ZyXEL Communications G220V2 WLAN USB Adapter User Manual ZyXEL G 220F User s Guide V1 00 Oct 2004

ZyXEL Communications Corporation WLAN USB Adapter ZyXEL G 220F User s Guide V1 00 Oct 2004

Users Manual Revised

ZyXEL G-220 v2802.11g WLAN USB AdapterUser’s GuideVersion 1.00Edition 13/2006
ZyXEL G-220 v2 User’s GuideCopyright 3CopyrightCopyright © 2006 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.DisclaimerZyXEL 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.TrademarksZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc. Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.
ZyXEL G-220 v2 User’s Guide4 Federal Communications Commission (FCC) Interference StatementFederal CommunicationsCommission (FCC) InterferenceStatementThe device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:• This device may not cause harmful interference.• This device must accept any interference received, including interference that may cause undesired operations.This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:1Reorient or relocate the receiving antenna.2Increase the separation between the equipment and the receiver.3Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.4Consult the dealer or an experienced radio/TV technician for help.Notice 1Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.This product has been designed for the WLAN 2.4 GHz network throughout the EC region and Switzerland, with restrictions in France.Caution1The equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment, under 47 CFR 2.1093 paragraph (d)(2).2This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
ZyXEL G-220 v2 User’s GuideFederal Communications Commission (FCC) Interference Statement 5Certifications1Go to www.zyxel.com. 2Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.3Select the certification you wish to view from this page.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。
ZyXEL G-220 v2 User’s Guide6ZyXEL Limited WarrantyZyXEL Limited WarrantyZyXEL 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 (2) 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.NoteRepair 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 ZyXEL's Service Center for your Return Material Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit be insured when shipped. Any returned products without proof of purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country to country.Online RegistrationRegister 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 G-220 v2 User’s GuideCustomer Support 7Customer SupportPlease 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. METHODLOCATIONSUPPORT E-MAIL TELEPHONEAWEB SITEREGULAR MAILSALES E-MAIL FAX FTP SITECORPORATE HEADQUARTERS (WORLDWIDE)support@zyxel.com.tw +886-3-578-3942 www.zyxel.comwww.europe.zyxel.comZyXEL Communications Corp.6 Innovation Road IIScience ParkHsinchu 300Ta i w a nsales@zyxel.com.tw +886-3-578-2439 ftp.zyxel.comftp.europe.zyxel.comCZECH REPUBLICinfo@cz.zyxel.com +420-241-091-350 www.zyxel.cz ZyXEL CommunicationsCzech s.r.o.Modranská 621143 01 Praha 4 - ModranyCeská Republikainfo@cz.zyxel.com +420-241-091-359DENMARKsupport@zyxel.dk +45-39-55-07-00 www.zyxel.dk ZyXEL Communications A/SColumbusvej2860 SoeborgDenmarksales@zyxel.dk +45-39-55-07-07FINLANDsupport@zyxel.fi +358-9-4780-8411 www.zyxel.fi ZyXEL Communications OyMalminkaari 1000700 HelsinkiFinlandsales@zyxel.fi +358-9-4780 8448FRANCEinfo@zyxel.fr +33-4-72-52-97-97 www.zyxel.fr ZyXEL France 1 rue des VergersBat. 1 / C69760 Limonest France+33-4-72-52-19-20GERMANYsupport@zyxel.de +49-2405-6909-0 www.zyxel.de ZyXEL Deutschland GmbH.Adenauerstr. 20/A2 D-52146WuerselenGermanysales@zyxel.de +49-2405-6909-99HUNGARYsupport@zyxel.hu +36-1-3361649 www.zyxel.hu ZyXEL Hungary48, Zoldlomb Str.H-1025, BudapestHungaryinfo@zyxel.hu +36-1-3259100KAZAKHSTANhttp://zyxel.kz/support +7-3272-590-698 www.zyxel.kz ZyXEL Kazakhstan43, Dostyk ave.,Office 414Dostyk Business Centre050010, AlmatyRepublic of Kazakhstansales@zyxel.kz +7-3272-590-689NORTH AMERICAsupport@zyxel.com 1-800-255-4101+1-714-632-0882www.us.zyxel.com ZyXEL Communications Inc.1130 N. Miller St.AnaheimCA 92806-2001U.S.A.sales@zyxel.com +1-714-632-0858 ftp.us.zyxel.comNORWAYsupport@zyxel.no +47-22-80-61-80 www.zyxel.no ZyXEL Communications A/SNils Hansens vei 130667 OsloNorwaysales@zyxel.no +47-22-80-61-81
ZyXEL G-220 v2 User’s Guide8Customer SupportPOLANDinfo@pl.zyxel.com +48-22-5286603 www.pl.zyxel.com ZyXEL Communicationsul.Emilli Plater 5300-113 WarszawaPoland+48-22-5206701RUSSIAhttp://zyxel.ru/support +7-095-542-89-29 www.zyxel.ru ZyXEL RussiaOstrovityanova 37a Str.Moscow, 117279Russiasales@zyxel.ru +7-095-542-89-25SPAINsupport@zyxel.es +34-902-195-420 www.zyxel.es ZyXEL CommunicationsAlejandro Villegas 331º, 28043 MadridSpainsales@zyxel.es +34-913-005-345SWEDENsupport@zyxel.se +46-31-744-7700 www.zyxel.se ZyXEL Communications A/SSjöporten 4, 41764 GöteborgSwedensales@zyxel.se +46-31-744-7701UKRAINEsupport@ua.zyxel.com +380-44-247-69-78 www.ua.zyxel.com ZyXEL Ukraine13, Pimonenko Str.Kiev, 04050Ukrainesales@ua.zyxel.com +380-44-494-49-32UNITED KINGDOMsupport@zyxel.co.uk +44-1344 30304408707 555779 (UK only) www.zyxel.co.uk ZyXEL Communications UKLtd.,11 The Courtyard,Eastern Road, Bracknell,Berkshire, RG12 2XB,United Kingdom (UK)sales@zyxel.co.uk +44-1344 303034 ftp.zyxel.co.ukA. “+” is the (prefix) number you enter to make an international telephone call.METHODLOCATIONSUPPORT E-MAIL TELEPHONEAWEB SITEREGULAR MAILSALES E-MAIL FAX FTP SITE
ZyXEL G-220 v2 User’s GuideTable of Contents 9Table of ContentsCopyright .................................................................................................................. 3Federal Communications Commission (FCC) Interference Statement ............... 4ZyXEL Limited Warranty.......................................................................................... 6Customer Support.................................................................................................... 7Table of Contents ..................................................................................................... 9List of Figures ........................................................................................................ 13List of Tables .......................................................................................................... 15Preface .................................................................................................................... 17Chapter 1Getting Started ....................................................................................................... 191.1 About Your ZyXEL G-220 v2 ............................................................................191.1.1 Application Overview ................................................................................191.1.1.1 Infrastructure ...................................................................................191.1.1.2 Ad-Hoc ............................................................................................201.1.1.3 Access Point Mode ........................................................................211.2 ZyXEL G-220 v2 Hardware and Utility Installation .............................................211.3 Configuration Methods ......................................................................................211.4 Windows XP Users Only ....................................................................................211.5 Accessing the ZyXEL Utility ..............................................................................221.6 Connecting to a Wireless LAN ..........................................................................221.6.1 Site Survey ...............................................................................................231.7 ZyXEL G-220 v2 Modes ...................................................................................241.7.1 Change ZyXEL G-220 v2 Mode ...............................................................251.8 ZyXEL Utility Screen Summary .........................................................................25Chapter 2Wireless LAN Network ........................................................................................... 272.1 Wireless LAN Overview ....................................................................................272.1.1 SSID .........................................................................................................272.1.2 Channel ....................................................................................................272.1.3 Transmission Rate (Tx Rate) ....................................................................272.2 Wireless LAN Security Overview ......................................................................272.2.1 Data Encryption with WEP ........................................................................28
ZyXEL G-220 v2 User’s Guide10 Table of Contents2.2.2 IEEE 802.1x ..............................................................................................282.2.2.1 EAP Authentication .........................................................................282.2.3 WPA(2) .....................................................................................................292.2.3.1 Encryption ......................................................................................292.2.3.2 User Authentication ........................................................................292.2.4 WPA(2)-PSK Application Example ...........................................................292.2.5 WPA(2) with RADIUS Application Example ..............................................302.3 Encryption Type .................................................................................................312.4 Preamble Type ...................................................................................................312.5 Introduction to OTIST .....................................................................................322.5.1 Enabling OTIST ........................................................................................322.5.1.1 AP ...................................................................................................322.5.1.2 Wireless Client ................................................................................332.5.2 Starting OTIST .........................................................................................332.5.3 Notes on OTIST ........................................................................................34Chapter 3Wireless Station Mode Configuration .................................................................. 353.1 Wireless Station Mode Overview ......................................................................353.2 The Link Info Screen ..........................................................................................353.2.1 Trend Chart ...............................................................................................363.3 The Site Survey Screen .....................................................................................373.3.1 Connecting to a WLAN Network ...............................................................383.3.2 Security Settings .......................................................................................393.3.2.1 WEP Encryption ..............................................................................393.3.2.2 WPA-PSK/WPA2-PSK .....................................................................403.3.2.3 WPA/WPA2 .....................................................................................413.3.2.4 IEEE 802.1x ....................................................................................423.3.3 Confirm Save Screen ................................................................................433.4 The Profile Screen .............................................................................................443.4.1 Adding a New Profile ................................................................................463.5 The Adapter Screen ...........................................................................................50Chapter 4Access Point Mode Configuration........................................................................ 534.1 Access Point Mode Introduction ........................................................................534.1.1 Additional Setup Requirements ................................................................534.2 The Link Info Screen .........................................................................................534.3 The Configuration Screen .................................................................................544.4 The MAC Filter Screen ......................................................................................57
ZyXEL G-220 v2 User’s GuideTable of Contents 11Chapter 5Maintenance ........................................................................................................... 595.1 The About Screen .............................................................................................595.2 Uninstalling the ZyXEL Utility ............................................................................595.3 Upgrading the ZyXEL Utility ..............................................................................60Chapter 6 Troubleshooting .................................................................................................. 636.1 Problems Starting the ZyXEL Utility Program ....................................................636.2 Problem Connecting to an Access Point ............................................................636.3 Problem with the Link Status ..............................................................................646.4 Problems Communicating With Other Computers .............................................64Appendix AProduct Specifications .......................................................................................... 65Appendix BAccess Point Mode Setup Example ..................................................................... 67Appendix CDisable Windows XP Wireless LAN Configuration Tool..................................... 71Appendix DManagement with Wireless Zero Configuration.................................................. 77Appendix ETypes of EAP Authentication................................................................................ 89Appendix FSetting up Your Computer’s IP Address.............................................................. 95Index...................................................................................................................... 107
ZyXEL G-220 v2 User’s Guide12 Table of Contents
