ZyXEL Communications G260 WLAN USB Adapter User Manual Revised Manual

ZyXEL Communications Corporation WLAN USB Adapter Revised Manual

Revised Manual

ZyXEL G-260802.11g Wireless USB 2.0 AdapterUser’s GuideVersion 1.0012/2005
ZyXEL G-260 User’s GuideCopyright 2CopyrightCopyright © 2005 by ZyXEL Communications Corporation.The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation.Published by ZyXEL Communications Corporation. All rights reserved.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-260 User’s Guide3 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-260 User’s GuideFederal Communications Commission (FCC) Interference Statement 4Certifications1Go to www.zyxel.com2Select 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 ࣹრʳʴࠉᖕʳʳ܅פ෷ሽंᘿ୴ࢤሽᖲጥ෻ᙄऄรԼԲයʳʳᆖীڤᎁᢞٽ௑հ܅פ෷୴᙮ሽᖲΔॺᆖ๺ױΔֆ׹Ε೸ᇆࢨࠌشृ݁լ൓ᖐ۞᧢ޓ᙮෷ΕףՕפ෷ࢨ᧢ޓ଺๻ૠհ௽ࢤ֗פ౨ΖรԼ؄යʳʳ܅פ෷୴᙮ሽᖲհࠌشլ൓ᐙ᥼ଆ౰ڜ٤֗եឫٽऄຏॾΙᆖ࿇෼ڶեឫ෼ွழΔᚨمܛೖشΔࠀޏ࿳۟ྤեឫழֱ൓ᤉᥛࠌشΖছႈٽऄຏॾΔਐࠉሽॾ๵ࡳ܂ᄐհྤᒵሽॾΖ܅פ෷୴᙮ሽᖲႊݴ࠹ٽऄຏॾࢨՠᄐΕઝᖂ֗᠔᛭شሽंᘿ୴ࢤሽᖲ๻ໂհեឫΖ
ZyXEL G-260 User’s Guide5ZyXEL 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 value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.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 of character 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 online at www.zyxel.com for free future product updates and information.
ZyXEL G-260 User’s GuideCustomer Support 6Customer 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 SITE REGULAR 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 II Science Park Hsinchu 300 Taiwansales@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 Communications Czech 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/S Columbusvej 5 2860 Soeborg Denmarksales@zyxel.dk +45 39 55 07 07FINLANDsupport@zyxel.fi +358-9-4780-8411 www.zyxel.fi ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finlandsales@zyxel.fi +358-9-4780 8448FRANCEinf o@zyxel.fr +33 (0)4 72 52 9 7 97 ww w. zyxe l.fr ZyXE L Fra nce 1 rue des Vergers Bat. 1 / C 69760 Limonest France+33 (0)4 72 52 19 20GERMANYsupport@zyxel.de +49-2405-6909-0 www.zyxel.de ZyXEL Deutschland GmbH. Adenauerstr. 20/A2 D-52146 Wuerselen Germanysales@zyxel.de +49-2405-6909-99NORTH AMERICAsupport@zyxel.com +1-800-255-4101+1-714-632-0882www.us.zyxel.com ZyXEL Communications Inc.1130 N. Miller St.Anaheim CA 92806-2001 U.S.A.sales@zyxel.com +1-714-632-0858 ftp.us.zyxel.comNORWAYsupport@zyxel.no +47 22 80 61 80 www.zyxel.no ZyXEL Communications A/S Nils Hansens vei 13 0667 Oslo Norwaysales@zyxel.no +47 22 80 61 81SPAINsupport@zyxel.es +34 902 195 420 www.zyxel.es ZyXEL Communications Alejandro Villegas 33 1º, 28043 Madrid Spainsales@zyxel.es +34 913 005 345SWEDEN support@zyxel.se +46 31 744 7700 www.zyxel.se ZyXEL Communications A/S Sjöporten 4, 41764 Göteborg Swedensales@zyxel.se +46 31 744 7701
ZyXEL G-260 User’s Guide7Customer SupportUNITED KINGDOMsupport@zyxel.co.uk +44 (0) 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 (0) 1344 303034 ftp.zyxel.co.uka. “+” is the (prefix) number you enter to make an international telephone call. METHODLOCATIONSUPPORT E-MAIL TELEPHONEAWEB SITE REGULAR MAILSALES E-MAIL FAX FTP SITE
ZyXEL G-260 User’s GuideTable of Contents 8Table of ContentsCopyright .................................................................................................................. 2Federal Communications Commission (FCC) Interference Statement ............... 3ZyXEL Limited Warranty.......................................................................................... 5Customer Support.................................................................................................... 6Table of Contents ..................................................................................................... 8List of Figures ........................................................................................................ 12List of Tables .......................................................................................................... 14Preface .................................................................................................................... 16Chapter 1Getting Started ....................................................................................................... 181.1 About Your ZyXEL G-260 .................................................................................181.1.1 Application Overview ................................................................................181.1.1.1 Infrastructure ...................................................................................181.1.1.2 Ad-Hoc ............................................................................................191.2 ZyXEL G-260 Hardware and Utility Installation ..................................................191.3 Configuration Methods ......................................................................................191.4 Windows XP Users Only ....................................................................................191.5 Accessing the ZyXEL Utility ..............................................................................201.6 Connecting to a Wireless LAN ...........................................................................201.6.1 Site Survey ...............................................................................................201.7 ZyXEL Utility Screen Summary ..........................................................................22Chapter 2Wireless LAN Network........................................................................................... 242.1 Wireless LAN Overview ....................................................................................242.1.1 SSID .........................................................................................................242.1.2 Channel ....................................................................................................242.1.3 Transmission Rate (Tx Rate) ....................................................................242.2 Wireless LAN Security Overview ......................................................................242.2.1 Data Encryption with WEP ........................................................................252.2.2 IEEE 802.1x ..............................................................................................252.2.2.1 EAP Authentication .........................................................................252.2.3 WPA(2) .....................................................................................................26
ZyXEL G-260 User’s Guide9Table of Contents2.2.3.1 User Authentication .........................................................................262.2.3.2 Encryption .......................................................................................262.2.4 WPA(2)-PSK Application Example ...........................................................272.2.5 WPA with RADIUS Application Example ..................................................272.3 Encryption Type .................................................................................................282.4 Preamble Type ...................................................................................................282.5 Introduction to OTIST .....................................................................................292.5.1 Enabling OTIST ........................................................................................292.5.1.1 AP ...................................................................................................292.5.1.2 Wireless Client ................................................................................302.5.2 Starting OTIST .........................................................................................312.5.3 Notes on OTIST ........................................................................................31Chapter 3ZyXEL Utility Configuration .................................................................................. 