ZyXEL Communications G-302 V3 User`s guide

ZyXEL Communications G-302 V3 User`s guide
ZyXEL G-302 v3
802.11g Wireless PCI Adapter
User’s Guide
Version 4.00
Edition 1
12/2007
ZyXEL G-302 v3 User’s Guide
Preface
Congratulations on your purchase of the ZyXEL G-302 v3 802.11g Wireless PCI Adapter.
Your G-302 v3 is easy to install and configure.
About This User's Guide
This manual is designed to guide you through the configuration of your G-302 v3 for its
various applications.
Related Documentation
• Supporting Disk
Refer to the included CD for support documents.
• Quick Start Guide
The Quick Start Guide is designed to help you get up and running right away. They
contain hardware installation/connection information.
• ZyXEL Glossary and Web Site
Please 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 [email protected] or send regular mail to The Technical Writing
Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park,
Hsinchu, 300, Taiwan. Thank you.
Syntax Conventions
• “Enter” means for you to type one or more characters. “Select” or “Choose” means for
you to use one predefined choice.
• Mouse action sequences are denoted using a comma. For example, “In Windows, click
Start, Settings and then Control Panel” means first click the Start button, then point
your mouse pointer to Settings and then click Control Panel.
• “e.g.,” is a shorthand for “for instance”, and “i.e.,” means “that is” or “in other words”.
• The ZyXEL G-302 v3 802.11g Wireless PCI Adapter may be referred to as the G-302 v3
in this user’s guide.
Preface
3
ZyXEL G-302 v3 User’s Guide
Graphics Icons Key
4
Access Point
Computer
Notebook Computer
Server
Internet Cloud
Wireless Signal
Preface
ZyXEL G-302 v3 User’s Guide
Safety Warnings
WARNING: For your safety, be sure to read and follow all warning
notices and instructions.
• Do NOT use this product near water, for example, in a wet basement or near a swimming
pool.
• Do NOT expose your device to dampness, dust or corrosive liquids.
• Do NOT store things on the device.
• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk
of electric shock from lightning.
• Connect ONLY suitable accessories to the device.
• Do NOT open the device or unit. Opening or removing covers can expose you to
dangerous high voltage points or other risks. ONLY qualified service personnel should
service or disassemble this device. Please contact your vendor for further information.
• Do not use the device outside, and make sure all the connections are indoors. There is a
remote risk of electric shock from lightning.
• Antenna Warning! This device meets ETSI and FCC certification requirements when
using the included antenna(s). Only use the included antenna(s).
This product is recyclable. Dispose of it properly.
Preface
5
ZyXEL G-302 v3 User’s Guide
6
Preface
ZyXEL G-302 v3 User’s Guide
Copyright
Copyright © 2007 by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed,
stored in a retrieval system, translated into any language, or transmitted in any form or by any
means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or
otherwise, without the prior written permission of ZyXEL Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or
software described herein. Neither does it convey any license under its patent rights nor the
patent rights of others. ZyXEL further reserves the right to make changes in any products
described herein without notice. This publication is subject to change without notice.
Trademarks
ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL
Communications, Inc. Other trademarks mentioned in this publication are used for
identification purposes only and may be properties of their respective owners.
Copyright
7
ZyXEL G-302 v3 User’s Guide
Certifications
Federal Communications Commission (FCC) Interference Statement
The device complies with Part 15 of FCC rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause
undesired operations.
This 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:
1 Reorient or relocate the receiving antenna.
2 Increase the separation between the equipment and the receiver.
3 Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
4 Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
• The device complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment, under 47 CFR 2.1093 paragraph (d)(2). End users must follow the specific
operating instructions for satisfying RF exposure compliance. To maintain compliance
with FCC RF exposure compliance requirements, please follow operation instruction as
documented in this manual.
• This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
• IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to
channels 1 through 11.
• To comply with FCC RF exposure compliance requirements, a separation distance of at
least 20 cm must be maintained between the antenna of this device and all persons.
8
Certifications
ZyXEL G-302 v3 User’s Guide
注意 !
依據
低功率電波輻射性電機管理辦法
第十二條 經型式認證合格之低功率射頻電機,非經許可,公司、商號或使用
者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。
第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通信;經發現
有干擾現象時,應立即停用,並改善至無干擾時方得繼續使用。
前項合法通信,指依電信規定作業之無線電信。低功率射頻電機須忍
受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。
Notices
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
This device has been designed for the WLAN 2.4 GHz network throughout the EC region and
Switzerland, with restrictions in France.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This device has been designed to operate with the antennas for a maximum gain of 2 dB,
antenna type: dipole. Antennas not described as above are strictly prohibited for use with this
device.
Certifications
1 Go to www.zyxel.com.
2 Select your product from the drop-down list box on the
ZyXEL home page to go to that product's page.
3 Select the certification you wish to view from this
page.
Certifications
9
ZyXEL G-302 v3 User’s Guide
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects
in materials or workmanship for a period of up to two (2) years from the date of purchase.
During the warranty period, and upon proof of purchase, should the product have indications
of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or
replace the defective products or components without charge for either parts or labor, and to
whatever extent it shall deem necessary to restore the product or components to proper
operating condition. Any replacement will consist of a new or re-manufactured functionally
equivalent product of equal or higher value, and will be solely at the discretion of ZyXEL.
This warranty shall not apply if the product has been modified, misused, tampered with,
damaged by an act of God, or subjected to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the
purchaser. This warranty is in lieu of all other warranties, express or implied, including any
implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in
no event be held liable for indirect or consequential damages of any kind to the purchaser.
To obtain the services of this warranty, contact 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 Registration
Register your product online to receive e-mail notices of firmware upgrades and information
at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.
10
ZyXEL Limited Warranty
ZyXEL G-302 v3 User’s Guide
Customer Support
Please have the following information ready when you contact customer support.
•
•
•
•
Product model and serial number.
Warranty Information.
Date that you received your device.
Brief description of the problem and the steps you took to solve it.
METHOD SUPPORT E-MAIL
TELEPHONE
WEB SITE
FAX
FTP SITE
REGULAR MAIL
LOCATION
CORPORATE
HEADQUARTERS
(WORLDWIDE)
COSTA RICA
CZECH REPUBLIC
DENMARK
FINLAND
SALES E-MAIL
[email protected] +886-3-578-3942
[email protected]
[email protected]
+506-2017878
www.zyxel.co.cr
[email protected]
+506-2015098
ftp.zyxel.co.cr
[email protected]
+420-241-091-350
www.zyxel.cz
[email protected]
+420-241-091-359
ZyXEL Communications
Czech s.r.o.
Modranská 621
143 01 Praha 4 - Modrany
Ceská Republika
[email protected]
+45-39-55-07-00
www.zyxel.dk
[email protected]
+45-39-55-07-07
ZyXEL Communications A/S
Columbusvej
2860 Soeborg
Denmark
[email protected]
+358-9-4780-8411
www.zyxel.fi
[email protected]
+358-9-4780 8448
ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland
www.zyxel.fr
ZyXEL France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France
www.zyxel.de
ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany
www.zyxel.hu
ZyXEL Hungary
48, Zoldlomb Str.
H-1025, Budapest
Hungary
www.zyxel.kz
ZyXEL Kazakhstan
43, Dostyk ave.,Office 414
Dostyk Business Centre
050010, Almaty
Republic of Kazakhstan
ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
[email protected]
HUNGARY
KAZAKHSTAN
[email protected]
+49-2405-690969
[email protected]
+49-2405-6909-99
[email protected]
+36-1-3361649
[email protected]
+36-1-3259100
http://zyxel.kz/support
+7-3272-590-698
[email protected]
+7-3272-590-689
[email protected]
1-800-255-4101
+1-714-632-0882
www.us.zyxel.com
[email protected]
+1-714-632-0858
ftp.us.zyxel.com
NORTH AMERICA
Customer Support
+33-4-72-52-97-97
+33-4-72-52-19-20
FRANCE
GERMANY
+886-3-578-2439
www.zyxel.com
ZyXEL Communications Corp.
www.europe.zyxel.com 6 Innovation Road II
Science Park
ftp.zyxel.com
Hsinchu 300
Taiwan
ftp.europe.zyxel.com
ZyXEL Costa Rica
Plaza Roble Escazú
Etapa El Patio, Tercer Piso
San José, Costa Rica
11
ZyXEL G-302 v3 User’s Guide
METHOD SUPPORT E-MAIL
TELEPHONE
WEB SITE
SALES E-MAIL
FAX
FTP SITE
[email protected]
+47-22-80-61-80
www.zyxel.no
[email protected]
+47-22-80-61-81
ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
www.pl.zyxel.com
ZyXEL Communications
ul. Okrzei 1A
03-715 Warszawa
Poland
www.zyxel.ru
ZyXEL Russia
Ostrovityanova 37a Str.
