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ZyXEL Communications ZyXEL ZyAIR G-120 User Manual

802.11g wireless cardbus card
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ZyXEL G-120
802.11g Wireless CardBus Card
User's Guide
Version 1.00
Edition 2
11/2006

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Summary of Contents for ZyXEL Communications ZyXEL ZyAIR G-120

  • Page 1 ZyXEL G-120 802.11g Wireless CardBus Card User’s Guide Version 1.00 Edition 2 11/2006...

  • Page 3: Copyright

    ZyXEL Communications Corporation. Published by ZyXEL Communications Corporation. All rights reserved.

  • Page 4: Certifications

    ZyXEL G-120 User’s Guide 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.
  • Page 5 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 product has been designed for the WLAN 2.4 GHz network throughout the EC region and Switzerland, with restrictions in France.

  • Page 6: Safety Warnings

    ZyXEL G-120 User’s Guide 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. •...

  • Page 7: Zyxel Limited Warranty

    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...

  • Page 8: Customer Support

    +36-1-3259100 +7-3272-590-698 www.zyxel.kz +7-3272-590-689 1-800-255-4101 www.us.zyxel.com +1-714-632-0882 +1-714-632-0858 ftp.us.zyxel.com REGULAR MAIL ZyXEL Communications Corp. 6 Innovation Road II Science Park Hsinchu 300 Taiwan ZyXEL Costa Rica Plaza Roble Escazú Etapa El Patio, Tercer Piso San José, Costa Rica ZyXEL Communications Czech s.r.o.
  • Page 9 +380-44-494-49-32 +44-1344 303044 www.zyxel.co.uk 08707 555779 (UK only) +44-1344 303034 ftp.zyxel.co.uk ZyXEL G-120 User’s Guide REGULAR MAIL ZyXEL Communications A/S Nils Hansens vei 13 0667 Oslo Norway ZyXEL Communications ul. Okrzei 1A 03-715 Warszawa Poland ZyXEL Russia Ostrovityanova 37a Str.
  • Page 10 ZyXEL G-120 User’s Guide Customer Support...

  • Page 11: Table Of Contents

    Copyright ... 3 Certifications ... 4 Safety Warnings ... 6 ZyXEL Limited Warranty... 7 Customer Support... 8 Table of Contents ... 11 List of Figures ... 15 List of Tables ... 17 Preface ... 19 Chapter 1 Getting Started ... 21 1.1 About Your G-120 ...21 1.2 Application Overview ...21 1.2.1 Station Mode ...21...
  • Page 12 ZyXEL G-120 User’s Guide Chapter 3 Wireless LAN Network ... 35 3.1 Wireless LAN Overview ...35 3.2 Wireless LAN Security ...36 3.2.1 Hide SSID ...36 3.2.2 MAC Address Filter ...36 3.2.3 User Authentication and Encryption ...37 3.2.3.1 WEP ...37 3.2.3.2 IEEE 802.1x ...38 3.2.3.3 WPA and WPA2 ...38 3.3 Introduction to OTIST 3.3.1 Enabling OTIST ...39...
  • Page 13 Chapter 6 Maintenance ... 67 6.1 The About Screen ...67 6.2 Uninstalling the ZyXEL Utility ...67 6.3 Upgrading the ZyXEL Utility ...68 Chapter 7 Troubleshooting ... 71 7.1 Problems Starting the ZyXEL Utility ...71 7.2 Problems with the Link Quality ...71 7.3 Problems Communicating With Other Computers ...72 Appendix A Product Specifications ...
  • Page 14 ZyXEL G-120 User’s Guide Table of Contents...

  • Page 15: List Of Figures

    ZyXEL G-120 User’s Guide List of Figures Figure 1 Application: Infrastructure ... 22 Figure 2 Application: Ad-Hoc ... 22 Figure 3 Application: Access Point Mode ... 23 Figure 4 ZyXEL Utility: Change Modes ... 23 Figure 5 ZyXEL Utility: System Tray Icon ... 24 Figure 6 Enable WZC ...
  • Page 16 ZyXEL G-120 User’s Guide Figure 39 Access Point Mode: Link Info ... 62 Figure 40 Access Point Mode: Configuration ... 63 Figure 41 Access Point Mode: MAC Filter ... 65 Figure 42 About ... 67 Figure 43 Uninstall: Confirm ... 68 Figure 44 Uninstall: Finish ...

