ZyXEL AG-220 Manual

ZyXEL Netværkskort/adapter AG-220

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ZyXEL AG-220
802.11a/g Wireless USB Adapter
User’s Guide
Version 1.10
Edition 1
5/2008
ZyXEL AG-220 User’s Guide
Copyright 3
Copyright
Copyright © 2008 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.
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.
ZyXEL AG-220 User’s Guide
4 Certifications
Certifications
Federal Communications Commission (FCC) Interference Statement
The 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 device 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 residential installation. This device 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. However, there is
no guarantee that interference will not occur in a particular installation.
If this device does cause harmful interference to radio/television reception, which can be
determined by turning the device off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
1Reorient or relocate the receiving antenna.
2Increase the separation between the equipment and the receiver.
3Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
4Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
• This device has been tested to the FCC exposure requirements (Specific Absorption
Rate).
• Testing was performed on laptop computers with antennas at 0mm spacing. The
maximum SAR value is: 1.420W/kg at 2.4 GHz and 0.518W/kg at 5 GHz. The device
must not be collocated with any other antennas or transmitters.
• This equipment has been SAR-evaluated for use in laptops (notebooks) with side slot
configuration.
• The device complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment, under 47 CFR 2.1093 paragraph (d)(2). End users must follow the specific
operating instructions for satisfying RF exposure compliance. To maintain compliance
with FCC RF exposure compliance requirements, please follow operation instruction as
documented in this manual.
• This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
ZyXEL AG-220 User’s Guide
Certifications 5
• For operation within 5.15 ~ 5.25GHz frequency range, it is restricted to indoor
environment.
• IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to
channels 1 through 11.
注意 !
注意 !
注意 !
注意 !注意 !
依據 低功率電波輻射性電機管理辦法
第十二條 經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用
者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。
第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現
有干擾現象時，應立即停用，並改善至無干擾時方得繼續使用。
前項合法通信，指依電信規定作業之無線電信。低功率射頻電機須忍
受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。
在 5250MHz~5350MHz 頻帶內操作之無線資訊傳輸設備，限於室內使用。
Notices
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This device has been designed for the WLAN 2.4 GHz and 5 GHz networks throughout the EC
region and Switzerland, with restrictions in France.
This device 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.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Viewing Certifications
1Go to http://www.zyxel.com.
2Select your product from the drop-down list box on the ZyXEL home page to go to that
product's page.
3Select the certification you wish to view from this page.
ZyXEL AG-220 User’s Guide
6 Safety Warnings
Safety Warnings
For your safety, be sure to read and follow all warning notices and instructions.
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• ONLY qualified service personnel should service or disassemble this device.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• Antenna Warning! This device meets ETSI and FCC certification requirements when
using the included antenna(s). Only use the included antenna(s).
This product is recyclable. Dispose of it properly.
ZyXEL AG-220 User’s Guide
ZyXEL Limited Warranty 7
ZyXEL Limited Warranty
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 ne unctionally equivalent w or re-manufactured f
product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty
shall not apply if the product has been 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 to the purchaser.
To obtain the services of this warranty, contact your vendor. You may also refer to the
warranty policy for the region in which you bought the device at http://www.zyxel.com/web/
support_warranty_info.php.
Registration
Register your product online to receive e-mail notices of firmware upgrades and information
at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.
ZyXEL AG-220 User’s Guide
8 Customer Support
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
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE
CORPORATE
HEADQUARTERS
(WORLDWIDE)
support@zyxel.com.tw +886-3-578-3942 www.zyxel.com
www.europe.zyxel.com
ZyXEL Communications Corp.
6 Innovation Road II
Science Park
Hsinchu 300
Taiwan
sales@zyxel.com.tw +886-3-578-2439 ftp.zyxel.com
ftp.europe.zyxel.com
COSTA RICA
soporte@zyxel.co.cr +506-2017878 www.zyxel.co.cr ZyXEL Costa Rica
Plaza Roble Escazú
Etapa El Patio, Tercer Piso
San José, Costa Rica
sales@zyxel.co.cr +506-2015098 ftp.zyxel.co.cr
CZECH REPUBLIC
info@cz.zyxel.com +420-241-091-350 www.zyxel.cz ZyXEL Communications
Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika
info@cz.zyxel.com +420-241-091-359
DENMARK
support@zyxel.dk +45-39-55-07-00 www.zyxel.dk ZyXEL Communications A/S
Columbusvej
2860 Soeborg
Denmark
sales@zyxel.dk +45-39-55-07-07
FINLAND
support@zyxel.fi +358-9-4780-8411 www.zyxel.fi ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland
sales@zyxel.fi +358-9-4780 8448
FRANCE
info@zyxel.fr +33-4-72-52-97-97 www.zyxel.fr ZyXEL France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France
+33-4-72-52-19-20
GERMANY
support@zyxel.de +49-2405-6909-0 www.zyxel.de ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany
sales@zyxel.de +49-2405-6909-99
HUNGARY
support@zyxel.hu +36-1-3361649 www.zyxel.hu ZyXEL Hungary
48, Zoldlomb Str.
H-1025, Budapest
Hungary
info@zyxel.hu +36-1-3259100
KAZAKHSTAN
http://zyxel.kz/support +7-3272-590-698 www.zyxel.kz ZyXEL Kazakhstan
43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan
sales@zyxel.kz +7-3272-590-689
NORTH AMERICA
support@zyxel.com 1-800-255-4101
+1-714-632-0882
www.us.zyxel.com ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
sales@zyxel.com +1-714-632-0858 ftp.us.zyxel.com
ZyXEL AG-220 User’s Guide
Customer Support 9
+” is the (prefix) number you enter to make an international telephone call.
NORWAY
support@zyxel.no +47-22-80-61-80 www.zyxel.no ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
sales@zyxel.no +47-22-80-61-81
POLAND
info@pl.zyxel.com +48 (22) 333 8250 www.pl.zyxel.com ZyXEL Communications
ul. Okrzei 1A
03-715 Warszawa
Poland
+48 (22) 333 8251
RUSSIA
http://zyxel.ru/support +7-095-542-89-29 www.zyxel.ru ZyXEL Russia
Ostrovityanova 37a Str.
Moscow, 117279
Russia
sales@zyxel.ru +7-095-542-89-25
SPAIN
support@zyxel.es +34-902-195-420 www.zyxel.es ZyXEL Communications
Arte, 21 5ª planta
28033 Madrid
Spain
sales@zyxel.es +34-913-005-345
SWEDEN
support@zyxel.se +46-31-744-7700 www.zyxel.se ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden
sales@zyxel.se +46-31-744-7701
UKRAINE
support@ua.zyxel.com +380-44-247-69-78 www.ua.zyxel.com ZyXEL Ukraine
13, Pimonenko Str.
Kiev, 04050
Ukraine
sales@ua.zyxel.com +380-44-494-49-32
UNITED KINGDOM
support@zyxel.co.uk +44-1344 303044
08707 555779 (UK only)
www.zyxel.co.uk ZyXEL Communications UK
Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)
sales@zyxel.co.uk +44-1344 303034 ftp.zyxel.co.uk
METHOD
LOCATION
SUPPORT E-MAIL TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE
ZyXEL AG-220 User’s Guide
10 Customer Support
ZyXEL AG-220 User’s Guide
Table of Contents 11
Table of Contents
Copyright .................................................................................................................. 3
Certifications ............................................................................................................ 4
Safety Warnings ....................................................................................................... 6
ZyXEL Limited Warranty.......................................................................................... 7
Customer Support.................................................................................................... 8
Table of Contents ................................................................................................... 11
List of Figures ........................................................................................................ 15
List of Tables .......................................................................................................... 19
Preface .................................................................................................................... 21
Chapter 1
Getting Started ....................................................................................................... 23
1.1 About Your AG-220 ..........................................................................................23
1.1.1 Note for Windows Vista Users ..................................................................23
1.2 Application Overview ..........................................................................................23
1.2.1 Station Mode .............................................................................................23
1.2.1.1 Infrastructure ...................................................................................24
1.2.1.2 Ad-Hoc ............................................................................................24
1.2.2 Access Point Mode ..................................................................................25
1.2.3 Changing AG-220 Mode ..........................................................................25
1.3 AG-220 Hardware and Utility Installation ...........................................................26
1.3.1 ZyXEL Utility Icon .....................................................................................26
1.4 Configuration Methods ......................................................................................27
1.4.1 Enabling WZC ...........................................................................................27
1.4.2 Accessing the ZyXEL Utility .....................................................................27
Chapter 2
Tutorial .................................................................................................................... 29
2.1 Connecting to a Wireless LAN ..........................................................................29
2.2 Creating and Using a Profile ..............................................................................31
2.3 Configuring the AG-220 as an AP ......................................................................34
ZyXEL AG-220 User’s Guide
12 Table of Contents
Chapter 3
Wireless LAN Network........................................................................................... 37
3.1 Wireless LAN Overview ....................................................................................37
3.2 Wireless LAN Security ......................................................................................38
3.2.1 Hide SSID .................................................................................................38
3.2.2 MAC Address Filter ...................................................................................38
3.2.3 User Authentication and Encryption .........................................................39
3.2.3.1 WEP ................................................................................................39
3.2.3.2 IEEE 802.1x .............................................. ............................. .........40
3.2.3.3 WPA and WPA2 ..............................................................................40
3.3 WiFi Protected Setup .........................................................................................41
3.3.1 Push Button Configuration ........................................................................41
3.3.2 PIN Configuration .....................................................................................42
3.3.3 How WPS Works ......................................................................................43
3.3.3.1 Example WPS Network Setup ........................................................44
3.3.4 Limitations of WPS ...................................................................................46
3.4 Introduction to OTIST .....................................................................................47
3.4.1 Enabling OTIST ........................................................................................47
3.4.1.1 AP ...................................................................................................47
3.4.1.2 Wireless Client ................................................................................48
3.4.2 Starting OTIST .........................................................................................48
3.4.3 Notes on OTIST ........................................................................................49
Chapter 4
Wireless Station Mode Configuration .................................................................. 51
4.1 Wireless Station Mode Overview ......................................................................51
4.1.1 ZyXEL Utility Screen Summary ...............................................................51
4.2 The Link Info Screen ..........................................................................................52
4.2.1 Trend Chart ...............................................................................................53
4.3 The Site Survey Screen ....................................................................................54
4.3.1 Security Settings ......................................................................................55
4.3.1.1 WEP Encryption ..............................................................................55
4.3.1.2 WPA-PSK/WPA2-PSK ................... ............................. .....................56
4.3.1.3 WPA/WPA2 .....................................................................................57
4.3.1.4 IEEE 802.1x .............................................. ............................. .........58
4.3.2 Confirm Save Screen ................................................................................60
4.4 The Profile Screen .............................................................................................60
4.4.1 Adding a New Profile ................................................................................62
4.5 The Advanced Screen ........................................................................................66
4.6 The Adapter Screen ...........................................................................................67
4.7 The Adapter Screen (Windows Vista) ................................................................68
4.8 Security Settings in Windows Vista ....................................................................69
4.8.1 Using PEAP in Vista .................................. ...................................... .........70
ZyXEL AG-220 User’s Guide
Table of Contents 13
4.8.2 Using TLS in Vista ...................................................................................70
Chapter 5
Access Point Mode Configuration........................................................................ 73
5.1 Access Point Mode Introduction ........................................................................73
5.1.1 ZyXEL Utility Screen Summary ...............................................................73
5.1.2 Additional Setup Requirements ................................................................74
5.2 The Link Info Screen .........................................................................................74
5.3 The Configuration Screen .................................................................................75
5.4 The Advanced Screen ........................................................................................77
5.5 The MAC Filter Screen ......................................................................................78
Chapter 6
Maintenance ........................................................................................................... 81
6.1 The About Screen .............................................................................................81
6.2 Uninstalling the ZyXEL Utility ............................................................................81
6.2.1 Windows XP .............................................................................................81
6.2.2 Windows Vista ..........................................................................................82
6.3 Upgrading the ZyXEL Utility ..............................................................................84
Chapter 7
Troubleshooting .................................................................................................. 85
7.1 Problems Starting the ZyXEL Utility ...................................................................85
7.2 Problem Connecting to an Access Point ............................................................85
7.3 Problem with the Link Quality .............................................................................86
7.4 Problems Communicating With Other Computers .............................................86
Appendix A
Product Specifications .......................................................................................... 87
Appendix B
Access Point Mode Setup Example ..................................................................... 89
Appendix C
Windows Wireless Management........................................................................... 93
Appendix D
Wireless Security ................................................................................................. 115
Appendix E
Setting up Your Computer’s IP Address............................................................ 121
Index...................................................................................................................... 135
ZyXEL AG-220 User’s Guide
14 Table of Contents
ZyXEL AG-220 User’s Guide
List of Figures 15
List of Figures
Figure 1 Application: Infrastructure ....................................................................... 24
Figure 2 Application: Ad-Hoc ................................................................................ 25
Figure 3 Application: Access Point Mode .............................................................. 25
Figure 4 ZyXEL Utility: Change Modes .................................................................. 26
Figure 5 ZyXEL Utility: System Tray Icon .............................................................. 26
Figure 6 Enable WZC ............................................................................................. 27
Figure 7 Infrastructure Network .............................................................................. 29
Figure 8 ZyXEL Utility: Site Survey ........................................................................ 30