Moscow, 117279
Russia
www.zyxel.es
ZyXEL Communications
Arte, 21 5ª planta
28033 Madrid
Spain
www.zyxel.se
ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden
www.ua.zyxel.com
ZyXEL Ukraine
13, Pimonenko Str.
Kiev, 04050
Ukraine
ZyXEL Communications UK
Ltd.,11 The Courtyard,
Eastern Road, Bracknell,
Berkshire, RG12 2XB,
United Kingdom (UK)
REGULAR MAIL
LOCATION
NORWAY
[email protected]
POLAND
+48 (22) 333 8250
+48 (22) 333 8251
RUSSIA
SPAIN
SWEDEN
http://zyxel.ru/support
+7-095-542-89-29
[email protected]
+7-095-542-89-25
[email protected]
+34-902-195-420
[email protected]
+34-913-005-345
[email protected]
+46-31-744-7700
[email protected]
+46-31-744-7701
[email protected] +380-44-247-69-78
UKRAINE
[email protected]
+380-44-494-49-32
[email protected]
+44-1344 303044
08707 555779 (UK only)
www.zyxel.co.uk
[email protected]
+44-1344 303034
ftp.zyxel.co.uk
UNITED KINGDOM
+” is the (prefix) number you enter to make an international telephone call.
12
Customer Support
ZyXEL G-302 v3 User’s Guide
Table of Contents
Preface ...................................................................................................................... 3
Copyright .................................................................................................................. 7
Certifications ............................................................................................................ 8
ZyXEL Limited Warranty........................................................................................ 10
Customer Support.................................................................................................. 11
Table of Contents ................................................................................................... 13
List of Figures ........................................................................................................ 17
List of Tables .......................................................................................................... 19
Chapter 1
Getting Started ....................................................................................................... 21
1.1 About Your G-302 v3 ........................................................................................21
1.1.1 Windows Vista Users ................................................................................21
1.1.2 Application Overview ................................................................................21
1.1.2.1 Infrastructure ...................................................................................22
1.1.2.2 Ad-Hoc ............................................................................................22
1.2 G-302 v3 Hardware and Utility Installation .........................................................23
1.3 Configuration Methods ......................................................................................23
1.4 Windows XP Users Only ....................................................................................23
1.5 Accessing the ZyXEL Utility ..............................................................................24
1.6 ZyXEL Utility Screen Summary ..........................................................................25
1.7 Connecting to a Wireless LAN ...........................................................................25
1.7.1 Site Survey ...............................................................................................25
Chapter 2
Wireless LAN Network ........................................................................................... 29
2.1 Wireless LAN Overview ....................................................................................29
2.1.1 SSID .........................................................................................................29
2.1.2 Channel ....................................................................................................29
2.1.3 Transmission Rate ....................................................................................29
2.2 Wireless LAN Security Overview ......................................................................29
2.2.1 Data Encryption with WEP .......................................................................30
2.2.2 IEEE 802.1x ..............................................................................................30
2.2.2.1 EAP Authentication .........................................................................30
Table of Contents
13
ZyXEL G-302 v3 User’s Guide
2.2.3 WPA and WPA2 ........................................................................................31
2.2.3.1 Encryption ......................................................................................31
2.2.3.2 User Authentication ........................................................................31
2.2.4 WPA(2)-PSK Application Example ...........................................................31
2.2.5 WPA(2) with RADIUS Application Example ..............................................32
2.3 Authentication Type ............................................................................................33
2.4 Preamble Type ..................................................................................................33
Chapter 3
ZyXEL Utility Configuration .................................................................................. 35
3.1 The Link Info Screen .........................................................................................35
3.1.1 Trend Chart ..............................................................................................36
3.2 The Site Survey Screen ....................................................................................37
3.2.1 Connecting to a WLAN Network ..............................................................38
3.2.2 Security Settings .......................................................................................38
3.2.2.1 WEP Encryption ..............................................................................39
3.2.2.2 WPA/WPA2 .....................................................................................40
3.2.2.3 WPA-PSK/WPA2-PSK .....................................................................41
3.2.3 Confirm Save Screen ................................................................................42
3.3 The Profile Screen .............................................................................................42
3.3.1 Adding a New Profile ................................................................................44
3.4 The Adapter Screen ...........................................................................................48
Chapter 4
Maintenance ........................................................................................................... 49
4.1 The About Screen .............................................................................................49
4.2 Uninstalling the ZyXEL Utility ............................................................................49
4.3 Upgrading the ZyXEL Utility ..............................................................................50
Chapter 5
Troubleshooting .................................................................................................. 51
5.1 Problems Starting the ZyXEL Utility ...................................................................51
5.2 Problem with the Link Quality .............................................................................51
5.3 Problems Communicating With Other Computers .............................................52
5.4 Windows Vista Users - How To Start WLAN AutoConfig ....................................52
Appendix A
Product Specifications .......................................................................................... 55
Appendix B
Management with Wireless Zero Configuration .................................................. 57
Appendix C
Wireless Security ................................................................................................... 69
14
Table of Contents
ZyXEL G-302 v3 User’s Guide
Index........................................................................................................................ 75
Table of Contents
15
ZyXEL G-302 v3 User’s Guide
16
Table of Contents
ZyXEL G-302 v3 User’s Guide
List of Figures
Figure 1 Application: Infrastructure ....................................................................... 22
Figure 2 Application: Ad-Hoc ................................................................................ 23
Figure 3 Enable WZC ............................................................................................. 24
Figure 4 Enable ZyXEL Utility ................................................................................ 24
Figure 5 ZyXEL Utility: System Tray Icon .............................................................. 24
Figure 6 Menu Summary ....................................................................................... 25
Figure 7 ZyXEL Utility: Site Survey ....................................................................... 26
Figure 8 ZyXEL Utility: Security Settings .............................................................. 26
Figure 9 ZyXEL Utility: Link Info ............................................................................ 27
Figure 10 WPA(2)-PSK Authentication .................................................................. 32
Figure 11 WPA(2) with RADIUS Application Example ........................................... 33
Figure 12 Link Info ................................................................................................ 35
Figure 13 Link Info: Trend Chart ........................................................................... 36
Figure 14 Site Survey ............................................................................................ 37
Figure 15 Security Settings: WEP ........................................................................ 39
Figure 16 Security Settings: WPA/WPA2 ............................................................... 40
Figure 17 Security Settings: WPA-PSK/WPA2-PSK .............................................. 41
Figure 18 Confirm Save Screen ............................................................................ 42
Figure 19 Profile Screen ....................................................................................... 43
Figure 20 Profile: Add New Profile ........................................................................ 44
Figure 21 Profile: Wireless Setting: Select a Channel .......................................... 45
Figure 22 Profile: Security Setting: Encryption Type ............................................. 46
Figure 23 Profile: Security Setting ......................................................................... 47
Figure 24 Profile: Confirm New Settings ............................................................... 47
Figure 25 Profile: Activate the Profile .................................................................... 47
Figure 26 Adapter Screen ..................................................................................... 48
Figure 27 About ..................................................................................................... 49
