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ZyXEL AG-220
802.11a/g Wireless USB Adapter
User’s Guide
Version 1.10
Edition 1
5/2008
Copyright
ZyXEL AG-220 User’s Guide
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.
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ZyXEL AG-220 User’s Guide
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:
1 Reorient or relocate the receiving antenna.
2 Increase the separation between the equipment and the receiver.
3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4 Consult 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.
Certifications
ZyXEL AG-220 User’s Guide
• 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 !
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
1 Go to http://www.zyxel.com
.
2 Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.
3 Select the certification you wish to view from this page.
Certifications 5
ZyXEL AG-220 User’s Guide
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.
6 Safety Warnings
ZyXEL AG-220 User’s Guide
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 new or re-manufactured functionally equivalent 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 Limited Warranty 7
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ZyXEL AG-220 User’s Guide
Customer Support
Please have the following information ready when you contact customer support.
• Product model and serial number.
• Warranty Information.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.
LOCATION
METHOD SUPPORT E-MAIL TELEPHONE
SALES E-MAIL FAX [email protected] +886-3-578-3942
CORPORATE
HEADQUARTERS
(WORLDWIDE) [email protected]
+886-3-578-2439
COSTA RICA [email protected]
+506-2017878
+506-2015098
CZECH REPUBLIC [email protected]
+420-241-091-350
+420-241-091-359
DENMARK
FINLAND
FRANCE
GERMANY
HUNGARY
KAZAKHSTAN [email protected] +45-39-55-07-00 [email protected] +45-39-55-07-07 [email protected]
+358-9-4780-8411
+358-9-4780 8448 [email protected] +33-4-72-52-97-97
+33-4-72-52-19-20 [email protected]
+49-2405-6909-0
+49-2405-6909-99
+36-1-3361649
+36-1-3259100 http://zyxel.kz/support +7-3272-590-698 [email protected]
+7-3272-590-689 [email protected]
NORTH AMERICA [email protected]
1-800-255-4101
+1-714-632-0882
+1-714-632-0858
WEB SITE
REGULAR MAIL
FTP SITE www.zyxel.com
www.europe.zyxel.com
ftp.zyxel.com
ftp.europe.zyxel.com
ZyXEL Communications Corp.
6 Innovation Road II
Science Park
Hsinchu 300
Taiwan www.zyxel.co.cr
ftp.zyxel.co.cr
www.zyxel.cz
ZyXEL Costa Rica
Plaza Roble Escazú
Etapa El Patio, Tercer Piso
San José, Costa Rica
ZyXEL Communications
Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika
Communications A/S
Columbusvej
2860 Soeborg
Denmark www.zyxel.fi ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland
France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France www.zyxel.de
ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany www.zyxel.hu
www.zyxel.kz
ZyXEL Hungary
48, Zoldlomb Str.
H-1025, Budapest
Hungary
ZyXEL Kazakhstan
43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan www.us.zyxel.com
ftp.us.zyxel.com
ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
Customer Support
ZyXEL AG-220 User’s Guide
LOCATION
NORWAY
POLAND
RUSSIA
SPAIN
SWEDEN
UKRAINE
METHOD SUPPORT E-MAIL
UNITED KINGDOM
TELEPHONE WEB SITE
REGULAR MAIL
SALES E-MAIL FAX FTP SITE [email protected] +47-22-80-61-80 [email protected] +47-22-80-61-81 [email protected]
http://zyxel.ru/support [email protected]
+48 (22) 333 8250
+48 (22) 333 8251
+7-095-542-89-29
+7-095-542-89-25 www.zyxel.no www.pl.zyxel.com
www.zyxel.ru
ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
ZyXEL Communications ul. Okrzei 1A
03-715 Warszawa
Poland
ZyXEL Russia
Ostrovityanova 37a Str.
Moscow, 117279
Russia [email protected]
+34-902-195-420 [email protected] +34-913-005-345 [email protected] +46-31-744-7700 [email protected] +46-31-744-7701 [email protected] +380-44-247-69-78 [email protected]
+380-44-494-49-32
+44-1344 303044
08707 555779 (UK only)
+44-1344 303034 www.zyxel.es ZyXEL Communications
Arte, 21 5ª planta
28033 Madrid
Spain www.zyxel.se
ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden www.ua.zyxel.com
www.zyxel.co.uk
ftp.zyxel.co.uk
ZyXEL Ukraine
13, Pimonenko Str.
Kiev, 04050
Ukraine
ZyXEL Communications UK
Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)
+” is the (prefix) number you enter to make an international telephone call.
Customer Support 9
ZyXEL AG-220 User’s Guide
10 Customer Support
ZyXEL AG-220 User’s Guide
Table of Contents
Table of Contents 11
ZyXEL AG-220 User’s Guide
3.2.3 User Authentication and Encryption .........................................................39
3.3.3.1 Example WPS Network Setup ........................................................44
4.1.1 ZyXEL Utility Screen Summary ...............................................................51
4.3.1.2 WPA-PSK/WPA2-PSK .....................................................................56
12 Table of Contents
ZyXEL AG-220 User’s Guide
5.1.1 ZyXEL Utility Screen Summary ...............................................................73
7.4 Problems Communicating With Other Computers .............................................86
Table of Contents 13
ZyXEL AG-220 User’s Guide
14 Table of Contents
ZyXEL AG-220 User’s Guide
List of Figures
List of Figures
Figure 21 Example WPS Process: PIN Method ..................................................... 43
Figure 26 ZyXEL Utility Menu Summary: Station Mode ........................................ 51
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 36 Station Mode: Profile: Add a New Profile .............................................. 62
Figure 37 Station Mode: Profile: Select a Channel ............................................... 63
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ZyXEL AG-220 User’s Guide
Figure 40 Station Mode: Profile: Confirm New Settings ........................................ 65
Figure 44 Station Mode: Adapter (Windows Vista) ................................................ 68
Figure 45 Vista Security: Additional Information Required ..................................... 70
Figure 47 Vista Security: Additional Information Required ..................................... 71
Figure 49 ZyXEL Utility Menu Summary: AP Mode .............................................. 73
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 80 Windows XP SP1: Wireless Network Connection Status ....................... 101
Figure 81 Windows XP SP2: Wireless Network Connection Status ....................... 101
16 List of Figures
List of Figures
ZyXEL AG-220 User’s Guide
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 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 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 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
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ZyXEL AG-220 User’s Guide
18 List of Figures
List of Tables
ZyXEL AG-220 User’s Guide
List of Tables
Table 2 ZyXEL Utility Menu Summary: Station Mode ............................................ 51
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 16 Station Mode: Adapter (Windows Vista) ................................................. 69
Table 17 ZyXEL Utility Menu Summary: AP Mode ................................................ 73
Table 24 Troubleshooting Access Point Connection Problem ............................... 85
Table 26 Troubleshooting Communication Problems ............................................ 86
Table 29 Windows XP SP2: System Tray Icon ...................................................... 103
Table 30 Windows XP SP2: Wireless Network Connection .................................. 105
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
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ZyXEL AG-220 User’s Guide
20 List of Tables
Preface
ZyXEL AG-220 User’s Guide
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 [email protected] 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.