Figure 9 ZyXEL Utility: Security Settings .............................................................. 30
Figure 10 ZyXEL Utility: Confirm Save ................................................................... 31
Figure 11 ZyXEL Utility: Link Info .......................................................................... 31
Figure 12 ZyXEL Utility: Profile .............................................................................. 32
Figure 13 ZyXEL Utility: Add New Profile ............................................................... 32
Figure 14 ZyXEL Utility: Profile Security ................................................................ 33
Figure 15 ZyXEL Utility: Profile Encryption ............................................................ 33
Figure 16 ZyXEL Utility: Profile Confirm Save ....................................................... 33
Figure 17 ZyXEL Utility: Profile Activate ................................................................ 34
Figure 18 ZyXEL Utility: AP: Link Info .................................................................... 35
Figure 19 ZyXEL Utility: AP: Configuration ........................................................... 35
Figure 20 Example of a Wireless Network ............................................................. 37
Figure 21 Example WPS Process: PIN Method ..................................................... 43
Figure 22 How WPS works .................................................................................... 44
Figure 23 WPS: Example Network Step 1 ............................................................. 45
Figure 24 WPS: Example Network Step 2 ............................................................. 45
Figure 25 WPS: Example Network Step 3 ............................................................. 46
Figure 26 ZyXEL Utility Menu Summary: Station Mode ........................................ 51
Figure 27 Station Mode: Link Info ......................................................................... 52
Figure 28 Station Mode: Link Info: Trend Chart .................................................... 53
Figure 29 Station Mode: Site Survey ..................................................................... 54
Figure 30 Station Mode: Security Setting: WEP ................................................... 55
Figure 31 Station Mode: Security Setting: WPA-PSK/WPA2-PSK ......................... 56
Figure 32 Station Mode: Security Settings: WPA/WPA2 ........................................ 57
Figure 33 Station Mode: Security Setting: 802.1x ................................................. 59
Figure 34 Confirm Save Screen ............................................................................ 60
Figure 35 Station Mode: Profile ............................................................................ 61
Figure 36 Station Mode: Profile: Add a New Profile .............................................. 62
Figure 37 Station Mode: Profile: Select a Channel ............................................... 63
Figure 38 Station Mode: Profile: Wireless Settings ............................................... 64
ZyXEL AG-220 User’s Guide
16 List of Figures
Figure 39 Station Mode: Profile: Security Settings ................................................ 65
Figure 40 Station Mode: Profile: Confirm New Settings ........................................ 65
Figure 41 Station Mode: Profile: Activate the Profile ............................................. 66
Figure 42 Station Mode: Advanced ........................................................................ 66
Figure 43 Station Mode: Adapter .......................................................................... 67
Figure 44 Station Mode: Adapter (Windows Vista) ................................................ 68
Figure 45 Vista Security: Additional Information Required ..................................... 70
Figure 46 Vista Security: Enter Credentials ........................................................... 70
Figure 47 Vista Security: Additional Information Required ..................................... 71
Figure 48 Vista Security: Select Certificate ............................................................ 71
Figure 49 ZyXEL Utility Menu Summary: AP Mode .............................................. 73
Figure 50 Access Point Mode: Link Info ................................................................ 74
Figure 51 Access Point Mode: Configuration ........................................................ 75
Figure 52 Access Point Mode: Advanced .............................................................. 78
Figure 53 Access Point Mode: MAC Filter ............................................................ 79
Figure 54 About ..................................................................................................... 81
Figure 55 Uninstall: Confirm ................................................................................. 82
Figure 56 Uninstall: Finish ..................................................................................... 82
Figure 57 Uninstall: Start ........................................................................................ 82
Figure 58 Uninstall: Control Panel ......................................................................... 83
Figure 59 Uninstall: Control Panel ......................................................................... 83
Figure 60 Uninstall: Control Panel ......................................................................... 83
Figure 61 Uninstall: Remove Utility ........................................................................ 83
Figure 62 Uninstall: Finish ...................................................................................... 84
Figure 63 Windows 2000: Start ............................................................................. 89
Figure 64 Windows 2000: Network and Dial-up Connections ............................... 90
Figure 65 Windows 2000: Network Properties ...................................................... 90
Figure 66 WIndows 2000: Network Properties: Select Network Adapter .............. 91
Figure 67 Windows 2000: Local Network .............................................................. 91
Figure 68 Vista: Start Menu .................................................................................... 93
Figure 69 Vista: The Connect To Window .............................................................. 94
Figure 70 Vista: Additional Information .................................................................. 94
Figure 71 Vista: Enter Security Key ....................................................................... 95
Figure 72 Vista: Connecting ................................................................................... 95
Figure 73 Vista: Successful Connection ................................................................. 96
Figure 74 Vista: Choose a Connection Option ....................................................... 97
Figure 75 Vista: Connect Manually ........................................................................ 97
Figure 76 Vista: Successfully Added Network ........................................................ 98
Figure 77 Vista: Set Up An Ad-hoc Network .......................................................... 99
Figure 78 Vista: Ad-hoc Options ........................................................................... 99
Figure 79 Vista: Ad-hoc Network Ready ............................................................... 100
Figure 80 Windows XP SP1: Wireless Network Connection Status ....................... 101
Figure 81 Windows XP SP2: Wireless Network Connection Status ....................... 101
ZyXEL AG-220 User’s Guide
List of Figures 17
Figure 82 Windows XP SP1: Wireless Network Connection Properties ................ 102
Figure 83 Windows XP SP2: Wireless Network Connection Properties ................ 102
Figure 84 Windows XP SP2: WZC Not Available .................................................. 103
Figure 85 Windows XP SP2: System Tray Icon ..................................................... 103
Figure 86 Windows XP SP2: Wireless Network Connection Status ....................... 104
Figure 87 Windows XP SP1: Wireless Network Connection Status ....................... 104
Figure 88 Windows XP SP2: Wireless Network Connection .................................. 105
Figure 89 Windows XP SP1: Wireless Network Connection Properties ................ 106
Figure 90 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK .. 106
Figure 91 Windows XP SP2: Wireless Network Connection: No Security ............ 107
Figure 92 Windows XP: Wireless (network) properties: Association ..................... 107
Figure 93 Windows XP: Wireless (network) properties: Authentication ................. 109
Figure 94 Windows XP: Protected EAP Properties ................................................ 110
Figure 95 Windows XP: Smart Card or other Certificate Properties ...................... 111
Figure 96 Windows XP SP2: Wireless Networks: Preferred Networks .................. 112
Figure 97 Windows XP SP1: Wireless Networks: Preferred Networks .................. 112
Figure 98 WPA-PSK Authentication ....................................................................... 119
Figure 99 WPA(2) with RADIUS Application Example ........................................... 120
Figure 100 WIndows 98/Me: Network: Configuration ............................................. 122
Figure 101 Windows 98/Me: TCP/IP Properties: IP Address ................................. 123
Figure 102 Windows 98/Me: TCP/IP Properties: DNS Configuration .................... 124
Figure 103 Windows XP: Start Menu ..................................................................... 125
Figure 104 Windows XP: Control Panel ................................................................. 125
Figure 105 Windows XP: Control Panel: Network Connections: Properties .......... 126
Figure 106 Windows XP: Local Area Connection Properties ................................. 126
Figure 107 Windows XP: Advanced TCP/IP Settings ............................................ 127
Figure 108 Windows XP: Internet Protocol (TCP/IP) Properties ............................ 128
Figure 109 Windows Vista: Start Menu .................................................................. 129
Figure 110 Windows Vista: Control Panel .............................................................. 129
Figure 111 Windows Vista: Network And Internet .................................................. 129
Figure 112 Windows Vista: Network and Sharing Center ...................................... 129
Figure 113 Windows Vista: Network and Sharing Center ...................................... 130
Figure 114 Windows Vista: Local Area Connection Properties .............................. 130
Figure 115 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties ..... 131
Figure 116 Windows Vista: Advanced TCP/IP Properties ...................................... 132
Figure 117 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties ..... 133
ZyXEL AG-220 User’s Guide
18 List of Figures
ZyXEL AG-220 User’s Guide
List of Tables 19
List of Tables
Table 1 ZyXEL Utility: System Tray Icon ............................................................... 27
Table 2 ZyXEL Utility Menu Summary: Station Mode ............................................ 51
Table 3 Station Mode: Link Info ............................................................................. 52
Table 4 Station Mode: Link Info: Trend Chart ........................................................ 53
Table 5 Station Mode: Site Survey ........................................................................ 54
Table 6 Station Mode: Security Setting: WEP ....................................................... 55
Table 7 Station Mode: Security Setting: WPA-PSK/WPA2-PSK ............................ 57
Table 8 Station Mode: Security Setting: WPA/WPA2 ............................................. 57
Table 9 Station Mode: Security Settings: IEEE 802.1x .......................................... 59
Table 10 Confirm Save Screen ............................................................................. 60
Table 11 Station Mode: Profile ............................................................................... 61
Table 12 Station Mode: Profile: Add a New Profile ................................................ 62
Table 13 Station Mode: Profile: Select a Channel ................................................. 64
Table 14 Station Mode: Advanced ......................................................................... 66
Table 15 Station Mode: Adapter ............................................................................ 67
Table 16 Station Mode: Adapter (Windows Vista) ................................................. 69
Table 17 ZyXEL Utility Menu Summary: AP Mode ................................................ 73
Table 18 Access Point Mode: Link Info ................................................................. 74
Table 19 Access Point Mode: Configuration ......................................................... 76
Table 20 Access Point Mode: Advanced ............................................................... 78
Table 21 Access Point Mode: MAC Filter .............................................................. 79
Table 22 About ...................................................................................................... 81
Table 23 Troubleshooting Starting ZyXEL Utility ................................................... 85
Table 24 Troubleshooting Access Point Connection Problem ............................... 85
Table 25 Troubleshooting Link Quality .................................................................. 86
Table 26 Troubleshooting Communication Problems ............................................ 86
Table 27 Product Specifications ............................................................................ 87
Table 28 Vista: Connect Manually ......................................................................... 97
Table 29 Windows XP SP2: System Tray Icon ...................................................... 103
Table 30 Windows XP SP2: Wireless Network Connection .................................. 105
Table 31 Windows XP: Wireless Networks ........................................................... 107
Table 32 Windows XP: Wireless (network) properties: Association ...................... 108
Table 33 Windows XP: Wireless (network) properties: Authentication .................. 109
Table 34 Windows XP: Protected EAP Properties ................................................ 110
Table 35 Windows XP: Smart Card or other Certificate Properties ....................... 111
Table 36 Comparison of EAP Authentication Types .............................................. 117
Table 37 Wireless Security Relational Matrix ........................................................ 120
ZyXEL AG-220 User’s Guide
20 List of Tables
ZyXEL AG-220 User’s Guide
Preface 21
Preface
Congratulations on your purchase of the ZyXEL AG-220 802.11a/g Wireless USB Adapter.
Your AG-220 plugs into a USB port on your computer and allows you to access wireless
networks.
Your AG-220 is easy to install and configure.
About This User's Guide
This manual is designed to guide you through the configuration of your AG-220 for its various
applications.
Related Documentation
• Supporting Disk
Refer to the included CD for support documents.
• Quick Start Guide
The Quick Start Guide is designed to help you get up and running right away. They
contain hardware installation/connection information.
• ZyXEL Web Site
Please go to http://www.zyxel.com for product news, firmware, updated documents, and
other support materials.
User Guide Feedback
Help us help you. E-mail all User’s Guide-related comments, questions or suggestions for
improvement to techwriters@zyxel.com.tw 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 choice.
• Mouse action sequences are denoted using a right angle bracket ( > ). 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 AG-220 802.11a/g Wireless USB Adapter may be referred to as the AG-220
in this user’s guide.
ZyXEL AG-220 User’s Guide
22 Preface
Graphics Icons Key
Wireless Access Point Computer Notebook Computer
Server Modem or Router Wireless Signal
Internet Cloud
ZyXEL AG-220 User’s Guide
Chapter 1 Getting Started 23
C 1H A P T E R
Getting Started
This chapter introduces the AG-220 and prepares you to use the ZyXEL utility.
1.1 About Your AG-220
The AG-220 is an IEEE 802.11a/b/g compliant wireless LAN adapter. You can also turn your
AG-220 into an access point (AP) using the ZyXEL utility. The ZyXEL utility is a tool that
helps you configure your AG-220. See the appendix for detailed product specifications.
1.1.1 Note for Windows Vista Users
The Windows Vista version of the ZyXEL utility has Wi-Fi Protected Setup (WPS). See
Section 3.3 on page 41 and Section 4.7 on page 68 for more information.
At the time of writing the following functions are not available on Windows Vista:
• AP Mode (Section 2.3 on page 34).
• Encryption Settings - Login Name, Password and Logon Domain are not shown in
the 802.1x and WPA/WPA2 screens. To configure these screens in Vista please
see Section 4.8 on page 69.
• Ad-hoc channel and wireless mode settings (Section 4.4.1 on page 62).
• The Advanced Screen (Section 4.5 on page 66).
1.2 Application Overview
This section describes some network applications for the AG-220.
1.2.1 Station Mode
The AG-220 is in wireless station mode by default. When the AG-220 works as a wireless
station (wireless client), you can either set the network type to Infrastructure and connect to
an AP or use Ad-Hoc mode and connect to a peer computer (another wireless device in Ad-
Hoc mode).
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24 Chapter 1 Getting Started
1.2.1.1 Infrastructure
To connect to a network via an access point (AP), set the AG-220 network type to
Infrastructure. Through the AP, you can access the Internet or the wired network behind the
AP.
Figure 1 Application: Infrastructure
1.2.1.2 Ad-Hoc
To set up a small independent wireless workgroup without an AP, use Ad-Hoc.
Ad-Hoc does not require an AP or a wired network. Two or more wireless clients
communicate directly with each other.
ZyXEL AG-220 User’s Guide
Chapter 1 Getting Started 25
Figure 2 Application: Ad-Hoc
1.2.2 Access Point Mode
You can also set the AG-220 to access point mode. This allows you to set up your wireless
networks without using a dedicated AP. The following figure shows a network example.
Figure 3 Application: Access Point Mode
In the example, the AG-220 is installed on computer A and set to operate in access point
mode. Computer A provides an Internet connection to the wireless LAN, so wireless stations
B C and can access the Internet.
1.2.3 Changing AG-220 Mode
To change between the modes, select either Station Mode or AP Mode in any ZyXEL utility
screens.
Note: This feature is not available in the Windows Vista utility. The Windows Vista
utility only operates in Station Mode.
