticate a limitless number of users using EAP (Extensible Authentication Protocol).
EAP is an authentication protocol that supports multiple types of authentication.

Full Network Management

The embedded web configurator is an all-platform web-based utility that allows you to easily
access the G-570S's management settings.

Logging and Tracing

Built-in message logging and packet tracing.

Wireless Association List

With the wireless association list, you can see the list of the wireless stations that are currently
using the G-570S to access your wired network. When the G-570S is in client mode, the
wireless association list displays a list of wireless devices and networks in the area.

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Output Power Management

Output Power Management is the ability to set the level of output power.

There may be interference or difficulty with channel assignment when there is a high density
of APs within a coverage area. In this case you can lower the output power of each access
point, thus enabling you to place access points closer together.

Limit the Number of Client Connections

You may set a maximum number of wireless stations that may connect to the G-570S. This
may be necessary if for example, there is interference or difficulty with channel assignment
due to a high density of APs within a coverage area.

1.3 Applications for the G-570S

Here are some application examples of how you can use your G-570S.

1.3.1 Access Point for Internet Access

The G-570S is an ideal access solution for wireless Internet connection. A typical Internet
access application for your G-570S is shown as follows.

Figure 2 Internet Access Application

1.3.2 Corporate Network Access Application

In situations where users need to access corporate network resources and the Internet, the G­570S is an ideal solution for wireless stations to connect to the corporate network without
expensive network cabling. Stations A, B and C can access the wired network through the G­570Ss.

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The following figure depicts a typical application of the G-570S in an enterprise environment.
The three computers with wireless adapters are allowed to access the network resource
through the G-570S after account validation by the network authentication server.

Figure 3 Corporate Network Application

1.3.3 Wireless Client Application

The G-570S can function as a wireless client to connect to a network via an Access Point (AP).
The AP provides access to the wired network and the Internet.

Figure 4 Wireless Client Application

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1.3.4 Bridge / Repeater

The G-570S can act as a wireless network bridge and establish wireless links with other APs.
The G-570Ss in the following example are using bridge mode with a star configuration. A, B,
C and D are connected to independent wired networks and have bridge connections at the
same time (B, C and D can communicate with A).

Figure 5 Bridge Application

A G-570S in bridge mode without an Ethernet connection can function as a repeater. It
transmits traffic from one AP to another AP without using a wired connection. C in the
following graphic repeats wireless traffic between A and B.

Figure 6 Bridge Repeater Application

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1.3.5 Access Point and Repeater

Set the G-570S to AP+Repeater mode to have it simultaneously provide access for wireless
clients and use the repeater function. This allows you to extend the coverage of your wireless
network without installing Ethernet cable to connect the G-570S. In the following figure, B is
in AP+Repeater mode. B functions as an AP for wireless clients C and D. B also repeats
traffic between the wireless clients and AP A which is connected to the wired network. You
could also set AP A to AP+Repeater mode so that wireless clients could connect to A as well.

Figure 7 AP+Repeater Application

ZyXEL G-570S User’s Guide

1.4 The LED Display

Figure 8 Front Panel

The following table describes the LEDs on the G-570S.

Table 1 Front Panel LED Description

LED COLOR STATUS DESCRIPTION

PWR Green Blinking The G-570S is not ready or rebooting.

On The G-570S has a successful reboot and is receiving power.

Off The G-570S is not receiving power.

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Table 1 Front Panel LED Description

LED COLOR STATUS DESCRIPTION

ETHN Green Blinking The G-570S is sending/receiving data.

Amber Blinking The G-570S is sending/receiving data.

OTIST Green Blinking The OTIST automatic wireless configuration is in progress.

WLAN Green Blinking The G-570S is sending or receiving data through the wireless

On The G-570S has a successful 10Mbps Ethernet connection.

On The G-570S has a successful 100Mbps Ethernet connection.

Off The G-570S does not have an Ethernet connection.

On The OTIST feature is activated on the G-570S.

Off The OTIST feature is not activated or activated but the wireless

settings have been changed.

LAN.

On The G-570S is ready, but is not sending/receiving data.

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Management Computer Setup

This chapter describes how to prepare your computer to access the G-570S web configurator.

2.1 Introduction

You can connect a computer to the G-570S for management purposes either using an Ethernet
connection (recommended for a first time management session) or wirelessly.

2.2 Wired Connection

You must prepare your computer/computer network to connect to the G-570S if you are using
a wired connection. Your computer's IP address and subnet mask must be on the same subnet
as the G-570S. This can be done by setting up your computer's IP address.

ZyXEL G-570S User’s Guide

CHAPTER 2

The following figure shows you an example of accessing your G-570S via a wired connection
with an Ethernet cable.

Figure 9 Wired Connection

192.168.1.3

2.2.1 Setting Up Your Computer's IP Address

Note: Skip this section if your computer's IP address is already between 192.168.1.3

and 192.168.1.254 with subnet mask 255.255.255.0.

Your computer must have a network card and TCP/IP installed. TCP/IP should already be
installed on computers using Windows NT/2000/XP, Macintosh OS 7 and later operating
systems. Refer to the appendix about setting up your computer's IP address for other operating
systems.

Default IP Address:

192.168.1.2

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2.2.1.1 Windows 2000/NT/XP

The following example figures use the default Windows XP GUI theme.

1 Click start (Start in Windows 2000/NT) > Settings > Control Panel.

2 In the Control Panel, double-click Network Connections (Network and Dial-up

Connections in Windows 2000/NT).

Figure 10 Control Panel

3 Right-click Local Area Connection and then Properties.

Figure 11 Network Connection

4 Select Internet Protocol (TCP/IP) and then click Properties.

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