343.1 The Link Info Screen .........................................................................................343.1.1 Trend Chart ..............................................................................................353.2 The Site Survey Screen ....................................................................................363.2.1 Connecting to a WLAN Network ..............................................................373.2.2 Security Settings .......................................................................................373.2.2.1 WEP Encryption ..............................................................................373.2.2.2 WPA/WPA2 .....................................................................................393.2.2.3 WPA-PSK/WPA2-PSK .....................................................................403.2.2.4 802.1x .............................................................................................403.2.3 Confirm Save Screen ................................................................................413.3 The Profile Screen .............................................................................................423.3.1 Adding a New Profile ................................................................................433.4 The Adapter Screen ...........................................................................................47Chapter 4Maintenance ........................................................................................................... 504.1 The About Screen .............................................................................................504.2 Uninstalling the ZyXEL Utility ............................................................................504.3 Upgrading the ZyXEL Utility ..............................................................................51Chapter 5 Troubleshooting .................................................................................................. 545.1 Problems Starting the ZyXEL Utility Program ....................................................545.2 Problem with the Link Status ..............................................................................545.3 Problems Communicating With Other Computers .............................................55Appendix AProduct Specifications .......................................................................................... 56
ZyXEL G-260 User’s GuideTable of Contents 10Appendix BDisable Windows XP Wireless LAN Configuration Tool..................................... 58Appendix CManagement with Wireless Zero Configuration..................................................64Appendix DTypes of EAP Authentication................................................................................76Index........................................................................................................................ 80
ZyXEL G-260 User’s Guide11 Table of Contents
ZyXEL G-260 User’s GuideList of Figures 12List of FiguresFigure 1 Application: Infrastructure ....................................................................... 18Figure 2 Application: Ad-Hoc ................................................................................ 19Figure 3 ZyXEL Utility: System Tray Icon .............................................................. 20Figure 4 ZyXEL Utility: Site Survey ....................................................................... 21Figure 5 ZyXEL Utility: Security Settings .............................................................. 21Figure 6 ZyXEL Utility: Link Info ............................................................................ 22Figure 7 Menu Summary ....................................................................................... 22Figure 8 WPA-PSK Authentication ......................................................................... 27Figure 9 WPA with RADIUS Application Example .................................................. 28Figure 10 Link Info ................................................................................................ 34Figure 11 Link Info: Trend Chart ............................................................................ 35Figure 12 Site Survey ............................................................................................ 36Figure 13 Security Settings: WEP ........................................................................ 37Figure 14 Security Settings: WPA/WPA2 ............................................................... 39Figure 15 Security Settings: WPA-PSK/WPA2-PSK .............................................. 40Figure 16 Security Settings: 802.1x ...................................................................... 40Figure 17 Confirm Save Screen ............................................................................ 41Figure 18 Profile Screen ....................................................................................... 42Figure 19 Profile: Add New Profile ........................................................................ 44Figure 20 Profile: Wireless Setting: Select a Channel .......................................... 45Figure 21 Profile: Security Setting: Encryption Type ............................................. 46Figure 22 Profile: Security Setting ......................................................................... 46Figure 23 Profile: Confirm New Settings ............................................................... 47Figure 24 Profile: Activate the Profile .................................................................... 47Figure 25 Adapter Screen ..................................................................................... 47Figure 26 About ..................................................................................................... 50Figure 27 Uninstall: Confirm ................................................................................. 51Figure 28 Uninstall: Finish ..................................................................................... 51Figure 29 Windows XP: System Tray Icon ............................................................. 58Figure 30 Windows XP SP1: Wireless Network Connection .................................. 59Figure 31 Windows XP SP2: Wireless Network Connection .................................. 59Figure 32 Windows XP SP1: Wireless Network Connection Properties ................ 60Figure 33 Windows XP SP2: Wireless Network Connection Properties ................ 60Figure 34 Windows XP SP1: Wireless Network Connection Status ....................... 61Figure 35 Windows XP SP2: Wireless Network Connection Status ....................... 61Figure 36 Windows XP SP1: Wireless Network Connection Properties ................ 62Figure 37 Windows XP SP2: Wireless Network Connection Properties ................ 62Figure 38 Windows XP SP2: WZC Not Available .................................................. 64
ZyXEL G-260 User’s Guide13 List of FiguresFigure 39 Windows XP SP2: System Tray Icon ..................................................... 65Figure 40 Windows XP SP2: Wireless Network Connection Status ....................... 65Figure 41 Windows XP SP1: Wireless Network Connection Status ....................... 66Figure 42 Windows XP SP2: Wireless Network Connection .................................. 66Figure 43 Windows XP SP1: Wireless Network Connection Properties ................ 67Figure 44 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK .. 68Figure 45 Windows XP SP2: Wireless Network Connection: No Security ............. 68Figure 46 Windows XP: Wireless (network) properties: Association ..................... 69Figure 47 Windows XP: Wireless (network) properties: Authentication ................. 70Figure 48 Windows XP: Protected EAP Properties ................................................ 71Figure 49 Windows XP: Smart Card or other Certificate Properties ...................... 72Figure 50 Windows XP SP2: Wireless Networks: Preferred Networks .................. 74Figure 51 Windows XP SP1: Wireless Networks: Preferred Networks .................. 74