Figure 28 Uninstall: Confirm ................................................................................. 50
Figure 29 Uninstall: Finish ..................................................................................... 50
Figure 30 WLAN AutoConfig: Services and Applications ..................................... 53
Figure 31 WLAN AutoConfig: Services
................................................................ 53
Figure 32 WLAN AutoConfig: More Actions ......................................................... 54
Figure 33 WLAN AutoConfig: More Actions ......................................................... 54
Figure 34 Windows XP SP2: WZC Not Available .................................................. 57
Figure 35 Windows XP SP2: System Tray Icon ..................................................... 58
Figure 36 Windows XP SP2: Wireless Network Connection Status ....................... 58
Figure 37 Windows XP SP1: Wireless Network Connection Status ....................... 59
Figure 38 Windows XP SP2: Wireless Network Connection .................................. 59
List of Figures
17
ZyXEL G-302 v3 User’s Guide
Figure 39 Windows XP SP1: Wireless Network Connection Properties ................ 60
Figure 40 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK .. 61
Figure 41 Windows XP SP2: Wireless Network Connection: No Security ............. 61
Figure 42 Windows XP: Wireless (network) properties: Association ..................... 62
Figure 43 Windows XP: Wireless (network) properties: Authentication ................. 63
Figure 44 Windows XP: Protected EAP Properties ................................................ 64
Figure 45 Windows XP: Smart Card or other Certificate Properties ...................... 65
Figure 46 Windows XP SP2: Wireless Networks: Preferred Networks .................. 67
Figure 47 Windows XP SP1: Wireless Networks: Preferred Networks .................. 67
Figure 48 WPA-PSK Authentication ....................................................................... 73
Figure 49 WPA(2) with RADIUS Application Example ........................................... 73
18
List of Figures
ZyXEL G-302 v3 User’s Guide
List of Tables
Table 1 ZyXEL Utility: System Tray Icon ............................................................... 24
Table 2 ZyXEL Utility: Menu Screen Summary ..................................................... 25
Table 3 Link Info .................................................................................................... 35
Table 4 Link Info: Trend Chart ............................................................................... 37
Table 5 Site Survey ............................................................................................... 37
Table 6 Security Settings: WEP ............................................................................ 39
Table 7 Security Settings: WPA/WPA2 .................................................................. 40
Table 8 Security Settings: WPA-PSK/WPA2-PSK ................................................. 41
Table 9 Confirm Save Screen ............................................................................... 42
Table 10 Profile Screen ......................................................................................... 43
Table 11 Profile: Add New Profile .......................................................................... 44
Table 12 Profile: Wireless Setting: Select a Channel ............................................ 46
Table 13 Adapter ................................................................................................... 48
Table 14 About ...................................................................................................... 49
Table 15 Troubleshooting Starting ZyXEL Utility ................................................... 51
Table 16 Troubleshooting Link Quality .................................................................. 51
Table 17 Troubleshooting Communication Problem .............................................. 52
Table 18 Product Specifications ............................................................................ 55
Table 19 Windows XP SP2: System Tray Icon ...................................................... 58
Table 20 Windows XP SP2: Wireless Network Connection .................................. 60
Table 21 Windows XP: Wireless Networks ........................................................... 61
Table 22 Windows XP: Wireless (network) properties: Association ...................... 62
Table 23 Windows XP: Wireless (network) properties: Authentication .................. 63
Table 24 Windows XP: Protected EAP Properties ................................................ 65
Table 25 Windows XP: Smart Card or other Certificate Properties ....................... 66
Table 26 Comparison of EAP Authentication Types .............................................. 70
Table 27 Wireless Security Relational Matrix ........................................................ 74
List of Tables
19
ZyXEL G-302 v3 User’s Guide
20
List of Tables
ZyXEL G-302 v3 User’s Guide
CHAPTER 1
Getting Started
This chapter introduces the G-302 v3 and prepares you to use the ZyXEL utility.
1.1 About Your G-302 v3
The G-302 v3 is an IEEE 802.11b/g compliant wireless LAN adapter.
The following lists the main features of your G-302 v3. See the product specifications in the
appendix for detailed features.
• Automatic rate selection.
• Security: WEP (Wired Equivalent Privacy), WPA-PSK, WPA (Wi-Fi Protected Access),
WPA2-PSK and WPA2
Note: You can use WPA and WPA2 with the G-302 v3 only on Microsoft Windows XP
or Windows 2000. At the time of writing WPA and WPA2 is not yet available on
Windows Vista.
• A built-in antenna
• Driver and utility support for Windows 98 Second Edition, Windows ME, Windows
2000, Windows XP and Windows Vista.
1.1.1 Windows Vista Users
At the time of writing these functions are not yet available on Windows Vista:
• WPA and WPA2 security settings (Section 3.2.2.2 on page 40)
Also please note that the WLAN AutoConfig service must be running for the Configuration
Utility to work in Windows Vista. See Section 5.4 on page 52 for more information.
Note: Please use only the G-302 v3 Configuration Utility to configure your wireless
profiles. At the time of writing it is not recommended to use WLAN AutoConfig
and the Configuration Utility alternately.
1.1.2 Application Overview
This section describes some network applications for the G-302 v3.
Chapter 1 Getting Started
21
ZyXEL G-302 v3 User’s Guide
1.1.2.1 Infrastructure
To connect to a network via an Access Point (AP), set the G-302 v3 network type to
Infrastructure. Through the AP, you can access the Internet or the wired network behind the
AP.
Figure 1 Application: Infrastructure
1.1.2.2 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.
22
Chapter 1 Getting Started
ZyXEL G-302 v3 User’s Guide
Figure 2 Application: Ad-Hoc
1.2 G-302 v3 Hardware and Utility Installation
Follow the instructions in the Quick Start Guide to install the ZyXEL utility and make
hardware connections.
1.3 Configuration Methods
To configure your G-302 v3, use one of the following applications:
• Wireless Zero Configuration (WZC) (recommended for Windows XP)
• ZyXEL Utility (This guide shows you how to configure the G-302 v3 using the ZyXEL
utility)
• Odyssey Client Manager (not supplied)
Refer to the Odyssey Client Manager documentation for more information.
Note: Do NOT use WZC or the Odyssey Client Manager and the ZyXEL utility at the
same time.
1.4 Windows XP Users Only
Note: When you use the ZyXEL utility, it automatically disables the Windows XP
wireless configuration tool.
To disable the ZyXEL utility and use WZC to configure the G-302 v3, right-click the utility
icon ( ) in the system tray and select Use Windows Zero Configuration. To activate the
ZyXEL utility again, double-click the
icon and click OK.
Chapter 1 Getting Started
23
ZyXEL G-302 v3 User’s Guide
Figure 3 Enable WZC
Figure 4 Enable ZyXEL Utility
Refer to the appendices on how to use WZC to manage the G-302 v3.
1.5 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 G-302 v3 is installed
properly.
When you use the ZyXEL utility, it automatically disables the Windows XP
wireless configuration tool.
Figure 5 ZyXEL Utility: System Tray Icon
The color of the ZyXEL utility system tray icon indicates the status of the G-302 v3. Refer to
the following table for details.
Table 1 ZyXEL Utility: System Tray Icon
COLOR
DESCRIPTION
Red
The G-302 v3 is not connected to a wireless network or is searching for an available
wireless network.
Green
The G-302 v3 is connected to a wireless network.
Double-click on the ZyXEL wireless LAN utility icon in the system tray to open the ZyXEL
utility. The ZyXEL utility screens are similar in all Microsoft Windows versions. Screens for
Windows XP are shown in this User’s Guide.
Note: Click the
window.
24
icon (located in the top right corner) to display the online help
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1.6 ZyXEL Utility Screen Summary
This sections describes the ZyXEL utility screens.
Figure 6 Menu Summary
The following table describes the menus.
Table 2 ZyXEL Utility: Menu Screen Summary
TAB
DESCRIPTION
Link Info
Use this screen to see your current connection status, configuration and data rate
statistics.
Site Survey
Use this screen to
• scan for a wireless network.
• configure wireless security (if activated on the selected network).
• connect to a wireless network.
Profile
Use this screen to add, delete, edit or activate a profile with a set of wireless and
security settings.
Adapter
Use this screen to configure a transfer rate and enable power saving.
1.7 Connecting to a Wireless LAN
The 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 G-302 v3
automatically connect to a specific network. Otherwise, configure nothing and leave the G302 v3 to automatically scan for and connect to any other available network without security.
See the next chapters for detailed field descriptions.
1.7.1 Site Survey
After you install the ZyXEL utility and then insert the G-302 v3, follow the steps below to
connect to a network using the Site Survey screen.
1 Make sure a wireless network is available and within range.
2 Open the ZyXEL utility and click the Site Survey tab to open the screen as shown next.
3 Click Scan to search for available wireless networks.
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Figure 7 ZyXEL Utility: Site Survey
4 To join a network, either click an entry in the table and then click Connect.
5 If the wireless security is activated for the selected wireless network, the Security
Settings 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 G302 v3 cannot connect to a network.
Figure 8 ZyXEL Utility: Security Settings
6 Verify that you have successfully connected to the selected network and check the
network information in the Link Info screen. If the G-302 v3 is not connected to a
network, the fields in this screen are blank.
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Figure 9 ZyXEL Utility: Link Info
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CHAPTER 2
Wireless LAN Network
This 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 SSID
The 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 Channel
A radio frequency used by a wireless device is called a channel.