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26 Chapter 1 Getting Started
Figure 4 ZyXEL Utility: Change Modes
Note: Wait for about five seconds for the ZyXEL utility to complete the mode change.
The current mode is indicated by the color of the check box.
1.3 AG-220 Hardware and Utility Installation
Follow the instructions in the Quick Start Guide to install the ZyXEL utility and make
hardware connections.
1.3.1 ZyXEL Utility Icon
After you install and start the ZyXEL utility, an icon for the ZyXEL utility appears in the
system tray.
Note: The ZyXEL utility system tray icon displays only when the AG-220 is installed
properly.
When you use the ZyXEL utility, it automatically disables Wireless Zero
Configuration (WZC).
Figure 5 ZyXEL Utility: System Tray Icon
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Chapter 1 Getting Started 27
The color of the ZyXEL utility system tray icon indicates the status of the AG-220. Refer to
the following table for details.
1.4 Configuration Methods
To configure your AG-220, use one of the following applications:
• Wireless Zero Configuration (WZC) (the Windows XP wireless configuration tool)
• ZyXEL Utility (required when you want to use the AG-220 as an access point)
Note: Do NOT use WZC at the same time you use the ZyXEL utility.
1.4.1 Enabling WZC
Note: When you use the ZyXEL utility, it automatically disables WZC.
If you want to use WZC to configure the AG-220, you need to disable the ZyXEL utility by
right-clicking the utility icon ( ) in the system tray and selecting Exit.
Figure 6 Enable WZC
Refer to the appendices for information on how to use WZC to manage the AG-220.
To reactivate the ZyXEL utility, double-click the ( ) icon on your desktop or click Start,
(All) Programs, ZyXEL AG-220 Wireless Adapter Utility, ZyXEL AG-220 Wireless
Adapter Software.
1.4.2 Accessing the ZyXEL Utility
Double-click on the ZyXEL wireless LAN utility icon in the system tray to open the ZyXEL
utility.
The ZyXEL utility screens are similar in all Microsoft Windows versions. Screens for
Windows XP are shown in this User’s Guide.
Table 1 ZyXEL Utility: System Tray Icon
COLOR DESCRIPTION
Red The AG-220 is operating in wireless station mode but is not connected to a wireless
network.
Green The AG-220 is operating in wireless station mode and is connected to a wireless
network.
Pale Blue The AG-220 is operating in access point mode.
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28 Chapter 1 Getting Started
Note: Click the icon (located in the top right corner) to display the online help
window.
ZyXEL AG-220 User’s Guide
Chapter 2 Tutorial 29
C 2H A P T E R
Tutorial
The following sections show you how to join a wireless network using the ZyXEL utility, as in
the following diagrams. The wireless client is labeled C and the access point is labeled AP.
Figure 7 Infrastructure Network
There are three ways to connect the wireless client (the AG-220 in station mode) to a network.
• Configure nothing and leave the wireless client to automatically scan for and connect to
any available network that has no wireless security configured.
• Manually connect to a network (see Section 2.1 on page 29).
• Configure a profile to have the wireless client automatically connect to a specific network
or peer computer (see Section 2.2 on page 31).
This chapter also includes a simple example of how to configure the AG-220 as an AP using
the ZyXEL utility. See Section 2.3 on page 34 for more information.
2.1 Connecting to a Wireless LAN
This example illustrates how to manually connect your wireless client to an access point (AP)
configured for WPA-PSK security and connected to the Internet. Before you connect to the
access point, you must know its Service Set IDentity (SSID) and WPA-PSK pre-shared key. In
this example, the AP’s SSID is “SSID_Example3” and its pre-shared key is “ThisismyWPA-
PSKpre-sharedkey”.
After you install the ZyXEL utility and then insert the wireless client, follow the steps below
to connect to a network using the Site Survey screen.
1Open the ZyXEL utility and click the Site Survey tab to open the screen shown next.
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30 Chapter 2 Tutorial
Figure 8 ZyXEL Utility: Site Survey
2The wireless client automatically searches for available wireless networks. Click Scan if
you want to search again. If no entry displays in the Available Network List, that means
there is no wireless network available within range. Make sure the AP or peer computer is
turned on, or move the wireless client closer to the AP or peer computer. See Table 5 on
page 54 for detailed field descriptions.
3To connect to an AP or peer computer, either click an entry in the list and then click
Connect or double-click an entry (SSID_Example3 in this example).
4When you try to connect to an AP with security configured, a window will pop up
prompting you to specify the security settings. Enter the pre-shared key and leave the
encryption type at the default setting.
Use the Next button to move on to the next screen. You can use the Back button at any
time to return to the previous screen, or the button to return to the Exit Site Survey
screen.
Figure 9 ZyXEL Utility: Security Settings
5The Confirm Save window appears. Check your settings and click Save to continue.
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Chapter 2 Tutorial 31
Figure 10 ZyXEL Utility: Confirm Save
6The ZyXEL utility returns to the Link Info screen while it connects to the wireless
network using your settings. When the wireless link is established, the ZyXEL utility icon
in the system tray turns green and the Link Info screen displays details of the active
connection. Check the network information in the Link Info screen to verify that you
have successfully connected to the selected network. If the wireless client is not
connected to a network, the fields in this screen remain blank. See Table 3 on page 52 for
detailed field descriptions.
Figure 11 ZyXEL Utility: Link Info
7Open your Internet browser and enter http://www.zyxel.com or the URL of any other web
site in the address bar. If you are able to access the web site, your wireless connection is
successfully configured. If you cannot access the web site, check the Troubleshooting
section of this User's Guide or contact your network administrator if necessary.
2.2 Creating and Using a Profile
A profile lets you automatically connect to the same wireless network every time you use the
ZyXEL utility. You can also configure different profiles for different networks, for example if
you connect a notebook computer to wireless networks at home and at work.
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32 Chapter 2 Tutorial
This example illustrates how to set up a profile and connect the wireless client to an access
point configured for WPA-PSK security. In this example, the AP’s SSID is “SSID_Example3”
and its pre-shared key is “ThisismyWPA-PSKpre-sharedkey”. You have chosen the profile
name “PN_Example3”.
1Open the ZyXEL utility and click the Profile tab to open the screen as shown. Click Add
to configure a new profile.
Figure 12 ZyXEL Utility: Profile
2The Add New Profile screen appears. The wireless client automatically searches for
available wireless networks, which are displayed in the Scan Info box. You can also
configure your profile for a wireless network that is not in the list.
Figure 13 ZyXEL Utility: Add New Profile
3Give the profile a descriptive name (of up to 32 printable ASCII characters). Select
Infrastructure and either manually enter or select the AP's SSID in the Scan Info table
and click Select.
4Choose the same encryption method as the AP to which you want to connect (In this
example, WPA-PSK).
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Chapter 2 Tutorial 33
Figure 14 ZyXEL Utility: Profile Security
5This screen varies depending on the encryption method you selected in the previous
screen. In this example, enter the pre-shared key and leave the encryption type at the
default setting.
Figure 15 ZyXEL Utility: Profile Encryption
6Verify the profile settings in the ready-only screen. Click to save and go to the next Save
screen.
Figure 16 ZyXEL Utility: Profile Confirm Save
7Click Activate Now to use the new profile immediately. Otherwise, click the Activate
Later button to go back to the Profile List screen.
If you clicked Activate Later you can select the profile from the list in the Profile screen
and click Connect to activate it.
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34 Chapter 2 Tutorial
Note: Only one profile can be activated and used at any given time.
Figure 17 ZyXEL Utility: Profile Activate
8When you activate the new profile, the ZyXEL utility goes to the Link Info screen while
it connects to the AP using your settings. When the wireless link is established, the
ZyXEL utility icon in the system tray turns green and the Link Info screen displays
details of the active connection.
9Make sure the selected AP in the active profile is on and connected to the Internet. Open
your Internet browser, enter http://www.zyxel.com or the URL of any other web site in
the address bar and press ENTER. If you are able to access the web site, your new profile
is successfully configured.
10If you cannot access the Internet, go back to the Profile screen. Select the profile you are
using and click Edit. Check the details you entered previously. Also, refer to the
Troubleshooting section of this User's Guide or contact your network administrator if
necessary.
2.3 Configuring the AG-220 as an AP
Note: This mode is not available in the Windows Vista version of the utility.
In access point mode, your AG-220 allows you to set up your wireless network without using
a dedicated AP. Refer to Section 1.2.3 on page 25 and Chapter 5 on page 73 for more
information.
Note: With WZC, you cannot use the AG-220 as an access point.
After you install the ZyXEL utility and then insert the AG-220, follow the steps below to set
up your AG-220 as an AP.
1Select AP Mode in any utility screen and wait for five seconds. The screen changes and
displays as shown next. Under Status, you can view the current settings on the AG-220.
In the Association List, you can see if any wireless clients have connected to your AG-
220.
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Chapter 2 Tutorial 35
Figure 18 ZyXEL Utility: AP: Link Info
2If you want to change the SSID and enable wireless security for your AG-220, click the
Configuration tab and refer to Section 5.3 on page 75 for detailed field descriptions.
Note: Only WEP security is available when the AG-220 is in AP mode
Figure 19 ZyXEL Utility: AP: Configuration
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36 Chapter 2 Tutorial
ZyXEL AG-220 User’s Guide
Chapter 3 Wireless LAN Network 37
C 3H A P T E R
Wireless LAN Network
This chapter provides background information on wireless LAN networks.
3.1 Wireless LAN Overview
The following figure provides an example of a wireless network with an AP. See Figure 2 on
page 25 for an Ad Hoc network example.
Figure 20 Example of a Wireless Network
The wireless network is the part in the blue circle. In this wireless network, devices A and B
are called wireless clients. The wireless clients use the access point (AP) to interact with other
devices (such as the printer) or with the Internet
Every wireless network must follow these basic guidelines.
• Every device in the same wireless network must use the same SSID.
The SSID is the name of the wireless network. It stands for Service Set IDentity.
• If two wireless networks overlap, they should use a different channel.
Like radio stations or television channels, each wireless network uses a specific channel,
or frequency, to send and receive information.
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38 Chapter 3 Wireless LAN Network
• Every device in the same wireless network must use security compatible with the AP or
peer computer.
Security stops unauthorized devices from using the wireless network. It can also protect
the information that is sent in the wireless network.
3.2 Wireless LAN Security
Wireless LAN security is vital to your network to protect wireless communications.
Configure the wireless or the LAN security using the Configuration Profile Security Setting
screen. If you do not enable any wireless security on your AG-220, the AG-220’s wireless
communications are accessible to any wireless networking device that is in the coverage area.
Note: You can only use WEP encryption if you set the AG-220 to Ad-hoc or AP mode.
See the appendices for more detailed information about wireless security.
3.2.1 Hide SSID
Normally, the AG-220 in AP mode acts like a beacon and regularly broadcasts the SSID in the
area. You can hide the SSID instead, in which case the AG-220 in AP mode does not broadcast
the SSID. In addition, y e default SSID to something that is difficult to ou should change th
guess.
This type of security is fairly weak, however, because there are ways for unauthorized wireless
devices to get the SSID. In addition, unauthorized wireless devices can still see the
information that is sent in the wireless network.
3.2.2 MAC Address Filter
Every device that can use a wireless network has a unique identification number, called a
MAC address.1 A MAC address is usually written using twelve hexadecimal characters
2; for
example, 00A0C5000002 or 00:A0:C5:00:00:02.
To get the MAC address for each device in the wireless network, see the device’s User’s Guide
or other documentation. You can find the MAC address of the AG-220 by looking at the
sticker on the bottom of the device. Alternatively, use the utility in AP mode and look at the
Link Info screen. See Section 5.2 on page 74 for more details. You can also use the
Association List Link Info in the screen (in AP mode) to get the MAC addresses of other
wireless devices connected to the AG-220.
1. Some wireless devices, such as scanners, can detect wireless networks but cannot use wireless
networks. These kinds of wireless devices might not have MAC addresses.
2. Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
ZyXEL AG-220 User’s Guide
Chapter 3 Wireless LAN Network 39
You can use the MAC address filter to tell the AG-220 in AP mode which devices are allowed
or not allowed to use the wireless network. If a device is allowed to use the wireless network,
it still has to have the correct information (SSID, channel, and security). If a device is not
allowed to use the wireless network, it does not matter if it has the correct information.
This type of security does not protect the information that is sent in the wireless network.
Furthermore, there are ways for unauthorized wireless devices to get the MAC address of an
authorized device. Then, they can use that MAC address to access the wireless network.
3.2.3 User Authentication and Encryption
You can make every user log in to the wireless network before they can use it. This is called
user authentication. However, every wireless client in the wireless network has to support
IEEE 802.1x to do this.
Wireless networks can use encryption to protect the information that is sent in the wireless
network. Encryption is like a secret code. If you do not know the secret code, you cannot
understand the message.
3.2.3.1 WEP
3.2.3.1.1 Data Encryption
WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between
the AG-220 and the AP or other wireless stations to keep network communications private.
Both the wireless stations and the access points must use the same WEP key for data
encryption and decryption.
There are two ways to create WEP keys in your AG-220.
• Automatic WEP key generation based on a “password phrase” called a passphrase. The
passphrase is case sensitive. You must use the same passphrase for all WLAN adapters
with this feature in the same WLAN.
For WLAN adapters without the passphrase feat advantage of this ure, you can still take
feature by writing down the four automatically generated WEP keys from the Security
Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the
other WLAN adapter(s).
• Enter the WEP keys manually.
Your AG-220 allows you to configure up to four 64-bit, 128-bit or 256-bit WEP keys and
only one key is used as the default key at any one time.
3.2.3.1.2 Authentication Type
The IEEE 802.11b/g standard describes a simple authentication method between the wireless
stations and AP. Three authentication types are defined: Auto, Open System and Shared Key.
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40 Chapter 3 Wireless LAN Network
• Open System mode is implemented for ease-of-use and when security is not an issue.