  • Page 17: List Of Tables

    ZyXEL G-120 User’s Guide List of Tables Table 1 ZyXEL Utility: System Tray Icon ... 24 Table 2 ZyXEL Utility Menu Summary: Station Mode ... 43 Table 3 Station Mode: Link Info ... 44 Table 4 Station Mode: Link Info: Trend Chart ... 45 Table 5 Station Mode: Site Survey ...
  • Page 18 ZyXEL G-120 User’s Guide List of Tables...

  • Page 19: Preface

    Help us help you. E-mail all User Guide-related comments, questions or suggestions for improvement to techwriters@zyxel.com.tw or send regular mail to The Technical Writing Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 300, Taiwan. Thank you.

  • Page 20: Graphics Icons Key

    ZyXEL G-120 User’s Guide Graphics Icons Key Wireless Access Point Server Internet Cloud Computer Notebook Computer Modem or Router Wireless Signal Preface...

  • Page 21: Chapter 1 Getting Started

    This chapter introduces the G-120 and prepares you to use the ZyXEL utility. 1.1 About Your G-120 The G-120 is an IEEE 802.11b/g compliant wireless LAN adapter. You can also use the ZyXEL utility to turn your G-120 into an access point (AP). The ZyXEL utility is a tool that helps you configure your G-120.

  • Page 22: Ad-Hoc

    ZyXEL G-120 User’s Guide Figure 1 Application: Infrastructure 1.2.1.2 Ad-Hoc To set up a small independent wireless workgroup without an AP, use Ad-Hoc. Ad-Hoc does not require an AP or a wired network. Two or more wireless clients (wireless stations) communicate directly with one another. Figure 2 Application: Ad-Hoc 1.2.2 Access Point Mode In access point mode, your G-120 functions as an access point (AP).

  • Page 23: Changing G-120 Mode

    Figure 3 Application: Access Point Mode In the example, the G-120 is installed on computer A and set to operate in access point mode. Computer A provides an Internet connection to the wireless LAN, so wireless stations B and C can access the Internet.

  • Page 24: Hardware And Utility Installation

    ZyXEL G-120 User’s Guide 1.2.4 G-120 Hardware and Utility Installation Follow the instructions in the Quick Start Guide to install the ZyXEL utility and make hardware connections. 1.3 ZyXEL Utility Icon After you install and start the ZyXEL utility, an icon for the ZyXEL utility appears in the system tray.

  • Page 25: Accessing The Zyxel Utility

    Figure 6 Enable WZC Refer to the appendices for information on how to use WZC to manage the G-120. To re-activate the ZyXEL utility, double-click the Programs, ZyXEL G-120 Utility, ZyXEL G-120 Utility GUI. 1.4.2 Accessing the ZyXEL Utility Double-click on the ZyXEL wireless LAN utility icon in the system tray to open the ZyXEL utility.
  • Page 26 ZyXEL G-120 User’s Guide Chapter 1 Getting Started...

  • Page 27: Chapter 2 Tutorial

    The following sections show you how to join a wireless network using the ZyXEL utility, as in the following diagrams. The wireless client is labeled C and the access point is labeled AP. Figure 7 Infrastructure Network There are three ways to connect the wireless client to a network. •...

  • Page 28: Figure 8 Zyxel Utility: Site Survey

    ZyXEL G-120 User’s Guide Figure 8 ZyXEL Utility: Site Survey 2 The wireless client automatically searches for available wireless networks. Click Scan if you want to search again. If no entry displays in the Available Network List, that means there is no wireless network available within range. Make sure the AP or peer computer is turned on, or move the wireless client closer to the AP or peer computer.

  • Page 29: Creating And Using A Profile

    Figure 10 ZyXEL Utility: Confirm New Settings 6 The ZyXEL utility returns to the Link Info screen while it connects to the wireless network using your settings. When the wireless link is established, the ZyXEL utility icon in the system tray turns green and the Link Info screen displays details of the active connection.