2.1.3 Transmission Rate
When the communication quality drops below a certain level, the G-302 v3 automatically
switches to a lower transmission (data) rate. Transmission at lower data speeds is usually more
reliable. When the communication quality improves again, the G-302 v3 gradually increases
the transmission (data) rate again until it reaches the highest available transmission rate.
Note: Actual speeds attained also depend on the distance from the AP, noise, etc.
2.2 Wireless LAN Security Overview
Wireless LAN security is vital to your network to protect wireless communications.
Configure the wireless LAN security using the Profile Security Settings screen. If you do not
enable any wireless security on your G-302 v3, the G-302 v3’s wireless communications are
accessible to any wireless networking device that is in the coverage area.
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2.2.1 Data Encryption with WEP
WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between
the G-302 v3 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 G-302 v3.
• Automatic WEP key generation based on a “password phrase” called a passphrase. The
passphrase is case sensitive. You must use the same passphrase for all WLAN adapters
with this feature in the same WLAN.
For WLAN adapters without the passphrase feature, you can still take advantage of this
feature by writing down the four automatically generated WEP keys from the Security
Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the
other WLAN adapter(s).
• Enter the WEP keys manually.
Your G-302 v3 allows you to configure up to four 64-bit or 128-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 G-302 v3 supports EAP-TLS, EAP-TTLS and EAP-PEAP.
Refer to Appendix C on page 69 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.
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2.2.3 WPA and WPA2
Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE
802.11i) is a wireless security standard that defines stronger encryption, authentication and
key management than WPA.
Key differences between WPA(2) and WEP are improved data encryption and user
authentication.
If both an AP and the wireless clients support WPA2 and you have an external RADIUS
server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server,
you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical)
password entered into each access point, wireless gateway and wireless client. As long as the
passwords match, a wireless client will be granted access to a WLAN.
If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending
on whether you have an external RADIUS server or not.
Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is
less secure than WPA or WPA2.
2.2.3.1 Encryption
Both WPA and WPA2 improve data encryption by using Temporal Key Integrity Protocol
(TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA and WPA2 use Advanced
Encryption Standard (AES) in the Counter mode with Cipher block chaining Message
authentication code Protocol (CCMP) to offer stronger encryption than TKIP.
The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only
difference between the two is that WPA(2)-PSK uses a simple common password, instead of
user-specific credentials. The common-password approach makes WPA(2)-PSK susceptible to
brute-force password-guessing attacks but it’s still an improvement over WEP as it employs a
consistent, single, alphanumeric password to derive a PMK which is used to generate unique
temporal encryption keys. This prevent all wireless devices sharing the same encryption keys.
(a weakness of WEP)
2.2.3.2 User Authentication
WPA and WPA2 apply IEEE 802.1x and Extensible Authentication Protocol (EAP) to
authenticate wireless stations using an external RADIUS database. WPA2 reduces the number
of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time
required to connect to a network. Other WPA2 authentication features that are different from
WPA include key caching and pre-authentication. These two features are optional and may not
be supported in all wireless devices.
2.2.4 WPA(2)-PSK Application Example
A WPA(2)-PSK application looks as follows.
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1 First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key
(PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters
(including spaces and symbols).
2 The AP checks each client's password and (only) allows it to join the network if it
matches its password.
3 The AP and wireless clients use the pre-shared key to generate a common PMK.
4 The AP and wireless clients use the TKIP or AES encryption process to encrypt data
exchanged between them.
Figure 10 WPA(2)-PSK Authentication
2.2.5 WPA(2) with RADIUS Application Example
You need the IP address of the RADIUS server, its port number (default is 1812), and the
RADIUS shared secret. A WPA(2)-RADIUS application example with an external RADIUS
server looks as follows. "A" is the RADIUS server. "DS" is the distribution system.
1 The AP passes the wireless client's authentication request to the RADIUS server.
2 The RADIUS server then checks the user's identification against its database and grants
or denies network access accordingly.
3 The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then
sets up a key hierarchy and management system, using the pair-wise key to dynamically
generate unique data encryption keys to encrypt every data packet that is wirelessly
communicated between the AP and the wireless clients.
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Figure 11 WPA(2) with RADIUS Application Example
2.3 Authentication Type
The IEEE 802.11b/g standard describes a simple authentication method between the wireless
stations and AP. Two authentication 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 or peer computer do not share a secret key. Thus the
wireless stations can associate with any AP or peer computer and listen to any transmitted
data that is not unencrypted.
• Shared key mode involves a shared secret key to authenticate the wireless station to the
AP or peer computer. This requires you to enable the wireless LAN security and use same
settings on both the wireless station and the AP or peer computer.
2.4 Preamble Type
Preamble 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 Auto to have the G-302 v3 automatically use short preamble when access point/
wireless stations support it, otherwise the G-302 v3 uses long preamble.
Note: The G-302 v3 and the access point/wireless stations MUST use the same
preamble mode in order to communicate.
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CHAPTER 3
ZyXEL Utility Configuration
This chapter shows you how to configure your G-302 v3 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 G-302 v3.
Figure 12 Link Info
The following table describes the labels in this screen.
Table 3 Link Info
LABEL
DESCRIPTION
Wireless Network
Status
Profile 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 G-302 v3 is associated.
AP MAC Address
This field displays the MAC address of the wireless device to which the G-302 v3 is
associated.
Network Type
This field displays the network type (Infrastructure or Ad Hoc) of the wireless
network.
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Table 3 Link Info (continued)
LABEL
DESCRIPTION
Transmission Rate This field displays the current transmission rate of the G-302 v3 in megabits per
second (Mbps).
Security
This field displays whether data encryption is activated (WEP, WPA, WPA2, WPAPSK or WPA2-PSK) or inactive (DISABLE).
Channel
This field displays the radio channel the G-302 v3 is currently using.
Statistics
Transmit Rate
This field displays the current data transmission rate in kilobits per second (Kbps).
Receive Rate
This field displays the current data receiving rate in kilobits per second (Kbps).
Authentication
This field displays the authentication method of the G-302 v3.
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 G-302 v3.
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.
3.1.1 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 13 Link Info: Trend Chart
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The following table describes the labels in this screen.
Table 4 Link Info: Trend Chart
LABEL
DESCRIPTION
Transmit
This field displays the current data transmission rate in kilobits per second (Kbps).
Receive
This field displays the current data receiving rate in kilobits per second (Kbps).
3.2 The Site Survey Screen
Use the Site Survey screen to scan for and connect to a wireless network automatically.
Figure 14 Site Survey
The following table describes the labels in this screen.
Table 5 Site Survey
LABEL
DESCRIPTION
Available Network
List
Click a column heading to sort the entries.
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless
security is deactivated.
,
,
or
SSID
This field displays the SSID (Service Set IDentifier) of each wireless device.
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Table 5 Site Survey (continued)
LABEL
DESCRIPTION
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.
Network Mode
This fields displays the network standard (802.11g or 802.11b) of the wireless
device.
Channel
This field displays the channel number used by each wireless device.
Security
This field shows whether data encryption is activated (WEP, WPA, WPA2, WPAPSK or WPA2-PSK) or inactive (DISABLE).
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.
3.2.1 Connecting to a WLAN Network
Follow the steps below to connect to a WLAN network using the Site Survey screen.
1 Click Scan to search for all available wireless networks within range.
2 To join a network, click an entry in the table to select a wireless network and then click
Connect.
3 If 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 38 for more information.
Otherwise click the Back or Exit button and connect to another wireless network without
data encryption.
4 Verify 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 G-302 v3 to connect to a network with wireless security activated and
the security settings are disabled on the G-302 v3, the screen varies according to the
encryption method used by the selected network.
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3.2.2.1 WEP Encryption
Figure 15 Security Settings: WEP
The following table describes the labels in this screen.
Table 6 Security Settings: WEP
LABEL
DESCRIPTION
WEP
Select 64 Bits or 128 Bits to activate WEP encryption and then fill in the related
fields.
Authentication
Type
Select an authentication type. Choices are Open and Shared. Refer to Section 2.3
on page 33 for more information.
Pass Phrase
Enter a passphrase of up to 63 case-sensitive printable characters. As you enter
the passphrase, the G-302 v3 automatically generates four different WEP keys
and displays it in the key field below. Refer to Section 2.2.1 on page 30 for more
information.