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ZyXEL AG-220 User’s Guide
Graphics Icons Key
Wireless Access Point Computer Notebook Computer
Server
Internet Cloud
Modem or Router Wireless Signal
22 Preface
ZyXEL AG-220 User’s Guide
C H A P T E R 1
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
and
for more information.
At the time of writing the following functions are not available on Windows Vista:
• AP Mode (
• 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
• Ad-hoc channel and wireless mode settings (
•
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).
Chapter 1 Getting Started 23
ZyXEL AG-220 User’s Guide
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.
24 Chapter 1 Getting Started
Figure 2 Application: Ad-Hoc
ZyXEL AG-220 User’s Guide
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 and C 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.
Chapter 1 Getting Started 25
ZyXEL AG-220 User’s Guide
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
26 Chapter 1 Getting Started
ZyXEL AG-220 User’s Guide
The color of the ZyXEL utility system tray icon indicates the status of the AG-220. Refer to the following table for details.
Table 1 ZyXEL Utility: System Tray Icon
COLOR
Red
Green
Pale Blue
DESCRIPTION
The AG-220 is operating in wireless station mode but is not connected to a wireless network.
The AG-220 is operating in wireless station mode and is connected to a wireless network.
The AG-220 is operating in access point mode.
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.
Chapter 1 Getting Started 27
ZyXEL AG-220 User’s Guide
Note: Click the icon (located in the top right corner) to display the online help window.
28 Chapter 1 Getting Started
ZyXEL AG-220 User’s Guide
C H A P T E R 2
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
• Configure a profile to have the wireless client automatically connect to a specific network or peer computer (see
).
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.
1 Open the ZyXEL utility and click the Site Survey tab to open the screen shown next.
Chapter 2 Tutorial 29
ZyXEL AG-220 User’s Guide
Figure 8 ZyXEL Utility: Site Survey
2 The 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
for detailed field descriptions.
3 To 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).
4 When 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 Exit button to return to the Site Survey screen.
Figure 9 ZyXEL Utility: Security Settings
30
5 The Confirm Save window appears. Check your settings and click Save to continue.
Chapter 2 Tutorial
Figure 10 ZyXEL Utility: Confirm Save
ZyXEL AG-220 User’s Guide
6 The 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
for detailed field descriptions.
Figure 11 ZyXEL Utility: Link Info
7 Open 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.
Chapter 2 Tutorial 31
ZyXEL AG-220 User’s Guide
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”.
1 Open 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
2 The 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
32
3 Give 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.
4 Choose the same encryption method as the AP to which you want to connect (In this example, WPA-PSK).
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Figure 14 ZyXEL Utility: Profile Security
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5 This 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
6 Verify the profile settings in the ready-only screen. Click Save to save and go to the next screen.
Figure 16 ZyXEL Utility: Profile Confirm Save
7 Click 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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Note: Only one profile can be activated and used at any given time.
Figure 17 ZyXEL Utility: Profile Activate
8 When 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.
9 Make 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
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.
1 Select 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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Figure 18 ZyXEL Utility: AP: Link Info
ZyXEL AG-220 User’s Guide
2 If 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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C H A P T E R 3
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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• 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 LAN security using the Configuration or the 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, you should change the default SSID to something that is difficult to 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
for more details. You can also use the
Association List in the Link Info screen (in AP mode) to get the MAC addresses of other wireless devices connected to the AG-220.
38
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.
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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 feature, you can still take advantage of this 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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• 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.
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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.
1 Ensure that the two devices you want to set up are within wireless range of one another.
2 Look 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 ).
3 Press the button on one of the devices (it doesn’t matter which).
4 Within 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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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.
1 Ensure WPS is enabled on both devices.
2 Access the WPS section of the AP’s configuration interface. See the device’s User’s
Guide for how to do this.
3 Look 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
4 Enter 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.
5 Start WPS on both devices within two minutes.
Note: Use the configuration utility to activate WPS, not the push-button on the device itself.
6 On 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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Figure 21 Example WPS Process: PIN Method
ENROLLEE
WPS
This device’s
WPS PIN: 123456
WPS
Enter WPS PIN from other device:
ZyXEL AG-220 User’s Guide
REGISTRAR
START
WPS
START
WPS
WITHIN 2 MINUTES
SECURE EAP TUNNEL
SSID
WPA(2)-PSK
COMMUNICATION
3.3.3 How WPS Works
When two WPS-enabled devices connect, each device must assume a specific role. One device acts as the registrar (the device that supplies network and security settings) and the other device acts as the enrollee (the device that receives network and security settings. The registrar creates a secure EAP (Extensible Authentication Protocol) tunnel and sends the network name
(SSID) and the WPA-PSK or WPA2-PSK pre-shared key to the enrollee. Whether WPA-PSK or WPA2-PSK is used depends on the standards supported by the devices. If the registrar is already part of a network, it sends the existing information. If not, it generates the SSID and
WPA(2)-PSK randomly.
The following figure shows a WPS-enabled client (installed in a notebook computer) connecting to a WPS-enabled access point.
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Figure 22 How WPS works
ACTIVATE
WPS
WITHIN 2 MINUTES
ACTIVATE
WPS
WPS HANDSHAKE
ENROLLEE REGISTRAR
SECURE TUNNEL
SECURITY INFO
COMMUNICATION
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 Client 1 is the enrollee. The registrar randomly generates the security information to set up the network, since it is unconfigured and has no existing information.
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Figure 23 WPS: Example Network Step 1
ENROLLEE REGISTRAR
SECURITY INFO
CLIENT 1 AP1
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
REGISTRAR
EXISTING CONNECTION
CLIENT 1 AP1
ENROLLEE
SE
CU
RIT
Y IN
FO
CLIENT 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.
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Figure 25 WPS: Example Network Step 3
EXISTING CONNECTION
CLIENT 1
EX
IST
ING
CO
NN
EC
TIO
N
REGISTRAR
AP1
CLIENT 2
ENROLLEE
SEC
URIT
Y IN
FO
AP1
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.
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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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1 In the AP, a web configurator screen pops up showing you the security settings to transfer. After reviewing the settings, click
OK.
2 This 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.
3.4.3 Notes on OTIST
1 If 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.
2 If 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.)
3 When 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.
4 If 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).
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5 If 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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C H A P T E R 4
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
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
Station Mode
Link Info
DESCRIPTION
Site Survey
Profile
Advanced
Adapter
Use this screen to see your current connection status, configuration and data rate statistics.
Use this screen to
• scan for a wireless network
• configure wireless security (if activated on the selected network).
• connect to a wireless network.
Use this screen to add, delete, edit or activate a profile with a set of wireless and security settings.
Use this screen to change the wireless network mode.
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
52
The following table describes the labels in this screen.
Table 3 Station Mode: Link Info
LABEL DESCRIPTION
AP Mode
Station Mode
Wireless Network
Status
Profile Name
Network Name
(SSID)
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.
This is the name of the profile you are currently using.
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).
This field displays the radio channel the AG-220 is currently using.
Channel
Statistics
Transmit Rate
Receive Rate
This field displays the current data transmission rate in kilobits per second (Kbps).
This field displays the current data receiving rate in kilobits per second (Kbps).
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Table 3 Station Mode: Link Info (continued)
LABEL
Authentication
Network Mode
Total Transmit
Total Receive
Link Quality
Trend Chart
Signal Strength
Link Quality
DESCRIPTION
This field displays the authentication method of the AG-220.