The wireless station and the AP or peer computer do not share a secret key. Thus the
wireless stations can associate with any AP or peer computer and listen to any transmitted
data that is not encrypted.
• Shared Key mode involves a shared secret key to authenticate the wireless station to the
AP or peer computer. This requires you to enable the wireless LAN security and use same
settings on both the wireless station and the AP or peer computer.
• Auto authentication mode allows the AG-220 to switch between the open system and
shared key modes automatically. Use the auto mode if you do not know the authentication
mode of the other wireless stations.
3.2.3.2 IEEE 802.1x
The IEEE 802.1x standard outlines enhanced security methods for both the authentication of
wireless stations and encryption key management. Authentication can be done using an
external RADIUS server.
3.2.3.2.1 EAP Authentication
EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the
IEEE 802.1x transport mechanism in order to support multiple types of user authentication. By
using EAP to interact with an EAP-compatible RADIUS server, an access point helps a
wireless station and a RADIUS server perform authentication.
The type of authentication you use depends on the RADIUS server and an intermediary AP(s)
that supports IEEE 802.1x. The AG-220 supports EAP-TLS, EAP-TTLS and EAP-PEAP.
Refer to Appendix D on page 115 for descriptions.
For EAP-TLS authentication type, you must first have a wired connection to the network and
obtain the certificate(s) from a certificate authority (CA). Certificates (also called digital IDs)
can be used to authenticate users and a CA issues certificates and guarantees the identity of
each certificate owner.
3.2.3.3 WPA and WPA2
Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE
802.11i) is a wireless security standard that defines stronger encryption, authentication and
key management than WPA.
Key differences between WPA(2) and WEP are improved data encryption and user
authentication.
Both WPA and WPA2 improve data encryption by using Temporal Key Integrity Protocol
(TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA and WPA2 use Advanced
Encryption Standard (AES) in the Counter mode with Cipher block chaining Message
authentication code Protocol (CCMP) to offer stronger encryption than TKIP.
ZyXEL AG-220 User’s Guide
Chapter 3 Wireless LAN Network 41
If both an AP and the wireless clients support WPA2 and you have an external RADIUS
server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server,
you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical)
password entered into each access point, wireless gateway and wireless client. As long as the
passwords match, a wireless client will be granted access to a WLAN.
If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending
on whether you have an external RADIUS server or not.
Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is
less secure than WPA or WPA2.
3.3 WiFi Protected Setup
Note: This feature is for Windows Vista only.
When using the Windows Vista ZyXEL utility your AG-220 supports WiFi Protected Setup
(WPS), which is an easy way to set up a secure wireless network. WPS is an industry standard
specification, defined by the WiFi Alliance.
WPS allows you to quickly set up a wireless network with strong security, without having to
configure security settings manually. Each WPS connection works between two devices. Both
devices must support WPS (check each device’s documentation to make sure).
Depending on the devices you have, you can either press a button (on the device itself, or in its
configuration utility) or enter a PIN (a unique Personal Identification Number that allows one
device to authenticate the other) in each of the two devices. When WPS is activated on a
device, it has two minutes to find another device that also has WPS activated. Then, the two
devices connect and set up a secure network by themselves.
3.3.1 Push Button Configuration
WPS Push Button Configuration (PBC) is initiated by pressing a button on each WPS-enabled
device, and allowing them to connect automatically. You do not need to enter any information.
Not every WPS-enabled device has a physical WPS button. Some may have a WPS PBC
button in their configuration utilities instead of or in addition to the physical button.
Take the following steps to set up WPS using the button.
1Ensure that the two devices you want to set up are within wireless range of one another.
2Look for a WPS button on each device. If the device does not have one, log into its
configuration utility and locate the button (see the device’s User’s Guide for how to do
this - for the AG-220, see Section 4.7 on page 68).
3Press the button on one of the devices (it doesn’t matter which).
4Within two minutes, press the button on the other device. The registrar sends the network
name (SSID) and security key through an secure connection to the enrollee.
If you need to make sure that WPS worked, check the list of associated wireless clients in the
AP’s configuration utility. If you see the wireless client in the list, WPS was successful.
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42 Chapter 3 Wireless LAN Network
3.3.2 PIN Configuration
Each WPS-enabled device has its own PIN (Personal Identification Number). This may either
be static (it cannot be changed) or dynamic (in some devices you can generate a new PIN by
clicking on a button in the configuration interface).
Use the PIN method instead of the push-button configuration (PBC) method if you want to
ensure that the connection is established between the devices you specify, not just the first two
devices to activate WPS in range of each other. However, you need to log into the
configuration interfaces of both devices to use the PIN method.
When you use the PIN method, you must enter the PIN from one device (usually the wireless
client) into the second device (usually the Access Point or wireless router). Then, when WPS
is activated on the first device, it presents its PIN to the second device. If the PIN matches, one
device sends the network and security information to the other, allowing it to join the network.
Take the following steps to set up a WPS connection between an access point or wireless
router (referred to here as the AP) and a client device using the PIN method.
1Ensure WPS is enabled on both devices.
2Access the WPS section of the AP’s configuration interface. See the device’s User’s
Guide for how to do this.
3Look for the client’s WPS PIN; it will be displayed either on the device, or in the WPS
section of the client’s configuration interface (see the device’s User’s Guide for how to
find the WPS PIN - for the AG-220, see Section 3.3.1 on page 41).
4Enter the client’s PIN in the AP’s configuration interface.
Note: If the client device’s configuration interface has an area for entering another
device’s PIN, you can either enter the client’s PIN in the AP, or enter the AP’s
PIN in the client - it does not matter which.
5Start WPS on both devices within two minutes.
Note: Use the configuration utility to activate WPS, not the push-button on the device
itself.
6On a computer connected to the wireless client, try to connect to the Internet. If you can
connect, WPS was successful.
If you cannot connect, check the list of associated wireless clients in the AP’s
configuration utility. If you see the wireless client in the list, WPS was successful.
The following figure shows a WPS-enabled wireless client (installed in a notebook computer)
connecting to the WPS-enabled AP via the PIN method.
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44 Chapter 3 Wireless LAN Network
Figure 22 How WPS works
The roles of registrar and enrollee last only as long as the WPS setup process is active (two
minutes). The next time you use WPS, a different device can be the registrar if necessary.
The WPS connection process is like a handshake; only two devices participate in each WPS
transaction. If you want to add more devices you should repeat the process with one of the
existing networked devices and the new device.
Note that the access point (AP) is not always the registrar, and the wireless client is not always
the enrollee. All WPS-certified APs can be a registrar, and so can some WPS-enabled wireless
clients.
By default, a WPS devices is “unconfigured”. This means that it is not part of an existing
network and can act as either enrollee or registrar (if it supports both functions). If the registrar
is unconfigured, the security settings it transmits to the enrollee are randomly-generated. Once
a WPS-enabled device has connected to another device using WPS, it becomes “configured”.
A configured wireless client can still act as enrollee or registrar in subsequent WPS
connections, but a configured access point can no longer act as enrollee. It will be the registrar
in all subsequent WPS connections in which it is involved. If you want a configured AP to act
as an enrollee, you must reset it to its factory defaults.
3.3.3.1 Example WPS Network Setup
This section shows how security settings are distributed in an example WPS setup.
The following figure shows an example network. In step 1, both AP1 and Client 1 are
unconfigured. When WPS is activated on both, they perform the handshake. In this example,
AP1 is the registrar, and randomly generates the security Client 1 is the enrollee. The registrar
information to set up the network, since it is unconfigured and has no existing information.
SECURE TUNNEL
SECURITY INFO
WITHIN 2 MINUTES
COMMUNICATION
ACTIVATE
WPS
ACTIVATE
WPS
WPS HANDSHAKE
REGISTRARENROLLEE
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Chapter 3 Wireless LAN Network 45
Figure 23 WPS: Example Network Step 1
In step 2, you add another wireless client to the network. You know that Client 1 supports
registrar mode, but it is better to use AP1 for the WPS handshake with the new client since
you must connect to the access point anyway in order to use the network. In this case, AP1
must be the registrar, since it is configured (it already has security information for the
network). AP1 supplies the existing security information to Client 2.
Figure 24 WPS: Example Network Step 2
In step 3, you add another access point (AP2) to your network. AP2 is out of range of AP1, so
you cannot use AP1 for the WPS handshake with the new access point. However, you know
that Client 2 supports the registrar function, so you use it to perform the WPS handshake
instead.
REGISTRARENROLLEE
SECURITY INFO
CLIENT 1 AP1
REGISTRAR
CLIENT 1 AP1
ENROLLEE
CLIENT 2
EXISTING CONNECTION
SECURITY INFO
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46 Chapter 3 Wireless LAN Network
Figure 25 WPS: Example Network Step 3
3.3.4 Limitations of WPS
WPS has some limitations of which you should be aware.
• WPS works in Infrastructure networks only (where an AP and a wireless client
communicate). It does not work in Ad-Hoc networks (where there is no AP).
• When you use WPS, it works between two devices only. You cannot enroll multiple
devices simultaneously, you must enroll one after the other.
For instance, if you have two enrollees and one registrar you must set up the first enrollee
(by pressing the WPS button on the registrar and the first enrollee, for example), then
check that it successfully enrolled, then set up the second device in the same way.
• WPS works only with other WPS-enabled devices. However, you can still add non-WPS
devices to a network you already set up using WPS.
WPS works by automatically issuing a randomly-generated WPA-PSK or WPA2-PSK
pre-shared key from the registrar device to the enrollee device. Whether the network uses
WPA-PSK or WPA2-PSK depends on the device. You can check the configuration
interface of the registrar device to discover the key the network is using (if the device
supports this feature). Then, you can enter the key into the non-WPS device and join the
network as normal (the non-WPS device must also support WPA-PSK or WPA2-PSK).
• When you use the PBC method, there is a short period (from the moment you press the
button on one device to the moment you press the button on the other device) when any
WPS-enabled device could join the network. This is because the registrar has no way of
identifying the “correct” enrollee, and cannot differentiate between your enrollee and a
rogue device. This is a possible way for a hacker to gain access to a network.
CLIENT 1 AP1
REGISTRAR
CLIENT 2
EXISTING CONNECTION
SECURITY INFO
ENROLLEE
AP1
EXISTING CONNECTION
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Chapter 3 Wireless LAN Network 47
You can easily check to see if this has happened. WPS works between only two devices
simultaneously, so if another device has enrolled your device will be unable to enroll, and
will not have access to the network. If this happens, open the access point’s configuration
interface and look at the list of associated clients (usually displayed by MAC address). It
does not matter if the access point is the WPS registrar, the enrollee, or was not involved
in the WPS handshake; a rogue device must still associate with the access point to gain
access to the network. Check the MAC addresses of your wireless clients (usually printed
on a label on the bottom of the device). If there is an unknown MAC address you can
remove it or reset the AP.
3.4 Introduction to OTIST
In a wireless network, the wireless clients must have the same SSID and security settings as
the access point (AP) or wireless router (we will refer to both as “AP” here) in order to
associate with it. Traditionally this meant that you had to configure the settings on the AP and
then manually configure the exact same settings on each wireless client.
OTIST (One-Touch Intelligent Security Technology) allows you to transfer your AP’s SSID
and WEP or WPA-PSK security settings to wireless clients that support OTIST and are within
transmission range. You can also choose to have OTIST generate a WPA-PSK key for you if
you didn’t configure one manually.
3.4.1 Enabling OTIST
You must enable OTIST on both the AP and wireless client before you start transferring
settings.
We use the P-334U in this guide as the example AP. Screens may vary slightly for your
ZyXEL devices.
Note: The AP and wireless client(s) MUST use the same Setup key.
3.4.1.1 AP
On the P-334U, you can enable OTIST using the OTIST button or the web configurator. If
you use the OTIST button, the default (01234567) or previous saved (through the web
configurator) Setup key is used to encrypt the settings that you want to transfer.
Hold in the OTIST button for about two seconds.
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In the web configurator, go to the Wireless LAN main screen and then select OTIST. To
change the Setup key, enter zero to eight printable characters. To have OTIST automatically
generate a WPA-PSK key, select the Yes! check box. If you manually configured a WEP key
or a WPA-PSK key and you also selected this check box, then the key you manually
configured is used.
3.4.1.2 Wireless Client
Start the ZyXEL utility and click the Adapter tab. Select the OTIST check box, enter the
same Setup Key as your AP and click Save.
3.4.2 Starting OTIST
Note: You must click Start in the AP OTIST web configurator screen and in the
wireless client(s) Adapter screen all within three minutes (at the time of
writing). You can start OTIST in the wireless clients and AP in any order but
they must all be within range and have OTIST enabled.
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Chapter 3 Wireless LAN Network 49
3.4.3 Notes on OTIST
1If you enabled OTIST in the wireless client, you see this screen each time you start the
utility. Click Yes for it to search for an OTIST-enabled AP.
2If an OTIST-enabled wireless client loses its wireless connection for more than ten
seconds, it will search for an OTIST-enabled AP for up to one minute. (If you manually
have the wireless client search for an OTIST-enabled AP, there is no timeout; click
Cancel in the OTIST progress screen to stop the search.)
3When the wireless client finds an OTIST-enabled AP, you must still click Start in the AP
OTIST web configurator screen or hold in the Reset button (for one or two seconds) for
the AP to transfer settings.
4If you change the SSID or the keys on the AP after using OTIST, you need to run OTIST
again or enter them manually in the wireless client(s).
1In the AP, a web configurator screen pops
up showing you the security settings to
transfer. After reviewing the settings, click
OK.
2This screen appears while OTIST settings are being transferred. It closes when the
transfer is complete.
• In the wireless client, you see this screen if
it can't find an OTIST-enabled AP (with the
same Setup key). Click OK to go back to
the ZyXEL utility main screen.
• If there is more than one OTIST-enabled AP within range, you see a screen asking you to
select one AP to get settings from.