At the time of writing, you cannot use passphrase to generate 152-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 Select this option if you want to manually enter the WEP keys. Enter the WEP key
number between 1 in the field provided.
and 4)
If you select 64 Bits in the WEP field.
Enter either 10 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 11AA22BB33) for HEX key type.
or
Enter 5 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey) for ASCII key type.
If you select 128 Bits in the WEP field,
Enter either 26 hexadecimal digits in the range of “A-F”, “a-f” and “0-9” (for
example, 00112233445566778899AABBCC) for HEX key type
or
Enter 13 ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0-9”
(for example, MyKey12345678) for ASCII key type.
Note: The values for the WEP keys must be set up exactly the
same on all wireless devices in the same wireless LAN.
ASCII WEP keys are case sensitive.
Back
Click Back to go to the Site Survey screen to select and connect to other network.
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Table 6 Security Settings: WEP (continued)
LABEL
DESCRIPTION
Next
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 3.2.3 on page 42.
Exit
Click Exit to return to the Site Survey screen without saving.
3.2.2.2 WPA/WPA2
Note: You can use WPA and WPA2 with the G-302 v3 only on Microsoft Windows XP
or Windows 2000. At the time of writing this function is not yet available on
Windows Vista.
Figure 16 Security Settings: WPA/WPA2
The following table describes the labels in this screen.
Table 7 Security Settings: WPA/WPA2
LABEL
DESCRIPTION
Encryption Type
The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are
the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses
a simple common password, instead of user-specific credentials.
Select the encryption type (TKIP or AES) for data encryption.
Refer to Section 2.2.3 on page 31 for more information.
Authentication
Type
Select an authentication method from the drop down list. Options are TLS, TTLS
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.
Certification
This field is only available when you select TLS in the Authentication Type field.
Select a certificate used by the authentication server to authenticate the G-302 v3.
Note: You must first have a wired connection to a network and
obtain the certificate(s) from a certificate authority (CA).
Validate Server
Certificate
40
Select the check box to check the certificate of the authentication server.
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Table 7 Security Settings: WPA/WPA2
LABEL
DESCRIPTION
PEAP Inner EAP
This field is only available when you select PEAP in the Authentication Type field.
Select a PEAP protocol. Options are TLS and MS CHAP-V2.
TTLS Inner
authentication
This field is only available when you select TTLS in the Authentication Type field.
Select a TTLS protocol that the RADIUS server uses. Options are CHAP, MS
CHAP, MS CHAP-V2 and PAP.
Back
Click Back to go to the Site Survey screen to select and connect to other network.
Next
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 3.2.3 on page 42.
Exit
Click Exit to return to the Site Survey screen without saving.
3.2.2.3 WPA-PSK/WPA2-PSK
Note: You can use WPA and WPA2 with the G-302 v3 only in Microsoft Windows XP,
Windows Vista and Windows 2000.
Figure 17 Security Settings: WPA-PSK/WPA2-PSK
The following table describes the labels in this screen.
Table 8 Security Settings: WPA-PSK/WPA2-PSK
LABEL
DESCRIPTION
Encryption Type
The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are
the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses
a simple common password, instead of user-specific credentials.
Select the encryption type (TKIP or AES) for data encryption.
Refer to Section 2.2.3 on page 31 for more information.
Pre-Shared Key
Type a pre-shared key (same as the AP or peer device) of between 8 and 63 casesensitive ASCII characters (including spaces and symbols).
Back
Click Back to go to the Site Survey screen to select and connect to other network.
Next
Click Next to confirm your selections and advance to the Confirm Save screen.
Refer to Section 3.2.3 on page 42.
Exit
Click Exit to return to the Site Survey screen without saving.
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3.2.3 Confirm Save Screen
Use this screen to confirm and save the security settings.
Figure 18 Confirm Save Screen
The following table describes the labels in this screen.
Table 9 Confirm Save Screen
LABEL
DESCRIPTION
Network Name
(SSID)
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, WPAPSK or WPA2-PSK) or inactive (DISABLE).
Back
Click Back to return to the previous screen.
Save
Click Save to save the changes back to the G-302 v3 and display the Link Info
screen.
Exit
Click Exit to discard changes and return to the Site Survey screen.
3.3 The Profile Screen
A profile is a set of wireless parameters that you need to connect to a wireless network. With a
profile activated, each time you start the G-302 v3, it automatically scans for the specific SSID
and joins that network with the pre-defined wireless security settings. If the specified network
is not available, the G-302 v3 will be disconnected.
If you do not configure and activate a profile, each time you start the G-302 v3, the G-302 v3
uses the default profile to connect to any available network with security disabled.
The default profile is a profile that allows you to connect to any SSID without security.
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Click the Profile tab in the ZyXEL utility 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 19 Profile Screen
The following table describes the labels in this screen.
Table 10 Profile Screen
LABEL
DESCRIPTION
Profile List
Click a column heading to sort the entries.
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless
security is deactivated.
,
,
or
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.
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Table 10 Profile Screen (continued)
LABEL
DESCRIPTION
Profile Info
The following fields display detail information of the selected profile in the Profile
List table.
Network Type
This field displays the network type (Infrastructure or Ad Hoc) of the profile.
Channel
This field displays the channel number used by the profile.
Security
This field shows whether data encryption is activated (WEP, WPA, WPA-PSK,
WPA2, WPA2-PSK) or inactive (DISABLE).
3.3.1 Adding a New Profile
Follow the steps below to add a new profile.
1 Click Add in the Profile screen. An Add New Profile screen displays as shown next.
Click Next to continue.
Figure 20 Profile: Add New Profile
The following table describes the labels in this screen.
Table 11 Profile: Add New Profile
LABEL
DESCRIPTION
Add New Profile
44
Profile Name
Enter a descriptive name in this field.
SSID
Select an available wireless device in the Scan Info table and click Select, or enter
the SSID of the wireless device to which you want to associate in this field
manually. Otherwise, enter Any to have the G-302 v3 associate to or roam
between any infrastructure wireless networks.
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Table 11 Profile: Add New Profile (continued)
LABEL
DESCRIPTION
Network Type
Select the Infrastructure radio button to associate to an AP. Select the Ad-Hoc
radio button to associate to a peer computer.
Next
Click Next to go to the next screen.
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.
denotes that the wireless device is in infrastructure mode and the wireless
security is activated.
denotes that the wireless device is in infrastructure mode but the wireless
security is deactivated.
denotes that the wireless device is in Ad-Hoc mode and the wireless
security is activated.
denotes that the wireless device is in Ad-Hoc mode but the wireless security
is deactivated.
,
,
or
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 G-302 v3 associates to the selected
wireless network only.
2 If you select the Infrastructure network type in the previous screen, skip to step 3. If you
select the Ad-Hoc network type in the previous screen, a screen displays as follows.
Select a channel number and click Next to continue.
Figure 21 Profile: Wireless Setting: Select a Channel
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The following table describes the labels in this screen.
Table 12 Profile: Wireless Setting: Select a Channel
LABEL
DESCRIPTION
Wireless Setting
Ad-Hoc Channel
Select a channel number from the drop-down list box. To associate to an ad-hoc
network, you must use the same channel as the peer computer.
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.
3 If you select Infrastructure network type in the first screen, select WEP, WPA, WPA2,
WPA-PSK or WPA2-PSK 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 G-302 v3 to communicate with the
access points or other peer wireless computers without any data encryption and skip to
step 6.
Figure 22 Profile: Security Setting: Encryption Type
4 The screen varies depending on the encryption method you select in the previous screen.
The settings must be exactly the same on the APs or other peer wireless computers as
they are on the G-302 v3. Refer to Section 3.2.2 on page 38 for detailed information on
wireless security configuration.
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Figure 23 Profile: Security Setting
5 This read-only screen shows a summary of the new profile settings. Verify that the
settings are correct. Click Save to save and go to the next screen. Click Back to return to
the previous screen. Otherwise, click Exit to go back to the Profile screen without saving.
Figure 24 Profile: Confirm New Settings
6 To 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 25 Profile: Activate the Profile
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3.4 The Adapter Screen
To set the advanced features on the G-302 v3, click the Adapter tab.
Figure 26 Adapter Screen
The following table describes the labels in this screen.
Table 13 Adapter
LABEL
DESCRIPTION
Adapter Setting
48
Wireless Mode
Select 802.11b Only to have the G-302 v3 connect to an IEEE 802.11b wireless
device.