This field displays the wireless standard (A, B or G) of the AP or peer computer.
This field displays the total number of data frames transmitted.
This field displays the total number of data frames received.
This field displays the signal strength of the AG-220.
Click this button to display the real-time statistics of the data rate in kilobits per second (Kbps).
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.
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.
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.
Table 4 Station Mode: Link Info: Trend Chart
LABEL
Transmit
Receive
DESCRIPTION
This field displays the current data transmission rate in kilobits per second (Kbps).
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
54
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.
,
SSID
,
or
Channel
Signal
Scan
Connect
Site Information
Network Type
Channel
Encryption 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.
This field displays the SSID (Service Set IDentifier) of each wireless device.
This field displays the channel number used by each wireless device.
This field displays the signal strength of each wireless device.
Click Scan to search for available wireless devices within transmission range.
Click Connect to associate to the selected wireless device.
Click an entry in the Available Network List table to display the information of the selected wireless device.
This field displays the network type (Infrastructure or Ad Hoc) of the wireless device.
This field displays the channel number used by each wireless device.
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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Table 5 Station Mode: Site Survey (continued)
LABEL
MAC address
Surveyed at
DESCRIPTION
This field displays the MAC address of the wireless device.
This field displays the time when the wireless device was scanned.
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.
Table 6 Station Mode: Security Setting: WEP
DESCRIPTION LABEL
Security Settings
WEP
Encryption Type
Pass Phrase
Transmit Key
Select 64 Bits, 128 Bits or 256 Bits to activate WEP encryption and then fill in the related fields.
Select an authentication method. Choices are SHARED and OPEN.
Refer to
for more information.
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.
Select a default WEP key to use for data encryption. The key displays in the field below.
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Table 6 Station Mode: Security Setting: WEP (continued)
LABEL DESCRIPTION
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.
Back
Next
Exit
ASCII WEP keys are case sensitive.
Click Back to go to the Site Survey screen to select and connect to another network.
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to
.
Click Exit to return to the Site Survey screen without saving.
4.3.1.2 WPA-PSK/WPA2-PSK
Figure 31 Station Mode: Security Setting: WPA-PSK/WPA2-PSK
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The following table describes the labels in this screen.
Table 7 Station Mode: Security Setting: WPA-PSK/WPA2-PSK
LABEL DESCRIPTION
Encryption Type The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses a simple common password, instead of user-specific credentials.
Select the encryption type (TKIP or AES) for data encryption.
Refer to
Section 3.2.3.3 on page 40 for more information.
Pre-Shared Key Type a pre-shared key (same as the AP or peer device) of between 8 and 63 casesensitive ASCII characters (including spaces and symbols) or 64 hexadecimal characters.
Back
Next
Exit
Click Back to go to the Site Survey screen to select and connect to another network.
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to
.
Click Exit to return to the Site Survey screen without saving.
4.3.1.3 WPA/WPA2
Note: At the time of writing Login Name and Password are not available on
Windows Vista.
Figure 32 Station Mode: Security Settings: WPA/WPA2
The following table describes the labels in this screen.
Table 8 Station Mode: Security Setting: WPA/WPA2
LABEL DESCRIPTION
Encryption Type The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses a simple common password, instead of user-specific credentials.
Select the encryption type (TKIP or AES) for data encryption.
Refer to
Section 3.2.3.3 on page 40 for more information.
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.
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Table 8 Station Mode: Security Setting: WPA/WPA2
LABEL DESCRIPTION
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
Certificate
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.
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
Next
Exit
Click Back to go to the Site Survey screen to select and connect to another network.
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to
.
Click Exit to return to the Site Survey screen without saving.
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
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The following table describes the labels in this screen.
Table 9 Station Mode: Security Settings: IEEE 802.1x
LABEL DESCRIPTION
Authentication
Type
Login Name
Password
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.
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.
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
Next
Exit
Click Back to go to the Site Survey screen to select and connect to another network.
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to
.
Click Exit to return to the Site Survey screen without saving.
4.3.2 Confirm Save Screen
Use this screen to confirm and save the security settings.
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Figure 34 Confirm Save Screen
The following table describes the labels in this screen.
Table 10 Confirm Save Screen
DESCRIPTION LABEL
Security Setting
Network Name
Network Type
Channel
Security
Back
Save
Exit
This field displays the SSID previously entered.
This field displays the network type (Infrastructure or Ad-Hoc) of the wireless device.
This field displays the channel number used by the profile.
This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA,
WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).
Click Back to return to the previous screen.
Click Save to save the changes back to the AG-220 and display the Link Info screen.
Click Exit to discard changes and return to the Site Survey 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.
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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
Profile List
,
,
or
Profile Name
SSID
Connect
Add
Delete
Edit
Profile Info
Network Type
DESCRIPTION
Click a column heading to sort the entries.
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.
This is the name of the pre-configured profile.
This is the SSID of the wireless network to which the selected profile associate.
To use and activate a previously saved network profile, select a pre-configured profile name in the table and click Connect.
To add a new profile into the table, click Add.
To delete an existing wireless network configuration, select a profile in the table and click Delete.
To edit an existing wireless network configuration, select a profile in the table and click Edit.
The following fields display detailed information of the selected profile in the
Profile List table.
This field displays the network type (Infrastructure or Ad-Hoc) of the profile.
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Table 11 Station Mode: Profile (continued)
LABEL
SSID
Channel
Security
Transfer Rate
DESCRIPTION
This field displays the SSID (Service Set IDentifier) of the profile.
This field displays the channel number used by the profile.
This field shows whether data encryption is activated (WEP (WEP or 802.1x),
WPA, WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).
This field displays the transmission speed of the selected profile in megabits per second (Mbps).
4.4.1 Adding a New Profile
Follow the steps below to add a new profile.
1 Click 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
62
The following table describes the labels in this screen.
Table 12 Station Mode: Profile: Add a New Profile
DESCRIPTION LABEL
Add New Profile
Profile Name
SSID
Network Type
Next
Exit
Enter a descriptive name in this field.
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.
Select Infrastructure to associate to an AP. Select Ad-Hoc to associate to a peer computer.
Click Next to go to the next screen.
Click Exit to go back to the previous screen without saving.
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Table 12 Station Mode: Profile: Add a New Profile (continued)
LABEL
Scan Info
SSID
Scan
Select
,
,
or
DESCRIPTION
This table displays the information of the available wireless networks within the transmission range.
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.
This field displays the SSID (Service Set IDentifier) of each AP or peer device.
Click Scan to search for available wireless devices within transmission range.
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.
2 If you select the Infrastructure network type in the previous screen, skip to step 3 . If you select the Ad-Hoc network type in the previous screen, a screen displays as follows.
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
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The following table describes the labels in this screen.
Table 13 Station Mode: Profile: Select a Channel
LABEL
Wireless Settings
Channel
DESCRIPTION
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.
3 If 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
4 The 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.
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Figure 39 Station Mode: Profile: Security Settings
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5 This 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 Back to return to the previous screen. Otherwise, click Exit to go back to the Profile screen without saving.
Figure 40 Station Mode: Profile: Confirm New Settings
6 To 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
66
The following table describes the labels in this screen.