ZyXEL G-220 v2 User’s GuideList of Figures 13List of FiguresFigure 1 Application: Infrastructure ....................................................................... 20Figure 2 Application: Ad-Hoc ................................................................................ 20Figure 3 Application: Access Point Mode .............................................................. 21Figure 4 ZyXEL Utility: System Tray Icon .............................................................. 22Figure 5 ZyXEL Utility: Site Survey ....................................................................... 23Figure 6 ZyXEL Utility: Security Setting ................................................................ 24Figure 7 ZyXEL Utility: Link Info ............................................................................ 24Figure 8 ZyXEL Utility: Change Modes .................................................................. 25Figure 9 Menu Summary: Station Mode ................................................................ 26Figure 10 Menu Summary: AP Mode .................................................................... 26Figure 11 WPA-PSK Authentication ....................................................................... 30Figure 12 WPA(2) with RADIUS Application Example ........................................... 31Figure 13 Station Mode: Link Info ......................................................................... 35Figure 14 Station Mode: Link Info: Trend Chart .................................................... 37Figure 15 Station Mode: Site Survey ..................................................................... 37Figure 16 Station Mode: Security Settings: WEP ................................................. 39Figure 17 Station Mode: Security Settings: WPA-PSK/WPA2-PSK ....................... 40Figure 18 Station Mode: Security Settings: WPA/WPA2 ........................................ 41Figure 19 Station Mode: Security Settings: 802.1x ................................................ 42Figure 20 Confirm Save Screen ............................................................................ 43Figure 21 Station Mode: Profile ............................................................................ 45Figure 22 Station Mode: Profile: Add a New Profile .............................................. 46Figure 23 Station Mode: Profile: Select a Channel ............................................... 47Figure 24 Station Mode: Profile: Wireless Settings ............................................... 48Figure 25 Station Mode: Profile: Security Settings ................................................ 49Figure 26 Station Mode: Profile: Confirm New Settings ........................................ 49Figure 27 Station Mode: Profile: Activate the Profile ............................................. 50Figure 28 Station Mode: Adapter .......................................................................... 50Figure 29 Access Point Mode: Link Info ................................................................ 54Figure 30 Access Point Mode: Configuration ........................................................ 55Figure 31 Access Point Mode: MAC Filter ............................................................ 57Figure 32 About ..................................................................................................... 59Figure 33 Uninstall: Confirm ................................................................................. 60Figure 34 Uninstall: Finish ..................................................................................... 60Figure 35 Windows 2000: Start ............................................................................. 67Figure 36 Windows 2000: Network and Dial-up Connections ............................... 68Figure 37 Windows 2000: Network Properties ...................................................... 68Figure 38 WIndows 2000: Network Properties: Select Network Adapter .............. 69
ZyXEL G-220 v2 User’s Guide14 List of FiguresFigure 39 Windows 2000: Local Network .............................................................. 69Figure 40 Windows XP: System Tray Icon ............................................................. 71Figure 41 Windows XP SP1: Wireless Network Connection .................................. 72Figure 42 Windows XP SP2: Wireless Network Connection .................................. 72Figure 43 Windows XP SP1: Wireless Network Connection Properties ................ 73Figure 44 Windows XP SP2: Wireless Network Connection Properties ................ 73Figure 45 Windows XP SP1: Wireless Network Connection Status ....................... 74Figure 46 Windows XP SP2: Wireless Network Connection Status ....................... 74Figure 47 Windows XP SP1: Wireless Network Connection Properties ................ 75Figure 48 Windows XP SP2: Wireless Network Connection Properties ................ 75Figure 49 Windows XP SP2: WZC Not Available .................................................. 77Figure 50 Windows XP SP2: System Tray Icon ..................................................... 78Figure 51 Windows XP SP2: Wireless Network Connection Status ....................... 78Figure 52 Windows XP SP1: Wireless Network Connection Status ....................... 79Figure 53 Windows XP SP2: Wireless Network Connection .................................. 79Figure 54 Windows XP SP1: Wireless Network Connection Properties ................ 80Figure 55 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK .. 81Figure 56 Windows XP SP2: Wireless Network Connection: No Security ............ 81Figure 57 Windows XP: Wireless (network) properties: Association ..................... 82Figure 58 Windows XP: Wireless (network) properties: Authentication ................. 83Figure 59 Windows XP: Protected EAP Properties ................................................ 84Figure 60 Windows XP: Smart Card or other Certificate Properties ...................... 85Figure 61 Windows XP SP2: Wireless Networks: Preferred Networks .................. 87Figure 62 Windows XP SP1: Wireless Networks: Preferred Networks .................. 87Figure 63 WPA-PSK Authentication ....................................................................... 93Figure 64 WPA(2) with RADIUS Application Example ........................................... 93Figure 65 WIndows 95/98/Me: Network: Configuration .......................................... 96Figure 66 Windows 95/98/Me: TCP/IP Properties: IP Address .............................. 97Figure 67 Windows 95/98/Me: TCP/IP Properties: DNS Configuration ................. 98Figure 68 Windows XP: Start Menu ....................................................................... 99Figure 69 Windows XP: Control Panel ................................................................... 99Figure 70 Windows XP: Control Panel: Network Connections: Properties ............ 100Figure 71 Windows XP: Local Area Connection Properties ................................... 100Figure 72 Windows XP: Advanced TCP/IP Settings .............................................. 101Figure 73 Windows XP: Internet Protocol (TCP/IP) Properties .............................. 102Figure 74 Macintosh OS 8/9: Apple Menu ............................................................. 103Figure 75 Macintosh OS 8/9: TCP/IP ..................................................................... 103Figure 76 Macintosh OS X: Apple Menu ................................................................ 104Figure 77 Macintosh OS X: Network ...................................................................... 105
ZyXEL G-220 v2 User’s GuideList of Tables 15List of TablesTable 1 ZyXEL Utility: System Tray Icon ............................................................... 22Table 2 ZyXEL Utility: Menu Screen Summary ..................................................... 26Table 3 Station Mode: Link Info ............................................................................. 36Table 4 Station Mode: Link Info: Trend Chart ........................................................ 37Table 5 Station Mode: Site Survey ........................................................................ 38Table 6 Station Mode: Security Settings: WEP ..................................................... 39Table 7 Station Mode: Security Settings: WPA-PSK/WPA2-PSK .......................... 41Table 8 Station Mode: Security Settings: WPA/WPA2 ........................................... 41Table 9 Station Mode: Security Settings: 802.1x ................................................... 42Table 10 Confirm Save Screen ............................................................................. 44Table 11 Station Mode: Profile ............................................................................... 45Table 12 Station Mode: Profile: Add a New Profile ................................................ 46Table 13 Station Mode: Profile: Select a Channel ................................................. 48Table 14 Station Mode: Adapter ............................................................................ 50Table 15 Access Point Mode: Link Info ................................................................. 54Table 16 Access Point Mode: Configuration ......................................................... 55Table 17 Access Point Mode: MAC Filter .............................................................. 57Table 18 About ...................................................................................................... 59Table 19 Troubleshooting Starting ZyXEL Utility Program .................................... 63Table 20 Troubleshooting Access Point Connection Problem ............................... 63Table 21 Troubleshooting Link Quality .................................................................. 64Table 22 Troubleshooting Communication Problem .............................................. 64Table 23 Product Specifications ............................................................................ 65Table 24 Windows XP SP2: System Tray Icon ...................................................... 78Table 25 Windows XP SP2: Wireless Network Connection .................................. 80Table 26 Windows XP: Wireless Networks ........................................................... 81Table 27 Windows XP: Wireless (network) properties: Association ...................... 82Table 28 Windows XP: Wireless (network) properties: Authentication .................. 83Table 29 Windows XP: Protected EAP Properties ................................................ 85Table 30 Windows XP: Smart Card or other Certificate Properties ....................... 86Table 31 Comparison of EAP Authentication Types .............................................. 90Table 32 Wireless Security Relational Matrix ........................................................ 94
ZyXEL G-220 v2 User’s Guide16 List of Tables
ZyXEL G-220 v2 User’s GuidePreface 17PrefaceCongratulations on your purchase of the ZyXEL G-220 v2 802.11g WLAN USB Adapter. Your ZyXEL G-220 v2 is easy to install and configure. About This User's GuideThis manual is designed to guide you through the configuration of your ZyXEL G-220 v2 for its various applications. Related Documentation• Supporting DiskRefer 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 Glossary and Web SitePlease refer to www.zyxel.com for an online glossary of networking terms and additional support documentation.User Guide Feedback Help us help you. E-mail all User Guide-related comments, questions or suggestions for improvement to techwriters@zyxel.com.tw or send regular mail to The Technical Writing Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 300, Taiwan. Thank you. Syntax Conventions• “Enter” means for you to type one or more characters. “Select” or “Choose” means for you to use one predefined choice.• Mouse action sequences are denoted using a comma. For example, “In Windows, click Start, Settings and then Control Panel” means first click the Start button, then point your mouse pointer to Settings and then click Control Panel.• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.• The ZyXEL G-220 v2 802.11g WLAN USB Adapter may be referred to as the ZyXEL G-220 v2 in this user’s guide.
ZyXEL G-220 v2 User’s Guide18 PrefaceGraphics Icons KeyWireless Access Point Computer Notebook Computer Server Modem Wireless Signal Telephone Switch Router Internet Cloud
ZyXEL G-220 v2 User’s GuideChapter 1 Getting Started 19CHAPTER 1Getting StartedThis chapter introduces the ZyXEL G-220 v2 and prepares you to use the ZyXEL Utility.1.1 About Your ZyXEL G-220 v2 The ZyXEL G-220 v2 is an IEEE 802.11g compliant wireless LAN adapter. The following lists the main features of your ZyXEL G-220 v2. See the product specifications in the appendix for detailed features.• Automatic rate selection.• Security: WEP (Wired Equivalent Privacy), IEEE 802.1x, WPA-PSK, WPA (Wi-Fi Protected Access), WPA2-PSK and WPA2 • Proprietary SoftAP feature turns your ZyXEL G-220 v2 into an access point (AP).• A built-in antenna• Driver and utility support for Windows 98 Second Edition, Windows ME, Windows 2000 and Windows XP.1.1.1 Application OverviewThis section describes some network applications for the ZyXEL G-220 v2. 1.1.1.1 Infrastructure To connect to a network via an Access Point (AP), set the ZyXEL G-220 v2 network type to Infrastructure. Through the AP, you can access the Internet or the wired network behind the AP.
ZyXEL G-220 v2 User’s Guide20 Chapter 1 Getting StartedFigure 1 Application: Infrastructure 1.1.1.2 Ad-Hoc In case you prefer to set up a small independent wireless workgroup without an AP, use the Ad-Hoc mode.Ad-hoc mode does not require an AP or a wired network. Two or more wireless clients communicate directly to each other. Figure 2 Application: Ad-Hoc
ZyXEL G-220 v2 User’s GuideChapter 1 Getting Started 211.1.1.3 Access Point Mode You can set the ZyXEL G-220 v2 in access point mode. The following figure shows a network example.Figure 3 Application: Access Point Mode In the example, the ZyXEL G-220 v2 is installed on computer A and set to operate in access point mode. Computer A shares Internet connection to the wireless LAN, so wireless stations B and C can access the Internet.1.2 ZyXEL G-220 v2 Hardware and Utility InstallationFollow the instructions in the Quick Start Guide to install the ZyXEL Utility and make hardware connections.1.3 Configuration Methods To configure your ZyXEL G-220 v2, use one of the following applications:• Wireless Zero Configuration (WZC) (recommended for Windows XP)• ZyXEL Utility (required when you want to use the ZyXEL G-220 v2 as an access point)• Odyssey Client Manager (not supplied) Note: Do NOT use the Windows XP configuration tool or the Odyssey Client Manager and the ZyXEL Utility at the same time.Refer to the Odyssey Client Manager documentation for more information.1.4 Windows XP Users Only Note: When you use the ZyXEL Utility, it automatically disables the Windows XP wireless configuration tool. Refer to the appendices on how to use WZC to manage the ZyXEL G-220 v2.