Select 802.11b/g Mixed to have the G-302 v3 connect to either an IEEE 802.11g
or IEEE 802.11b wireless device
Preamble Mode
Select a preamble type. Choices are Long, Short and Auto.The default setting is
Auto.
Refer to Section 2.4 on page 33 for more information.
Save
Click Save to save the changes back to the G-302 v3.
Chapter 3 ZyXEL Utility Configuration
ZyXEL G-302 v3 User’s Guide
CHAPTER 4
Maintenance
This chapter describes how to uninstall or upgrade the ZyXEL utility.
4.1 The About Screen
The About screen displays related version numbers of the G-302 v3. To display the screen as
shown below, click the about (
) button.
Figure 27 About
The following table describes the read-only fields in this screen.
Table 14 About
LABEL
DESCRIPTION
Driver Version
This field displays the version number of the G-302 v3 driver.
Utility Version
This field displays the version number of the ZyXEL utility.
4.2 Uninstalling the ZyXEL Utility
Follow the steps below to remove (or uninstall) the ZyXEL utility from your computer.
1 Click Start, Programs, ZyXEL G-302 v3 Utility, Uninstall ZyXEL G-302 v3 Utility.
2 When prompted, click OK or Yes to remove the driver and the utility software.
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Figure 28 Uninstall: Confirm
3 Click Finish to complete uninstalling the software and restart the computer when
prompted.
Figure 29 Uninstall: Finish
4.3 Upgrading the ZyXEL Utility
Note: Before you uninstall the ZyXEL utility, take note of your current wireless
configurations.
To perform the upgrade, follow the steps below.
1 Download the latest version of the utility from the ZyXEL web site and save the file on
your computer.
2 Follow the steps in Section 4.2 on page 49 to remove the current ZyXEL utility from your
computer.
3 Restart your computer when prompted.
4 Disconnect the G-302 v3 from your computer.
5 Double-click on the setup program for the new utility to start the ZyXEL utility
installation.
6 Insert the G-302 v3 and check the version numbers in the About screen to make sure the
new utility is installed properly.
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CHAPTER 5
Troubleshooting
This chapter covers potential problems and the possible remedies. After each problem
description, some instructions are provided to help you to diagnose and to solve the problem.
5.1 Problems Starting the ZyXEL Utility
Table 15 Troubleshooting Starting ZyXEL Utility
PROBLEM
CORRECTIVE ACTION
Cannot start the
ZyXEL wireless
LAN utility
Make sure the G-302 v3 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 G-302 v3 under Network Adapter. (Steps may vary depending on the
version of Windows).
Install the G-302 v3 in another computer.
If you are using Windows Vista, make sure WLAN Autoconfig is running. To do this
see Section 5.4 on page 52.
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.
5.2 Problem with the Link Quality
Table 16 Troubleshooting Link Quality
PROBLEM
CORRECTIVE ACTION
The link quality
and/or signal
strength is poor all
the time.
Search and connect to another AP with a better link quality using the Site Survey
screen.
Move your computer closer to the AP or the peer computer(s) within the
transmission range.
There may be too much radio interference (for example microwave or another AP
using the same channel) around your wireless network. Relocate or reduce the
radio interference.
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5.3 Problems Communicating With Other Computers
Table 17 Troubleshooting Communication Problem
PROBLEM
CORRECTIVE ACTION
In wireless station
mode, the
computer with the
G-302 v3 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 G-302 v3 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 G-302 v3 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.
5.4 Windows Vista Users - How To Start WLAN AutoConfig
The G-302 v3 Configuration Utility in Windows Vista requires the WLAN AutoConfig
service to be turned on for it to function. If the Configuration Utility is not working it is
possible the WLAN AutoConfig service is not running. In this case follow the steps below to
start the service.
Note: Please use only the G-302 v3 Configuration Utility to configure your wireless
profiles. At the time of writing it is not recommended to use WLAN AutoConfig
and the Configuration Utility alternately.
1 Click Start on your desktop and right click Computer. Click on Manage in the menu to
bring up the Computer Management screen.
Note: At this point Windows Vista may ask for permission to perform this action. Click
Continue to proceed.
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Figure 30 WLAN AutoConfig: Services and Applications
2 On the Computer Management screen, click Services and Applications on the left side
to expand the menu.
3 Click on Services. This will display the Windows Vista services in the middle part of the
screen.
Figure 31 WLAN AutoConfig: Services
4 Browse for WLAN AutoConfig and check the Status field. If it is blank then the WLAN
AutoConfig is not running. Click Start the service in the top left part of the middle
screen to start WLAN AutoConfig.
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Figure 32 WLAN AutoConfig: More Actions
5 You may also wish to start WLAN AutoConfig automatically when you start your
computer. You can do this by setting the Startup Type as Automatic. On the right side of
the screen click More Actions under WLAN AutoConfig and click Properties.
Figure 33 WLAN AutoConfig: More Actions
6 Open the Startup Type drop down box and select Automatic. To save your changes click
Apply and then OK to exit the screen.
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APPENDIX A
Product Specifications
Table 18 Product Specifications
PHYSICAL AND ENVIRONMENTAL
Product Name
ZyXEL G-302 v3 802.11g Wireless PCI Adapter
Interface
3.3V 32-bit PCI V2.2
Standards
IEEE 802.11b
IEEE 802.11g
Network Architectures
Infrastructure
Ad-Hoc
Antenna
One 2 dBi Dipole Antenna
Operating Temperature
0 ~ 50 degrees Centigrade
Storage Temperature
-10 ~ 70 degrees Centigrade
Operating Humidity
20 ~ 95% (non-condensing)
Storage Humidity
20 ~ 95% (non-condensing)
Power Consumption
TX: <340mA
Voltage
3.3V
Weight
45.5g
Dimension
(W) 18 mm × (L) 122 mm × (H) 120 mm
RX: <330mA
RADIO SPECIFICATIONS
Media Access Protocol
IEEE 802.11
Frequency
USA (FCC) & Canada 11 Channels: 2.412GHz~2.462GHz
Europe (ETSI) 13 Channels: 2.412GHz~2.472GHz
Japan (TELEC) 14 Channels: 2.412GHz~2.483GHz
Data 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 Mbps
Modulation
IEEE 802.11g: OFDM (64QAM, 16QAM, QPSK, BPSK)
IEEE 802.11b: PBCC, Direct Sequence Spread Spectrum (DSSS),
(CCK, DQPSK, DBPSK)
Output Power
14dBm (typical) at 54 Mbps
17dBm (typical) at 11 Mbps
RX Sensitivity
IEEE 802.11g (OFDM): 54 Mbps: < -69 dBm (typical)
IEEE 802.11b (CCK): 11 Mbps: < -86 dBm (typical)
SOFTWARE SPECIFICATIONS
Device Drivers
Appendix A Product Specifications
Microsoft Windows 98 Second Edition, Windows ME, Windows 2000,
Windows XP, Windows Vista
55
ZyXEL G-302 v3 User’s Guide
Table 18 Product Specifications (continued)
56
ZyXEL Utility
ZyXEL Wireless Configuration Tool
Security
64/128/256-bit WEP
WPA/WPA-PSK/WPA2/WPA2-PSK
IEEE 802.1x
Appendix A Product Specifications
ZyXEL G-302 v3 User’s Guide
APPENDIX B
Management with Wireless Zero
Configuration
This 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 Configuration
Make 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 53.
If you see the following screen, refer to article 871122 on the Microsoft web site for
information on starting WZC.
Figure 34 Windows XP SP2: WZC Not Available
Appendix B Management with Wireless Zero Configuration
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Connecting to a Wireless Network
1 Double-click the network icon for wireless connections in the system tray to open the
Wireless Network Connection Status screen.
Figure 35 Windows XP SP2: System Tray Icon
The 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.
Table 19 Windows XP SP2: System Tray Icon
ICON
DESCRIPTION
The 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.
2 Windows XP SP2: In the Wireless Network Connection Status screen, click View
Wireless Networks to open the Wireless Network Connection screen.
Figure 36 Windows XP SP2: Wireless Network Connection Status
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Windows XP SP1: In the Wireless Network Connection Status screen, click Properties
and the Wireless Networks tab to open the Wireless Network Connection Properties
screen.
Figure 37 Windows XP SP1: Wireless Network Connection Status
3 Windows XP SP2: Click Refresh network list to reload and search for available wireless
devices within transmission range. Select a wireless network in the list and click Connect
to join the selected wireless network.