Table 14 Station Mode: Advanced
LABEL
Advanced Setting
Frequency
DESCRIPTION
Save
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.
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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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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Table 15 Station Mode: Adapter (continued)
LABEL
Power Saving
Mode
DESCRIPTION
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.
Select this check box to enable OTIST.
OTIST (One-
Touch Intelligent
Security
Technology)
Setup Key
Start
Save
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.
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.
Click Save to save the changes to the AG-220 and return to the Link Info screen.
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)
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The following table describes the labels in this screen.
Table 16 Station Mode: Adapter (Windows Vista)
DESCRIPTION LABEL
Adapter Setting
OTIST (One-
Touch Intelligent
Security
Technology)
Setup Key
Select this check box to enable OTIST.
Start
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.
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.
Select this to enable Wi-fi Protected Setup on the AG-220.
WPS (Wi-Fi
Protected Setup)
PBC
PIN
Manual Input
Start
Save
Select this to use the PBC (Push-Button Configuration) WPS mode. When you use the PBC mode you do not use a 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.
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.
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 WPSenabled device within two minutes or the connection will time out. If the two WPS devices connect you will receive a successful connection message.
Click Save to save the changes back to the AG-220 and return to the Link Info 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.
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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.
1 Either select the AP to which you want to connect in the Site Survey screen (see
), or configure a profile in the normal way (see Section 4.4 on page 60 ).
2 In the WPA, WPA2 or 802.1x security screen (see Section 3.2.3.2 on page 40 and
), 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.
3 Click Next.
4 In the Summary screen that appears, click Save.
5 A message similar to the following appears in the bottom-right of your screen. Click the message.
Figure 45 Vista Security: Additional Information Required
6 The 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.
7 Click 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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1 Either select the AP to which you want to connect in the Site Survey screen (see
4.3 on page 54 ), or configure a profile (see
) in the normal way.
2 In 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.
3 Click Next.
4 In the Summary screen, click Save.
5 A message similar to the following appears in the bottom-right of your screen. Click the message.
Figure 47 Vista Security: Additional Information Required
6 The 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.
7 Click 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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C H A P T E R 5
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
.
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
DESCRIPTION TAB
AP Mode
Link Info
Configuration
Advanced
MAC Filter
Use this screen to see your current connection status, configuration and data rate statistics.
Use this screen to configure wireless LAN settings.
Use this screen to change the wireless network mode.
Use this screen to configure which computer(s) you want access to the wireless
LAN through the AG-220.
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5.1.2 Additional Setup Requirements
To bridge your wired and wireless network using the AG-220, the following requirements must be met:
1 The AG-220 must be installed on a computer connected to the wired network.
2 Either bridge the two interfaces (wireless and wired) on the computer (using the
Configuration screen of the ZyXEL utility in Windows XP) or configure network sharing (refer to
Appendix B on page 89 for an example).
3 Set the wireless station’s IP address to be dynamic if you want the wireless stations to access the wired network or the Internet through the AG-220. Refer to
for how to configure your computer’s IP address.
5.2 The Link Info Screen
Select the AP Mode check box and wait for about five seconds to display the screen as shown.
Figure 50 Access Point Mode: Link Info
74
The following table describes the labels in this screen.
Table 18 Access Point Mode: Link Info
LABEL DESCRIPTION
Status
SSID This field displays the name that identifies your AG-220 in the wireless LAN network.
Current Channel This field displays the radio channel the AG-220 is currently using.
Transmission Rate This field displays the current transmission rate of the AG-220 in megabits per second (Mbps).
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Table 18 Access Point Mode: Link Info (continued)
LABEL
Security
MAC
Output Power
Association List
MAC Address
Refresh
DESCRIPTION
This field shows whether data encryption is activated (WEP) or inactive
(DISABLE).
This field displays the MAC address of the AG-220.
This field shows the strength of the AG-220’s antenna gain or transmission power.
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.
This field displays the MAC addresses of a wireless client that is currently connected to the AG-220.
Click Refresh to update this screen.
5.3 The Configuration Screen
Click Configuration in the ZyXEL utility screen to display the screen as shown.
Figure 51 Access Point Mode: Configuration
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The following table describes the labels in this screen.
Table 19 Access Point Mode: Configuration
LABEL
Wireless Settings
SSID
Hide SSID
Channel
Output Power
Bridge
DESCRIPTION
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.
Select this check box to hide the SSID so an intruder cannot obtain the SSID through scanning using a site survey tool.
Set the operating frequency/channel depending on your geographical region.
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.
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
Authentication
Type
Pass Phrase
Transmit Key
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.
Select an authentication method. Choices are Auto, Shared Key and Open
System.
Refer to
for more information.
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
for more information.
At the time of writing, you cannot use passphrase to generate 256-bit WEP keys.
Select a default WEP key to use for data encryption. The key displays in the field below.
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Table 19 Access Point Mode: Configuration (continued)
LABEL DESCRIPTION
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.
Save
Cancel
ASCII WEP keys are case sensitive.
Click Save to save the changes.
Click Cancel to discard the changes.
5.4 The Advanced Screen
To set the network mode of the AG-220, click the Advanced tab.
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Figure 52 Access Point Mode: Advanced
The following table describes the labels in this screen.
Table 20 Access Point Mode: Advanced
LABEL
Advanced Setting
Frequency
DESCRIPTION
Save
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.
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.
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
for more information.
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Figure 53 Access Point Mode: MAC Filter
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The following table describes the labels in this screen.
Table 21 Access Point Mode: MAC Filter
LABEL
Filter Type
Filter MAC
Address 1-16
Save
Cancel
DESCRIPTION
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.
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.
Click Save to save the changes to the AG-220.
Click Cancel to discard the changes.
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C H A P T E R 6
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.
Table 22 About
LABEL
Driver Version
Utility Version
DESCRIPTION
This field displays the version number of the AG-220 driver.
This field displays the version number of the ZyXEL utility.
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.
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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.
82 Chapter 6 Maintenance
Figure 58 Uninstall: Control Panel
3 On the Control Panel screen click Uninstall a program.
Figure 59 Uninstall: Control Panel
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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 Yes 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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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.
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C H A P T E R 7
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
Table 23 Troubleshooting Starting ZyXEL Utility
PROBLEM
Cannot start the
ZyXEL Wireless
LAN utility
The ZyXEL utility icon does not display.
CORRECTIVE ACTION
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.
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.
7.2 Problem Connecting to an Access Point
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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7.3 Problem with the Link Quality
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.
7.4 Problems Communicating With Other Computers
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.
