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ZyXEL Communications ZyAIR G-200 User Manual

802.11g wireless usb adapter
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ZyAIR G-200
802.11g Wireless USB Adapter
User's Guide
Version 1.1
11/2004

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Summary of Contents for ZyXEL Communications ZyAIR G-200

  • Page 1 ZyAIR G-200 802.11g Wireless USB Adapter User's Guide Version 1.1 11/2004...
  • Page 2 ZyAIR G-200 User’s Guide Copyright Copyright ©2004 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.

  • Page 3: Zyxel Limited Warranty

    ZyAIR G-200 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 one (1) year from the date of purchase. During the...

  • Page 4: Information For Canadian Users

    ZyAIR G-200 User’s Guide Information for Canadian Users The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective operation and safety requirements. The Industry Canada does not guarantee that the equipment will operate to a user's satisfaction.

  • Page 5: Federal Communications Commission

    47 CFR 2.1093 paragraph (d) (2). 2. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Certifications Refer to the product page at www.zyxel.com. FCC Statement (FCC) Interference Statement ZyAIR G-200 User’s Guide...

  • Page 7: Customer Support

    +47 22 80 61 80 www.zyxel.no +47 22 80 61 81 +46 31 744 7700 www.zyxel.se +46 31 744 7701 +358-9-4780-8411 www.zyxel.fi ZyAIR G-200 User’s Guide REGULAR MAIL ZyXEL Communications Corp. 6 Innovation Road II Science Park Hsinchu 300 Taiwan ZyXEL Communications Inc.

  • Page 9: Table Of Contents

    Chapter 4 Troubleshooting ... 4-1 Problems Starting the ZyAIR Utility Program ... 4-1 Problems Communicating With Other Computers... 4-1 Problem with the Link Status ... 4-2 The ZyAIR Does Not Respond ... 4-2 Table of Contents ZyAIR G-200 User’s Guide Table of Contents...
  • Page 11 ZyAIR G-200 User’s Guide List of Figures Figure 1-1 Windows XP: System Tray Icon ... 1-1 Figure 1-2 Windows XP: System Tray Icon ... 1-1 Figure 1-3 Windows XP: Wireless Network Connection Status... 1-2 Figure 1-4 Windows XP: Connect to Wireless Network ... 1-2 Figure 1-5 Windows XP: Wireless Network Connection Properties ...
  • Page 12 ZyAIR G-200 User’s Guide List of Tables Table 1-1 ZyAIR Utility: System Tray Icon ... 1-3 Table 2-1 ZyAIR Utility: Link Info ... 2-3 Table 2-2 Site Survey ... 2-5 Table 2-3 Configuration ... 2-6 Table 2-4 WEP Authentication ... 2-10 Table 2-5 WPA Authentication ...

  • Page 13: Syntax Conventions

    Window and command choices are in Bold Times New Roman font. Predefined field choices are in Bold Arial font. • The ZyXEL ZyAIR G-200 802.11g Wireless USB Adapter is referred to as the ZyAIR in this guide. • The ZyAIR G-200 802.11g Wireless USB Utility may be referred to as the ZyAIR Utility in this guide.

  • Page 15: Chapter 1 Getting Started

    2. If the icon for the wireless network connection is not in the system tray, click Start, Control Panel and double-click on Network Connections. Getting Started ZyAIR G-200 User’s Guide Chapter 1 Getting Started This chapter prepares you to using the ZyAIR Utility.

  • Page 16: Figure 1-3 Windows Xp: Wireless Network Connection Status

    ZyAIR G-200 User’s Guide 3. Double-click on the icon for wireless network connection to display a status window as shown next. Figure 1-3 Windows XP: Wireless Network Connection Status 4. Click Properties and click the Wireless Networks tab. Then skip to Step 6.

  • Page 17: Accessing The Zyair Utility

    The ZyAIR is working properly but is not connected to any AP or wireless station. Green The ZyAIR is connected to a wireless network. Double click on the ZyAIR Utility icon in the system tray to open the ZyAIR Utility. Getting Started ZyAIR G-200 User’s Guide DESCRIPTION...

  • Page 19: Chapter 2 Using The Zyair Utility

    ZyAIR G-200 User’s Guide Chapter 2 Using the ZyAIR Utility This chapter shows you how to configure the ZyAIR using the ZyAIR Utility. About Wireless LAN Network This section describes the wireless LAN network terms and applications. 2.1.1 SSID The SSID (Service Set Identity) is a unique name shared among all wireless devices in a wireless network.

  • Page 20: Roaming

    ZyAIR G-200 User’s Guide To set up an ad-hoc network, configure all wireless clients in ad-hoc network type and use the same SSID and channel. Infrastructure When a number of wireless clients are connected using a single AP, you have a Basic Service Set (BSS).

  • Page 21: The Link Info Screen

    This field displays the name of the wireless LAN network to which the ZyAIR is associated. Status This field displays the connection status of the ZyAIR. This field is blank if there is no device associated with the ZyAIR. Using the ZyAIR Utility Figure 2-4 Roaming Example DESCRIPTION ZyAIR G-200 User’s Guide...