ZyXEL G-260 User’s GuideList of Tables 14List of TablesTable 1 ZyXEL Utility: System Tray Icon ............................................................... 20Table 2 ZyXEL Utility: Menu Screen Summary ..................................................... 22Table 3 Link Info .................................................................................................... 34Table 4 Link Info: Trend Chart ............................................................................... 35Table 5 Site Survey ............................................................................................... 36Table 6 Security Settings: WEP ............................................................................ 38Table 7 Security Settings: WPA/WPA2 .................................................................. 39Table 8 Security Settings: WPA-PSK/WPA2-PSK ................................................. 40Table 9 Security Settings: 802.1x .......................................................................... 41Table 10 Confirm Save Screen ............................................................................. 42Table 11 Profile Screen ......................................................................................... 43Table 12 Profile: Add New Profile .......................................................................... 44Table 13 Profile: Wireless Setting: Select a Channel ............................................ 45Table 14 Adapter ................................................................................................... 48Table 15 About ...................................................................................................... 50Table 16 Troubleshooting Starting ZyXEL Utility Program .................................... 54Table 17 Troubleshooting Link Quality .................................................................. 54Table 18 Troubleshooting Communication Problem .............................................. 55Table 19 Product Specifications ............................................................................ 56Table 20 Windows XP SP2: System Tray Icon ...................................................... 65Table 21 Windows XP SP2: Wireless Network Connection .................................. 67Table 22 Windows XP: Wireless Networks ........................................................... 68Table 23 Windows XP: Wireless (network) properties: Association ...................... 69Table 24 Windows XP: Wireless (network) properties: Authentication .................. 70Table 25 Windows XP: Protected EAP Properties ................................................ 72Table 26 Windows XP: Smart Card or other Certificate Properties ....................... 73Table 27 Comparison of EAP Authentication Types .............................................. 77Table 28 Wireless Security Relational Matrix ........................................................ 79
ZyXEL G-260 User’s Guide15 List of Tables
ZyXEL G-260 User’s GuidePreface 16PrefaceCongratulations on your purchase of the ZyXEL G-220F 802.11g Wireless USB Adapter. Your ZyXEL G-260 is easy to install and configure. About This User's GuideThis manual is designed to guide you through the configuration of your ZyXEL G-260 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 choices.• The SMT menu titles and labels are in Bold Times New Roman font. Predefined field choices are in Bold Arial font. Command and arrow keys are enclosed in square brackets. [ENTER] means the Enter, or carriage return key; [ESC] means the Escape key and [SPACE BAR] means the Space Bar.• Mouse action sequences are denoted using a comma. For example, “click the Apple icon, Control Panels and then Modem” means first click the Apple icon, then point your mouse pointer to Control Panels and then click Modem.Note: Register your product online to receive e-mail notices of firmware upgrades and information at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.
ZyXEL G-260 User’s Guide17 Preface• For brevity’s sake, we will use “e.g.,” as a shorthand for “for instance”, and “i.e.,” for “that is” or “in other words” throughout this manual.• The ZyXEL G-220F 802.11g Wireless USB Adapter may be referred to as the ZyXEL G-260 in this user’s guide. Graphics Icons KeyWireless Access Point Computer Notebook Computer Server Modem Wireless Signal Telephone Switch RouterInternet Cloud
ZyXEL G-260 User’s GuideChapter 1 Getting Started 18CHAPTER 1Getting StartedThis chapter introduces the ZyXEL G-260 and prepares you to use the ZyXEL Utility.1.1 About Your ZyXEL G-260 The ZyXEL G-260 is an IEEE 802.11g compliant wireless LAN USB adapter. The following lists the main features of your ZyXEL G-260. 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 • 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-260. 1.1.1.1 Infrastructure To connect to a network via an Access Point (AP), set the ZyXEL G-260 network type to Infrastructure. Through the AP, you can access the Internet or the wired network behind the AP. Figure 1 Application: Infrastructure
ZyXEL G-260 User’s Guide19 Chapter 1 Getting Started1.1.1.2 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 1.2 ZyXEL G-260 Hardware and Utility InstallationFollow the instructions in the Quick Start Guide to install the ZyXEL Utility and make hardware connections.1.3 Configuration MethodsTo configure your ZyXEL G-260, use one of the following applications:• Wireless Zero Configuration (WZC) (recommended for Windows XP)• ZyXEL Utility • 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 You must disable WZC if you want to use the ZyXEL utility. Refer to the appendices on how to deactivate WZC or how to use WZC to manage the ZyXEL G-260.Note: When you use the ZyXEL Utility, it automatically disables the Windows XP wireless configuration tool.
ZyXEL G-260 User’s GuideChapter 1 Getting Started 201.5 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-260 is installed properly.When you use the ZyXEL Utility, it automatically disables the Windows XP wireless configuration tool. Figure 3 ZyXEL Utility: System Tray Icon The color of the ZyXEL Utility system tray icon indicates the status of the ZyXEL G-260. 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 2000 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 LANThe following sections show 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-260 automatically connect to a specific network. Otherwise, configure nothing and leave the ZyXEL G-260 to automatically scan for and connect to any other available network without security.See the next chapters for detailed field descriptions.1.6.1 Site Survey After you install the ZyXEL Utility and then insert the ZyXEL G-260, follow the steps below to connect to a network using the Site Survey screen.Table 1 ZyXEL Utility: System Tray Icon COLOR DESCRIPTIONRed The ZyXEL G-260 is operating in wireless station mode but is not connected to a wireless network.Green The ZyXEL G-260 is operating in wireless station mode and connected to a wireless network.
ZyXEL G-260 User’s Guide21 Chapter 1 Getting Started1Make 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 4 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 SecuritySettings 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 security settings are not correct, the ZyXEL G-260 will be disconnected.Figure 5 ZyXEL Utility: Security Settings 6Verify that you have successfully connected to the selected network and check the network information in the Link Info screen. If the ZyXEL G-260 is not connected to a network, the fields in this screen are blank.
ZyXEL G-260 User’s GuideChapter 1 Getting Started 22Figure 6 ZyXEL Utility: Link Info 1.7 ZyXEL Utility Screen Summary This sections describes the ZyXEL Utility screens. Figure 7 Menu Summary The following table describes the menus. Table 2 ZyXEL Utility: Menu Screen SummaryTAB DESCRIPTIONLink 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.Adapter Use this screen to configure a transfer rate, enable power saving and use OTIST (One-Touch Intelligent Security Technology).