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Appendix A
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A P P E N D I X A
Product Specifications
Table 27 Product Specifications
PHYSICAL AND ENVIRONMENTAL
Product Name
Interface
Standards
Network Architectures
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Power
Voltage
Weight
Dimension
ZyXEL AG-220 802.11a/g Wireless USB Adapter
USB 2.0 compatible
IEEE 802.11a
IEEE 802.11b
IEEE 802.11g
Infrastructure
Ad-Hoc
0 ~ 50 degrees Centigrade
-30 ~ 60 degrees Centigrade
20 ~ 95% (non-condensing)
20 ~ 95% (non-condensing)
TX power consumption: < 380mA
RX power consumption: < 200mA
5V
25.8 g
(W) 95 mm × (D) 30 mm × (H) 16 mm
RADIO SPECIFICATIONS
Media Access Protocol
Frequency
IEEE 802.11
Industrial Scientific Medical Band
2.412 ~ 2.484 GHz (IEEE 802.11b/g) and 5.180 ~ 5.825GHz (IEEE
802.11a)
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Table 27 Product Specifications (continued)
Operating Frequencies and
Channels
Data Rate
Modulation
Average Output Power
RX Sensitivity
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
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
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)
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
IEEE 802.11g (OFDM): 54 Mbps: < -70 dBm
IEEE 802.11b (CCK): 11 Mbps: < -85 dBm
SOFTWARE SPECIFICATIONS
Device Drivers
Security
Roaming
Microsoft Windows 98 Second Edition, Windows ME, Windows 2000,
Windows XP, Windows XP 64-bit edition, Windows Vista
64/128/256-bit WEP
WPA/WPA-PSK/WPA2/WPA2-PSK
IEEE 802.1x
WPS (Windows Vista only)
IEEE 802.11a/b/g compliant
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A P P E N D I X B
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.
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
Appendix B
3 Right-click on the icon for your wired Ethernet adapter and click Properties.
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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
90
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.
Appendix B
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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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A P P E N D I X C
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
Appendix C
The Connect To window displays, showing all available networks.
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Figure 69 Vista: The Connect To Window
The security status of each wireless network displays, as well as an indication of its signal strength. If you use the mouse pointer to hover over a network’s entry, additional information about the network displays.
Figure 70 Vista: Additional Information
94
?
2 Double-click the network’s name to join the network, or select a network and click
Connect.
If the network to which you want to connect does not display, see the section
on setting up a connection manually on page <Link>96.
3 If security is enabled, you may be prompted to enter your security key.
Appendix C
Figure 71 Vista: Enter Security Key
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Your computer tries to connect to the wireless network.
Figure 72 Vista: Connecting
Appendix C
If your computer has connected to the wireless network successfully, the following screen displays.
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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.
96 Appendix C
Figure 74 Vista: Choose a Connection Option
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2 Click Manually connect to a wireless network. The following screen displays.
Figure 75 Vista: Connect Manually
Appendix C
The following table describes the labels in this screen.
Table 28 Vista: Connect Manually
LABEL DESCRIPTION
Network name
Security type
Enter your network’s SSID (Service Set IDentifier).
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)
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Table 28 Vista: Connect Manually
LABEL DESCRIPTION
Encryption type
Security Key /
Passphrase
Display Characters
Start this connection automatically
Connect even if the network is not broadcasting
Next
Cancel
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).
If your network uses WEP or WPA(2)-Personal security, enter the key here.
Select this if you do not want the security key characters to be hidden.
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.
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.
Click this to save your settings and move on to the next page.
Click this to stop setting up your network.
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.
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1 Click Start ( ) > Connect To. In the Connect to 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.
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4 Enter the Security key/Passphrase. Everybody on the network must enter this key in their computer’s wireless client in order to access the network. If you want to see the characters you entered, select the Display characters box. Otherwise, leave it empty
(dots display instead of the characters).
5 If you will use this ad-hoc network again, select the Save this network box. If you do this, the next time you click Start > Connect to, you can select the network from the list.
6 Click Next. The following screen displays.
Figure 79 Vista: Ad-hoc Network Ready
7 If you want to share files with other computers on the ad-hoc network, or let other computers use your Internet connection, click the Network and Sharing Center link.
Otherwise, click Close.
Windows XP
Be sure you have the Windows XP service pack 2 installed on your computer. Otherwise, you should at least have the Windows XP service pack 1 already on your computer and download the support patch for WPA from the Microsoft web site.
Windows XP SP2 screen shots are shown unless otherwise specified. Click the help icon ( ) in most screens, move the cursor to the item that you want the information about and click to view the help.
Activating Wireless Zero Configuration
1 Click Start, Control Panel and double-click Network Connections.
2 Double-click on the icon for wireless network connection.
3 The status window displays as shown below. Click Properties.
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Figure 80 Windows XP SP1: Wireless Network Connection Status
Figure 81 Windows XP SP2: Wireless Network Connection Status
Appendix C
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.
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Figure 82 Windows XP SP1: Wireless Network Connection Properties
Figure 83 Windows XP SP2: Wireless Network Connection Properties
102
If you see the following screen, refer to article 871122 on the Microsoft web site for information on starting WZC.
Appendix C
Figure 84 Windows XP SP2: WZC Not Available
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Connecting to a Wireless Network
1 Double-click the network icon for wireless connections in the system tray to open the
Wireless Network Connection Status screen.
Figure 85 Windows XP SP2: System Tray Icon
The type of the wireless network icon in Windows XP SP2 indicates the status of the AG-220.
Refer to the following table for details.
Table 29 Windows XP SP2: System Tray Icon
ICON DESCRIPTION
The AG-220 is connected to a wireless network.
The AG-220 is in the process of connecting to a wireless network.
The connection to a wireless network is limited because the network did not assign a network address to the computer.
The AG-220 is not connected to a wireless network.
2 Windows XP SP2: In the Wireless Network Connection Status screen, click View
Wireless Networks to open the Wireless Network Connection screen.
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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
104
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.
Appendix C
Figure 88 Windows XP SP2: Wireless Network Connection
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Appendix C
The following table describes the icons in the wireless network list.
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.
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.
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Figure 89 Windows XP SP1: Wireless Network Connection Properties
106
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
Appendix C
ZyXEL AG-220 User’s Guide
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.
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.
Security Settings
When you configure the AG-220 to connect to a secure network but the security settings are 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
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The following table describes the labels in this screen.
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
Data Encryption
Network Key
This field automatically shows the authentication method (Share, Open, WPA or
WPA-PSK) used by the selected network.
This field automatically shows the encryption type (TKIP, WEP or Disable) used by the selected network.
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.
Enter the key again for confirmation.
Confirm network key
Key index
(advanced)
The key is provided for me automatically
This is a computer-tocomputer (ad hoc) network; wireless access points are not used
OK
Cancel
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.
If this check box is selected, the wireless AP assigns the AG-220 a key.
If this check box is selected, you are connecting to another computer directly.
Click OK to save your changes.
Click Cancel to leave this screen without saving any changes you may have made.
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.
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Figure 93 Windows XP: Wireless (network) properties: Authentication
The following table describes the labels in this screen.
Table 33 Windows XP: Wireless (network) properties: Authentication
LABEL DESCRIPTION
Enable IEEE
802.1x authentication for this network
EAP Type
This field displays whether the IEEE 802.1x authentication is active.
If the network authentication is set to Open in the previous screen, you can choose to disable or enable this feature.
Properties
Select the type of EAP authentication. Options are Protected EAP (PEAP) and
Smart Card or other Certificate.
Click this button to open the properties screen and configure certificates. The screen varies depending on what you select in the EAP type field.
Select this check box to have the computer send its information to the network for authentication when a user is not logged on.
Authenticate as computer when computer information is available
Authenticate as guest when user or computer information is unavailable
OK
Cancel
Select this check box to have the computer access to the network as a guest when a user is not logged on or computer information is not available.
Click OK to save your changes.