ZyXEL G-220 v2 User’s Guide22 Chapter 1 Getting Started1.5 Accessing the ZyXEL Utility After you install and start the ZyXEL Utility, an icon for the ZyXEL Utility appears in the system tray.Note: When the ZyXEL Utility system tray icon displays, the ZyXEL G-220 v2 is installed properly.When you use the ZyXEL Utility, it automatically disables the Windows XP wireless configuration tool.Figure 4 ZyXEL Utility: System Tray Icon The color of the ZyXEL Utility system tray icon indicates the status of the ZyXEL G-220 v2. Refer to the following table for details. 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. Note: Click the icon (located in the top right corner) to display the on-line help window.1.6 Connecting to a Wireless LAN This section shows you how to associate with a network using the ZyXEL Utility. You can either manually connect to a network or configure a profile to have the ZyXEL G-220 v2 automatically connect to a specific network. Otherwise, configure nothing and leave the ZyXEL G-220 v2 to automatically scan for and connect to any other available network without security.See the next chapters for detailed field descriptions.Table 1 ZyXEL Utility: System Tray Icon COLOR DESCRIPTIONRed The ZyXEL G-220 v2 is operating in wireless station mode but is not connected to a wireless network.Green The ZyXEL G-220 v2 is operating in wireless station mode and connected to a wireless network.Pale Blue The ZyXEL G-220 v2 is operating in access point mode.
ZyXEL G-220 v2 User’s GuideChapter 1 Getting Started 231.6.1 Site Survey After you install the ZyXEL Utility and then insert the ZyXEL G-220 v2, follow the steps below to connect to a network using the Site Survey screen.1Make sure a wireless network is available and within range.2Open the ZyXEL Utility and click the Site Survey tab to open the screen as shown next.3Click Scan to search for available wireless networks.Figure 5 ZyXEL Utility: Site Survey 4To join a network, either click an SSID in the table and then click Connect or double-click an SSID. 5If the wireless security is activated for the selected wireless network, the Security Setting screen displays. This screen varies according to the network’s encryption method. Configure the same security settings as the associated network.Note: If the selected network is unavailable or the security settings are not correct, the ZyXEL G-220 v2 cannot connect to a network.
ZyXEL G-220 v2 User’s Guide24 Chapter 1 Getting StartedFigure 6 ZyXEL Utility: Security Setting 6Verify that you have successfully connected to the selected network and check the network information in the Link Info screen. If the ZyXEL G-220 v2 is not connected to a network, the fields in this screen are blank.Figure 7 ZyXEL Utility: Link Info 1.7 ZyXEL G-220 v2 Modes You can set your ZyXEL G-220 v2 to operate in either wireless station or access point (AP) modes. In wireless station mode, your ZyXEL G-220 v2 must connect to a peer wireless station or an AP to take part in your wireless network.
ZyXEL G-220 v2 User’s GuideChapter 1 Getting Started 25In access point mode, your ZyXEL G-220 v2 functions as an access point. This allows you to set up your wireless network without using a dedicated AP device. Up to 16 wireless stations can associate to the ZyXEL G-220 v2 to form a wireless network. Refer to Section 1.7.1 on page 25 and Chapter 4 on page 53 for more information.Note: With WZC, you cannot use the ZyXEL G-220 v2 as an access point.1.7.1 Change ZyXEL G-220 v2 Mode To change between the modes, select either the Station Mode or AP Mode option in any ZyXEL Utility screens.Figure 8 ZyXEL Utility: Change ModesNote: 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.1.8 ZyXEL Utility Screen Summary This sections describes the ZyXEL Utility screens.
ZyXEL G-220 v2 User’s Guide26 Chapter 1 Getting StartedFigure 9 Menu Summary: Station Mode Figure 10 Menu Summary: AP Mode The following table describes the menus. Table 2 ZyXEL Utility: Menu Screen SummaryTAB DESCRIPTIONStation ModeLink Info Use this screen to see your current connection status, configuration and data rate statistics.Site Survey Use this screen to • scan for a wireless network• configure wireless security (if activated on the selected network).• connect to a wireless network.Profile Use this screen to add, delete, edit or activate a profile with a set of wireless and security settings.Adaptor Use this screen to configure a transfer rate, enable power saving and use OTIST (One-Touch Intelligent Security Technology).AP ModeLink Info Use this screen to see your current connection status, configuration and data rate statistics.Configuration Use this screen to configure wireless LAN settings. MAC Filter Use this screen to configure which computer(s) you want access to the wireless LAN through the ZyXEL G-220 v2.
ZyXEL G-220 v2 User’s GuideChapter 2 Wireless LAN Network 27CHAPTER 2Wireless LAN NetworkThis chapter provides background information on wireless LAN network.2.1 Wireless LAN Overview This section describes the wireless LAN network terms and applications.2.1.1 SSIDThe SSID (Service Set Identity) is a unique name shared among all wireless devices in a wireless network. Wireless devices must have the same SSID to communicate with each other.2.1.2 ChannelA radio frequency used by a wireless device is called a channel.2.1.3 Transmission Rate (Tx Rate)The ZyXEL G-220 v2 provides various transmission (data) rate options for you to select. Options include Fully Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 6 Mbps, 9 Mbps, 11 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps and 54 Mbps. In most networking scenarios, the factory default Fully Auto setting proves the most efficient. This setting allows your ZyXEL G-220 v2 to operate at the maximum transmission (data) rate. When the communication quality drops below a certain level, the ZyXEL G-220 v2 automatically switches to a lower transmission (data) rate. Transmission at lower data speeds is usually more reliable. However, when the communication quality improves again, the ZyXEL G-220 v2 gradually increases the transmission (data) rate again until it reaches the highest available transmission rate. You can select any of the above options. If you wish to balance speed versus reliability, select 54 Mbps in a networking environment where you are certain that all wireless devices can communicate at the highest transmission (data) rate. 1 Mbps or 2 Mbps are used often in networking environments where the range of the wireless connection is more important than speed. Note: With USB1.0/1.1, the ZyXEL G-220 v2 can only transmit at up to 11Mbps.2.2 Wireless LAN Security Overview Wireless LAN security is vital to your network to protect wireless communications.
ZyXEL G-220 v2 User’s Guide28 Chapter 2 Wireless LAN NetworkConfigure the wireless LAN security using the Configuration or the Profile Security Setting screen. If you do not enable any wireless security on your ZyXEL G-220 v2, the ZyXEL G-220 v2’s wireless communications are accessible to any wireless networking device that is in the coverage area.2.2.1 Data Encryption with WEPWEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between the ZyXEL G-220 v2 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 ZyXEL G-220 v2.• 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 Setting 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 ZyXEL G-220 v2 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.2.2.2 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.2.2.2.1 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 ZyXEL G-220 v2 supports EAP-TLS and EAP-PEAP. Refer to Appendix E on page 89 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). 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.
ZyXEL G-220 v2 User’s GuideChapter 2 Wireless LAN Network 292.2.3 WPA(2) 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 WPA2.2.2.3.1 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.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).2.2.3.2 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.2.2.4 WPA(2)-PSK Application ExampleA WPA(2)s-PSK application looks as follows.
ZyXEL G-220 v2 User’s Guide30 Chapter 2 Wireless LAN Network1First 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).2The AP checks each client's password and (only) allows it to join the network if it matches its password.3The AP and wireless clients use the pre-shared key to generate a common PMK.4The AP and wireless clients use the TKIP or AES encryption process to encrypt data exchanged between them.Figure 11 WPA-PSK Authentication2.2.5 WPA(2) with RADIUS Application ExampleYou 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.1The AP passes the wireless client's authentication request to the RADIUS server.2The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly.3The 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.
ZyXEL G-220 v2 User’s GuideChapter 2 Wireless LAN Network 31Figure 12 WPA(2) with RADIUS Application Example2.3 Encryption Type The IEEE 802.11b/g standard describes a simple encryption method between the wireless stations and AP. Three encryption types are defined: Auto, Open System and Shared Key.• Open System mode is implemented for ease-of-use and when security is not an issue. The wireless station and the AP do not share a secret key. Thus the wireless stations can associate with any AP and listen to any data transmitted plaintext.• Shared Key mode involves a shared secret key to authenticate the wireless station to the AP. This requires you to enable the wireless LAN security and use same settings on both the wireless station and the AP.• Auto authentication mode allows the ZyXEL G-220 v2 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.2.4 Preamble TypePreamble is used to signal that data is coming to the receiver. 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 Long preamble if you are unsure what preamble mode the wireless adapters support, and to provide more reliable communications in busy wireless networks. Select Short preamble if you are sure the wireless adapters support it, and to provide more efficient communications.
ZyXEL G-220 v2 User’s Guide32 Chapter 2 Wireless LAN NetworkSelect Auto to have the ZyXEL G-220 v2 automatically use short preamble when all access point/wireless stations support it, otherwise the ZyXEL G-220 v2 uses long preamble. Note: The ZyXEL G-220 v2 and the access point/wireless stations MUST use the same preamble mode in order to communicate.2.5 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.2.5.1 Enabling OTISTYou must enable OTIST on both the AP and wireless client before you start transferring settings.We use the Prestige 334WT in this guide as an example. Screens may vary slightly for your ZyXEL devices.Note: The AP and wireless client(s) MUST use the same Setup key.2.5.1.1 APOn the Prestige 334WT, you can enable OTIST using the Reset button or the web configurator. If you use the Reset 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 Reset button for one or two seconds. Note: If you hold in the Reset button too long, the device will reset to the factory defaults!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 Ye s 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.
ZyXEL G-220 v2 User’s GuideChapter 2 Wireless LAN Network 33 2.5.1.2 Wireless ClientStart the ZyXEL Utility and click the Adapter tab. Select the OTIST check box, enter the same Setup Key as your AP’s and click Save.2.5.2 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.