ZyXEL G-260 User’s Guide23 Chapter 1 Getting Started
ZyXEL G-260 User’s GuideChapter 2 Wireless LAN Network 24CHAPTER 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-260 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-260 to operate at the maximum transmission (data) rate. When the communication quality drops below a certain level, the ZyXEL G-260 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-260 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 Mbpsin 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-260 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-260 User’s Guide25 Chapter 2 Wireless LAN NetworkConfigure the wireless LAN security using the Configuration or the Profile Security Settings screen. If you do not enable any wireless security on your ZyXEL G-260, the ZyXEL G-260’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-260 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-260.• 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 SecuritySettings 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-260 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-260 supports EAP-TLS and EAP-PEAP. Refer to Appendix D on page 76 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-260 User’s GuideChapter 2 Wireless LAN Network 262.2.3 WPA(2)Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. Key differences between WPA(2) and WEP are user authentication and improved data encryption.2.2.3.1 User Authentication WPA(2) applies IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless clients using an external RADIUS database. Therefore, if you don't have an external RADIUS server, you should use WPA(2)-PSK (WPA -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 client will be granted access to a WLAN. 2.2.3.2 Encryption WPA improves data encryption by using Temporal Key Integrity Protocol (TKIP), Message Integrity Check (MIC) and IEEE 802.1x. In addition, WPA2 uses Advanced Encryption Standard (AES) to offer stronger encryption. Temporal Key Integrity Protocol (TKIP) uses 128-bit keys that are dynamically generated and distributed by the authentication server. It includes a per-packet key mixing function, a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism.TKIP regularly changes and rotates 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 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. This all happens in the background automatically.AES (Advanced Encryption Standard) is a newer method of data encryption that also uses a secret key. This implementation of AES applies a 128-bit key to 128-bit blocks of data.The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped. By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism (MIC), TKIP makes it much more difficult to decode data on a Wi-Fi network than WEP, making it difficult for an intruder to break into the network.
ZyXEL G-260 User’s Guide27 Chapter 2 Wireless LAN NetworkThe 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 an easier-to-use, consistent, single, alphanumeric password.2.2.4 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 (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 derives and distributes keys to the wireless clients.4The AP and wireless clients use the TKIP encryption process to encrypt data exchanged between them.Figure 8 WPA-PSK Authentication2.2.5 WPA 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-RADIUS 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-260 User’s GuideChapter 2 Wireless LAN Network 28Figure 9 WPA with RADIUS Application Example2.3 Encryption TypeThe IEEE 802.11b/g standard describes a simple encryption method between the wireless stations and AP. Two encryption types are defined: an Open system mode and a Shared key mode.•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 WEP encryption and specify a WEP key on both the wireless station and the AP. 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.Select Auto to have the ZyXEL G-260 automatically use short preamble when all access point/wireless stations support it, otherwise the ZyXEL G-260 uses long preamble.
ZyXEL G-260 User’s Guide29 Chapter 2 Wireless LAN NetworkNote: The ZyXEL G-260 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 Yes check box. If you manually configured a WEP key or a WPA-PSK key and you also selected this check box, then the key you manually configured is used.
ZyXEL G-260 User’s GuideChapter 2 Wireless LAN Network 302.5.1.2 Wireless ClientStart the ZyXEL Utility and click the Adapter tab. Select the Auto Security check box, enter the same Setup Key as your AP’s and click Save.
ZyXEL G-260 User’s Guide31 Chapter 2 Wireless LAN Network2.5.2 Starting OTIST Note: You must click Start in the AP OTIST web configurator screen and Save in the wireless client(s) Adapter screen all within three minutes (at the time or 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. 2.5.3 Notes on OTIST1If you enabled OTIST in the wireless client, you see this screen each time you start the ZyXEL utility. Click Yes for it to search for an OTIST-enabled AP.2If an OTIST-enabled wireless client loses its wireless connection for more than ten seconds, it will search for an OTIST-enabled AP for up to one minute. (If you manually have the wireless client search for an OTIST-enabled AP, there is no timeout; click Cancel in the OTIST progress screen to stop the search.)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-260 User’s GuideChapter 2 Wireless LAN Network 323When 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.
ZyXEL G-260 User’s Guide33 Chapter 2 Wireless LAN Network
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 34CHAPTER 3ZyXEL Utility ConfigurationThis chapter shows you how to configure your ZyXEL G-260 in wireless station mode.3.1 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-260.Figure 10 Link Info The following table describes the labels in this screen. Table 3 Link Info LABEL DESCRIPTIONWireless 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-260 is associated.AP MAC Address This field displays the MAC address of the wireless device to which the ZyXEL G-260 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-260 in megabits per second (Mbps).
ZyXEL G-260 User’s Guide35 Chapter 3 ZyXEL Utility Configuration3.1.1 Trend Chart Click Trend Chart in the Link Info screen to display a screen as shown below. Use this screen to view real-time data traffic statistics.Figure 11 Link Info: Trend Chart The following table describes the labels in this screen. Security This field displays whether data encryption is activated (WEP (WEP or 802.1x), TKIP (WPA/WPA-PSK), AES (WPA2/WPA2-PSK)) or inactive (Disabled).Channel This field displays the radio channel the ZyXEL G-260 is currently using.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-260.Network Mode This field displays the network standard (802.11b or 802.11g) 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.Link Quality This field displays the quality of the signal of the ZyXEL G-260.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.Table 3 Link Info (continued)LABEL DESCRIPTIONTable 4 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-260 User’s GuideChapter 3 ZyXEL Utility Configuration 363.2 The Site Survey Screen Use the Site Survey screen to scan for and connect to a wireless network automatically.Figure 12 Site Survey The following table describes the labels in this screen. Table 5 Site Survey LABEL DESCRIPTIONAvailable Network 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.SSID This field displays the SSID (Service Set IDentifier) of each wireless device.Channel This field displays the channel number used by each wireless device.Signal This field displays the signal strength of each wireless device.Scan Click Scan to search for available wireless devices within transmission range.Connect Click Connect to associate to the selected wireless device.Site Information Click an entry in the Available Network List table to display the information of the selected wireless device.Network Type This field displays the network type (Infrastructure or Ad Hoc) of the wireless device.Channel This field displays the channel number used by each wireless device.Encryption This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA,WPA-PSK,WPA2,WPA2-PSK) or inactive (Disabled).