Click Cancel to leave this screen without saving any changes you may have made.
Authentication Properties
Select an EAP authentication type in the Wireless (network) properties: Authentication screen and click the Properties button to display the following screen.
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Protected EAP Properties
Figure 94 Windows XP: Protected EAP Properties
110
The following table describes the labels in this screen.
Table 34 Windows XP: Protected EAP Properties
LABEL DESCRIPTION
Select the check box to verify the certificate of the authentication server.
Validate server certificate
Connect to these servers
Trusted Root
Certification
Authorities:
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.
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
Authentication
Method:
Enable Fast
Reconnect
OK
Cancel
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 an authentication method from the drop-down list box and click Configure to do settings.
Select the check box to automatically reconnect to the network (without reauthentication) if the wireless connection goes down.
Click OK to save your changes.
Click Cancel to leave this screen without saving any changes you may have made.
Appendix C
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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.
Table 35 Windows XP: Smart Card or other Certificate Properties
LABEL DESCRIPTION
Select this check box to use the smart card for authentication.
Use my smart card
Use a certificate on this computer
Validate server certificate
Connect to these servers
Trusted Root
Certification
Authorities:
Select this check box to use a certificate on your computer for authentication.
Select the check box to check the certificate of the authentication server.
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.
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
Use a different user name for the connection:
OK
Cancel
Click this button if you want to verify the selected certificate.
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.
Click OK to save your changes.
Click Cancel to leave this screen without saving any changes you may have made.
Ordering the Preferred Networks
Follow the steps below to manage your preferred networks.
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1 Windows XP SP2: Click Change the order of preferred networks in the Wireless
Network Connection screen (see
Figure 88 on page 105 ). The screen displays as shown.
Figure 96 Windows XP SP2: Wireless Networks: Preferred Networks
Windows XP SP1: In the Wireless Network Connection Status screen, click
Properties and the Wireless Networks tab to open the screen as shown.
Figure 97 Windows XP SP1: Wireless Networks: Preferred Networks
112
2 Whenever the AG-220 tries to connect to a new network, the new network is added in the Preferred networks table automatically. Select a network and click Move up or
Move down to change it's order, click Remove to delete it or click Properties to view
Appendix C
ZyXEL AG-220 User’s Guide the security, authentication or connection information of the selected network. Click
Add to add a preferred network into the list manually.
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114 Appendix C
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A P P E N D I X D
Wireless Security
Types of EAP Authentication
This section discusses some popular authentication types: EAP-MD5, EAP-TLS, EAP-TTLS,
PEAP and LEAP. Your wireless LAN device may not support all authentication types.
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.
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). A certificate (also called digital IDs) can be used to authenticate users and a CA issues certificates and guarantees the identity of each certificate owner.
EAP-MD5 (Message-Digest Algorithm 5)
MD5 authentication is the simplest one-way authentication method. The authentication server sends a challenge to the wireless station. The wireless station ‘proves’ that it knows the password by encrypting the password with the challenge and sends back the information.
Password is not sent in plain text.
However, MD5 authentication has some weaknesses. Since the authentication server needs to get the plaintext passwords, the passwords must be stored. Thus someone other than the authentication server may access the password file. In addition, it is possible to impersonate an authentication server as MD5 authentication method does not perform mutual authentication.
Finally, MD5 authentication method does not support data encryption with dynamic session key. You must configure WEP encryption keys for data encryption.
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EAP-TLS (Transport Layer Security)
With EAP-TLS, digital certifications are needed by both the server and the wireless stations for mutual authentication. The server presents a certificate to the client. After validating the identity of the server, the client sends a different certificate to the server. The exchange of certificates is done in the open before a secured tunnel is created. This makes user identity vulnerable to passive attacks. A digital certificate is an electronic ID card that authenticates the sender’s identity. However, to implement EAP-TLS, you need a Certificate Authority (CA) to handle certificates, which imposes a management overhead.
EAP-TTLS (Tunneled Transport Layer Service)
EAP-TTLS is an extension of the EAP-TLS authentication that uses certificates for only the server-side authentications to establish a secure connection. Client authentication is then done by sending username and password through the secure connection, thus client identity is protected. For client authentication, EAP-TTLS supports EAP methods and legacy authentication methods such as PAP, CHAP, MS-CHAP and MS-CHAP v2.
PEAP (Protected EAP)
Like EAP-TTLS, server-side certificate authentication is used to establish a secure connection, then use simple username and password methods through the secured connection to authenticate the clients, thus hiding client identity. However, PEAP only supports EAP methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card), for client authentication. EAP-GTC is implemented only by Cisco.
LEAP
LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE
802.1x.
Dynamic WEP Key Exchange
The AP maps a unique key that is generated with the RADIUS server. This key expires when the wireless connection times out, disconnects or reauthentication times out. A new WEP key is generated each time reauthentication is performed.
If this feature is enabled, it is not necessary to configure a default encryption key in the
Wireless screen. You may still configure and store keys here, but they will not be used while
Dynamic WEP is enabled.
Note: EAP-MD5 cannot be used with Dynamic WEP Key Exchange
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For added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use dynamic keys for data encryption. They are often deployed in corporate environments, but for public deployment, a simple user name and password pair is more practical. The following table is a comparison of the features of authentication types.
Table 36 Comparison of EAP Authentication Types
Mutual Authentication
Certificate – Client
Certificate – Server
Dynamic Key Exchange
Credential Integrity
Deployment Difficulty
Client Identity Protection
EAP-MD5
No
No
No
No
None
Easy
No
EAP-TLS EAP-TTLS
Yes
Yes
Yes
Yes
Strong
Hard
No
Yes
Optional
Yes
Yes
Strong
Moderate
Yes
PEAP
Yes
Optional
Yes
Yes
Strong
Moderate
Yes
LEAP
Yes
No
No
Yes
Moderate
Moderate
No
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.
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.
Encryption
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.
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TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication server. AES (Advanced Encryption Standard) is a block cipher that uses a 256-bit mathematical algorithm called Rijndael. They both include a per-packet key mixing function, a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism.
WPA and WPA2 regularly change and rotate the encryption keys so that the same encryption key is never used twice.
The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up a key hierarchy and management system, using the PMK to dynamically generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless stations. This all happens in the background automatically.
The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped.
By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism (MIC), with TKIP and AES it is more difficult to decrypt data on a Wi-Fi network than WEP and difficult for an intruder to break into the network.
The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference between the two is that WPA(2)-PSK uses a simple common password, instead of user-specific credentials. The common-password approach makes WPA(2)-PSK susceptible to brute-force password-guessing attacks but it’s still an improvement over WEP as it employs a consistent, single, alphanumeric password to derive a PMK which is used to generate unique temporal encryption keys. This prevent all wireless devices sharing the same encryption keys.
(a weakness of WEP)
User Authentication
WPA and WPA2 apply IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless stations using an external RADIUS database. WPA2 reduces the number of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time required to connect to a network. Other WPA2 authentication features that are different from
WPA include key caching and pre-authentication. These two features are optional and may not be supported in all wireless devices.
Key caching allows a wireless client to store the PMK it derived through a successful authentication with an AP. The wireless client uses the PMK when it tries to connect to the same AP and does not need to go with the authentication process again.