ZyXEL G-220 v2 User’s Guide34 Chapter 2 Wireless LAN NetworkSee the user’s guide for more information. 2.5.3 Notes on OTIST1If you enabled OTIST in the wireless client, you see this screen each time you start the utility. Click Ye s for it to search for an OTIST-enabled AP.2If an OTIST-enabled wireless client loses its wireless connection for more than ten seconds, it will search for an OTIST-enabled AP for up to one minute. (If you manually have the wireless client search for an OTIST-enabled AP, there is no timeout; click Cancel in the OTIST progress screen to stop the search.)3When the wireless client finds an OTIST-enabled AP, you must still click Start in the AP OTIST web configurator screen or hold in the Reset button (for one or two seconds) for the AP to transfer settings.4If you change the SSID or the keys on the AP after using OTIST, you need to run OTIST again or enter them manually in the wireless client(s).5If you configure OTIST to generate a WPA-PSK key, this key changes each time you run OTIST. Therefore, if a new wireless client joins your wireless network, you need to run OTIST on the AP and ALL the wireless clients again.1In the AP, a web configurator screen pops up showing you the security settings to transfer. After reviewing the settings, click OK.2This screen appears while OTIST settings are being transferred. It closes when the transfer is complete. • In the wireless client, you see this screen if it can't find an OTIST-enabled AP (with the same Setup key). Click OK to go back to the ZyXEL utility main screen.• If there is more than one OTIST-enabled AP within range, you see a screen asking you to select one AP to get settings from.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 35CHAPTER 3Wireless Station ModeConfigurationThis chapter shows you how to configure your ZyXEL G-220 v2 in wireless station mode.3.1 Wireless Station Mode Overview To set your ZyXEL G-220 v2 in wireless station mode, refer to Section 1.7.1 on page 25.3.2 The Link Info Screen When the ZyXEL Utility starts, the Link Info screen displays, showing the current configuration and connection status of your ZyXEL G-220 v2.Figure 13 Station Mode: Link Info
ZyXEL G-220 v2 User’s Guide36 Chapter 3 Wireless Station Mode ConfigurationThe following table describes the labels in this screen. 3.2.1 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.Table 3 Station Mode: Link Info LABEL DESCRIPTIONAP ModeStation ModeUse the check box to set the ZyXEL G-220 v2 to operate in wireless station or access point mode. Refer to Section 1.7.1 on page 25 for more information.Wireless Network StatusProfile Name This is the name of the profile you are currently using.Network Name (SSID)The SSID identifies the Service Set to which a wireless station is associated. This field displays the name of the wireless device to which the ZyXEL G-220 v2 is associated.AP MAC Address This field displays the MAC address of the wireless device to which the ZyXEL G-220 v2 is associated.Network Type This field displays the network type (Infrastructure(BSS) or Ad Hoc) of the wireless network.Transmission Rate This field displays the current transmission rate of the ZyXEL G-220 v2 in megabits per second (Mbps).Security This field displays whether data encryption is activated (WEP (WEP or 802.1x), TKIP (WPA/WPA-PSK/WPA2/WPA2-PSK), AES (WPA/WPA-PSK/WPA2/WPA2-PSK)) or inactive (DISABLE).Channel This field displays the radio channel the ZyXEL G-220 v2 is currently using.Status This field displays the authentication type of the wireless network.StatisticsTransmit Rate This field displays the current data transmission rate in kilobits per second (Kbps).Receive Rate This field displays the current data receiving rate in kilobits per second (Kbps).Authentication This field displays the authentication method of the ZyXEL G-220 v2.Wireless Mode This field displays the wireless standard (B or G) of the wireless device. Total Transmit This field displays the total number of data frames transmitted.Total Receive This field displays the total number of data frames received.Signal Strength This field displays the signal strength of the ZyXEL G-220 v2.Trend Chart Click this button to display the real-time statistics of the data rate in kilobits per second (Kbps).Signal Strength The status bar shows the strength of the signal.Link Quality The status bar shows the quality of the signal.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 37Figure 14 Station Mode: Link Info: Trend Chart The following table describes the labels in this screen. 3.3 The Site Survey Screen Use the Site Survey screen to scan for and connect to a wireless network automatically.Figure 15 Station Mode: Site Survey Table 4 Station Mode: Link Info: Trend Chart LABEL DESCRIPTIONTransmit This field displays the current data transmission rate in kilobits per second (Kbps).Receive This field displays the current data receiving rate in kilobits per second (Kbps).
ZyXEL G-220 v2 User’s Guide38 Chapter 3 Wireless Station Mode ConfigurationThe following table describes the labels in this screen. 3.3.1 Connecting to a WLAN NetworkFollow the steps below to connect to a WLAN network using the Site Survey screen.1Click Scan to search for all available wireless networks within range.2To join a network, click an entry in the table to select a wireless network and then click Connect or double-click an entry. 3If the wireless security is activated for the selected wireless network, the Security Setting screen displays. You must set the related fields in the Security Setting screen to the same security settings as the associated wireless device. Refer to Section 3.3.2 on page 39 for more information.Otherwise click the Exit button and connect to another wireless network without data encryption.4Verify that you have successfully connected to the selected network and check the network information in the Link Info screen.Table 5 Station Mode: Site Survey LABEL DESCRIPTIONAvailable Network ListClick a column heading to sort the entries.,, ordenotes that the wireless device is in infrastructure mode and the wireless security is activated.denotes that the wireless device is in infrastructure mode but the wireless security is deactivated.denotes that the wireless device is in Ad-Hoc mode and the wireless security is activated.denotes that the wireless device is in Ad-Hoc mode but the wireless security is deactivated.SSID This field displays the SSID (Service Set IDentifier) of each wireless device.Channel This field displays the channel number used by each wireless device.Signal This field displays the signal strength of each wireless device.Scan Click Scan to search for available wireless devices within transmission range.Connect Click Connect to associate to the selected wireless device.Site Info Click an entry in the Available Network List table to display the information of the selected wireless device.Network Type This field displays the network type (Infrastructure or Ad Hoc) of the wireless device.Channel This field displays the channel number used by each wireless device.Encryption This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA, WPA-PSK, WPA2, WPA2-PSK) or inactive (Disabled).MAC address This field displays the MAC address of the wireless device.Surveyed at This field displays the time when the wireless device is scanned.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 393.3.2 Security Settings When you configure the ZyXEL G-220 v2 to connect to a network with wireless security activated and the security settings are disabled on the ZyXEL G-220 v2, the screen varies according to the encryption method used by the selected network.3.3.2.1 WEP EncryptionFigure 16 Station Mode: Security Settings: WEP The following table describes the labels in this screen. Table 6 Station Mode: Security Settings: WEP LABEL DESCRIPTIONSecurity SettingsWEP Select 64 Bits, 128 Bits or 256 Bits to activate WEP encryption and then fill in the related fields.Select Disable to deactivate WEP encryption.Encryption Type Select an encryption type. Choices are SHARED and OPEN. Refer to Section 2.3 on page 31 for more information.Pass Phrase Enter a passphrase of up to 63 case-sensitive printable characters. As you enter the passphrase, the ZyXEL G-220 v2 automatically generates four different WEP keys and displays it in the key field below. Refer to Section 2.2.1 on page 28 for more information.At the time of writing, you cannot use passphrase to generate 256-bit WEP keys.Transmit Key Select a default WEP key to use for data encryption. The key displays in the field below.
ZyXEL G-220 v2 User’s Guide40 Chapter 3 Wireless Station Mode Configuration3.3.2.2 WPA-PSK/WPA2-PSKFigure 17 Station Mode: Security Settings: WPA-PSK/WPA2-PSKKey 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.orEnter 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 typeorEnter 13 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9” (for example, MyKey12345678) for ASCII key type.If you select 256 Bits in the WEP field, Enter either 58 hexadecimal digits in the range of "A-F", "a-f" and "0-9" (for example, 0000111122223333444455556666777788889999AAAABBBBCCCC000011) for HEX key type or Enter 29 ASCII characters (case sensitive) ranging from "a-z", "A-Z" and "0-9" (for example, MyKey111122223333444455556678) for ASCII key type.Note: The values for the WEP keys must be set up exactly the same on all wireless devices in the same wireless LAN.ASCII WEP keys are case sensitive.Back Click Back to go to the Site Survey screen to select and connect to another network.Next Click Next to confirm your selections and advance to the Confirm Save screen. Refer to Section 3.3.3 on page 43. Exit Click Exit to return to the Site Survey screen without saving.Table 6 Station Mode: Security Settings: WEP (continued)LABEL DESCRIPTION
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 41The following table describes the labels in this screen. 3.3.2.3 WPA/WPA2Figure 18 Station Mode: Security Settings: WPA/WPA2The following table describes the labels in this screen. Table 7 Station Mode: Security Settings: WPA-PSK/WPA2-PSKLABEL DESCRIPTIONEncryption 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 2.2.3 on page 29 for more information.Pre-Shared Key Type a pre-shared key (same as the AP or peer device) of between 8 and 63 case-sensitive ASCII characters (including spaces and symbols) or 64 hexadecimal characters.Back Click Back to go to the Site Survey screen to select and connect to another network.Next Click Next to confirm your selections and advance to the Confirm Save screen. Refer to Section 3.3.3 on page 43. Exit Click Exit to return to the Site Survey screen without saving.Table 8 Station Mode: Security Settings: WPA/WPA2LABEL DESCRIPTIONEncryption 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 2.2.3 on page 29 for more information.Authentication TypeSelect an authentication method from the drop down list. Options are TLS and PEAP.Login Name Enter a user name. This is the user name that you or an administrator set up on a RADIUS server.
ZyXEL G-220 v2 User’s Guide42 Chapter 3 Wireless Station Mode Configuration3.3.2.4 IEEE 802.1xConfigure IEEE 802.1x security with various authentication methods in this screen. Figure 19 Station Mode: Security Settings: 802.1xThe following table describes the labels in this screen. Password This field is not available when you select TLS in the Authentication Type field. Enter the password associated with the user name above. Certificate This field is only available when you select TLS in the Authentication Type field. Select a certificate from the drop-down list box.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 CertificateSelect 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 protocol is MS CHAP v2.Back Click Back to go to the Site Survey screen to select and connect to another network.Next Click Next to confirm your selections and advance to the Confirm Save screen. Refer to Section 3.3.3 on page 43. Exit Click Exit to return to the Site Survey screen without saving.Table 8 Station Mode: Security Settings: WPA/WPA2LABEL DESCRIPTIONTable 9 Station Mode: Security Settings: 802.1xLABEL DESCRIPTIONAuthentication TypeSelect an authentication method from the drop down list. Options are TLS and PEAP.Login Name Enter a user name. This is the user name that you or an administrator set up on a RADIUS server.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 433.3.3 Confirm Save ScreenUse the Confirm Save screen to confirm and save the security settings.Figure 20 Confirm Save Screen Password This field is not available when you select TLS in the Authentication Type field. Enter the password associated with the user name above. Certificate This field is only available when you select TLS in the Authentication Type field. Select a certificate from the drop-down list box.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 CertificateSelect 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 protocol is MS CHAP v2.Back Click Back to go to the Site Survey screen to select and connect to another network.Next Click Next to confirm your selections and advance to the Confirm Save screen. Refer to Section 3.3.3 on page 43. Exit Click Exit to return to the Site Survey screen without saving.Table 9 Station Mode: Security Settings: 802.1xLABEL DESCRIPTION
ZyXEL G-220 v2 User’s Guide44 Chapter 3 Wireless Station Mode ConfigurationThe following table describes the labels in this screen. 3.4 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 ZyXEL G-220 v2, 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 ZyXEL G-220 v2 cannot connect to a network.If you do not configure and activate a profile, each time you start the ZyXEL G-220 v2, the ZyXEL G-220 v2 uses the default profile to connect to any available network with security disabled. The default profile is a profile that allows you to connect to any SSID without security. 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.Table 10 Confirm Save ScreenLABEL DESCRIPTIONSecurity SettingNetwork Name This field displays the SSID previously entered.Network Type This field displays the network type (Infrastructure or Ad Hoc) of the wireless device.Channel This field displays the channel number used by the profile.Security This field shows whether data encryption is activated (WEP, WPA, WPA2, WPA-PSK, WPA2-PSK or 802.1x) or inactive (Disabled).Back Click Back to return to the previous screen.Save Click Save to save the changes back to the ZyXEL G-220 v2 and display the Link Info screen. Exit Click Exit to discard changes and return to the Site Survey screen.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 45Figure 21 Station Mode: Profile The following table describes the labels in this screen. Table 11 Station Mode: Profile LABEL DESCRIPTIONProfile List Click a column heading to sort the entries.,, ordenotes that the wireless device is in infrastructure mode and the wireless security is activated.denotes that the wireless device is in infrastructure mode but the wireless security is deactivated.denotes that the wireless device is in Ad-Hoc mode and the wireless security is activated.denotes that the wireless device is in Ad-Hoc mode but the wireless security is deactivated.Profile Name This is the name of the pre-configured profile.SSID This is the SSID of the wireless network to which the selected profile associate.Connect To use a previously saved network profile, select a pre-configured profile name in the table and click Connect.Add To add a new profile into the table, click Add.Delete To delete an existing wireless network configuration, select a profile in the table and click Delete.Edit To edit an existing wireless network configuration, select a profile in the table and click Edit.Profile Info The following fields display detail information of the selected profile in the Profile List table.Network Type This field displays the network type (Infrastructure or Ad Hoc) of the profile.SSID This field displays the SSID (Service Set IDentifier) of the profile.Channel This field displays the channel number used by the profile.