ZyXEL G-260 User’s Guide37 Chapter 3 ZyXEL Utility Configuration3.2.1 Connecting to a WLAN Network Follow 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.3If the WEP encryption is activated for the selected wireless network, the Security Settings screen displays. You must set the related fields in the Security Settings screen to the same security settings as the associated wireless device. Refer to Section 3.2.2 on page 37 for more information.Otherwise click the Back or 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.3.2.2 Security Settings When you configure the ZyXEL G-260 to connect to a network with wireless security activated and the security settings are disabled on the ZyXEL G-260, the screen varies according to the encryption method used by the selected network.3.2.2.1 WEP EncryptionFigure 13 Security Settings: WEP 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.Table 5 Site Survey (continued)LABEL DESCRIPTION
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 38The following table describes the labels in this screen. Table 6 Security Settings: WEP LABEL DESCRIPTIONSecurity SettingWEP 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 Open and Shared. Refer to Section 2.3 on page 28 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-260 automatically generates four different WEP keys and displays it in the key field below. Refer to Section 2.2.1 on page 25 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 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 orEnter 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 Encryption Type screen to change the encryption typeNext Click Next to confirm your selections and advance to the Save screen. Refer to Section 3.2.3 on page 41.Exit Click Exit to return to the Profile List screen
ZyXEL G-260 User’s Guide39 Chapter 3 ZyXEL Utility Configuration3.2.2.2 WPA/WPA2Figure 14 Security Settings: WPA/WPA2The following table describes the labels in this screen. Table 7 Security Settings: WPA/WPA2LABEL DESCRIPTIONAuthentication Type Select an authentication method from the drop down list. Options are TLS andPEAP.Login Name Enter a user name. This is the user name that you or an administrator set up on a WPA/WPA2 server.Certificate This field is only available when you select TLS in the Authentication Type field. Specify the location and name of a certificate in the Certificate field or click Browse to locate it.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.Password This field is not available when you select TLS in the Authentication Type field. Enter the password associated with the user name above. Validate Server Certificate Select the check box to check the certificate of the authentication server.PEAP Inner EAP This field is only available when you select PEAP in the Authentication Typefield.Use the drop-down list box to select a PEAP protocol. Options are MD5CHALLENGE,TOKEN CARD and MS CHAP v2.Back Click to go back to the Encryption Type screen.Next Click Next to confirm your selections and go to the Save screen. Section 3.2.3 on page 41Exit Click Exit to discard changes and return to the Site Survey screen.
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 403.2.2.3 WPA-PSK/WPA2-PSKFigure 15 Security Settings: WPA-PSK/WPA2-PSKThe following table describes the labels in this screen. 3.2.2.4 802.1xFigure 16 Security Settings: 802.1x Table 8 Security Settings: WPA-PSK/WPA2-PSKLABEL DESCRIPTIONSecurity SettingEncryption Type The encryption mechanisms used for WPA 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.The encryption types for WPA-PSK and WPA2-PSK are TKIP and AESrespectively. Refer to Section 2.2.3 on page 26 for more information.Pass Phrase Type a passphrase from 8 to 63 case-sensitive ASCII characters (including spaces and symbols).Back Takes you back to the Encryption Type screenNext Confirms your selections and takes you to the Save screen. Section 3.2.3 on page 41.Exit Takes you back to the Site Survey screen.
ZyXEL G-260 User’s Guide41 Chapter 3 ZyXEL Utility ConfigurationThe following table describes the labels in this screen. 3.2.3 Confirm Save ScreenUse the Confirm Save screen to confirm and save the security settings.Figure 17 Confirm Save Screen Table 9 Security Settings: 802.1xLABEL DESCRIPTIONAuthentication Type Select an authentication method from the drop down list. Options are TLS and PEAP.Login Name Enter a user name. This is the user name that you or an administrator set up on a RADIUS server.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. Specify the location and name of a certificate in the Certificate field or click Browse to locate it.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.Browse This field is only available when you select TLS in the Authentication Type field.Click this button to display the Select Certificate screen, select a certificate and click OK.Validate Server Certificate Select the check box to check the certificate of the authentication server.PEAP Inner EAP This field is only available when you select PEAP in the Authentication Typefield.Use the drop-down list box to select a PEAP protocol. Options are MD5CHALLENGE,TOKEN CARD and MS CHAP v2.Save Click Save to save the changes back to the ZyXEL G-260 and display the Link Info screen. Otherwise, click the close ( ) button to discard changes and go back to the Site Survey screen.
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 42The following table describes the labels in this screen. 3.3 The Profile Screen Click the Profile tab in the ZyXEL Utility program to display the Profile screen as shown next.The profile function allows you to save the wireless network settings in this screen, or use one of the pre-configured network profiles.Figure 18 Profile Screen 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 Encryption/Authentication screenSave Click Save to save the changes back to the ZyXEL G-260 and display the Link Infoscreen. Otherwise, click Back to go back to the Encryption Type screen or click Exitto discard changes and go back to the Site Survey screen.Exit Click Exit to discard changes and return to the Site Survey screen.
ZyXEL G-260 User’s Guide43 Chapter 3 ZyXEL Utility ConfigurationThe following table describes the labels in this screen. 3.3.1 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.Table 11 Profile ScreenLABEL 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 ProfileList 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.Security This field shows whether data encryption is activated (WEP (WEP or 802.1x), WPA,WPA-PSK,WPA2,WPA2-PSK) or inactive (Disabled).Transfer Rate This field displays the transfer speed of the selected profile in megabits per second (Mbps).
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 44Figure 19 Profile: Add New Profile The following table describes the labels in this screen. Table 12 Profile: Add 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, leave this field blank to have the ZyXEL G-260 associate to or roam between any infrastructure wireless networks.Network Type Select the Infrastructure radio button to associate to an AP. Select the Ad-Hocradio button to associate to a peer computer.Next Click Next to go to the next screen.Exit Click Exit to go back to the previous screen without saving.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-260 associates to the selected wireless network only.
ZyXEL G-260 User’s Guide45 Chapter 3 ZyXEL Utility Configuration2If 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 wireless LAN mode and click Next to continue.Figure 20 Profile: Wireless Setting: Select a Channel The following table describes the labels in this screen. 3If you select Infrastructure network type in the first screen, select WEP,WPA-PSK, WPA2-PSK,WPA or WPA2 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-260 to communicate with the access points or other peer wireless computers without any data encryption and skip to step 5.Table 13 Profile: Wireless Setting: Select a ChannelLABEL DESCRIPTIONWireless SettingChannel 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.Back Click Back to return to the Add New Profile screen.Next Click Next to confirm your selection and advance to the Encryption Type screen.Exit Click Exit to discard changes and return to the Add New Profile screen.