Pre-authentication enables fast roaming by allowing the wireless client (already connecting to an AP) to perform IEEE 802.1x authentication with another AP before connecting to it.
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WPA(2)-PSK Application Example
A WPA(2)s-PSK application looks as follows.
1 First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key
(PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters
(including spaces and symbols).
2 The AP checks each client's password and (only) allows it to join the network if it matches its password.
3 The AP and wireless clients use the pre-shared key to generate a common PMK.
4 The AP and wireless clients use the TKIP or AES encryption process to encrypt data exchanged between them.
Figure 98 WPA-PSK Authentication
WPA(2) with RADIUS Application Example
You need the IP address of the RADIUS server, its port number (default is 1812), and the
RADIUS shared secret. A WPA(2) application example with an external RADIUS server looks as follows. "A" is the RADIUS server. "DS" is the distribution system.
1 The AP passes the wireless client's authentication request to the RADIUS server.
2 The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly.
3 The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up a key hierarchy and management system, using the pair-wise key to dynamically generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients.
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Figure 99 WPA(2) with RADIUS Application Example
Security Parameters Summary
Refer to this table to see what other security parameters you should configure for each
Authentication Method/ key management protocol type. MAC address filters are not dependent on how you configure these security features.
Table 37 Wireless Security Relational Matrix
AUTHENTICATION
METHOD/ KEY
MANAGEMENT PROTOCOL
Open
ENCRYPTION
METHOD
ENTER
MANUAL KEY
None No
IEEE 802.1X
Open
Shared
WPA
WPA-PSK
WPA2
WPA2-PSK
WEP
WEP
TKIP/AES
TKIP/AES
TKIP/AES
TKIP/AES
Yes
Yes
No
Yes
No
Yes
Yes
No
No
Yes
Disable
Enable without Dynamic WEP Key
Enable with Dynamic WEP Key
Enable without Dynamic WEP Key
Disable
Enable with Dynamic WEP Key
Enable without Dynamic WEP Key
Disable
Enable
Disable
Enable
Disable
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A P P E N D I X E
Setting up Your Computer’s IP Address
All computers must have a 10M or 100M Ethernet adapter card and TCP/IP installed.
Windows 98/Me/2000/XP/Vista and later operating systems and all versions of UNIX/LINUX include the software components you need to install and use TCP/IP on your computer.
Windows 3.1 requires the purchase of a third-party TCP/IP application package.
TCP/IP should already be installed on computers using Windows 2000, XP and Vista.
After the appropriate TCP/IP components are installed, configure the TCP/IP settings in order to "communicate" with your network.
Windows 98/Me
Click Start, Settings, Control Panel and double-click the Network icon to open the Network window
Appendix E 121
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Figure 100 WIndows 98/Me: Network: Configuration
Installing Components
The Network window Configuration tab displays a list of installed components. You need a network adapter, the TCP/IP protocol and Client for Microsoft Networks.
If you need the adapter:
1 In the Network window, click Add.
2 Select Adapter and then click Add.
3 Select the manufacturer and model of your network adapter and then click OK.
If you need TCP/IP:
1 In the Network window, click Add.
2 Select Protocol and then click Add.
3 Select Microsoft from the list of manufacturers.
4 Select TCP/IP from the list of network protocols and then click OK.
If you need Client for Microsoft Networks:
1 Click Add.
2 Select Client and then click Add.
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3 Select Microsoft from the list of manufacturers.
4 Select Client for Microsoft Networks from the list of network clients and then click
OK.
5 Restart your computer so the changes you made take effect.
Configuring
1 In the Network window Configuration tab, select your network adapter's TCP/IP entry and click Properties
2 Click the IP Address tab.
• If your IP address is dynamic, select Obtain an IP address
automatically.
• If you have a static IP address, select Specify an IP address and type your information into the IP Address and Subnet Mask fields.
Figure 101 Windows 98/Me: TCP/IP Properties: IP Address
Appendix E
3 Click the DNS Configuration tab.
• If you do not know your DNS information, select Disable DNS.
• If you know your DNS information, select Enable DNS and type the information in the fields below (you may not need to fill them all in).
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Figure 102 Windows 98/Me: TCP/IP Properties: DNS Configuration
4 Click the Gateway tab.
• If you do not know your gateway’s IP address, remove previously installed gateways.
• If you have a gateway IP address, type it in the New gateway field and click Add.
5 Click OK to save and close the TCP/IP Properties window.
6 Click OK to close the Network window. Insert the Windows CD if prompted.
7 Restart your computer when prompted.
Verifying Settings
1 Click Start and then Run.
2 In the Run window, type "winipcfg" and then click OK to open the IP Configuration window.
3 Select your network adapter. You should see your computer's IP address, subnet mask and default gateway.
Windows 2000/XP
1 For Windows XP, click start, Control Panel. In Windows 2000, click Start, Settings,
Control Panel.
124 Appendix E
Figure 103 Windows XP: Start Menu
ZyXEL AG-220 User’s Guide
2 For Windows XP, click Network Connections. For Windows 2000, click Network and
Dial-up Connections.
Figure 104 Windows XP: Control Panel
Appendix E
3 Right-click Local Area Connection and then click Properties.
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Figure 105 Windows XP: Control Panel: Network Connections: Properties
4 Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and click
Properties.
Figure 106 Windows XP: Local Area Connection Properties
126
5 The Internet Protocol TCP/IP Properties window opens (the General tab in Windows
XP).
• If you have a dynamic IP address click Obtain an IP address
automatically.
Appendix E
ZyXEL AG-220 User’s Guide
• If you have a static IP address click Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields.
Click Advanced.
Figure 107 Windows XP: Advanced TCP/IP Settings
Appendix E
6 If you do not know your gateway's IP address, remove any previously installed gateways in the IP Settings tab and click OK.
Do one or more of the following if you want to configure additional IP addresses:
• In the IP Settings tab, in IP addresses, click Add.
• In TCP/IP Address, type an IP address in IP address and a subnet mask in Subnet mask, and then click Add.
• Repeat the above two steps for each IP address you want to add.
• Configure additional default gateways in the IP Settings tab by clicking Add in Default gateways.
• In TCP/IP Gateway Address, type the IP address of the default gateway in Gateway. To manually configure a default metric (the number of transmission hops), clear the Automatic metric check box and type a metric in Metric.
• Click Add.
• Repeat the previous three steps for each default gateway you want to add.
• Click OK when finished.
7 In the Internet Protocol TCP/IP Properties window (the General tab in Windows XP):
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• Click Obtain DNS server address automatically if you do not know your DNS server IP address(es).
• If you know your DNS server IP address(es), click Use the following
DNS server addresses, and type them in the Preferred DNS server and Alternate DNS server fields.
If you have previously configured DNS servers, click Advanced and then the DNS tab to order them.
Figure 108 Windows XP: Internet Protocol (TCP/IP) Properties
8 Click OK to close the Internet Protocol (TCP/IP) Properties window.
9 Click OK to close the Local Area Connection Properties window.
10Restart your computer (if prompted).
Verifying Settings
1 Click Start, All Programs, Accessories and then Command Prompt.
2 In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also open Network Connections, right-click a network connection, click Status and then click the Support tab.
Windows Vista
This section shows screens from Windows Vista Enterprise Version 6.0.