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5If you configure OTIST to generate a WPA-PSK key, this key changes each time you run
OTIST. Therefore, if a new wireless client joins your wireless network, you need to run
OTIST on the AP and ALL the wireless clients again.
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Chapter 4 Wireless Station Mode Configuration 51
C 4H A P T E R
Wireless Station Mode
Configuration
This chapter shows you how to configure your AG-220 in wireless station mode. See
Chapter 5 on page 73 for how to configure the AG-220 in access point mode.
4.1 Wireless Station Mode Overview
To set your AG-220 to wireless station mode, select Station Mode in any utility screen (refer
to Section 1.2.3 on page 25).
4.1.1 ZyXEL Utility Screen Summary
This section describes the ZyXEL utility screens when the AG-220 is in station mode.
Figure 26 ZyXEL Utility Menu Summary: Station Mode
The following table describes the menus.
Table 2 ZyXEL Utility Menu Summary: Station Mode
TAB DESCRIPTION
Station Mode
Link Info Use this screen to see your current connection status, configuration and data rate
statistics.
Site Survey Use this screen to
• scan for a wireless network
• configure wireless security (if activated on the selected network).
• connect to a wireless network.
Profile Use this screen to add, delete, edit or activate a profile with a set of wireless and
security settings.
Advanced Use this screen to change the wireless network mode.
Adapter Use this screen to configure a transfer rate, enable power saving and use OTIST
(One-Touch Intelligent Security Technology).
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4.2 The Link Info Screen
When the ZyXEL utility starts, the Link Info screen displays, showing the current
configuration and connection status of your AG-220.
Figure 27 Station Mode: Link Info
The following table describes the labels in this screen.
Table 3 Station Mode: Link Info
LABEL DESCRIPTION
AP Mode
Station Mode
Use the check box to set the AG-220 to operate in wireless station or access point
mode. Refer to Section 1.2.3 on page 25 for more information.
Wireless Network
Status
Profile Name This is the name of the profile you are currently using.
Network Name
(SSID)
The SSID identifies the wireless network to which a wireless station is associated.
This field displays the name of the wireless device to which the AG-220 is
associated.
AP MAC Address This field displays the MAC address of the AP or peer computer to which the AG-
220 is associated.
Network Type This field displays the network type (Infrastructure or Ad-Hoc) of the wireless
network.
Transmission Rate This field displays the current transmission rate of the AG-220 in megabits per
second (Mbps).
Security This field displays whether data encryption is activated (WEP (WEP or 802.1x),
TKIP (WPA/WPA-PSK/WPA2/WPA2-PSK), AES (WPA/WPA-PSK/WPA2/WPA2-
PSK)) or inactive (DISABLE).
Channel This field displays the radio channel the AG-220 is currently using.
Statistics
Transmit Rate This field displays the current data transmission rate in kilobits per second (Kbps).
Receive Rate This field displays the current data receiving rate in kilobits per second (Kbps).
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Chapter 4 Wireless Station Mode Configuration 53
4.2.1 Trend Chart
Click Trend Chart in the Link Info screen to display a screen as shown below. Use this
screen to view real-time data traffic statistics.
Figure 28 Station Mode: Link Info: Trend Chart
The following table describes the labels in this screen.
Authentication This field displays the authentication method of the AG-220.
Network Mode This field displays the wireless standard (A, B or G) of the AP or peer computer.
Total Transmit This field displays the total number of data frames transmitted.
Total Receive This field displays the total number of data frames received.
Link Quality This field displays the signal strength of the AG-220.
Trend Chart Click this button to display the real-time statistics of the data rate in kilobits per
second (Kbps).
Signal Strength The status bar shows the strength of the signal. The signal strength mainly
depends on the antenna output power and the distance between your AG-220 and
the AP or peer computer.
Link Quality The status bar shows the quality of wireless connection. This refers to the
percentage of packets transmitted successfully. If there are too many wireless
stations in a wireless network, collisions may occur which could result in a loss of
messages even though you have high signal strength.
Table 3 Station Mode: Link Info (continued)
LABEL DESCRIPTION
Table 4 Station Mode: Link Info: Trend Chart
LABEL DESCRIPTION
Transmit This field displays the current data transmission rate in kilobits per second (Kbps).
Receive This field displays the current data receiving rate in kilobits per second (Kbps).
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4.3 The Site Survey Screen
Use the Site Survey screen to scan for and connect to a wireless network automatically.
Figure 29 Station Mode: Site Survey
The following table describes the labels in this screen.
Table 5 Station Mode: Site Survey
LABEL DESCRIPTION
Available Network
List
Click a column heading to sort the entries.
,
,
or
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless
security is deactivated.
SSID This field displays the SSID (Service Set IDentifier) of each wireless device.
Channel This field displays the channel number used by each wireless device.
Signal This field displays the signal strength of each wireless device.
Scan Click Scan to search for available wireless devices within transmission range.
Connect Click Connect to associate to the selected wireless device.
Site Information Click an entry in the Available Network List table to display the information of the
selected wireless device.
Network Type This field displays the network type (Infrastructure or Ad Hoc) of the wireless
device.
Channel This field displays the channel number used by each wireless device.
Encryption This field shows whether data encryption is activated (WEP (WEP or 802.1x),
WPA, WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).
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Chapter 4 Wireless Station Mode Configuration 55
4.3.1 Security Settings
When you configure the AG-220 to connect to a network with wireless security activated and
the security settings are disabled on the AG-220, the screen varies according to the encryption
method used by the selected network.
4.3.1.1 WEP Encryption
Figure 30 Station Mode: Security Setting: WEP
The following table describes the labels in this screen.
MAC address This field displays the MAC address of the wireless device.
Surveyed at This field displays the time when the wireless device was scanned.
Table 5 Station Mode: Site Survey (continued)
LABEL DESCRIPTION
Table 6 Station Mode: Security Setting: WEP
LABEL DESCRIPTION
Security Settings
WEP Select 64 Bits, 128 Bits or 256 Bits to activate WEP encryption and then fill in the
related fields.
Encryption Type Select an authentication method. Choices are SHARED and OPEN.
Refer to Section 3.2.3.1.2 on page 39 for more information.
Pass Phrase Enter a passphrase of up to 63 case-sensitive printable characters. As you enter
the passphrase, the AG-220 automatically generates four different WEP keys and
displays it in the key field below. Refer to Section 3.2.3.1.1 on page 39 for more
information.
At the time of writing, you cannot use the passphrase function to generate 256-bit
WEP keys.
Transmit Key Select a default WEP key to use for data encryption. The key displays in the field
below.
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4.3.1.2 WPA-PSK/WPA2-PSK
Figure 31 Station Mode: Security Setting: WPA-PSK/WPA2-PSK
Key x (where x is a
number between 1
and 4)
Select this option if you want to manually enter the WEP keys. Enter the WEP key
in the field provided.
If you select 64 Bits in the WEP field.
Enter either 10 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 11AA22BB33) for HEX key type.
or
Enter 5 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey) for ASCII key type.
If you select 128 Bits in the WEP field,
Enter either 26 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 00112233445566778899AABBCC) for HEX key type
or
Enter 13 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey12345678) for ASCII key type.
If you select 256 Bits in the WEP field,
Enter either 58 hexadecimal digits in the range of "A-F", "a-f" and "0-9" (for
example,
0000111122223333444455556666777788889999AAAABBBBCCCC000011)
for HEX key type
or
Enter 29 ASCII characters (case sensitive) ranging from "a-z", "A-Z" and "0-9"
(for example, MyKey111122223333444455556678) for ASCII key type.
Note: The values for the WEP keys must be set up exactly the
same on all wireless devices in the same wireless LAN.
ASCII WEP keys are case sensitive.
Back Click Back to go to the Site Survey screen to select and connect to another
network.
Next Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 4.3.2 on page 60.
Exit Click Exit to return to the Site Survey screen without saving.
Table 6 Station Mode: Security Setting: WEP (continued)
LABEL DESCRIPTION
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4.3.1.4 IEEE 802.1x
Configure IEEE 802.1x security with various authentication methods in this screen.
Note: At the time of writing Login Name and Password are not available on
Windows Vista.
Figure 33 Station Mode: Security Setting: 802.1x
Login Name Enter a user name.
This is the user name that you or an administrator set up on a RADIUS server.
Note: At the time of writing this field is not available on Windows
Vista.
Password This field is not available when you select TLS in the Authentication Type field.
Enter the password associated with the user name above.
Note: At the time of writing this field is not available on Windows
Vista.
Certificate This field is only available when you select TLS in the Authentication Type field.
Click Browse to select a certificate.
Note: You must first have a wired connection to a network and
obtain the certificate(s) from a certificate authority (CA).
Consult your network administrator for more information.
Validate Server
Certificate
Select the check box to check the certificate of the authentication server.
PEAP Inner EAP This field is only available when you select PEAP in the Authentication Type field.
The PEAP method used by the RADIUS server or AP for client authentication is
MS CHAP v2.
Back Click Back to go to the Site Survey screen to select and connect to another
network.
Next Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 4.3.2 on page 60.
Exit Click Exit to return to the Site Survey screen without saving.
Table 8 Station Mode: Security Setting: WPA/WPA2
LABEL DESCRIPTION
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Chapter 4 Wireless Station Mode Configuration 59
The following table describes the labels in this screen.
4.3.2 Confirm Save Screen
Use this screen to confirm and save the security settings.
Table 9 Station Mode: Security Settings: IEEE 802.1x
LABEL DESCRIPTION
Authentication
Type
The type of authentication you use depends on the RADIUS server or AP.
Select an authentication method from the drop down list. Options are TLS and
PEAP.
Login Name Enter a user name.
This is the user name that you or an administrator set up on a RADIUS server.
Note: At the time of writing this field is not available on Windows
Vista.
Password This field is not available when you select TLS in the Authentication Type field.
Enter the password associated with the user name above.
Note: At the time of writing this field is not available on Windows
Vista.
Certificate This field is only available when you select TLS in the Authentication Type field.
Click Browse to select a certificate.
Note: You must first have a wired connection to a network and
obtain the certificate(s) from a certificate authority (CA).
Consult your network administrator for more information.
Validate Server
Certificate
Select the check box to check the certificate of the authentication server.
PEAP Inner EAP This field is only available when you select PEAP in the Authentication Type field.
The PEAP method used by the RADIUS server or AP for client authentication is
MS CHAP v2.
Back Click Back to go to the Site Survey screen to select and connect to another
network.
Next Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 4.3.2 on page 60.
Exit Click Exit to return to the Site Survey screen without saving.
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Figure 34 Confirm Save Screen
The following table describes the labels in this screen.
4.4 The Profile Screen
A profile is a set of wireless parameters that you need to connect to a wireless network. With a
profile activated, each time you start the AG-220, it automatically scans for the specific SSID
and joins that network with the pre-defined wireless security settings. If the specified network
is not available, the AG-220 cannot connect to a network.
If you do not configure and activate a profile, each time you start the AG-220, the AG-220
uses the default profile to connect to any available network that has no security enabled.
The default profile is a profile that allows you to connect to any SSID that has no security
enabled.
Table 10 Confirm Save Screen
LABEL DESCRIPTION
Security Setting
Network Name This field displays the SSID previously entered.
Network Type This field displays the network type (Infrastructure or Ad-Hoc) of the wireless
device.
Channel This field displays the channel number used by the profile.
Security This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA,
WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).
Back Click Back to return to the previous screen.
Save Click Save to save the changes back to the AG-220 and display the Link Info
screen.
Exit Click Exit to discard changes and return to the Site Survey screen.
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Chapter 4 Wireless Station Mode Configuration 61
Click the Profile tab in the ZyXEL utility program to display the Profile screen as shown next.
The profile function allows you to save the wireless network settings in this screen, or use one
of the pre-configured network profiles.
Figure 35 Station Mode: Profile
The following table describes the labels in this screen.
Table 11 Station Mode: Profile
LABEL DESCRIPTION
Profile List Click a column heading to sort the entries.
,
,
or
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless
security is deactivated.
Profile Name This is the name of the pre-configured profile.
SSID This is the SSID of the wireless network to which the selected profile associate.
Connect To use and activate a previously saved network profile, select a pre-configured
profile name in the table and click Connect.
Add To add a new profile into the table, click Add.
Delete To delete an existing wireless network configuration, select a profile in the table
and click Delete.
Edit To edit an existing wireless network configuration, select a profile in the table and
click Edit.
Profile Info The following fields display detailed information of the selected profile in the
Profile List table.
Network Type This field displays the network type ( ) of the profile.Infrastructure or Ad-Hoc
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4.4.1 Adding a New Profile
Follow the steps below to add a new profile.
1Click Add in the Profile screen. An Add New Profile screen displays as shown next.
Click Next to continue.
Figure 36 Station Mode: Profile: Add a New Profile
The following table describes the labels in this screen.
SSID This field displays the SSID (Service Set IDentifier) of the profile.
Channel This field displays the channel number used by the profile.
Security This field shows whether data encryption is activated (WEP (WEP or 802.1x),
WPA, WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).
Transfer Rate This field displays the transmission speed of the selected profile in megabits per
second (Mbps).
Table 11 Station Mode: Profile (continued)
LABEL DESCRIPTION
Table 12 Station Mode: Profile: Add a New Profile
LABEL DESCRIPTION
Add New Profile
Profile Name Enter a descriptive name in this field.
SSID Select an available wireless device in the Scan Info table and click Select, or enter
the SSID of the wireless device to which you want to associate in this field
manually. Otherwise, enter Any to have the AG-220 associate to any AP or roam
between any infrastructure wireless networks.
Network Type Select Infrastructure to associate to an AP. Select Ad-Hoc to associate to a peer
computer.
Next Click Next to go to the next screen.
Exit Click Exit to go back to the previous screen without saving.
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Chapter 4 Wireless Station Mode Configuration 63
2If you select the Infrastructure network type in the previous screen, skip to step 3. If you
select the een, a screen displays as follows. Ad-Hoc network type in the previous scr
Select a channel number and click Next to continue. If you are using Windows Vista this
screen will not display, skip to step 3.