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 46Figure 21 Profile: Security Setting: Encryption Type 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-260. Refer to Section 3.2.2 on page 37 for detailed information on wireless security configuration.Figure 22 Profile: Security Setting 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.
ZyXEL G-260 User’s Guide47 Chapter 3 ZyXEL Utility ConfigurationFigure 23 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.Figure 24 Profile: Activate the Profile 3.4 The Adapter Screen To set the advanced features on the ZyXEL G-260, click the Adapter tab.Figure 25 Adapter Screen
ZyXEL G-260 User’s GuideChapter 3 ZyXEL Utility Configuration 48The following table describes the labels in this screen. Table 14 AdapterLABEL DESCRIPTIONAdapterTransfer Rate Select a transfer speed from the drop-down list box. Choose from Fully Auto (default), 1 Mbps,2 Mbps,5.5 Mbps,6 Mbps,9 Mbps,12 Mbps,18 Mbps,24Mbps,36 Mbps,48 Mbps, and 54 Mbps.Preamble Type Select a preamble type. Choices are Long, Short and Auto.The default setting is Long.Refer to Section 2.4 on page 28 for more information.Power Saving Mode Select Maximum Power Save or Fast Power Save to save power (especially for notebook computers). This forces the ZyXEL G-260 to go to sleep mode when it is not transmitting data.When you select Continuous Access Mode, the ZyXEL G-260 will never go to sleep mode.OTIST (One-Touch Intelligent Security)Select this check box to enable auto security.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.Save Click Save to save the changes back to the ZyXEL G-260 and return to the Link Info screen.
ZyXEL G-260 User’s Guide49 Chapter 3 ZyXEL Utility Configuration
ZyXEL G-260 User’s GuideChapter 4 Maintenance 50CHAPTER 4MaintenanceThis chapter describes how to uninstall or upgrade the ZyXEL Utility.4.1 The About Screen The About screen displays related version numbers of the ZyXEL G-260. To display the screen as shown below, click the about ( ) button.Figure 26 About The following table describes the read-only fields in this screen. 4.2 Uninstalling the ZyXEL Utility Follow the steps below to remove (or uninstall) the ZyXEL Utility from your computer.1Click Start,Programs,ZyXEL G-260 Utility,Uninstall ZyXEL G-260 Utility.2When prompted, click OK or Yes to remove the driver and the utility software.Table 15 About LABEL DESCRIPTIONDriver Version This field displays the version number of the ZyXEL G-260 driver.Utility Version This field displays the version number of the ZyXEL Utility.
ZyXEL G-260 User’s Guide51 Chapter 4 MaintenanceFigure 27 Uninstall: Confirm 3Click Finish to complete uninstalling the software and restart the computer when prompted.Figure 28 Uninstall: Finish 4.3 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 4.2 on page 50 to remove the current ZyXEL Utility from your computer.3Restart your computer when prompted.4Disconnect the ZyXEL G-260 from your computer.5Double-click on the setup program for the new utility to start the ZyXEL Utility installation.
ZyXEL G-260 User’s GuideChapter 4 Maintenance 526Insert the ZyXEL G-260 and check the version numbers in the About screen to make sure the new utility is installed properly.
ZyXEL G-260 User’s Guide53 Chapter 4 Maintenance
ZyXEL G-260 User’s GuideChapter 5 Troubleshooting 54CHAPTER 5 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.5.1 Problems Starting the ZyXEL Utility Program5.2 Problem with the Link StatusTable 16 Troubleshooting Starting ZyXEL Utility Program PROBLEM CORRECTIVE ACTIONCannot start the ZyXEL Wireless LAN UtilityMake sure the ZyXEL G-260 is properly inserted and the LED is on. 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-260 under Network Adapter. (Steps may vary depending on the version of Windows). Install the ZyXEL G-260 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.If you use the Windows XP configuration tool and the ZyXEL Utility to configure the ZyXEL G-260 at the same time, the ZyXEL Utility icon does not display. You need to disable the Windows XP configuration tool (refer to Appendix B on page 58 for more information).Table 17 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.
ZyXEL G-260 User’s Guide55 Chapter 5 Troubleshooting5.3 Problems Communicating With Other ComputersTable 18 Troubleshooting Communication Problem PROBLEM CORRECTIVE ACTIONIn wireless station mode, the computer with the ZyXEL G-260 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-260 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 Settings screen.In Ad-Hoc (IBSS) Mode• Verify that the peer computer(s) is turned on.• Make sure the ZyXEL G-260 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.
ZyXEL G-260 User’s GuideAppendix A 56Appendix AProduct SpecificationsTable 19 Product Specifications PHYSICAL AND ENVIRONMENTALProduct Name ZyXEL G-260 802.11g Wireless USB AdapterInterface USB 2.0 bus-poweredStandards IEEE 802.11bIEEE 802.11gNetwork Architectures InfrastructureAd-HocSecurity 64/128/256-bit WEP EncryptionOperating Temperature 0 ~ 50 degrees CentigradeStorage Temperature -10 ~ 60 degrees CentigradeOperating Humidity 20 ~ 95% (non-condensing)Storage Humidity 20 ~ 95% (non-condensing)Power Consumption TX: <480mA RX: <430mAVoltage 5VWeight 25.8 gDimension (L) 95 mm × (M) 30 mm × (H) 16 mmRADIO SPECIFICATIONSMedia Access Protocol IEEE 802.11Frequency USA (FCC) & Canada 11 Channels: 2.412GHz~2.462GHzEurope (ETSI) 13 Channels: 2.412GHz~2.472GHzJapan (TELEC) 14 Channels: 2.412GHz~2.483GHzData Rate IEEE 802.11g: Orthogonal Frequency Division Multiplexing (OFDM): 54, 48, 36, 24, 18, 12, 9, 6 Mbps IEEE 802.11b: 11, 5.5, 2, 1 MbpsModulation IEEE 802.11g: OFDM (64QAM, 16QAM, QPSK, BPSK)IEEE 802.11b: PBCC, Direct Sequence Spread Spectrum (DSSS), (CCK, DQPSK, DBPSK)Maximum Output Power IEEE 802.11b: 18dBm IEEE 802.11g: 21dBm RX Sensitivity IEEE 802.11g (OFDM): 54 Mbps: < -68 dBm (typical)IEEE 802.11b (CCK): 11 Mbps: < -83 dBm (typical)SAR Value 1.495 W/kgSOFTWARE SPECIFICATIONSDevice Drivers Microsoft Windows 98 Second Edition, Windows ME, Windows 2000, Windows XP
ZyXEL G-260 User’s Guide57 Appendix ARoaming IEEE 802.11b/g compliantWEP 64/128/256-bit WEP encryptionTable 19 Product Specifications (continued)
ZyXEL G-260 User’s GuideAppendix B 58APPENDIX BDisable 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 29 Windows XP: System Tray Icon2Windows XP SP1: When a Wireless Network Connection window displays, click Advanced….