Figure 38 Windows XP SP2: Wireless Network Connection
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The following table describes the icons in the wireless network list.
Table 20 Windows XP SP2: Wireless Network Connection
ICON
DESCRIPTION
This denotes that wireless security is activated for the wireless network.
This denotes that this wireless network is your preferred network. Ordering your preferred
networks is important because the 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.
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 39 Windows XP SP1: Wireless Network Connection Properties
4 4.Windows XP SP2: If the wireless security is activated for the selected wireless network,
the Wireless Network Connection screen displays. You must set the related fields in the
Wireless Network Connection screen to the same security settings as the associated AP
and click Connect. Refer to the section about security settings for more information.
Otherwise click Cancel and connect to another wireless network without data encryption.
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If there is no security activated for the selected wireless network, a warning screen
appears. Click Connect Anyway if wireless security is not your concern.
Figure 40 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK
Figure 41 Windows XP SP2: Wireless Network Connection: No Security
5 Verify that you have successfully connected to the selected network and check the
connection status in the wireless network list or the connection icon in the Preferred
networks or Available networks list.
The following table describes the connection icons.
Table 21 Windows XP: Wireless Networks
ICON
DESCRIPTION
This 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.
Security Settings
When 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.
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Association
Select a network in the Preferred networks list and click Properties to view or configure
security.
Figure 42 Windows XP: Wireless (network) properties: Association
The following table describes the labels in this screen.
Table 22 Windows XP: Wireless (network) properties: Association
62
LABEL
DESCRIPTION
Network name
(SSID)
This field displays the SSID (Service Set IDentifier) of each wireless network.
Network
Authentication
This field automatically shows the authentication method (Share, Open, WPA or
WPA-PSK) used by the selected network.
Data Encryption
This field automatically shows the encryption type (TKIP, WEP or Disable) used by
the selected network.
Network Key
Enter the pre-shared key or WEP key.
The values for the keys must be set up exactly the same on all wireless devices in
the same wireless LAN.
Confirm network
key
Enter the key again for confirmation.
Key index
(advanced)
Select a default WEP key to use for data encryption.
This field is available only when the network use WEP encryption method and the
The key is provided for me automatically check box is not selected.
The key is
provided for me
automatically
If this check box is selected, the wireless AP assigns the ZyXEL wireless LAN
adapter a key.
Appendix B Management with Wireless Zero Configuration
ZyXEL G-302 v3 User’s Guide
Table 22 Windows XP: Wireless (network) properties: Association (continued)
LABEL
DESCRIPTION
If this check box is selected, you are connecting to another computer directly.
This is a
computer-tocomputer (ad hoc)
network; wireless
access points are
not used
OK
Click OK to save your changes.
Cancel
Click Cancel to leave this screen without saving any changes you may have made.
Authentication
Click the Authentication tab in the Wireless (network) properties screen to display the
screen shown next. The fields on this screen are grayed out when the network is in Ad-Hoc
mode or data encryption is disabled.
Figure 43 Windows XP: Wireless (network) properties: Authentication
The following table describes the labels in this screen.
Table 23 Windows XP: Wireless (network) properties: Authentication
LABEL
DESCRIPTION
Enable IEEE
802.1x
authentication for
this network
This field displays whether the IEEE 802.1x authentication is active.
If the network authentication is set to Open in the previous screen, you can choose
to disable or enable this feature.
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.
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Table 23 Windows XP: Wireless (network) properties: Authentication (continued)
LABEL
DESCRIPTION
Authenticate as
computer when
computer
information is
available
Select this check box to have the computer send its information to the network for
authentication when a user is not logged on.
Authenticate as
guest when user
or computer
information is
unavailable
Select this check box to have the computer access to the network as a guest when
a user is not logged on or computer information is not available.
OK
Click OK to save your changes.
Cancel
Click Cancel to leave this screen without saving any changes you may have made.
Authentication Properties
Select an EAP authentication type in the Wireless (network) properties: Authentication
screen and click the Properties button to display the following screen.
Protected EAP Properties
Figure 44 Windows XP: Protected EAP Properties
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The following table describes the labels in this screen.
Table 24 Windows XP: Protected EAP Properties
LABEL
DESCRIPTION
Validate server
certificate
Select the check box to verify the certificate of the authentication server.
Connect to these
servers
Select the check box and specify a domain in the field below to have your
computer connect to a server which resides only within this domain.
Trusted Root
Certification
Authorities:
Select a trusted certification authority from the list below.
Do not prompt
user to authorize
new server or
trusted
certification
authorities.
Select this check box to verify a new authentication server or trusted CA without
prompting.
This field is available only if you installed the Windows XP server pack 2.
Select
Authentication
Method:
Select an authentication method from the drop-down list box and click Configure
to do settings.
Enable Fast
Reconnect
Select the check box to automatically reconnect to the network (without reauthentication) 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.
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.
Smart Card or other Certificate Properties
Figure 45 Windows XP: Smart Card or other Certificate Properties
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ZyXEL G-302 v3 User’s Guide
The following table describes the labels in this screen.
Table 25 Windows XP: Smart Card or other Certificate Properties
LABEL
DESCRIPTION
Use my smart card Select this check box to use the smart card for authentication.
Use a certificate
on this computer
Select this check box to use a certificate on your computer for authentication.
Validate server
certificate
Select the check box to check the certificate of the authentication server.
Connect to these
servers
Select the check box and specify a domain in the field below to have your
computer connect to a server which resides only within this domain.
Trusted Root
Certification
Authorities:
Select a trusted certification authority from the list below.
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.
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.
Ordering the Preferred Networks
Follow the steps below to manage your preferred networks.
1 Windows XP SP2: Click Change the order of preferred networks in the Wireless
Network Connection screen (see Figure 38 on page 59). The screen displays as shown.
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Appendix B Management with Wireless Zero Configuration
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Figure 46 Windows XP SP2: Wireless Networks: Preferred Networks
Windows XP SP1: In the Wireless Network Connection Status screen, click Properties
and the Wireless Networks tab to open the screen as shown.
Figure 47 Windows XP SP1: Wireless Networks: Preferred Networks
2 Whenever 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.
Appendix B Management with Wireless Zero Configuration
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68
Appendix B Management with Wireless Zero Configuration
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APPENDIX C
Wireless Security
Types of EAP Authentication
This section 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.
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EAP-TTLS (Tunneled Transport Layer Service)
EAP-TTLS is an extension of the EAP-TLS authentication that uses certificates for only the
server-side authentications to establish a secure connection. Client authentication is then done
by sending username and password through the secure connection, thus client identity is
protected. For client authentication, EAP-TTLS supports EAP methods and legacy
authentication methods such as PAP, CHAP, MS-CHAP and MS-CHAP v2.
PEAP (Protected EAP)
Like EAP-TTLS, server-side certificate authentication is used to establish a secure connection,
then use simple username and password methods through the secured connection to
authenticate the clients, thus hiding client identity. However, PEAP only supports EAP
methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card),
for client authentication. EAP-GTC is implemented only by Cisco.
LEAP
LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE
802.1x.
Dynamic WEP Key Exchange
The AP maps a unique key that is generated with the RADIUS server. This key expires when
the wireless connection times out, disconnects or reauthentication times out. A new WEP key
is generated each time reauthentication is performed.
If this feature is enabled, it is not necessary to configure a default encryption key in the
Wireless screen. You may still configure and store keys here, but they will not be used while
Dynamic WEP is enabled.
Note: EAP-MD5 cannot be used with Dynamic WEP Key Exchange
For added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use
dynamic keys for data encryption. They are often deployed in corporate environments, but for
public deployment, a simple user name and password pair is more practical. The following
table is a comparison of the features of authentication types.
Table 26 Comparison of EAP Authentication Types
70
EAP-MD5
EAP-TLS
EAP-TTLS
PEAP
LEAP
Mutual Authentication
No
Yes
Yes
Yes
Yes
Certificate – Client
No
Yes
Optional
Optional
No
Certificate – Server
No
Yes
Yes
Yes
No
Dynamic Key Exchange
No
Yes
Yes
Yes
Yes
Credential Integrity
None
Strong
Strong
Strong
Moderate
Appendix C Wireless Security
ZyXEL G-302 v3 User’s Guide
Table 26 Comparison of EAP Authentication Types
EAP-MD5
EAP-TLS
EAP-TTLS
PEAP
LEAP
Deployment Difficulty
Easy
Hard
Moderate
Moderate
Moderate
Client Identity Protection
No
No
Yes
Yes
No
WPA(2)
Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE
802.11i) is a wireless security standard that defines stronger encryption, authentication and
key management than WPA.