Note: To associate to an ad-hoc network, you must use the same channel as the peer
computer.
Figure 37 Station Mode: Profile: Select a Channel
Scan Info This table displays the information of the available wireless networks within the
transmission range.
,
,
or
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless security
is deactivated.
SSID This field displays the SSID (Service Set IDentifier) of each AP or peer device.
Scan Click Scan to search for available wireless devices within transmission range.
Select Select an available wireless device in the table and click Select to add it to this
profile.
Whenever you activate this profile, the AG-220 associates to the selected wireless
network only.
Table 12 Station Mode: Profile: Add a New Profile (continued)
LABEL DESCRIPTION
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The following table describes the labels in this screen.
3If you selected Infrastructure network type in the first screen, select WEP, WPA ,
WPA2, WPA-PSK, WPA2-PSK or 802.1x from the drop-down list box to enable data
encryption. If you selected Ad-Hoc network type in the first screen, you can only use
WEP encryption method. Otherwise, select DISABLE to allow the AG-220 to
communicate with the access points or other peer wireless computers without any data
encryption, and skip to step 5.
Figure 38 Station Mode: Profile: Wireless Settings
4The screen varies depending on the encryption method you select in the previous screen.
The settings must be exactly the same on the APs or other peer wireless computers as
they are on the AG-220. Refer to Section 4.3.1 on page 55 for detailed information on
wireless security configuration.
Table 13 Station Mode: Profile: Select a Channel
LABEL DESCRIPTION
Wireless Settings
Channel Select a channel number from the drop-down list box. To associate to an ad-hoc
network, you must use the same channel as the peer computer.
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Chapter 4 Wireless Station Mode Configuration 65
Figure 39 Station Mode: Profile: Security Settings
5This read-only screen shows a summary of the new profile settings. Verify that the
settings are correct. Click Save to save and go to the next screen. Click to return to Back
the previous screen. Otherwise, click Exit to go back to the Profile screen without saving.
Figure 40 Station Mode: Profile: Confirm New Settings
6To use this network profile, click the Activate Now button. Otherwise, click the Activate
Later button. You can activate only one profile at a time.
Note: Once you activate a profile, the ZyXEL utility will use that profile the next time it
is started.
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Figure 41 Station Mode: Profile: Activate the Profile
4.5 The Advanced Screen
To set the network mode of the AG-220, click the Advanced tab.
Note: This screen is not available in Windows Vista.
Figure 42 Station Mode: Advanced
The following table describes the labels in this screen.
Table 14 Station Mode: Advanced
LABEL DESCRIPTION
Advanced Setting
Frequency Choose a network mode. Select Auto (default) to have your AG-220
automatically connect to other wireless devices in IEEE 802.11a, b or g
modes. Select 11a to have your AG-220 connect to other wireless devices in
IEEE 802.11a mode only, or 11b+11g to have your AG-220 connect to other
wireless devices in IEEE 802.11b and 802.11g modes only.
Save Click Save to save the changes to the AG-220. If you are connected to a
wireless network when changing network modes, the AG-220 will disconnect
and then attempt to reestablish the connection using the new setting.
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Chapter 4 Wireless Station Mode Configuration 67
4.6 The Adapter Screen
To set the other advanced features on the AG-220, click the Adapter tab.
Note: This screen is different in Windows Vista. Please refer to Section 4.7 on
page 68 for the Windows Vista screen.
Figure 43 Station Mode: Adapter
The following table describes the labels in this screen.
Table 15 Station Mode: Adapter
LABEL DESCRIPTION
Adapter Setting
Transmission Rate In most networking scenarios, the factory default Fully Auto setting is the most
efficient and allows your AG-220 to operate at the highest possible transmission
(data) rate.
If you want to select a specific transmission rate, select one that the AP or peer
wireless device supports.
Note: With USB 1.0/1.1, the AG-220 can only transmit at up to
11Mbps.
Preamble Type Preamble is used to signal that data is coming to the receiver. Select the preamble
type that the AP uses.
Short preamble increases performance as less time sending preamble means
more time for sending data. All IEEE 802.11b/g compliant wireless adapters
support Long preamble, but not all support short preamble.
Select Auto to have the AG-220 automatically use short preamble when all access
point or wireless stations support it; otherwise the AG-220 uses long preamble.
Note: The AG-220 and the access point or wireless stations MUST
use the same preamble mode in order to communicate.
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68 Chapter 4 Wireless Station Mode Configuration
4.7 The Adapter Screen (Windows Vista)
This screen is only available in the Windows Vista version of the utility. To set the other
advanced features on the AG-220, click the Adapter tab.
Figure 44 Station Mode: Adapter (Windows Vista)
Power Saving
Mode
Select Maximum Power Save or Fast Power Save to save power (especially for
notebook computers). This forces the AG-220 to go to sleep mode when it is not
transmitting data.
When you select Continuous Access Mode, the AG-220 will never go to sleep
mode.
OTIST (One-
Touch Intelligent
Security
Technology)
Select this check box to enable OTIST.
Setup Key Enter the same setup key (up to eight printable characters) as the ZyXEL AP or
wireless router to which you want to associate. The default OTIST setup key is
"01234567".
Note: If you change the OTIST setup key on the ZyXEL AP or
wireless router, you must also make the same change here.
Start Click Start to encrypt the wireless security data using the setup key and have the
ZyXEL AP or wireless router set your AG-220 to use the same wireless settings as
the ZyXEL AP or wireless router. You must also activate and start OTIST on the
ZyXEL AP or wireless router all within three minutes. See Section 3.4 on page 47
for more information.
Save Click screen.Save to save the changes to the AG-220 and return to the Link Info
Table 15 Station Mode: Adapter (continued)
LABEL DESCRIPTION
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Chapter 4 Wireless Station Mode Configuration 69
The following table describes the labels in this screen.
4.8 Security Settings in Windows Vista
When you use the AG-220 in Windows Vista, the procedure for setting up WPA, WPA2 and
802.1x security settings is different from that of other operating systems (other security types
are not affected).
The procedures for setting up WPA, WPA2 or 802.1x in Vista are the same. However, the
procedure differs depending on whether you use PEAP (Protected Extensible Authentication
Protocol) or TLS (Transport Layer Security) encryption. Consult your network administrator
if you are unsure which type of encryption to use.
See Section 4.8.1 on page 70 to use PEAP, or see Section 4.8.2 on page 70 to use TLS.
Table 16 Station Mode: Adapter (Windows Vista)
LABEL DESCRIPTION
Adapter Setting
OTIST (One-
Touch Intelligent
Security
Technology)
Select this check box to enable OTIST.
Setup Key Enter the same setup key (up to eight printable characters) as the ZyXEL AP or
wireless router to which you want to associate. The default OTIST setup key is
"01234567".
Note: If you change the OTIST setup key on the ZyXEL AP or
wireless router, you must also make the same change here.
Start Click Start to encrypt the wireless security data using the setup key and have the
ZyXEL AP or wireless router set your AG-220 to use the same wireless settings as
the ZyXEL AP or wireless router. You must also activate and start OTIST on the
ZyXEL AP or wireless router all within three minutes.
WPS (Wi-Fi
Protected Setup)
Select this to enable Wi-fi Protected Setup on the AG-220.
PBC Select this to use the PBC (Push-Button Configuration) WPS mode. When you use
the PBC mode you do not use a PIN.
PIN Select this to use the PIN (Personal Identification Number) WPS mode. Use this
option when you want to enter the AG-220’s PIN in another WPS-enabled device.
The PIN will be displayed in the field on the right. Click PIN again to generate a
new PIN.
Manual Input Select this check box to manually enter the PIN into the field on the right. This
could be a PIN from another WPS-enabled device or a PIN you will type into the
other WPS-enabled device.
Start Click Start once you have selected the PBC or PIN settings. A screen will appear
that states the WPS is in progress. You must now start WPS on the other WPS-
enabled device within two minutes or the connection will time out. If the two WPS
devices connect you will receive a successful connection message.
Save Click Save to save the changes back to the AG-220 and return to the Link Info
screen.
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70 Chapter 4 Wireless Station Mode Configuration
4.8.1 Using PEAP in Vista
Take the following steps to set up WPA, WPA2 or 802.1x security using PEAP in Windows
Vista.
1Either select the AP to which you want to connect in the Site Survey screen (see Section
4.3 on page 54), or configure a profile in the normal way (see Section 4.4 on page 60).
2In the WPA, WPA2 or 802.1x security screen (see Section 3.2.3.2 on page 40 and
Section 3.2.3.3 on page 40), select PEAP as the EAP Type. Note that the Login Name,
Logon Domain, and Password fields are not available in the Vista utility, you will be
able to enter them in the Vista Security screen below.
3Click Next.
4In the Summary screen that appears, click Save.
5A message similar to the following appears in the bottom-right of your screen. Click the
message.
Figure 45 Vista Security: Additional Information Required
6The Enter Credentials screen displays. Enter your User name and Password for the
network to which you want to connect.
Figure 46 Vista Security: Enter Credentials
Note: If you are not sure what to enter, contact your network administrator.
7Click OK. The Enter Credentials screen disappears and the AG-220 tries to connect to
the network. The ZyXEL utility’s Link Info screen displays, showing the connection
status (see Section 4.2 on page 52). If the Link Info screen displays an active
connection, you have successfully completed the procedure.
4.8.2 Using TLS in Vista
Take the following steps to set up WPA, WPA2 or 802.1x security using TLS in Windows
Vista.
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Chapter 4 Wireless Station Mode Configuration 71
1Either select the AP to which you want to connect in the Site Survey screen (see Section
4.3 on page 54), or configure a profile (see Section 4.4 on page 60) in the normal way.
2In the WPA, WPA2 or 802.1x security screen, select TLS as the EAP Type. Note that
the Login Name and Certificate fields are not available. You will be able to configure
these soon in the Vista Security screens below.
3Click Next.
4In the Summary screen, click Save.
5A message similar to the following appears in the bottom-right of your screen. Click the
message.
Figure 47 Vista Security: Additional Information Required
6The Select Certificate screen displays. Select the certificate you want to use in order to
authenticate with the server, and enter your username.
Figure 48 Vista Security: Select Certificate
Note: If you do not have the right certificate, or are not sure which certificate you
should use, contact your network administrator.
7Click OK. The Select Certificate screen disappears and the AG-220 tries to connect to
the network. The ZyXEL utility’s Link Info screen displays, showing the connection
status (see Section 4.2 on page 52). If the Link Info screen displays an active
connection, you have successfully completed the procedure.
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72 Chapter 4 Wireless Station Mode Configuration
ZyXEL AG-220 User’s Guide
Chapter 5 Access Point Mode Configuration 73
C 5H A P T E R
Access Point Mode
Configuration
This chapter shows you how to configure your AG-220 in access point mode.
Note: Access Point Mode is not available in Windows Vista.
5.1 Access Point Mode Introduction
To set your AG-220 to access point (AP) mode, select AP Mode in any utility screen (refer to
Section 1.2.3 on page 25).
Access point mode allows you to set up your wireless networks without using a dedicated AP.
5.1.1 ZyXEL Utility Screen Summary
This section describes the ZyXEL utility screens when the AG-220 is in AP mode.
Figure 49 ZyXEL Utility Menu Summary: AP Mode
The following table describes the menus.
Table 17 ZyXEL Utility Menu Summary: AP Mode
TAB DESCRIPTION
AP Mode
Link Info Use this screen to see your current connection status, configuration and data rate
statistics.
Configuration Use this screen to configure wireless LAN settings.
Advanced Use this screen to change the wireless network mode.
MAC Filter Use this screen to configure which computer(s) you want access to the wireless
LAN through the AG-220.
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Chapter 5 Access Point Mode Configuration 75
5.3 The Configuration Screen
Click Configuration in the ZyXEL utility screen to display the screen as shown.
Figure 51 Access Point Mode: Configuration
Security This field shows whether data encryption is activated (WEP) or inactive
(DISABLE).
MAC This field displays the MAC address of the AG-220.
Output Power This field shows the strength of the AG-220’s antenna gain or transmission power.
Association List This table lists up to 16 wireless clients that are currently connected to the AG-220.
denotes a wireless client without WEP security.
denotes a wireless client with WEP security enabled.
MAC Address This field displays the MAC addresses of a wireless client that is currently
connected to the AG-220.
Refresh Click Refresh to update this screen.
Table 18 Access Point Mode: Link Info (continued)
LABEL DESCRIPTION
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76 Chapter 5 Access Point Mode Configuration
The following table describes the labels in this screen.
Table 19 Access Point Mode: Configuration
LABEL DESCRIPTION
Wireless Settings
SSID The SSID identifies the wireless network to which a wireless station is associated.
Wireless stations associating to the access point (the AG-220) must have the
same SSID.
Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the
wireless LAN.
Hide SSID Select this check box to hide the SSID so an intruder cannot obtain the SSID
through scanning using a site survey tool.
Channel Set the operating frequency/channel depending on your geographical region.
Output Power Set this field if you need to conserve power consumption (especially for notebook
computers). This control changes the strength of the AG-220’s antenna gain or
transmission power. Antenna gain, measured in dBm (decibel relative units
compared to milliwatts), is the increase in coverage. Higher antenna gain improves
the range of the signal for better communications.
Select High to set the AG-220’s antenna to transmit at 17-dBm.
Select Medium-High to set the AG-220’s antenna to transmit at 15-dBm.
Select Medium-Low to set the AG-220’s antenna to transmit at 13-dBm.
Select Low to set the AG-220’s antenna to transmit at 11-dBm. This allows for the
least power consumption.
Bridge Select the check box and an Ethernet adapter (network interface card (NIC)) on
your computer from the drop-down list box. This allows you to connect your
wireless network to the specified wired network.
Security Settings
WEP Select 64 Bits, 128 Bits or 256 Bits to activate WEP encryption and then fill in the
related fields.