ZyXEL G-220 v2 User’s Guide46 Chapter 3 Wireless Station Mode Configuration3.4.1 Adding a New ProfileFollow the steps below to add a new profile.1Click Add in the Profile screen. An Add New Profile screen displays as shown next. Click Next to continue.Figure 22 Station Mode: Profile: Add a New Profile The following table describes the labels in this screen. Security This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA, WPA-PSK, WPA2, WPA2-PSK) or inactive (DISABLE).Transmission Rate This field displays the transmission speed of the selected profile in megabits per second (Mbps).Table 11 Station Mode: Profile (continued)LABEL DESCRIPTIONTable 12 Station Mode: Profile: Add a New Profile LABEL DESCRIPTIONAdd New ProfileProfile Name Enter a descriptive name in this field.SSID Select an available wireless device in the Scan Info table and click Select, or enter the SSID of the wireless device to which you want to associate in this field manually. Otherwise, enter Any to have the ZyXEL G-220 v2 associate to any AP or roam between any infrastructure wireless networks.Network Type Select the Infrastructure radio button to associate to an AP. Select the Ad-Hoc radio button to associate to a peer computer.Next Click Next to go to the next screen.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 472If 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.Note: To associate to an ad-hoc network, you must use the same channel as the peer computer.Figure 23 Station Mode: Profile: Select a Channel Exit Click Exit to go back to the previous screen without saving.Scan Info This table displays the information of the available wireless networks within the transmission range.,, ordenotes that the wireless device is in infrastructure mode and the wireless security is activated.denotes that the wireless device is in infrastructure mode but the wireless security is deactivated.denotes that the wireless device is in Ad-Hoc mode and the wireless security is activated.denotes that the wireless device is in Ad-Hoc mode but the wireless security is deactivated.SSID This field displays the SSID (Service Set IDentifier) of each wireless device.Scan Click Scan to search for available wireless devices within transmission range.Select Select an available wireless device in the table and click Select to add it to this profile.Whenever you activate this profile, the ZyXEL G-220 v2 associates to the selected wireless network only.Table 12 Station Mode: Profile: Add a New Profile (continued)LABEL DESCRIPTION
ZyXEL G-220 v2 User’s Guide48 Chapter 3 Wireless Station Mode ConfigurationThe following table describes the labels in this screen. 3If you select 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 select Ad-Hoc network type in the first screen, you can only use WEP encryption method. Otherwise, select DISABLE to allow the ZyXEL G-220 v2 to communicate with the access points or other peer wireless computers without any data encryption and skip to step 5.Figure 24 Station Mode: Profile: Wireless Settings 4The screen varies depending on the encryption method you select in the previous screen. The settings must be exactly the same on the APs or other peer wireless computers as they are on the ZyXEL G-220 v2. Refer to Section 3.3.2 on page 39 for detailed information on wireless security configuration.Table 13 Station Mode: Profile: Select a Channel LABEL DESCRIPTIONWireless SettingsChannel 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.
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 49Figure 25 Station Mode: Profile: Security Settings 5This read-only screen shows a summary of the new profile settings. Verify that the settings are correct. Click Save to save and go to the next screen. Click Back to return to the previous screen. Otherwise, click Exit to go back to the Profile screen without saving.Figure 26 Station Mode: Profile: Confirm New Settings 6To use this network profile, click the Activate Now button. Otherwise, click the Activate Later button. Note: Once you activate a profile, the ZyXEL Utility will use that profile the next time it is started.
ZyXEL G-220 v2 User’s Guide50 Chapter 3 Wireless Station Mode ConfigurationFigure 27 Station Mode: Profile: Activate the Profile 3.5 The Adapter Screen To set the advanced features on the ZyXEL G-220 v2, click the Adapter tab.Figure 28 Station Mode: Adapter The following table describes the labels in this screen. Table 14 Station Mode: Adapter LABEL DESCRIPTIONAdapter SettingTransmission Rate Select a transmission speed from the drop-down list box. Choose from Fully Auto (default), 1 Mbps, 2 Mbps, 5.5 Mbps, 6 Mbps, 9 Mbps, 11 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps, and 54 Mbps.Preamble Type Select a preamble type. Choices are Long, Short and Auto.The default setting is Auto. Refer to Section 2.4 on page 31 for more information
ZyXEL G-220 v2 User’s GuideChapter 3 Wireless Station Mode Configuration 51Power Saving ModeSelect Maximum Power Save or Fast Power Save to save power (especially for notebook computers). This forces the ZyXEL G-220 v2 to go to sleep mode when it is not transmitting data.When you select Continuous Access Mode, the ZyXEL G-220 v2 will never go to sleep mode.OTIST (One-Touch Intelligent Security Technology)Select this check box to enable OTIST.Setup Key Enter the same setup key (up to eight printable characters) as the ZyXEL AP or wireless router to which you want to associate. The default OTIST setup key is "01234567". Note: If you change the OTIST setup key on the ZyXEL AP or wireless router, you must also make the same change here.Start Click Start to encrypt the wireless security data using the setup key and have the ZyXEL AP or wireless router set your ZyXEL G-220 v2 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 at the same time. The process takes three minutes to completeSave Click Save to save the changes back to the ZyXEL G-220 v2 and return to the Link Info screen.Table 14 Station Mode: Adapter (continued)LABEL DESCRIPTION
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ZyXEL G-220 v2 User’s GuideChapter 4 Access Point Mode Configuration 53CHAPTER 4Access Point ModeConfigurationThis chapter shows you how to configure your ZyXEL G-220 v2 in access point mode.4.1 Access Point Mode Introduction To set your ZyXEL G-220 v2 as an Access Point (AP), refer to Section 1.7.1 on page 25.In access point mode, your ZyXEL G-220 v2 functions as an access point. This allows you to set up your wireless networks without using a dedicated AP device. Up to 16 wireless stations can associate to the ZyXEL G-220 v2.4.1.1 Additional Setup RequirementsTo bridge your wired and wireless network using the ZyXEL G-220 v2, the following requirements must be met:1The ZyXEL G-220 v2 must be installed on a computer connected to the wired network.2Either 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 67 for an example).3Set 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 ZyXEL G-220 v2. Refer to Appendix F on page 95.4.2 The Link Info Screen Select AP Mode and wait for about five seconds to display the screen as shown.
ZyXEL G-220 v2 User’s Guide54 Chapter 4 Access Point Mode ConfigurationFigure 29 Access Point Mode: Link Info The following table describes the labels in this screen. 4.3 The Configuration Screen Click Configuration in the ZyXEL Utility screen to display the screen as shown.Table 15 Access Point Mode: Link Info LABEL DESCRIPTIONStatusSSID This field displays the name that identifies your ZyXEL G-220 v2 in the wireless LAN network.Current Channel This field displays the radio channel the ZyXEL G-220 v2 is currently using.Transmission Rate This field displays the current transmission rate of the ZyXEL G-220 v2 in megabits per second (Mbps).Security This field shows whether data encryption is activated (WEP) or inactive (Disable).MAC This field displays the MAC address of the ZyXEL G-220 v2.Output Power This field shows the strength of the ZyXEL G-220 v2’s antenna gain or transmission power.Association List This table lists up to 16 wireless clients that are currently connected to the ZyXEL G-220 v2. denotes a wireless client without WEP security. denotes a wireless client with WEP security enabled. MAC Address This field displays the MAC addresses of a wireless client that is currently connected to the ZyXEL G-220 v2.Refresh Click Refresh to update this screen.