  • Page 22: The Site Survey Screen

    ZyAIR G-200 User’s Guide Table 2-1 ZyAIR Utility: Link Info LABEL Re-Connect Click Re-Connect to re-establish the connection to the wireless network whose SSID is shown in the Current SSID field. Channel This field displays the radio channel the ZyAIR is currently using.

  • Page 23: Connecting To A Wireless Network

    Help Click Help to display on-line help screen. 2.3.1 Connecting to a Wireless Network Follow the steps below to connect to a network. Using the ZyAIR Utility Figure 2-6 Site Survey Table 2-2 Site Survey DESCRIPTION ZyAIR G-200 User’s Guide...

  • Page 24: The Configuration Screen

    ZyAIR G-200 User’s Guide 1. Click Search to scan for all available wireless networks within range. 2. To join a network, either click an entry in the table to select a wireless network and then click Connect or double-click an entry.

  • Page 25: Wireless Lan Security

    RADIUS (Remote Authentication Dial-In User Service) server either on the WAN or your LAN to provide authentication service for wireless stations Figure 2-8 ZyAIR Wireless Security Levels Using the ZyAIR Utility Table 2-3 Configuration DESCRIPTION ZyAIR G-200 User’s Guide...

  • Page 26: The Security Configuration Screen

    ZyAIR G-200 User’s Guide If you do not enable any wireless security on your ZyAIR, communication between the ZyAIR and the wired network is accessible to any wireless networking device that is in the coverage area. The Security Configuration Screen Configure the wireless LAN security by clicking the Set Security button in the Configuration screen.

  • Page 27: Figure 2-9 Wep Authentication Steps

    ZyAIR G-200 User’s Guide Figure 2-9 WEP Authentication Steps Open System authentication involves an unencrypted two-message procedure. A wireless station sends an open system authentication request to the AP, which will then automatically accept and connect the wireless station to the network. In effect, open system is not authentication at all as any station can gain access to the network.

  • Page 28: Figure 2-10 Wep Authentication

    ZyAIR G-200 User’s Guide Figure 2-10 WEP Authentication Follow the instructions in the table to configure the WEP encryptions. FIELD Authentication Select WEP from the drop-down list box to activate WEP Authentication. Encryption Select either 64 Bits or 128 Bits from the drop-down list box to activate WEP encryption and then fill in the related fields.

  • Page 29: User Authentication

    WLAN. Using the ZyAIR Utility Table 2-4 WEP Authentication DESCRIPTION You must configure all four WEP keys the first time you use the ZyAIR. ASCII WEP keys are case sensitive. ZyAIR G-200 User’s Guide 2-11...

  • Page 30: Figure 2-11 Wpa Authentication

    ZyAIR G-200 User’s Guide Encryption WPA improves data encryption by using Temporal Key Integrity Protocol (TKIP), Message Integrity Check (MIC) and IEEE 802.1x. Temporal Key Integrity Protocol (TKIP) uses 128-bit keys that are dynamically generated and distributed by the authentication server. It includes 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.

  • Page 31: Data Encryption With Wpa-Psk

    Using the ZyAIR Utility Table 2-5 WPA Authentication DESCRIPTION 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. ZyAIR G-200 User’s Guide 2-13...

  • Page 32: Figure 2-12 Wpa - Psk Authentication

    ZyAIR G-200 User’s Guide WPA-PSK Application Example A WPA-PSK application looks as follows. First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key (PSK) or Passphrase must consist of between 8 and 63 ASCII characters (including spaces and symbols).

  • Page 33: Figure 2-13 Wpa With Radius Application Example

    ZyAIR G-200 User’s Guide Figure 2-13 WPA with RADIUS Application Example Figure 2-14 WPA-PSK Authentication Follow the instructions in the table to configure the WEP encryptions. Table 2-6 WPA-PSK Authentication FIELD DESCRIPTION Authentication Select WPA-PSK from the drop-down list box.

  • Page 34: Data Encryption With 802.1X

    ZyAIR G-200 User’s Guide Table 2-6 WPA-PSK Authentication FIELD Encryption Status All unicast traffic is automatically encrypted by TKIP when WPA or WPA-PSK Authentication is selected. See the section on Encryption for details about Temporal Key Integrity Protocol (TKIP). Passphrase Type a Passphrase from 8 to 63 ASCII characters long.

  • Page 35: The About Screen

    Select the check box to have your server validate this certificate. Click OK to apply the changes and close the screen. The About Screen The About screen displays related version numbers of the ZyAIR. Using the ZyAIR Utility ZyAIR G-200 User’s Guide DESCRIPTION 2-17...

  • Page 36: Figure 2-16 About

    ZyAIR G-200 User’s Guide The following table describes the read-only fields in this screen. FIELD Utility Version This field displays the version number of the ZyAIR Utility. Driver Version This field displays the version number of the ZyAIR wireless card driver.