Select Disable to deactivate the WEP encryption.
Authentication
Type
Select an authentication method. Choices are Auto, Shared Key and Open
System.
Refer to Section 3.2.3.1.2 on page 39 for more information.
Pass Phrase When you select the radio button, enter a passphrase of up to 63 case-sensitive
printable characters. As you enter the passphrase, the AG-220 automatically
generates four different WEP key and displays it in the key field below. Refer to
Section 3.2.3.1 on page 39 for more information.
At the time of writing, you cannot use passphrase to generate 256-bit WEP keys.
Transmit Key Select a default WEP key to use for data encryption. The key displays in the field
below.
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Chapter 5 Access Point Mode Configuration 77
5.4 The Advanced Screen
To set the network mode of the AG-220, click the Advanced tab.
Key x (where x is a
number between 1
and 4)
Select this option if you want to manually enter the WEP keys.
Enter the WEP key in the field provided.
If you select 64 Bits in the WEP field.
Enter either 10 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 11AA22BB33) for HEX key type
or
Enter 5 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey) for ASCII key type.
If you select 128 Bits in the WEP field,
Enter either 26 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 00112233445566778899AABBCC) for HEX key type
or
Enter 13 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey12345678) for ASCII key type.
If you select 256 Bits in the WEP field,
Enter either 58 hexadecimal digits in the range of "A-F", "a-f" and "0-9" (for
example,
0000111122223333444455556666777788889999AAAABBBBCCCC000011)
for HEX key type
or
Enter 29 ASCII characters (case sensitive) ranging from "a-z", "A-Z" and "0-9"
(for example, MyKey111122223333444455556678) for ASCII key type.
Note: The values for the WEP keys must be set up exactly the
same on all wireless devices in the same wireless LAN.
ASCII WEP keys are case sensitive.
Save Click Save to save the changes.
Cancel Click Cancel to discard the changes.
Table 19 Access Point Mode: Configuration (continued)
LABEL DESCRIPTION
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78 Chapter 5 Access Point Mode Configuration
Figure 52 Access Point Mode: Advanced
The following table describes the labels in this screen.
5.5 The MAC Filter Screen
The MAC Filter screen allows you to configure the AG-220 to give exclusive access to
devices (Accept) or exclude devices from connecting to the AG-220 (Reject). The MAC
address is assigned at the factory and consists of six pairs of hexadecimal characters, for
example, 00:A0:C5:00:00:02. You need to know the MAC address of the device(s) to
configure this screen. See Section 3.2.2 on page 38 for more information.
Table 20 Access Point Mode: Advanced
LABEL DESCRIPTION
Advanced Setting
Frequency Choose a network mode. Select 802.11b+g to have your AG-220 connect to
other wireless devices in either IEEE 802.11 b or 802.11g modes. Alternatively,
select 802.11g, 802.11b or 802.11a to have your AG-220 connect to other
wireless devices in b, g or a mode only.
Save Click Save to save the changes to the AG-220. If you are connected to a
wireless network when changing network modes, the AG-220 will disconnect
and then attempt to reestablish the connection using the new setting.
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Chapter 5 Access Point Mode Configuration 79
Figure 53 Access Point Mode: MAC Filter
The following table describes the labels in this screen.
Table 21 Access Point Mode: MAC Filter
LABEL DESCRIPTION
Filter Type Define the filter action for the list of MAC addresses in the MAC address filter table.
Select Disable to deactivate the MAC filter feature.
Select Reject to block access to the AG-220, MAC addresses not listed will be
allowed to access the AG-220.
Select Accept to permit access to the AG-220, MAC addresses not listed will be
denied access to the AG-220.
Filter MAC
Address 1-16
Specify the MAC address(es) of the wireless station(s) that is allowed or denied
association to the AG-220.
Enter six pairs of hexadecimal digits (separated by colons) in the range of “A-F”,
“a-f” and “0-9” (for example, 00:A0:C5:00:00:02).
If you enter an invalid MAC address, once you click Save to save the values, a
warning screen will be displayed.
Save Click Save to save the changes to the AG-220.
Cancel Click Cancel to discard the changes.
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80 Chapter 5 Access Point Mode Configuration
ZyXEL AG-220 User’s Guide
Chapter 6 Maintenance 81
C 6H A P T E R
Maintenance
This chapter describes how to uninstall or upgrade the ZyXEL utility.
6.1 The About Screen
The About screen displays driver and utility version numbers of the AG-220. To display the
screen as shown below, click the about ( ) button.
Figure 54 About
The following table describes the read-only fields in this screen.
6.2 Uninstalling the ZyXEL Utility
6.2.1 Windows XP
Follow the steps below to remove (or uninstall) the ZyXEL utility from your Windows XP
computer.
Table 22 About
LABEL DESCRIPTION
Driver Version This field displays the version number of the AG-220 driver.
Utility Version This field displays the version number of the ZyXEL utility.
ZyXEL AG-220 User’s Guide
82 Chapter 6 Maintenance
1 Click Start, (All) Programs, ZyXEL AG-220 Wireless USB Adapter Utility, Uninstall
ZyXEL AG-220 Wireless USB Adapter Utility.
2 When prompted, click OK or Yes to remove the driver and the utility software.
Figure 55 Uninstall: Confirm
3 Click Finish to complete uninstalling the software and restart the computer when
prompted.
Figure 56 Uninstall: Finish
6.2.2 Windows Vista
Follow the steps below to remove (or uninstall) the ZyXEL utility from your Windows Vista
computer.
1 Click the Start icon on the Windows Vista taskbar.
Figure 57 Uninstall: Start
2 In the menu that displays click Control Panel.
ZyXEL AG-220 User’s Guide
Chapter 6 Maintenance 83
Figure 58 Uninstall: Control Panel
3 On the Control Panel screen click Uninstall a program.
Figure 59 Uninstall: Control Panel
4 On the Uninstall Program screen double click ZyXEL AG-220 Wireless USB Adapter
Utility. You may need to scroll down to find this if you have many programs installed.
Figure 60 Uninstall: Control Panel
5 Windows Vista will ask for your permission to uninstall the program.
6 If you give Windows Vista your permission to uninstall the ZyXEL utility the following
screen will display. Click Ye s to uninstall the ZyXEL utility.
Figure 61 Uninstall: Remove Utility
7 After the program uninstalls the following screen will display. Select whether to restart
your computer now or later and click Finish.
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84 Chapter 6 Maintenance
Figure 62 Uninstall: Finish
6.3 Upgrading the ZyXEL Utility
Note: Before you uninstall the ZyXEL utility, take note of your current wireless
configurations.
To perform the upgrade, follow the steps below.
1 Download the latest version of the utility from the ZyXEL web site and save the file on
your computer.
2 Follow the steps in Section 6.2 on page 81 to remove the current ZyXEL utility from your
computer.
3 Restart your computer when prompted.
4 Disconnect the AG-220 from your computer.
5 Double-click on the setup program for the new utility to start the ZyXEL utility
installation.
6 Insert the AG-220 and check the version numbers in the About screen to make sure the
new utility is installed properly.
ZyXEL AG-220 User’s Guide
Chapter 7 Troubleshooting 85
C 7H A P T E R
Troubleshooting
This chapter covers potential problems and the possible remedies. After each problem
description, some instructions are provided to help you to diagnose and to solve the problem.
7.1 Problems Starting the ZyXEL Utility
7.2 Problem Connecting to an Access Point
Table 23 Troubleshooting Starting ZyXEL Utility
PROBLEM CORRECTIVE ACTION
Cannot start the
ZyXEL Wireless
LAN utility
Make sure the AG-220 is properly inserted and the LED is on. Refer to the Quick
Start Guide for the LED descriptions.
Use the Device Manager to check for possible hardware conflicts. Click Start,
Settings, Control Panel, System, Hardware and Device Manager. Verify the
status of the AG-220 under Network Adapter. (Steps may vary depending on the
version of Windows).
Install the AG-220 in another computer.
If the error persists, you may have a hardware problem. In this case, you should
contact your local vendor.
The ZyXEL utility
icon does not
display.
If you have installed the Funk Odyssey Client software on the computer, uninstall
(remove) both the Funk Odyssey Client software and ZyXEL utility, and then install
the ZyXEL utility again after restarting the computer.
Table 24 Troubleshooting Access Point Connection Problem
PROBLEM CORRECTIVE ACTION
When using the
Windows XP
configuration tool,
the AG-220 cannot
scan for or
connect to any
access points.
The AG-220 might still be operating in access point mode. This results when you
set the AG-220 to operate in access point mode using the ZyXEL utility, close the
ZyXEL utility and then use the Windows XP configuration tool.
Before you use the Windows XP configuration tool, make sure you set the AG-220
to operate in station mode before you close and exit the ZyXEL utility.
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86 Chapter 7 Troubleshooting
7.3 Problem with the Link Quality
7.4 Problems Communicating With Other Computers
Table 25 Troubleshooting Link Quality
PROBLEM CORRECTIVE ACTION
The link quality
and/or signal
strength is poor all
the time.
Search and connect to another AP with a better link quality using the Site Survey
screen.
Move your computer closer to the AP or the peer computer(s) within the
transmission range.
There may be too much radio interference (for example microwave or another AP
using the same channel) around your wireless network. Lower the output power of
each AP.
Make sure there are not too many wireless stations connected to a wireless
network.
Table 26 Troubleshooting Communication Problems
PROBLEM CORRECTIVE ACTION
In wireless station
mode, the
computer with the
AG-220 installed
cannot
communicate with
the other
computer(s).
In Infrastructure Mode
• Make sure that the AP and the associated computers are turned on and
working properly.
• Make sure the AG-220 computer and the associated AP use the same SSID.
• Change the AP and the associated wireless clients to use another radio
channel if interference is high.
• Make sure that the computer and the AP share the same security option and
key. Verify the settings in the Profile Security Setting screen.
• If you are using WPA(2) or WPA(2)-PSK security, try changing your encryption
type from TKIP to AES or vice versa.
In Ad-Hoc (IBSS) Mode
• Verify that the peer computer(s) is turned on.
• Make sure the AG-220 computer and the peer computer(s) are using the same
SSID and channel.
• Make sure that the computer and the peer computer(s) share the same
security settings.
• Change the wireless clients to use another radio channel if interference is high.
In access point
mode, the wireless
station(s) cannot
associate to the
AG-220.
Verify that the computer with the AG-220 installed is turned on.
Make sure the wireless station(s) uses the same SSID as the AG-220.
Make sure the wireless station(s) uses the same security settings.
Verify that the wireless station(s) is not blocked in the MAC Filter screen.
ZyXEL AG-220 User’s Guide
Appendix A 87
A AP P E N D I X
Product Specifications
Table 27 Product Specifications
PHYSICAL AND ENVIRONMENTAL
Product Name ZyXEL AG-220 802.11a/g Wireless USB Adapter
Interface USB 2.0 compatible
Standards IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
Network Architectures Infrastructure
Ad-Hoc
Operating Temperature 0 ~ 50 degrees Centigrade
Storage Temperature -30 ~ 60 degrees Centigrade
Operating Humidity 20 ~ 95% (non-condensing)
Storage Humidity 20 ~ 95% (non-condensing)
Power TX power consumption: < 380mA
RX power consumption: < 200mA
Voltage 5V
Weight 25.8 g
Dimension (W) 95 mm × (D) 30 mm × (H) 16 mm
RADIO SPECIFICATIONS
Media Access Protocol IEEE 802.11
Frequency Industrial Scientific Medical Band
2.412 ~ 2.484 GHz (IEEE 802.11b/g) and 5.180 ~ 5.825GHz (IEEE
802.11a)
ZyXEL AG-220 User’s Guide
88 Appendix A
Operating Frequencies and
Channels
IEEE 802.11b/g:
2.412 ~ 2.484 GHz
FCC: 11 channels
Taiwan: 11 channels
CE: 13 channels
IEEE 802.11a 5.180 ~ 5.825 GHz:
5.180 ~ 5.240 GHz
FCC: 4 channels
CE: 4 channels
5.260 ~ 5.320 GHz
FCC: 4 channels
Taiwan: 4 channels
CE: 4 channels
5.500 ~ 5.700 GHz
CE: 11 channels
5.745 ~ 5.825 GHz
FCC: 5 channels
Taiwan: 5 channels
Data Rate 11g: 54 Mbps with automatic fallback to 48, 36, 24, 18, 12, 9 and 6
Mbps
11b: 11 Mbps with automatic fallback to 11, 5.5, 2 and 1 Mbps
Modulation IEEE 802.11a: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (OFDM)
IEEE 802.11b: 11, 5.5 Mbps (CCK), 2 Mbps (DQPSK), 1 Mbps
(DBPSK)
IEEE 802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (OFDM)
Average Output Power IEEE 802.11a: 12dBm (+/- 2dBm) at 54Mbps, OFDM
IEEE 802.11b: 17dBm (+/- 2dBm) at 11Mbps, CCK, QPSK, BPSPK
IEEE 802.11g: 14dBm (+/- 2dBm) at 54Mbps, OFDM
RX Sensitivity IEEE 802.11g (OFDM): 54 Mbps: < -70 dBm
IEEE 802.11b (CCK): 11 Mbps: < -85 dBm
SOFTWARE SPECIFICATIONS
Device Drivers Microsoft Windows 98 Second Edition, Windows ME, Windows 2000,
Windows XP, Windows XP 64-bit edition, Windows Vista
Security 64/128/256-bit WEP
WPA/WPA-PSK/WPA2/WPA2-PSK
IEEE 802.1x
WPS (Windows Vista only)
Roaming IEEE 802.11a/b/g compliant
Table 27 Product Specifications (continued)
ZyXEL AG-220 User’s Guide
Appendix B 89
A BP P E N D I X
Access Point Mode Setup Example
This example uses the network sharing feature in Windows 2000 to bridge the wired and
wireless network when you set the AG-220 in access point (AP) mode.