ZyXEL G-220 v2 User’s GuideChapter 4 Access Point Mode Configuration 55Figure 30 Access Point Mode: Configuration The following table describes the labels in this screen. Table 16 Access Point Mode: Configuration LABEL DESCRIPTIONWireless SettingsSSID The SSID identifies the service set to which a wireless station is associated. Wireless stations associating to the access point (the ZyXEL G-220 v2) must have the same SSID.Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN.Hide SSID Select this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain the SSID through passive scanning using a site survey tool.Channel Set the operating frequency/channel depending on your geographical region.Output Power Set this field if you need to conserve power consumption (especially for notebook computers). This control changes the strength of the ZyXEL G-220 v2’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 ZyXEL G-220 v2’s antenna to transmit at 17-dBm.Select Medium-High to set the ZyXEL G-220 v2’s antenna to transmit at 15-dBm.Select Medium-Low to set the ZyXEL G-220 v2’s antenna to transmit at 13-dBm.Select Low to set the ZyXEL G-220 v2’s antenna to transmit at 11-dBm. This allows for the least power consumption.Bridge This field is only applicable in Windows XP.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
ZyXEL G-220 v2 User’s Guide56 Chapter 4 Access Point Mode ConfigurationWEP Select 64 Bits, 128 Bits or 256 Bits to activate WEP encryption and then fill in the related fields. Select Disable to deactivate the WEP encryption.Authentication TypeSelect an authentication method. Choices are Auto, Shared Key and Open System. Refer to Section 2.3 on page 31 for more information.Pass Phrase When you select the radio button, enter a passphrase of up to 63 case-sensitive printable characters. As you enter the passphrase, the ZyXEL G-220 v2 automatically generates four different WEP key and displays it in the key field below. Refer to Section 2.2.1 on page 27 for more information.At the time of writing, you cannot use passphrase to generate 256-bit WEP keys.Transmit Key Select a default WEP key to use for data encryption. The key displays in the field below.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 typeorEnter 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 typeorEnter 13 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9” (for example, MyKey12345678) for ASCII key type.If you select 256 Bits in the WEP field, Enter either 58 hexadecimal digits in the range of "A-F", "a-f" and "0-9" (for example, 0000111122223333444455556666777788889999AAAABBBBCCCC000011) for HEX key type or Enter 29 ASCII characters (case sensitive) ranging from "a-z", "A-Z" and "0-9" (for example, MyKey111122223333444455556678) for ASCII key type.Note: The values for the WEP keys must be set up exactly the same on all wireless devices in the same wireless LAN.ASCII WEP keys are case sensitive.Save Click Save to save the changes.Cancel Click Cancel to discard the changes.Table 16 Access Point Mode: Configuration (continued)LABEL DESCRIPTION
ZyXEL G-220 v2 User’s GuideChapter 4 Access Point Mode Configuration 574.4 The MAC Filter Screen The MAC Filter screen allows you to configure the ZyXEL G-220 v2 to give exclusive access to (Accept) devices or exclude devices from (Reject) connecting to the ZyXEL G-220 v2. Every Ethernet device has a unique MAC (Media Access Control) address. 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.Figure 31 Access Point Mode: MAC Filter The following table describes the labels in this screen. Table 17 Access Point Mode: MAC Filter LABEL DESCRIPTIONFilter Type Define the filter action for the list of MAC addresses in the MAC address filter table.Select Disable to deactivate the MAC filter feature.Select Reject to block access to the ZyXEL G-220 v2, MAC addresses not listed will be allowed to access the ZyXEL G-220 v2.Select Accept to permit access to the ZyXEL G-220 v2, MAC addresses not listed will be denied access to the ZyXEL G-220 v2.Filter MAC Address 1-16Specify the MAC address(es) of the wireless station(s) that is allowed or denied association to the ZyXEL G-220 v2.Enter six pairs of hexadecimal digits (separated by colons) in the range of “A-F”, “a-f” and “0-9” (for example, 00:A0:C5:00:00:02).If you enter an invalid MAC address, once you click Save to save the values, a warning screen will be displayed.Save Click Save to save the changes back to the ZyXEL G-220 v2.Cancel Click Cancel to discard the changes.
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ZyXEL G-220 v2 User’s GuideChapter 5 Maintenance 59CHAPTER 5MaintenanceThis chapter describes how to uninstall or upgrade the ZyXEL Utility.5.1 The About Screen The About screen displays related version numbers of the ZyXEL G-220 v2. To display the screen as shown below, click the about ( ) button.Figure 32 About The following table describes the read-only fields in this screen. 5.2 Uninstalling the ZyXEL Utility Follow the steps below to remove (or uninstall) the ZyXEL Utility from your computer.1Click Start, (All) Programs, ZyXEL G-220 v2 Wireless Adapter Utility, Uninstall ZyXEL G-220 v2 Wireless Adapter Utility.2When prompted, click OK or Yes to remove the driver and the utility software.Table 18 About LABEL DESCRIPTIONDriver Version This field displays the version number of the ZyXEL G-220 v2 driver.Utility Version This field displays the version number of the ZyXEL Utility.
ZyXEL G-220 v2 User’s Guide60 Chapter 5 MaintenanceFigure 33 Uninstall: Confirm 3Click Finish to complete uninstalling the software and restart the computer when prompted.Figure 34 Uninstall: Finish 5.3 Upgrading the ZyXEL Utility Note: Before you uninstall the ZyXEL Utility, take note of the current network configuration.To perform the upgrade, follow the steps below.1Download the latest version of the utility from the ZyXEL web site and save the file on your computer.2Follow the steps in Section 5.2 on page 59 to remove the current ZyXEL Utility from your computer.3Restart your computer when prompted.4Disconnect the ZyXEL G-220 v2 from your computer.
ZyXEL G-220 v2 User’s GuideChapter 5 Maintenance 615Double-click on the setup program for the new utility to start the ZyXEL Utility installation.6Insert the ZyXEL G-220 v2 and check the version numbers in the About screen to make sure the new utility is installed properly.
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ZyXEL G-220 v2 User’s GuideChapter 6 Troubleshooting 63CHAPTER 6 TroubleshootingThis 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.6.1 Problems Starting the ZyXEL Utility Program6.2 Problem Connecting to an Access PointTable 19 Troubleshooting Starting ZyXEL Utility Program PROBLEM CORRECTIVE ACTIONCannot start the ZyXEL Wireless LAN UtilityMake sure the ZyXEL G-220 v2 is properly inserted and the LED(s) 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 ZyXEL G-220 v2 under Network Adapter. (Steps may vary depending on the version of Windows). Install the ZyXEL G-220 v2 in another computer.If the error persists, you may have a hardware problem. In this case, you should contact your local vendor.The ZyXEL Utility icon does not display.If you install the Funk Odyssey Client software on the computer, uninstall (remove) both the Funk Odyssey Client software and ZyXEL utility, and then install the ZyXEL utility again after restarting the computer.Table 20 Troubleshooting Access Point Connection Problem PROBLEM CORRECTIVE ACTION When using the Windows XP configuration tool, cannot scan for or connect to any access points.The ZyXEL G-220 v2 might still be operating in access point mode. This results when you set the ZyXEL G-220 v2 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 ZyXEL G-220 v2 to operate in station mode before you close and exit the ZyXEL Utility.
ZyXEL G-220 v2 User’s Guide64 Chapter 6 Troubleshooting6.3 Problem with the Link Status6.4 Problems Communicating With Other ComputersTable 21 Troubleshooting Link Quality PROBLEM CORRECTIVE ACTIONThe 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. Relocate or reduce the radio interference.Table 22 Troubleshooting Communication Problem PROBLEM CORRECTIVE ACTIONIn wireless station mode, the computer with the ZyXEL G-220 v2 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 ZyXEL G-220 v2 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.In Ad-Hoc (IBSS) Mode• Verify that the peer computer(s) is turned on.• Make sure the ZyXEL G-220 v2 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 ZyXEL G-220 v2.Verify that the computer with the ZyXEL G-220 v2 installed is turned on.Make sure the wireless station(s) uses the same SSID as the ZyXEL G-220 v2.Make sure the wireless station(s) uses the same security settings.Verify that the wireless station(s) is not blocked in the MAC Filter screen.
ZyXEL G-220 v2 User’s GuideAppendix A Product Specifications 65APPENDIX AProduct SpecificationsTable 23 Product Specifications PHYSICAL AND ENVIRONMENTALProduct Name ZyXEL G-220 v2 802.11g Wireless USB AdapterInterface USB 2.0 compatibleStandards IEEE 802.11bIEEE 802.11gNetwork Architectures InfrastructureAd-HocOperating Frequencies 2.412-2.484GHzOperating Channels IEEE 802.11b: 13 Channels (Europe)IEEE 802.11g: 13 Channels (Europe)IEEE 802.11b: 11 Channels (North America)IEEE 802.11g: 11 Channels (North America)IEEE 802.11b: 11 Channels (Taiwan)IEEE 802.11g: 11 Channels (Taiwan)Data Rate IEEE 802.11b: 11, 5.5, 2, 1MbpsIEEE 802.11g: 54, 48, 36, 24, 18, 12, 9, 6 MbpsModulation IEEE 802.11g: Orthogonal Frequency Division Multiplexing (64QAM, 16QAM, QPSK and BPSK)IEEE 802311b: PBCC, Direct Sequence Spread Spectrum (CCK, DQPSK, DBPSK).Security 64/128/256-bit WEPWPA/WPA-PSK/WPA2/WPA2-PSKIEEE 802.1xOperating Temperature 0 ~ 50 degrees CentigradeStorage Temperature -30 ~ 60 degrees CentigradeOperating Humidity 20 ~ 95% (non-condensing)Storage Humidity 20 ~ 95% (non-condensing)Power IEEE 802.11g: TX: 450mA RX: 345mAIEEE 802.11b: TX: 450mA RX: 345mAVoltage 5VWeight 25.8 gDimension (W) 95 mm × (D) 30 mm × (H) 16 mmRADIO SPECIFICATIONSMedia Access Protocol IEEE 802.11Frequency 2400-2483.5MHz (Industrial Scientific Medical Band)
ZyXEL G-220 v2 User’s Guide66 Appendix A Product SpecificationsChannels 1~11 Channels (USA, Canada)1~13 Channels (Europe)Data Rate IEEE 802.11g (OFDM): 6, 9, 12, 18, 24, 36, 48, 54 MbpsIEEE 802.11b: 1, 2, 5.5, 11 MbpsModulation IEEE 802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (OFDM)IEEE 802.11b: 11, 5.5 Mbps (CCK), 2 Mbps (DQPSK), 1 Mbps (DBPSK)Maximum Output Power 19 dBm at 11Mbps CCK, QPSK, BPSK22 dBm at 54Mbps OFDMRX Sensitivity IEEE 802.11g (OFDM): 54 Mbps: < -72 dBmIEEE 802.11b (CCK): 11 Mbps: < -85 dBmSOFTWARE SPECIFICATIONSDevice Drivers Microsoft Windows 98 Second Edition, Windows ME, Windows 2000, Windows XPRoaming IEEE 802.11b/g compliantWEP Supports 64-bit, 128-bit and 256-bit WEP encryptionTable 23 Product Specifications (continued)
ZyXEL G-220 v2 User’s GuideAppendix B Access Point Mode Setup Example 67APPENDIX BAccess Point Mode Setup ExampleThis example uses the network sharing feature in Windows 2000 to bridge the wired and wireless network when you set the ZyXEL G-220 v2 in access point (AP) mode.Refer to Chapter 4, “Access Point Mode Configuration,” on page 53 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 ZyXEL G-220 v21Refer to Section 1.7.1 “Change ZyXEL G-220 v2 Mode” on page 25 to set the ZyXEL G-220 v2 to operate in AP mode.2Click Start, Settings, Network and Dial-up Connections (or click Start, Settings, Control Panel and double-click Network and Dial-up Connections).Figure 35 Windows 2000: Start 3Right-click on the icon for your wired Ethernet adapter and click Properties.
ZyXEL G-220 v2 User’s Guide68 Appendix B Access Point Mode Setup ExampleFigure 36 Windows 2000: Network and Dial-up Connections 4A Properties screen displays. Click the Sharing tab and select Enable Internet Connection Sharing for this connection. Click OK.Figure 37 Windows 2000: Network Properties If there is more than one network adapter on the computer, select Enable Internet Connection Sharing for this connection and select the network adapter to which you want to share network access.
ZyXEL G-220 v2 User’s GuideAppendix B Access Point Mode Setup Example 69Figure 38 WIndows 2000: Network Properties: Select Network Adapter 5A notice screen displays. Click Ye s . Figure 39 Windows 2000: Local Network Configuring the Wireless Station ComputerRefer to Appendix F, “Setting up Your Computer’s IP Address,” on page 95 for more information on how to set up the wireless station computer(s) IP address.