  • Page 37: Chapter 3 Maintenance

    Removing the ZyAIR Utility Follow the steps below to remove (or uninstall) the ZyAIR Utility from your computer. Click Start, Programs, ZyAIR G-200 Wireless LAN USB Adapter, Uninstall. A Confirm Uninstallation window displays. Click OK to remove the driver and the utility software.

  • Page 38: Figure 3-2 Zyair Utility: Exit

    ZyAIR G-200 User’s Guide Double-click the removable device icon in the system tray. Figure 3-3 Removable Device System Tray Icon: Windows XP When a Safely Remove Hardware window displays, select the ZyAIR device in the Hardware devices list and click Stop.

  • Page 39: Figure 3-6 Stop A Hardware Device: Windows Xp

    ZyAIR G-200 User’s Guide Figure 3-6 Stop a Hardware device: Windows XP After the following notice window displays in the system tray, you can safely disconnect the ZyAIR from your computer. Figure 3-7 Safe To Remove Hardware Message: Windows XP...

  • Page 41: Chapter 4 Troubleshooting

    Make sure that the computer and the AP share the same security option and key. Verify the settings in the Security Configuration screen. Troubleshooting ZyAIR G-200 User’s Guide Chapter 4 Troubleshooting CORRECTIVE ACTION CORRECTIVE ACTION...

  • Page 42: Problem With The Link Status

    ZyAIR G-200 User’s Guide Table 4-2 Troubleshooting Communication Problems PROBLEM Ad-Hoc (IBSS) Verify that the peer computer(s) is turned on. Make sure the ZyAIR and the peer computer(s) are using the same SS ID and channel. Make sure that the ZyAIR and the peer computer(s) share the same security option and key.

  • Page 43: Benefits Of A Wireless Lan

    Ad-hoc network or Independent Basic Service Set (IBSS). See the following diagram of an example of an Ad-hoc wireless LAN. Wireless LAN and IEEE 802.11 ZyAIR G-200 User’s Guide Appendix A...
  • Page 44 ZyAIR G-200 User’s Guide Diagram 4-1 Peer-to-Peer Communication in an Ad-hoc Network Infrastructure Wireless LAN Configuration For infrastructure WLANs, multiple access points (APs) link the WLAN to the wired network and allow users to efficiently share network resources. The access points not only provide communication with the wired network but also mediate wireless network traffic in the immediate neighborhood.
  • Page 45 RADIUS Server Authentication Sequence The following figure depicts a typical wireless network with a remote RADIUS server for user authentication using EAPOL (EAP Over LAN). Wireless LAN With IEEE 802.1x ZyAIR G-200 User’s Guide Appendix B...
  • Page 46 ZyAIR G-200 User’s Guide Diagram 4-3 Sequences for EAP MD5–Challenge Authentication Client computer access authorized. Client computer access not authorized. Wireless LAN With IEEE 802.1x...

  • Page 47: Types Of Eap Authentication

    ZyAIR G-200 User’s Guide Appendix C Types of EAP Authentication This appendix discusses the five popular EAP authentication types: EAP-MD5, EAP-TLS, EAP- TTLS, PEAP and LEAP. The type of authentication you use depends on the RADIUS server. Consult your network administrator for more information.
  • Page 48 ZyAIR G-200 User’s Guide Comparison of EAP Authentication Types EAP-MD5 Mutual Authentication Certificate – Client Certificate – Server Dynamic Key Exchange Credential Security None Deployment Easy Difficulty Wireless Security Poor Client Identity Protection EAP-TLS EAP-TTLS Optional Optional Strong Strong Hard...

  • Page 49: Product Specifications

    Product Name ZyAIR G-200 Wireless LAN USB Adapter Type USB 2.0 IEEE 802.11b Standards IEEE 802.11g Antenna Internal PCB antenna Power 5V DC Dimensions 110.3 mm(H) x 73.1 mm(W) x 53.8 mm(D) Weight 107g Media Access Protocol IEEE802.11 Frequency 2.4 ~ 2.4835GHz (Industrial Scientific Medical Band )
  • Page 50 ZyAIR G-200 User’s Guide Device Drivers Windows 2000, Windows XP. Roaming 802.11 compliant Supports 64-bit and 128-bit encryption Operating: 0° ~ 55° C Temperature Storage: -25° ~ 70° C Relative Humidity 10% to 90% (non-condensing) At the time of writing.
  • Page 51 Ad-Hoc(IBSS) ... 2-1 Infrastructure ... 2-2 Online Registration... iii Open System... 2-9 Operating Mode...See Network Type Passphrase... 2-8, 2-10, 2-13, 2-16, 2-17 PEAP ... E ...See EAP Preface ... xiii problem description ... 4-1 Product specifications...G ZyAIR G-200 User’s Guide Index...
  • Page 52 ZyAIR G-200 User’s Guide Protected EAP ... See PEAP Related Documentation ... xiii Remove the ZyAIR Utility ... 3-1 RF signals ...A Roaming ... 2-2 Example... 2-2 Safely disconnect the ZyAIR... 3-1 ...See SSID Service Set Identity Shared Key ... 2-9 Site Survey ...

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