Refer to Chapter 5 on page 73 for setup methods and requirements.
Steps may vary depending on your Windows version. You may need to install additional
software in Windows 98 Second Edition and Windows ME.
Configuring the Computer on Which You Install the AG-220
1 Refer to Section 1.2.3 on page 25 to set the AG-220 to operate in AP mode.
2 Click Start, Settings, Network and Dial-up Connections (or click Start, Settings,
Control Panel and double-click Network and Dial-up Connections).
Figure 63 Windows 2000: Start
3 Right-click on the icon for your wired Ethernet adapter and click Properties.
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90 Appendix B
Figure 64 Windows 2000: Network and Dial-up Connections
4 A Properties screen displays. Click the Sharing tab and select Enable Internet
Connection Sharing for this connection. Click OK.
Figure 65 Windows 2000: Network Properties
If there is more than one network adapter on the computer, select Enable Internet
Connection Sharing for this connection and select the network adapter to which you
want to share network access.
ZyXEL AG-220 User’s Guide
Appendix B 91
Figure 66 WIndows 2000: Network Properties: Select Network Adapter
5 A notice screen displays. Click Yes.
Figure 67 Windows 2000: Local Network
Configuring the Wireless Station Computer
Refer to Appendix E on page 121 for information on how to set up the IP address of a
computer you want to connect wirelessly to the AG-220.
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92 Appendix B
ZyXEL AG-220 User’s Guide
Appendix C 93
A CP P E N D I X
Windows Wireless Management
This appendix shows you how to manage your AG-220 using the Windows Vista and
Windows XP wireless configuration tools.
Windows Vista
Take the following steps to connect to a wireless network using the Windows Vista wireless
configuration tool (WLAN AutoConfig).
Connecting to a Wireless Network
1 In the Windows Vista taskbar, click Start ( ) > Connect To.
Figure 68 Vista: Start Menu
The Connect To window displays, showing all available networks.
ZyXEL AG-220 User’s Guide
Appendix C 95
Figure 71 Vista: Enter Security Key
Your computer tries to connect to the wireless network.
Figure 72 Vista: Connecting
If your computer has connected to the wireless network successfully, the following
screen displays.
ZyXEL AG-220 User’s Guide
96 Appendix C
Figure 73 Vista: Successful Connection
4 If you will use this network again, ensure that Save this network is selected. If you save
the network, you do not have to configure its settings again.
5 Select Start this connection automatically if you want Windows to always try to use
this network when you start up your computer. If you do not select this (but select Save
this network) you can connect manually each time by clicking Start > Connect to and
selecting the network’s name from the list.
Connecting to a Network Manually
If the wireless network to which you want to connect does not appear in the Connect to
window (if your network’s SSID is hidden, for example), take the following steps to configure
your network connection manually
1 Click Set up a connection or network at the bottom of the Connect to screen. The
following screen displays.
ZyXEL AG-220 User’s Guide
Appendix C 97
Figure 74 Vista: Choose a Connection Option
2 Click Manually connect to a wireless network. The following screen displays.
Figure 75 Vista: Connect Manually
The following table describes the labels in this screen.
Table 28 Vista: Connect Manually
LABEL DESCRIPTION
Network name Enter your network’s SSID (Service Set IDentifier).
Security type Select the type of security used by the network to which you want to
connect. The types of available security shown depend on your computer’s
wireless client.
In this field, WPA(2)-Personal is the same as WPA(2)-PSK, and WPA(2)-
Enterprise is the same as WPA(2)
ZyXEL AG-220 User’s Guide
98 Appendix C
3 When you have finished filling in the fields, click Next. the following screen displays.
Figure 76 Vista: Successfully Added Network
4 If you want to make any changes to the settings you just configured, click Change
connection settings. Otherwise, click Connect to.... In the window that displays,
double-click the new network’s name to connect to the network.
Setting Up An Ad-Hoc Network
Take the following steps to set up a wireless connection between two computers in Windows
Vista.
Encryption type Select the type of encryption used by the network.
When you use WEP or 802.1x, WEP displays.
When you use a WPA mode (WPA(2)-Personal or WPA(2)-Enterprise)
you can choose AES or TKIP (if supported by your computer’s wireless
client).
Security Key /
Passphrase
If your network uses WEP or WPA(2)-Personal security, enter the key
here.
Display Characters Select this if you do not want the security key characters to be hidden.
Start this connection
automatically
Select this box if you always want to try to connect to this network at
startup. If you leave this box unchecked, you will need to connect manually
each time.
Connect even if the
network is not
broadcasting
Select this box if you always want to try to connect to this network at
startup, even if the network is not broadcasting its SSID. The warning in
this field refers to the fact that if you do this, your computer sends out probe
request packets, which contain the network’s SSID and could be used by
an attacker to access the network.
Next Click this to save your settings and move on to the next page.
Cancel Click this to stop setting up your network.
Table 28 Vista: Connect Manually
LABEL DESCRIPTION
ZyXEL AG-220 User’s Guide
Appendix C 99
1 Click Start ( ) > Connect To Connect to. In the screen, click Set up a connection
or network. The following screen displays.
Figure 77 Vista: Set Up An Ad-hoc Network
2 Select Set up a wireless ad hoc (computer-to-computer) network and click Next. The
following screen displays.
Figure 78 Vista: Ad-hoc Options
3 Enter the Network name (SSID) you want to use for your network. Select a Security
type. If you are not sure what kind of security you want to use, click the Help me choose
link.
? Make sure all the wireless clients on your ad-hoc network can support the type
of security you select.
ZyXEL AG-220 User’s Guide
Appendix C 101
Figure 80 Windows XP SP1: Wireless Network Connection Status
Figure 81 Windows XP SP2: Wireless Network Connection Status
4 The Wireless Network Connection Properties screen displays. Click the Wireless
Networks tab.
Make sure the Use Windows to configure my wireless network settings check box is
selected.
ZyXEL AG-220 User’s Guide
102 Appendix C
Figure 82 Windows XP SP1: Wireless Network Connection Properties
Figure 83 Windows XP SP2: Wireless Network Connection Properties
If you see the following screen, refer to article 871122 on the Microsoft web site for
information on starting WZC.
ZyXEL AG-220 User’s Guide
104 Appendix C
Figure 86 Windows XP SP2: Wireless Network Connection Status
Windows XP SP1: In the Wireless Network Connection Status screen, click
Properties and the Wireless Networks tab to open the Wireless Network Connection
Properties screen.
Figure 87 Windows XP SP1: Wireless Network Connection Status
3 Windows XP SP2: Click Refresh network list to reload and search for available
wireless devices within transmission range. Select a wireless network in the list and click
Connect to join the selected wireless network.
ZyXEL AG-220 User’s Guide
Appendix C 105
Figure 88 Windows XP SP2: Wireless Network Connection
The following table describes the icons in the wireless network list.
Windows XP SP1: Click Refresh to reload and search for available wireless devices
within transmission range. Select a wireless network in the Available networks list,
click Configure and set the related fields to the same security settings as the associated
AP to add the selected network into the Preferred networks table. Click OK to join the
selected wireless network. Refer to the section on security settings (discussed later) for
more information.
Table 30 Windows XP SP2: Wireless Network Connection
ICON DESCRIPTION
This denotes that wireless security is activated for the wireless network.
This denotes that this wireless network is your preferred network. Ordering your
preferred networks is important because the AG-220 tries to associate to the preferred
network first in the order that you specify. Refer to the section on ordering the preferred
networks for detailed information.
This denotes the signal strength of the wireless network.
Move your cursor to the icon to see details on the signal strength.
ZyXEL AG-220 User’s Guide
106 Appendix C
Figure 89 Windows XP SP1: Wireless Network Connection Properties
4 4.Windows XP SP2: If the wireless security is activated for the selected wireless
network, the Wireless Network Connection screen displays. You must set the related
fields in the Wireless Network Connection screen to the same security settings as the
associated AP and click Connect. Refer to the section about security settings for more
information. Otherwise click Cancel and connect to another wireless network without
data encryption. If there is no security activated for the selected wireless network, a
warning screen appears. Click Connect Anyway if wireless security is not your concern.
Figure 90 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK
ZyXEL AG-220 User’s Guide
Appendix C 107
Figure 91 Windows XP SP2: Wireless Network Connection: No Security
5 Verify that you have successfully connected to the selected network and check the
connection status in the wireless network list or the connection icon in the Preferred
networks or Available networks list.
The following table describes the connection icons.
Security Settings
When you configure the AG-220 k but the security settings are to connect to a secure networ
not yet enabled on the AG-220, you will see different screens according to the authentication
and encryption methods used by the selected network.
Association
Select a network in the Preferred networks list and click Properties to view or configure
security.
Figure 92 Windows XP: Wireless (network) properties: Association
Table 31 Windows XP: Wireless Networks
ICON DESCRIPTION
This denotes the wireless network is an available wireless network.
This denotes the AG-220 is associated to the wireless network.
This denotes the wireless network is not available.
ZyXEL AG-220 User’s Guide
108 Appendix C
The following table describes the labels in this screen.
Authentication
Click the Authentication tab in the Wireless (network) properties screen to display the
screen shown next. The fields on this screen are grayed out when the network is in Ad-Hoc
mode or data encryption is disabled.
Table 32 Windows XP: Wireless (network) properties: Association
LABEL DESCRIPTION
Network name
(SSID)
This field displays the SSID (Service Set IDentifier) of each wireless network.
Network
Authentication
This field automatically shows the authentication method (Share, Open, WPA or
WPA-PSK) used by the selected network.
Data Encryption This field automatically shows the encryption type (TKIP, WEP or Disable) used
by the selected network.
Network Key Enter the pre-shared key or WEP key.
The values for the keys must be set up exactly the same on all wireless devices in
the same wireless LAN.
Confirm network
key
Enter the key again for confirmation.
Key index
(advanced)
Select a default WEP key to use for data encryption.
This field is available only when the network use WEP encryption method and the
The key is provided for me automatically check box is not selected.
The key is
provided for me
automatically
If this check box is selected, the wireless AP assigns the AG-220 a key.
This is a
computer-to-
computer (ad hoc)
network; wireless
access points are
not used
If this check box is selected, you are connecting to another computer directly.
OK Click OK to save your changes.
Cancel Click Cancel to leave this screen without saving any changes you may have
made.
ZyXEL AG-220 User’s Guide
110 Appendix C
Protected EAP Properties
Figure 94 Windows XP: Protected EAP Properties
The following table describes the labels in this screen.
Table 34 Windows XP: Protected EAP Properties
LABEL DESCRIPTION
Validate server
certificate
Select the check box to verify the certificate of the authentication server.
Connect to these
servers
Select the check box and specify a domain in the field below to have your
computer connect to a server which resides only within this domain.
Trusted Root
Certification
Authorities:
Select a trusted certification authority from the list below.
Note: You must first have a wired connection to a network and
obtain the certificate(s) from a certificate authority (CA).
Consult your network administrator for more information.
Do not prompt
user to authorize
new server or
trusted
certification
authorities.
Select this check box to verify a new authentication server or trusted CA without
prompting.
This field is available only if you installed the Windows XP server pack 2.
Select
Authentication
Method:
Select an authentication method from the drop-down list box and click Configure
to do settings.
Enable Fast
Reconnect
Select the check box to automatically reconnect to the network (without re-
authentication) if the wireless connection goes down.
OK Click OK to save your changes.
Cancel Click Cancel to leave this screen without saving any changes you may have
made.
ZyXEL AG-220 User’s Guide
Appendix C 111
Smart Card or other Certificate Properties
Figure 95 Windows XP: Smart Card or other Certificate Properties
The following table describes the labels in this screen.
Ordering the Preferred Networks
Follow the steps below to manage your preferred networks.
Table 35 Windows XP: Smart Card or other Certificate Properties
LABEL DESCRIPTION
Use my smart
card
Select this check box to use the smart card for authentication.
Use a certificate
on this computer
Select this check box to use a certificate on your computer for authentication.
Validate server
certificate
Select the check box to check the certificate of the authentication server.
Connect to these
servers
Select the check box and specify a domain in the field below to have your
computer connect to a server which resides only within this domain.
Trusted Root
Certification
Authorities:
Select a trusted certification authority from the list below.
Note: You must first have a wired connection to a network and
obtain the certificate(s) from a certificate authority (CA).
Consult your network administrator for more information.
View Certificate Click this button if you want to verify the selected certificate.
Use a different
user name for the
connection:
Select the check box to use a different user name when the user name in the
smart card or certificate is not the same as the user name in the domain that you
are logged on to.
OK Click OK to save your changes.
Cancel Click Cancel to leave this screen without saving any changes you may have
made.

Produkt Specifikationer

Mærke: ZyXEL
Kategori: Netværkskort/adapter
Model: AG-220
Vægt: 25.8 g
Produktfarve: Sølv
Opbevaringstemperatur (T-T): -30 - 60 °C
Relativ luftfugtighed ved drift (H-H): 20 - 95 %
Relativ luftfugtighed ved opbevaring (H-H): 20 - 95 %
Driftstemperatur (T-T): 0 - 50 °C
Dimensioner (BxDxH): 81 x 27 x 13 mm
Frekvensområde: 2.4 - 5.825 GHz
Forbindelsesteknologi: Trådløs
Wi-Fi-bånd: Dual-band (2,4 GHz / 5 GHz)
Kompatible operativsystemer: Windows XP/2000/ME/Vista
Værtsgrænseflade: USB
Grænseflade: USB
Intern: Ingen
Maksimal dataoverførselshastighed: 54 Mbit/s
Modulation: CCK, DBPSK, DQPSK, OFDM
Antenne type: Int. patch
Komponent til: PC/notebook
Overholdelse af branchestandarder: IEEE 802.11a/b/g
Understøttede dataoverførselshastigheder: 54M/48M/36M/24M/18M/12M/11M/9M/6M/5.5M/2M/1Mbps
TX strømforbrug: 380 mA
RX strømforbrug: 200 mA

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