Key differences between WPA(2) and WEP are improved data encryption and user
authentication.
If both an AP and the wireless clients support WPA2 and you have an external RADIUS
server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server,
you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical)
password entered into each access point, wireless gateway and wireless client. As long as the
passwords match, a wireless client will be granted access to a WLAN.
If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending
on whether you have an external RADIUS server or not.
Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is
less secure than WPA or WPA2.
Encryption
Both WPA and WPA2 improve data encryption by using Temporal Key Integrity Protocol
(TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA and WPA2 use Advanced
Encryption Standard (AES) in the Counter mode with Cipher block chaining Message
authentication code Protocol (CCMP) to offer stronger encryption than TKIP.
TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication
server. AES (Advanced Encryption Standard) is a block cipher that uses a 256-bit
mathematical algorithm called Rijndael. They both include a per-packet key mixing function,
a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with
sequencing rules, and a re-keying mechanism.
WPA and WPA2 regularly change and rotate the encryption keys so that the same encryption
key is never used twice.
The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up
a key hierarchy and management system, using the PMK to dynamically generate unique data
encryption keys to encrypt every data packet that is wirelessly communicated between the AP
and the wireless stations. This all happens in the background automatically.
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The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data
packets, altering them and resending them. The MIC provides a strong mathematical function
in which the receiver and the transmitter each compute and then compare the MIC. If they do
not match, it is assumed that the data has been tampered with and the packet is dropped.
By generating unique data encryption keys for every data packet and by creating an integrity
checking mechanism (MIC), with TKIP and AES it is more difficult to decrypt data on a Wi-Fi
network than WEP and difficult for an intruder to break into the network.
The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only
difference between the two is that WPA(2)-PSK uses a simple common password, instead of
user-specific credentials. The common-password approach makes WPA(2)-PSK susceptible to
brute-force password-guessing attacks but it’s still an improvement over WEP as it employs a
consistent, single, alphanumeric password to derive a PMK which is used to generate unique
temporal encryption keys. This prevent all wireless devices sharing the same encryption keys.
(a weakness of WEP)
User Authentication
WPA and WPA2 apply IEEE 802.1x and Extensible Authentication Protocol (EAP) to
authenticate wireless stations using an external RADIUS database. WPA2 reduces the number
of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time
required to connect to a network. Other WPA2 authentication features that are different from
WPA include key caching and pre-authentication. These two features are optional and may not
be supported in all wireless devices.
Key caching allows a wireless client to store the PMK it derived through a sucessful
authentication with an AP. The wireless client uses the PMK when it tries to connect to the
same AP and does not need to go with the authentication process again.
Pre-authentication enables fast roaming by allowing the wireless client (already connecting to
an AP) to perform IEEE 802.1x authentication with another AP before connecting to it.
WPA(2)-PSK Application Example
A WPA(2)s-PSK application looks as follows.
1 First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key
(PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters
(including spaces and symbols).
2 The AP checks each client's password and (only) allows it to join the network if it
matches its password.
3 The AP and wireless clients use the pre-shared key to generate a common PMK.
4 The AP and wireless clients use the TKIP or AES encryption process to encrypt data
exchanged between them.
72
Appendix C Wireless Security
ZyXEL G-302 v3 User’s Guide
Figure 48 WPA-PSK Authentication
WPA(2) with RADIUS Application Example
You need the IP address of the RADIUS server, its port number (default is 1812), and the
RADIUS shared secret. A WPA(2) application example with an external RADIUS server
looks as follows. "A" is the RADIUS server. "DS" is the distribution system.
1 The AP passes the wireless client's authentication request to the RADIUS server.
2 The RADIUS server then checks the user's identification against its database and grants
or denies network access accordingly.
3 The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then
sets up a key hierarchy and management system, using the pair-wise key to dynamically
generate unique data encryption keys to encrypt every data packet that is wirelessly
communicated between the AP and the wireless clients.
Figure 49 WPA(2) with RADIUS Application Example
Appendix C Wireless Security
73
ZyXEL G-302 v3 User’s Guide
Security Parameters Summary
Refer to this table to see what other security parameters you should configure for each
Authentication Method/ key management protocol type. MAC address filters are not
dependent on how you configure these security features.
Table 27 Wireless Security Relational Matrix
AUTHENTICATION
ENCRYPTION ENTER
METHOD/ KEY
METHOD
MANUAL KEY
MANAGEMENT PROTOCOL
IEEE 802.1X
Open
Disable
None
No
Enable without Dynamic WEP Key
Open
Shared
74
WEP
WEP
No
Enable with Dynamic WEP Key
Yes
Enable without Dynamic WEP Key
Yes
Disable
No
Enable with Dynamic WEP Key
Yes
Enable without Dynamic WEP Key
Yes
Disable
WPA
TKIP/AES
No
Enable
WPA-PSK
TKIP/AES
Yes
Disable
WPA2
TKIP/AES
No
Enable
WPA2-PSK
TKIP/AES
Yes
Disable
Appendix C Wireless Security
ZyXEL G-302 v3 User’s Guide
Index
A
E
About 49
activating a profile 47
Adapter 48
Ad-Hoc 45
Advanced Encryption Standard 31, 71
advanced settings 48
antenna 21
antenna power output 55
authentication 39
authentication method
open system 33
shared key 33
Authentication Type 33
Encryption 31, 71
C
CA 69
Certificate Authority 69
certifications
notices 9
channel 29, 36, 38, 45
configuration method
important note 23
Odyssey Client Manager 23
Wireless Zero Configuration (WZC) 23
ZyXEL Utility 23
connecting to a WLAN 38
Copyright 7
creating a new profile 44
current configuration 35
current connection status 35
Customer Support 11
F
FCC 8
G
getting started 21
graphics icons key 4
H
hardware connections 23
I
initialization vector (IV) 71
installation
utility 21
Interference Statement 8
L
link information 35
D
data encryption 38
driver version 49
Dynamic WEP Key Exchange 70
Index
M
Message Integrity Check 31
Message Integrity Check (MIC) 71
MIC 31
75
ZyXEL G-302 v3 User’s Guide
N
Odyssey Client Manager 23
open system authentication 33
shared key authentication 33
signal strength 38
site survey 37
connecting to a WLAN network 38
scan 38
security settings 38
SSID 35, 37
SSID (Service Set Identity) 29
statistics 36
support CD 3
syntax conventions 3
P
T
Pairwise Master Key (PMK) 71
passphrase 30, 39
password phrase 30
preamble 48
product specifications 55
profile 35, 43
activation 47
add new 43, 44
delete 43
edit 43
information 44
Temporal Key Integrity Protocol 31
Temporal Key Integrity Protocol (TKIP) 71
TKIP 31
transmission rate 36
transmission rate (Tx Rate) 29
transmit key 39
Trend Chart 36
troubleshooting 51
link status 51
network communication 52
starting ZyXEL Utility 51
network type 35
O
Q
Quick Start Guide 3, 23
R
radio interference 51
real-time data traffic statistics 36
Related Documentation 3
U
uninstalling ZyXEL Utility 49
upgrading ZyXEL Utility 50
important step 50
User Authentication 31, 72
V
voltage 55
S
safety warnings 5
Scan Info 45
security 30, 56
data encryption 30
Security Parameters 74
Service 10
76
W
WEP 30, 39
manual setup 30, 39
passphrase 30, 39
WEP (Wired Equivalent Privacy) 30
Wi-Fi Protected Access 31, 71
Index
ZyXEL G-302 v3 User’s Guide
Windows Vista 21, 40, 52
Windows XP 23
wireless LAN
channel 29
introduction 29
security 29
SSID 29
Wireless LAN (WLAN) 29
wireless standard 55
wireless station mode
configuration 35
WLAN
Security parameters 74
WPA 31, 40, 71
WPA2 31, 40, 71
WPA2-Pre-Shared Key 31, 71
WPA2-PSK 31, 41, 71
WPA-PSK 31, 41, 71
WZC (Wireless Zero Configuration) 23
Z
ZyXEL Limited Warranty
Note 10
ZyXEL Utility 23
accessing 24
help 24
opening 24
system tray icon 24
upgrade 50
version 49
Index
77
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