1 Click the Start icon, Control Panel.
128 Appendix E
Appendix E
Figure 109 Windows Vista: Start Menu
2 In the Control Panel, double-click Network and Internet.
Figure 110 Windows Vista: Control Panel
ZyXEL AG-220 User’s Guide
3 Click Network and Sharing Center.
Figure 111 Windows Vista: Network And Internet
4 Click Manage network connections.
Figure 112 Windows Vista: Network and Sharing Center
129
ZyXEL AG-220 User’s Guide
?
5 Right-click Local Area Connection and then click Properties.
During this procedure, click Continue whenever Windows displays a screen saying that it needs your permission to continue.
Figure 113 Windows Vista: Network and Sharing Center
6 Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
Figure 114 Windows Vista: Local Area Connection Properties
130
7 The Internet Protocol Version 4 (TCP/IPv4) Properties window opens (the General
tab).
Appendix E
ZyXEL AG-220 User’s Guide
• If you have a dynamic IP address click Obtain an IP address automatically.
• If you have a static IP address click Use the following IP address and fill in the IP
address, Subnet mask, and Default gateway fields.
• Click Advanced.
Figure 115 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties
Appendix E
8 If you do not know your gateway's IP address, remove any previously installed gateways in the IP Settings tab and click OK.
Do one or more of the following if you want to configure additional IP addresses:
• In the IP Settings tab, in IP addresses, click Add.
• In TCP/IP Address, type an IP address in IP address and a subnet mask in Subnet
mask, and then click Add.
• Repeat the above two steps for each IP address you want to add.
• Configure additional default gateways in the IP Settings tab by clicking Add in
Default gateways.
• In TCP/IP Gateway Address, type the IP address of the default gateway in Gateway.
To manually configure a default metric (the number of transmission hops), clear the
Automatic metric check box and type a metric in Metric.
• Click Add.
• Repeat the previous three steps for each default gateway you want to add.
• Click OK when finished.
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Figure 116 Windows Vista: Advanced TCP/IP Properties
132
9 In the Internet Protocol Version 4 (TCP/IPv4) Properties window, (the General tab):
• Click Obtain DNS server address automatically if you do not know your DNS server IP address(es).
• If you know your DNS server IP address(es), click Use the following DNS server
addresses, and type them in the Preferred DNS server and Alternate DNS server fields.
If you have previously configured DNS servers, click Advanced and then the DNS tab to order them.
Appendix E
ZyXEL AG-220 User’s Guide
Figure 117 Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties
10 Click OK to close the Internet Protocol Version 4 (TCP/IPv4) Properties window.
11 Click Close to close the Local Area Connection Properties window.
12 Close the Network Connections window.
13 Turn on your AG-220 and restart your computer (if prompted).
Verifying Settings
1 Click Start, All Programs, Accessories and then Command Prompt.
2 In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also open Network Connections, right-click a network connection, click Status and then click the Support tab.
Appendix E 133
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134 Appendix E
A
About
About your ZyXEL AG-220
Access point (AP)
Access point mode
Activating a profile
Adapter
Ad-Hoc
Advanced Encryption Standard
Advanced settings
Antenna gain
Antenna output power
AP
AP MAC address
AP mode
additional setup requirements
advanced
configuration
MAC filter
requirements
Association list
Authentication
Authentication type
auto
open system
shared key
Auto authentication
Automatic connection
Automatic network scan
B
Band
Bridge
C
CCMP
Certificate Authority (CA)
Index
ZyXEL AG-220 User’s Guide
Index
Certifications
Notices
Viewing
Changing modes
Channel
Configuration
Configuration method
important note
Wireless Zero Configuration (WZC)
Configuration methods
ZyXEL utility
Configuration status
Connection status
Contact Information
Continuous access mode
Copyright
Creating a new profile
credentials
Current configuration
Current connection status
Current status
Customer Support
D
Data encryption
Data rate
dBm
Digital ID
Dimensions
Disclaimer
Download
Driver version
Dynamic WEP Key Exchange
E
EAP (Extensible Authentication Protocol)
EAP authentication
EAP type
EAP-PEAP
135
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EAP-TLS
EAP-TTLS
Enabling OTIST
Encryption
Encryption type
Environmental specifications
F
Fast power save
FCC Interference Statement
Frequency
G
Getting started
Graphics icons key
H
Hardware connections
Help
Hide SSID
Humidity
I
IEEE 802.1x
Industrial Scientific Medical Band
Infrastructure
Initialization vector (IV)
Installation
Interface
Internet access
IP address dynamic
setup
L
Link information
136
Link quality
M
MAC
MAC filter
action
Manual network connection
Maximum power save
Mbps
Message Integrity Check (MIC)
Mode change
Modulation
N
Network interface card (NIC)
Network mode
Network name
Network overlap
Network scan
Network sharing
Network type
O
One-Touch Intelligent Security Technology (OTIST)
Online help
Open system authentication
OTIST
enabling
introduction
start
Output power
P
Packet collisions
Pairwise Master Key (PMK)
Passphrase
Password phrase
PEAP
Peer computer
Index
Physical specifications
Power consumption
Power saving mode
Preamble
Product Registration
Product specifications
Profile
activation
add new
configure
default
delete
edit
information
new
Q
Quick Start Guide
R
Radio interference
Radio specifications
RADIUS
RADIUS server
Real-time data traffic statistics
Receive rate
Registration
Product
Related Documentation
S
Safety Warnings
Save power
Scan
Scan Info
Search
Security
data encryption
parameters
settings
security settings and Vista
Sensitivity
Service Set Identity (SSID)
Index
ZyXEL AG-220 User’s Guide
Setup key
Shared key authentication
Signal strength
Site information
Site survey
scan
security settings
Sleep mode
SSID
Starting OTIST
Statistics
Support CD
Syntax conventions
System tray
T
Temperature
Temporal Key Integrity Protocol (TKIP)
The
TLS
Total receive
Total transmit
Trademarks
Transmission rate
Transmit key
Transmit rate
Trend chart
Troubleshooting
AP connection
link quality
network communication
starting the ZyXEL Utility
TTLS
U
Uninstalling the ZyXEL Utility
Upgrading the ZyXEL Utility important step
Upgrading ZyXEL Utility
USB
USB port
User authentication
Utility installation
Utility version
137
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V
Validate server certificate
Vista
Voltage
W
Warranty
Note
Weight
WEP
automatic setup
manual setup
passphrase
WEP (Wired Equivalent Privacy)
WEP Encryption
WEP key generation
WEP security
Wi-Fi Protected Access
WiFi Protected Setup
Windows
Windows Vista
Windows XP
Wired network
Wireless client
Wireless LAN introduction
security
Wireless LAN (WLAN)
Wireless network
Wireless security
Wireless standard
Wireless station mode
adapter
advanced
configuration
security settings
site survey
trend chart
WLAN
Security parameters
WPA
WPA2
WPA2-Pre-Shared Key
WPA2-PSK
WPA-PSK
WPS
WZC activating
138 network connection
not available
preferred network
security setting
system tray icon
WZC (Wireless Zero Configuration)
Z
ZyXEL AG-220 Modes
ZyXEL Utility
accessing
driver version number
exiting
help
reactivating
status
system tray icon
upgrading
version number
Index
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