ZyXEL G-260 User’s Guide59 Appendix BFigure 30 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 31 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-260 User’s GuideAppendix B 60Figure 32 Windows XP SP1: Wireless Network Connection PropertiesFigure 33 Windows XP SP2: Wireless Network Connection Properties
ZyXEL G-260 User’s Guide61 Appendix BVia 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 34 Windows XP SP1: Wireless Network Connection StatusFigure 35 Windows XP SP2: Wireless Network Connection Status
ZyXEL G-260 User’s GuideAppendix B 624In 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 36 Windows XP SP1: Wireless Network Connection PropertiesFigure 37 Windows XP SP2: Wireless Network Connection Properties
ZyXEL G-260 User’s Guide63 Appendix B
ZyXEL G-260 User’s GuideAppendix C 64APPENDIX CManagement with Wireless ZeroConfigurationThis appendix shows you how to manage your ZyXEL wireless LAN adapter 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 B on page 58.If you see the following screen, refer to article 871122 on the Microsoft web site for information on starting WZC.Figure 38 Windows XP SP2: WZC Not Available
ZyXEL G-260 User’s Guide65 Appendix CConnecting 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 39 Windows XP SP2: System Tray IconThe type of the wireless network icon in Windows XP SP2 indicates the status of the ZyXEL wireless LAN adapter. 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 40 Windows XP SP2: Wireless Network Connection StatusTable 20 Windows XP SP2: System Tray IconICON DESCRIPTIONThe ZyXEL wireless LAN adapter is connected to a wireless network.The ZyXEL wireless LAN adapter 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 wireless LAN adapter is not connected to a wireless network.
ZyXEL G-260 User’s GuideAppendix C 66Windows XP SP1: In the Wireless Network Connection Status screen, click Propertiesand the Wireless Networks tab to open the Wireless Network Connection Propertiesscreen.Figure 41 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 Connectto join the selected wireless network.Figure 42 Windows XP SP2: Wireless Network Connection
ZyXEL G-260 User’s Guide67 Appendix CThe 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 43 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 21 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 wireless LAN adapter 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-260 User’s GuideAppendix C 68If 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 44 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSKFigure 45 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 wireless LAN adapter to connect to a secure network but the security settings are not yet enabled on the ZyXEL wireless LAN adapter, you will see different screens according to the authentication and encryption methods used by the selected network.Table 22 Windows XP: Wireless NetworksICON DESCRIPTIONThis denotes the wireless network is an available wireless network.This denotes the ZyXEL wireless LAN adapter is associated to the wireless network.This denotes the wireless network is not available.
ZyXEL G-260 User’s Guide69 Appendix CAssociationSelect a network in the Preferred networks list and click Properties to view or configure security.Figure 46 Windows XP: Wireless (network) properties: AssociationThe following table describes the labels in this screen.Table 23 Windows XP: Wireless (network) properties: AssociationLABEL DESCRIPTIONNetwork name (SSID) This field displays the SSID (Service Set IDentifier) of each wireless network.Network Authentication This field automatically shows the authentication method (Share,Open,WPA or WPA-PSK) used by the selected network. Data Encryption This field automatically shows the encryption type (TKIP,WEP or Disable) used by the selected network. Network Key Enter the pre-shared key or WEP key.The values for the keys must be set up exactly the same on all wireless devices in the same wireless LAN.Confirm network key Enter the key again for confirmation.Key index (advanced) Select a default WEP key to use for data encryption.This field is available only when the network use WEP encryption method and the The key is provided for me automatically check box is not selected.The key is provided for me automaticallyIf this check box is selected, the wireless AP assigns the ZyXEL wireless LAN adapter a key.
ZyXEL G-260 User’s GuideAppendix C 70AuthenticationClick 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 47 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 23 Windows XP: Wireless (network) properties: Association (continued)LABEL DESCRIPTIONTable 24 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-260 User’s Guide71 Appendix CAuthentication PropertiesSelect an EAP authentication type in the Wireless (network) properties: Authenticationscreen and click the Properties button to display the following screen. Protected EAP PropertiesFigure 48 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 24 Windows XP: Wireless (network) properties: Authentication (continued)LABEL DESCRIPTION
ZyXEL G-260 User’s GuideAppendix C 72The following table describes the labels in this screen.Smart Card or other Certificate PropertiesFigure 49 Windows XP: Smart Card or other Certificate PropertiesTable 25 Windows XP: Protected EAP PropertiesLABEL DESCRIPTIONValidate server certificate Select the check box to verify the certificate of the authentication server.Connect to these servers Select the check box and specify a domain in the field below to have your computer connect to a server which resides only within this domain.Trusted Root Certification Authorities:Select a trusted certification authority from the list below.Note: You must first have a wired connection to a network and obtain the certificate(s) from a certificate authority (CA). Consult your network administrator for more information.Do not prompt user to authorize new server or trusted certification authorities.Select this check box to verify a new authentication server or trusted CA without prompting.This field is available only if you installed the Windows XP server pack 2.Select Authentication Method:Select an authentication method from the drop-down list box and click Configureto do settings.Enable Fast Reconnect Select the check box to automatically reconnect to the network (without re-authentication) if the wireless connection goes down.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.