ZyXEL G-220 v2 User’s Guide70 Appendix B Access Point Mode Setup Example
ZyXEL G-220 v2 User’s GuideAppendix C Disable Windows XP Wireless LAN Configuration Tool 71APPENDIX CDisable Windows XP Wireless LANConfiguration ToolWindows XP includes a configuration tool (also known as Wireless Zero Configuration (WZC)) for wireless devices. Follow the steps below to disable the configuration tool in Windows XP after you install the ZyXEL Utility. The screen varies depending on the version of Windows XP service pack.Via the Wireless Network System Tray IconIf the network icon for wireless connections is not present in the system tray, see the next section.1Double-click the network icon for wireless connections in the system tray. Figure 40 Windows XP: System Tray Icon2Windows XP SP1: When a Wireless Network Connection window displays, click Advanced….
ZyXEL G-220 v2 User’s Guide72 Appendix C Disable Windows XP Wireless LAN Configuration ToolFigure 41 Windows XP SP1: Wireless Network ConnectionWindows XP SP2: When a Wireless Network Connection window displays, click Change advanced settings under Related Tasks and then the Wireless Networks tab.Figure 42 Windows XP SP2: Wireless Network Connection3In the Wireless Network Connection Properties window, make sure the Use Windows to configure my wireless network settings check box is not selected. Click OK.
ZyXEL G-220 v2 User’s GuideAppendix C Disable Windows XP Wireless LAN Configuration Tool 73Figure 43 Windows XP SP1: Wireless Network Connection PropertiesFigure 44 Windows XP SP2: Wireless Network Connection Properties
ZyXEL G-220 v2 User’s Guide74 Appendix C Disable Windows XP Wireless LAN Configuration ToolVia the Control Panel1If the icon for the wireless network connection is not in the system tray, click Start, Control Panel and double-click Network Connections. 2Double-click on the icon for wireless network connection to display a status window as shown below. 3Click Properties and click the Wireless Networks tab.Figure 45 Windows XP SP1: Wireless Network Connection StatusFigure 46 Windows XP SP2: Wireless Network Connection Status
ZyXEL G-220 v2 User’s GuideAppendix C Disable Windows XP Wireless LAN Configuration Tool 754In the Wireless Network Connection Properties window, make sure the Use Windows to configure my wireless network settings check box is not selected. Click OK. Figure 47 Windows XP SP1: Wireless Network Connection PropertiesFigure 48 Windows XP SP2: Wireless Network Connection Properties
ZyXEL G-220 v2 User’s Guide76 Appendix C Disable Windows XP Wireless LAN Configuration Tool
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 77APPENDIX DManagement with Wireless ZeroConfigurationThis appendix shows you how to manage your ZyXEL G-220 v2 using the Windows XP wireless zero configuration tool.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 ConfigurationMake sure the Use Windows to configure my wireless network settings check box is selected in the Wireless Network Connection Properties screen. Refer to Appendix C on page 71.If you see the following screen, refer to article 871122 on the Microsoft web site for information on starting WZC.Figure 49 Windows XP SP2: WZC Not Available
ZyXEL G-220 v2 User’s Guide78 Appendix D Management with Wireless Zero ConfigurationConnecting to a Wireless Network 1Double-click the network icon for wireless connections in the system tray to open the Wireless Network Connection Status screen.Figure 50 Windows XP SP2: System Tray IconThe type of the wireless network icon in Windows XP SP2 indicates the status of the ZyXEL G-220 v2. Refer to the following table for details.2Windows XP SP2: In the Wireless Network Connection Status screen, click View Wireless Networks to open the Wireless Network Connection screen.Figure 51 Windows XP SP2: Wireless Network Connection StatusTable 24 Windows XP SP2: System Tray IconICON DESCRIPTIONThe ZyXEL G-220 v2 is connected to a wireless network.The ZyXEL G-220 v2 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 ZyXEL G-220 v2 is not connected to a wireless network.
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 79Windows 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 52 Windows XP SP1: Wireless Network Connection Status3Windows 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.Figure 53 Windows XP SP2: Wireless Network Connection
ZyXEL G-220 v2 User’s Guide80 Appendix D Management with Wireless Zero ConfigurationThe following table describes the icons in the wireless network list.Windows XP SP1: Click Refresh to reload and search for available wireless devices within transmission range. Select a wireless network in the Available networks list, click Configure and set the related fields to the same security settings as the associated AP to add the selected network into the Preferred networks table. Click OK to join the selected wireless network. Refer to the section on security settings (discussed later) for more information. Figure 54 Windows XP SP1: Wireless Network Connection Properties44.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. Table 25 Windows XP SP2: Wireless Network ConnectionICON DESCRIPTIONThis 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 ZyXEL G-220 v2 tries to associate to the preferred network first in the order that you specify. Refer to the section on ordering the preferred networks for detailed information.This denotes the signal strength of the wireless network.Move your cursor to the icon to see details on the signal strength.
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 81If 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 55 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSKFigure 56 Windows XP SP2: Wireless Network Connection: No Security5Verify that you have successfully connected to the selected network and check the connection status in the wireless network list or the connection icon in the Preferred networks or Available networks list.The following table describes the connection icons.Security SettingsWhen you configure the ZyXEL G-220 v2 to connect to a secure network but the security settings are not yet enabled on the ZyXEL G-220 v2, you will see different screens according to the authentication and encryption methods used by the selected network.Table 26 Windows XP: Wireless NetworksICON DESCRIPTIONThis denotes the wireless network is an available wireless network.This denotes the ZyXEL G-220 v2 is associated to the wireless network.This denotes the wireless network is not available.
ZyXEL G-220 v2 User’s Guide82 Appendix D Management with Wireless Zero ConfigurationAssociationSelect a network in the Preferred networks list and click Properties to view or configure security.Figure 57 Windows XP: Wireless (network) properties: AssociationThe following table describes the labels in this screen.Table 27 Windows XP: Wireless (network) properties: AssociationLABEL DESCRIPTIONNetwork name (SSID) This field displays the SSID (Service Set IDentifier) of each wireless network.Network AuthenticationThis field automatically shows the authentication method (Share, Open, WPA or WPA-PSK) used by the selected network. Data Encryption This field automatically shows the encryption type (TKIP, WEP or Disable) used by the selected network. Network Key Enter the pre-shared key or WEP key.The values for the keys must be set up exactly the same on all wireless devices in the same wireless LAN.Confirm network keyEnter the key again for confirmation.Key index (advanced)Select a default WEP key to use for data encryption.This field is available only when the network use WEP encryption method and the The key is provided for me automatically check box is not selected.The key is provided for me automaticallyIf this check box is selected, the wireless AP assigns the ZyXEL G-220 v2 a key.
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 83AuthenticationClick 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.Figure 58 Windows XP: Wireless (network) properties: AuthenticationThe following table describes the labels in this screen.This is a computer-to-computer (ad hoc) network; wireless access points are not usedIf this check box is selected, you are connecting to another computer directly.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.Table 27 Windows XP: Wireless (network) properties: Association (continued)LABEL DESCRIPTIONTable 28 Windows XP: Wireless (network) properties: AuthenticationLABEL DESCRIPTIONEnable IEEE 802.1x authentication for this networkThis 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.EAP Type Select the type of EAP authentication. Options are Protected EAP (PEAP) and Smart Card or other Certificate. Properties Click this button to open the properties screen and configure certificates. The screen varies depending on what you select in the EAP type field.
ZyXEL G-220 v2 User’s Guide84 Appendix D Management with Wireless Zero ConfigurationAuthentication PropertiesSelect an EAP authentication type in the Wireless (network) properties: Authentication screen and click the Properties button to display the following screen. Protected EAP PropertiesFigure 59 Windows XP: Protected EAP PropertiesAuthenticate as computer when computer information is availableSelect this check box to have the computer send its information to the network for authentication when a user is not logged on.Authenticate as guest when user or computer information is unavailableSelect 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.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.Table 28 Windows XP: Wireless (network) properties: Authentication (continued)LABEL DESCRIPTION
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 85The following table describes the labels in this screen.Smart Card or other Certificate PropertiesFigure 60 Windows XP: Smart Card or other Certificate PropertiesTable 29 Windows XP: Protected EAP PropertiesLABEL DESCRIPTIONValidate server certificateSelect the check box to verify the certificate of the authentication server.Connect to these serversSelect the check box and specify a domain in the field below to have your computer connect to a server which resides only within this domain.Trusted Root Certification Authorities:Select a trusted certification authority from the list below.Note: You must first have a wired connection to a network and obtain the certificate(s) from a certificate authority (CA). Consult your network administrator for more information.Do not prompt user to authorize new server or trusted certification authorities.Select this check box to verify a new authentication server or trusted CA without prompting.This field is available only if you installed the Windows XP server pack 2.Select Authentication Method: Select an authentication method from the drop-down list box and click Configure to do settings.Enable Fast ReconnectSelect the check box to automatically reconnect to the network (without re-authentication) if the wireless connection goes down.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.
ZyXEL G-220 v2 User’s Guide86 Appendix D Management with Wireless Zero ConfigurationThe following table describes the labels in this screen.Ordering the Preferred NetworksFollow the steps below to manage your preferred networks.1Windows XP SP2: Click Change the order of preferred networks in the Wireless Network Connection screen (see Figure 53 on page 79). The screen displays as shown. Table 30 Windows XP: Smart Card or other Certificate PropertiesLABEL DESCRIPTIONUse my smart card Select this check box to use the smart card for authentication.Use a certificate on this computerSelect this check box to use a certificate on your computer for authentication.Validate server certificateSelect the check box to check the certificate of the authentication server.Connect to these serversSelect the check box and specify a domain in the field below to have your computer connect to a server which resides only within this domain. Trusted Root Certification Authorities:Select a trusted certification authority from the list below.Note: You must first have a wired connection to a network and obtain the certificate(s) from a certificate authority (CA). Consult your network administrator for more information.View Certificate Click this button if you want to verify the selected certificate.Use a different user name for the connection:Select the check box to use a different user name when the user name in the smart card or certificate is not the same as the user name in the domain that you are logged on to.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.
ZyXEL G-220 v2 User’s GuideAppendix D Management with Wireless Zero Configuration 87Figure 61 Windows XP SP2: Wireless Networks: Preferred NetworksWindows XP SP1: In the Wireless Network Connection Status screen, click Properties and the Wireless Networks tab to open the screen as shown.Figure 62 Windows XP SP1: Wireless Networks: Preferred Networks2Whenever the ZyXEL G-220 v2 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 the security, authentication or connection information of the selected network. Click Add to add a preferred network into the list manually.
ZyXEL G-220 v2 User’s Guide88 Appendix D Management with Wireless Zero Configuration
ZyXEL G-220 v2 User’s GuideAppendix E Types of EAP Authentication 89APPENDIX ETypes of EAP AuthenticationThis appendix discusses some popular authentication types: EAP-MD5, EAP-TLS, EAP-TTLS, PEAP and LEAP. The type of authentication you use depends on the RADIUS server or the AP. Consult your network administrator for more information. Your wireless LAN device may not support all authentication types. 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. 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.
ZyXEL G-220 v2 User’s Guide90 Appendix E Types of EAP AuthenticationPEAP (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.LEAPLEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE 802.1x. Dynamic WEP Key ExchangeThe 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 ExchangeFor 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 31 Comparison of EAP Authentication TypesEAP-MD5 EAP-TLS EAP-TTLS PEAP LEAPMutual Authentication No Yes Yes Yes YesCertificate – Client No Yes Optional Optional NoCertificate – Server No Yes Yes Yes NoDynamic Key Exchange No Yes Yes Yes YesCredential Integrity None Strong Strong Strong ModerateDeployment Difficulty Easy Hard Moderate Moderate ModerateClient Identity Protection No No Yes Yes No
ZyXEL G-220 v2 User’s GuideAppendix E Types of EAP Authentication 91WPA(2)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.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.
ZyXEL G-220 v2 User’s Guide92 Appendix E Types of EAP AuthenticationBy 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 sucessful 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.WPA(2)-PSK Application ExampleA WPA(2)s-PSK application looks as follows.1First 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).2The AP checks each client's password and (only) allows it to join the network if it matches its password.3The AP and wireless clients use the pre-shared key to generate a common PMK.4The AP and wireless clients use the TKIP or AES encryption process to encrypt data exchanged between them.
ZyXEL G-220 v2 User’s GuideAppendix E Types of EAP Authentication 93Figure 63 WPA-PSK AuthenticationWPA(2) with RADIUS Application ExampleYou 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.1The AP passes the wireless client's authentication request to the RADIUS server.2The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly.3The 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.Figure 64 WPA(2) with RADIUS Application Example
ZyXEL G-220 v2 User’s Guide94 Appendix E Types of EAP AuthenticationSecurity Parameters SummaryRefer 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 32 Wireless Security Relational MatrixAUTHENTICATION METHOD/ KEY MANAGEMENT PROTOCOLENCRYPTION METHODENTER MANUAL KEY IEEE 802.1XOpen None No DisableEnable without Dynamic WEP KeyOpen WEP No Enable with Dynamic WEP KeyYes Enable without Dynamic WEP KeyYes DisableShared WEP No Enable with Dynamic WEP KeyYes Enable without Dynamic WEP KeyYes DisableWPA TKIP/AES No EnableWPA-PSK TKIP/AES Yes DisableWPA2 TKIP/AES No EnableWPA2-PSK TKIP/AES Yes Disable
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 95APPENDIX FSetting up Your Computer’s IP AddressAll computers must have a 10M or 100M Ethernet adapter card and TCP/IP installed. Windows 95/98/Me/NT/2000/XP, Macintosh OS 7 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 NT/2000/XP, Macintosh OS 7 and later operating systems.After the appropriate TCP/IP components are installed, configure the TCP/IP settings in order to "communicate" with your network.Windows 95/98/MeClick Start, Settings, Control Panel and double-click the Network icon to open the Network window
ZyXEL G-220 v2 User’s Guide96 Appendix F Setting up Your Computer’s IP AddressFigure 65 WIndows 95/98/Me: Network: ConfigurationInstalling ComponentsThe 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:1In the Network window, click Add.2Select Adapter and then click Add.3Select the manufacturer and model of your network adapter and then click OK.If you need TCP/IP:1In the Network window, click Add.2Select Protocol and then click Add.3Select Microsoft from the list of manufacturers.4Select TCP/IP from the list of network protocols and then click OK.If you need Client for Microsoft Networks:1Click Add.2Select Client and then click Add.
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 973Select Microsoft from the list of manufacturers.4Select Client for Microsoft Networks from the list of network clients and then click OK.5Restart your computer so the changes you made take effect.Configuring 1In the Network window Configuration tab, select your network adapter's TCP/IP entry and click Properties2Click 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 66 Windows 95/98/Me: TCP/IP Properties: IP Address3Click 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).
ZyXEL G-220 v2 User’s Guide98 Appendix F Setting up Your Computer’s IP AddressFigure 67 Windows 95/98/Me: TCP/IP Properties: DNS Configuration4Click 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.5Click OK to save and close the TCP/IP Properties window.6Click OK to close the Network window. Insert the Windows CD if prompted.7Restart your computer when prompted.Verifying Settings1Click Start and then Run.2In the Run window, type "winipcfg" and then click OK to open the IP Configuration window.3Select your network adapter. You should see your computer's IP address, subnet mask and default gateway.Windows 2000/NT/XP1For Windows XP, click start, Control Panel. In Windows 2000/NT, click Start, Settings, Control Panel.
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 99Figure 68 Windows XP: Start Menu2For Windows XP, click Network Connections. For Windows 2000/NT, click Network and Dial-up Connections.Figure 69 Windows XP: Control Panel3Right-click Local Area Connection and then click Properties.
ZyXEL G-220 v2 User’s Guide100 Appendix F Setting up Your Computer’s IP AddressFigure 70 Windows XP: Control Panel: Network Connections: Properties4Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and click Properties.Figure 71 Windows XP: Local Area Connection Properties5The 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.
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 101• 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 72 Windows XP: Advanced TCP/IP Settings6If 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.7In the Internet Protocol TCP/IP Properties window (the General tab in Windows XP):
ZyXEL G-220 v2 User’s Guide102 Appendix F Setting up Your Computer’s IP Address• 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 73 Windows XP: Internet Protocol (TCP/IP) Properties8Click OK to close the Internet Protocol (TCP/IP) Properties window.9Click OK to close the Local Area Connection Properties window.10Restart your computer (if prompted).Verifying Settings1Click Start, All Programs, Accessories and then Command Prompt.2In 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.Macintosh OS 8/9 1Click the Apple menu, Control Panel and double-click TCP/IP to open the TCP/IP Control Panel.
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 103Figure 74 Macintosh OS 8/9: Apple Menu2Select Ethernet built-in from the Connect via list.Figure 75 Macintosh OS 8/9: TCP/IP3For dynamically assigned settings, select Using DHCP Server from the Configure: list.
ZyXEL G-220 v2 User’s Guide104 Appendix F Setting up Your Computer’s IP Address4For statically assigned settings, do the following:•From the Configure box, select Manually.• Type your IP address in the IP Address box.• Type your subnet mask in the Subnet mask box.• Type the IP address of your gateway in the Router address box if you have one.5Close the TCP/IP Control Panel.6Click Save if prompted, to save changes to your configuration.7Restart your computer (if prompted).Verifying SettingsCheck your TCP/IP properties in the TCP/IP Control Panel window.Macintosh OS X1Click the Apple menu, and click System Preferences to open the System Preferences window.Figure 76 Macintosh OS X: Apple Menu2Click Network in the icon bar. • Select Automatic from the Location list.• Select Built-in Ethernet from the Show list. • Click the TCP/IP tab.3For dynamically assigned settings, select Using DHCP from the Configure list.
ZyXEL G-220 v2 User’s GuideAppendix F Setting up Your Computer’s IP Address 105Figure 77 Macintosh OS X: Network4For statically assigned settings, do the following:•From the Configure box, select Manually.• Type your IP address in the IP Address box.• Type your subnet mask in the Subnet mask box.• Type the IP address of your gateway in the Router address box if you have one.5Click Apply Now and close the window.6Restart your computer (if prompted).Verifying SettingsCheck your TCP/IP properties in the Network window.
ZyXEL G-220 v2 User’s Guide106 Appendix F Setting up Your Computer’s IP Address
ZyXEL G-220 v2 User’s GuideIndex 107IndexAAbout 59about your ZyXEL G-220 v2 19access point (AP) 19Access point mode 21, 25access point mode 21, 36, 53additional setup requirements 53configuration 53activating a profile 49Adapter 50Ad-Hoc 20, 47Advanced Encryption Standard 29, 91advanced settings 50antenna 19antenna gain 55antenna output power 54antenna power output 65authentication 56authentication methodauto 31open system 31shared key 31auto authentication 31CCA 89Certificate Authority 89channel 27, 36, 38, 47, 65Configuration 55configuration method 21important note 21Odyssey Client Manager 21Wireless Zero Configuration (WZC) 21ZyXEL Utility 21connecting to a WLAN 38Copyright 3creating a new profile 46current configuration 35current connection status 35current status 54Customer Support 7Ddata encryption 38dBm 55Denmark, Contact Information 7driver version 59Dynamic WEP Key Exchange 90EEAP Authentication 28Enabling OTIST 32Encryption 29, 91Encryption Type 31encryption type 39FFCC 4Finland, Contact Information 7France, Contact Information 7GGermany, Contact Information 7getting started 19graphics icons key 18Hhardware connections 21Hide SSID 55
ZyXEL G-220 v2 User’s Guide108 IndexIIEEE 802.1x 28, 42Infrastructure 19initialization vector (IV) 91installationutility 19Llink information 35, 54MMAC (Media Access Control) 57MAC Filter 57MAC Filter action 57Message Integrity Check 29Message Integrity Check (MIC) 91MIC 29Nnetwork type 36North America Contact Information 7Norway, Contact Information 7OOdyssey Client Manager 21One-Touch Intelligent Security Technology 32open system authentication 31OTIST Introduction 32output power 55PPA2-PSK 40Pairwise Master Key (PMK) 91passphrase 28, 39password phrase 28Power Saving Mode 51preamble 50product specifications 65profile 36, 45activation 49add new 45, 46delete 45edit 45information 45QQuick Start Guide 17, 21Rradio interference 64real-time data traffic statistics 36Regular Mail 7Related Documentation 17Ssave power 51, 55Scan Info 47security 28, 54, 65data encryption 28Security Parameters 94security setting 55Service 6Setup Key 32shared key authentication 31signal strength 38site survey 37connecting to a WLAN network 38scan 38security settings 39sleep mode 51SoftAP 19Spain, Contact Information 8SSID 36, 38, 54, 55SSID (Service Set Identity) 27Starting OTIST 33statistics 36support CD 17
ZyXEL G-220 v2 User’s GuideIndex 109Support E-mail 7Sweden, Contact Information 8syntax conventions 17TTelephone 7Temporal Key Integrity Protocol 29Temporal Key Integrity Protocol (TKIP) 91TKIP 29transmission rate 36, 46, 50, 54, 65transmission rate (Tx Rate) 27transmit key 39Trend Chart 36troubleshooting 63AP connection 63link status 64network communication 64starting ZyXEL Utility 63Uuninstalling ZyXEL Utility 59upgrading ZyXEL Utility 60important step 60User Authentication 29, 92Vvoltage 65WWeb Site 7WEP 28, 39, 56manual setup 28, 40, 56passphrase 28, 39, 56WEP (Wired Equivalent Privacy) 28WEP Encryption 39Wi-Fi Protected Access 29, 91Windows XP 21wireless LANchannel 27encryption 31introduction 27security 27SSID 27transmission rate 27Wireless LAN (WLAN) 27wireless standard 36, 65wireless station mode 24, 36configuration 35WLANSecurity parameters 94Worldwide Contact Information 7WPA 29, 41, 91WPA2 29, 41, 91WPA2-Pre-Shared Key 29, 91WPA2-PSK 29, 91WPA-PSK 29, 40, 91WZC (Wireless Zero Configuration) 21ZZyXEL G-220 v2 Modes 25ZyXEL Limited WarrantyNote 6ZyXEL Utility 21accessing 22help 22opening 22system tray icon 22upgrade 60version 59

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