ZyXEL G-260 User’s Guide73 Appendix CThe 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 42 on page 66). The screen displays as shown. Table 26 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 computer Select this check box to use a certificate on your computer for authentication.Validate server certificate Select the check box to check the certificate of the authentication server.Connect to these servers Select the check box and specify a domain in the field below to have your computer connect to a server which resides only within this domain. Trusted Root Certification Authorities:Select a trusted certification authority from the list below.Note: You must first have a wired connection to a network and obtain the certificate(s) from a certificate authority (CA). Consult your network administrator for more information.View Certificate Click this button if you want to verify the selected certificate.Use a different user name for the connection:Select the check box to use a different user name when the user name in the smart card or certificate is not the same as the user name in the domain that you are logged on to.OK Click OK to save your changes.Cancel Click Cancel to leave this screen without saving any changes you may have made.
ZyXEL G-260 User’s GuideAppendix C 74Figure 50 Windows XP SP2: Wireless Networks: Preferred NetworksWindows XP SP1: In the Wireless Network Connection Status screen, click Propertiesand the Wireless Networks tab to open the screen as shown.Figure 51 Windows XP SP1: Wireless Networks: Preferred Networks2Whenever the ZyXEL wireless LAN adapter 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-260 User’s Guide75 Appendix C
ZyXEL G-260 User’s GuideAppendix D 76Appendix DTypes 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-260 User’s Guide77 Appendix DPEAP (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 27 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-260 User’s GuideAppendix D 78WPAUser Authentication WPA applies IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless stations using an external RADIUS database. EncryptionWPA improves data encryption by using Temporal Key Integrity Protocol (TKIP) or Advanced Encryption Standard (AES), Message Integrity Check (MIC) and IEEE 802.1x.TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication server. It includes a per-packet key mixing function, a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism.TKIP regularly changes and rotates 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.AES (Advanced Encryption Standard) also uses a secret key. This implementation of AES applies a 128-bit key to 128-bit blocks of data.The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped. By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism (MIC), TKIP makes it much more difficult to decrypt data on a Wi-Fi network than WEP, making it difficult for an intruder to break into the network. The encryption mechanisms used for WPA and WPA-PSK are the same. The only difference between the two is that WPA-PSK uses a simple common password, instead of user-specific credentials. The common-password approach makes WPA-PSK susceptible to brute-force password-guessing attacks but it’s still an improvement over WEP as it employs an easier-to-use, consistent, single, alphanumeric password.
ZyXEL G-260 User’s Guide79 Appendix DSecurity 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 28 Wireless Security Relational MatrixAUTHENTICATIONMETHOD/ KEY MANAGEMENT PROTOCOLENCRYPTIONMETHOD ENTER MANUAL KEY ENABLE IEEE 802.1X Open None No NoOpen WEP No Enable with Dynamic WEP Key Yes Enable without Dynamic WEP KeyYes Disable Shared WEP No Enable with Dynamic WEP KeyYes Enable without Dynamic WEP KeyYes Disable WPA WEP No YesWPA TKIP No YesWPA-PSK WEP Yes Yes WPA-PSK TKIP Yes Yes
ZyXEL G-260 User’s GuideIndex 80IndexNumerics802.1x 40AAbout 50about your ZyXEL G-260 18activating a profile 47Adapter 47Ad-Hoc 45advanced settings 47antenna 18antenna power output 56authentication 38authentication methodopen system 28shared key 28CCA 76Certificate Authority 76channel 24,35,36,45configuration methodimportant note 19Odyssey Client Manager 19Wireless Zero Configuration (WZC) 19ZyXEL Utility 19connecting to a WLAN 37Copyright 2creating a new profile 43current configuration 34current connection status 34Customer Support 6Ddata encryption 36Denmark, Contact Information 6driver version 50Dynamic WEP Key Exchange 77EEnabling OTIST 29Encryption 78FFCC 3Finland, Contact Information 6France, Contact Information 6GGermany, Contact Information 6getting started 18graphics icons key 17Hhardware connections 19Iinitialization vector (IV) 78installationutility 18
ZyXEL G-260 User’s Guide81 IndexLlink information 34MMessage Integrity Check (MIC) 78Nnetwork type 34North America Contact Information 6Norway, Contact Information 6OOdyssey Client Manager 19One-Touch Intelligent Security Technology 29open system authentication 28OTIST 31OTIST (One-Touch Intelligent Security) 48OTIST Introduction 29PPairwise Master Key (PMK) 78passphrase 25,38password phrase 25Power Saving Mode 48preamble 48product specifications 56profile 34,43activation 47add new 43delete 43edit 43information 43QQuick Start Guide 16,19Rradio interference 54real-time data traffic statistics 35Regular Mail 6Related Documentation 16Ssave power 48Scan Info 44security 25,56data encryption 25Security Parameters 79Service 5Setup Key 29shared key authentication 28signal strength 36site survey 36connecting to a WLAN network 37scan 36security settings 37sleep mode 48Spain, Contact Information 6SSID 34,36SSID (Service Set Identity) 24Starting OTIST 31statistics 35support CD 16Support E-mail 6Sweden, Contact Information 6syntax conventions 16TTelephone 6Temporal Key Integrity Protocol (TKIP) 78transmission rate 34,43,48transmission rate (Tx Rate) 24transmit key 38Trend Chart 35troubleshooting 54link status 54network communication 55starting ZyXEL Utility 54
ZyXEL G-260 User’s GuideIndex 82Uuninstalling ZyXEL Utility 50upgrading ZyXEL Utility 51important step 51User Authentication 78Vvoltage 56WWeb Site 6WEP 25,37,38manual setup 25,38passphrase 25,38WEP (Wired Equivalent Privacy) 25Windows XP 19wireless LANauthentication 28channel 24introduction 24security 24SSID 24transmission rate 24Wireless LAN (WLAN) 24wireless standard 56wireless station modeconfiguration 34WLANSecurity parameters 79Worldwide Contact Information 6WPA 39WPA2 39WPA2-PSK 40WPA-PSK 40WZC (Wireless Zero Configuration) 19ZZyXEL Limited WarrantyNote 5ZyXEL Utility 19accessing 20help 20opening 20system tray icon 20upgrade 51version 50

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