  • Page 30: Figure 12 Zyxel Utility: Profile

    ZyXEL G-120 User’s Guide This example illustrates how to set up a profile and connect the wireless client to an access point configured for WPA-PSK security. In this example, the SSID is “SSID_Example3” and the pre-shared key is “ThisismyWPA-PSKpre-sharedkey” in the AP. You have chosen the profile name “PN_Example3”.

  • Page 31: Figure 14 Zyxel Utility: Profile Security

    Figure 14 ZyXEL Utility: Profile Security 5 This screen varies depending on the encryption method you selected in the previous screen. In this example, enter the pre-shared key and leave the encryption type at the default setting. Figure 15 ZyXEL Utility: Profile Encryption 6 Verify the profile settings in the ready-only screen.

  • Page 32: Configuring The G-120 As An Ap

    ZyXEL G-120 User’s Guide Only one profile can be activated and used at any given time. Figure 17 ZyXEL Utility: Profile Activation 8 When you activate the new profile, the ZyXEL utility goes to the Link Info screen while it connects to the AP using your settings. When the wireless link is established, the ZyXEL utility icon in the system tray turns green and the Link Info screen displays details of the active connection.

  • Page 33: Figure 18 Zyxel Utility: Ap: Link Info

    ZyXEL G-120 User’s Guide Figure 18 ZyXEL Utility: AP: Link Info 2 If you want to change the SSID and enable wireless security for your G-120, click the Configuration tab and refer to Section 5.3 on page 63 for detailed field descriptions. Note: You can only use WEP when the G-120 is in AP mode.
  • Page 34 ZyXEL G-120 User’s Guide Chapter 2 Tutorial...

  • Page 35: Wireless Lan Network

    This chapter provides background information on wireless LAN network. 3.1 Wireless LAN Overview The following figure provides an example of a wireless network with an AP. See page 22 for an Ad Hoc network example. Figure 20 Example of a Wireless Network The wireless network is the part in the blue circle.

  • Page 36: Wireless Lan Security

    ZyXEL G-120 User’s Guide • Every device in the same wireless network must use security compatible with the AP or peer computer. Security stops unauthorized devices from using the wireless network. It can also protect the information that is sent in the wireless network. 3.2 Wireless LAN Security Wireless LAN security is vital to your network to protect wireless communications.

  • Page 37: User Authentication And Encryption

    3.2.3 User Authentication and Encryption You can make every user log in to the wireless network before they can use it. This is called user authentication. However, every wireless client in the wireless network has to support IEEE 802.1x to do this. Wireless networks can use encryption to protect the information that is sent in the wireless network.

  • Page 38: Ieee 802.1X

    ZyXEL G-120 User’s Guide 3.2.3.2 IEEE 802.1x The IEEE 802.1x standard outlines enhanced security methods for both the authentication of wireless stations and encryption key management. Authentication can be done using an external RADIUS server. 3.2.3.2.1 EAP Authentication EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE 802.1x transport mechanism in order to support multiple types of user authentication.

  • Page 39: Introduction To Otist

    3.3 Introduction to OTIST In a wireless network, the wireless clients must have the same SSID and security settings as the access point (AP) or wireless router (we will refer to both as “AP” here) in order to associate with it. Traditionally this meant that you had to configure the settings on the AP and then manually configure the exact same settings on each wireless client.

  • Page 40: Wireless Client

    ZyXEL G-120 User’s Guide 3.3.1.2 Wireless Client Start the ZyXEL utility, select Station Mode, and click the Adapter tab. Select the OTIST check box, enter the same Setup Key as your AP’s and click Save. 3.3.2 Starting OTIST Note: You must click Start in the AP OTIST web configurator screen and in the wireless client(s) Adapter screen all within three minutes (at the time of writing).

  • Page 41: Notes On Otist

    • In the wireless client, you see this screen if it can't find an OTIST-enabled AP (with the same Setup key). Click OK to go back to the ZyXEL utility main screen. • If there is more than one OTIST-enabled AP within range, you see a screen asking you to select one AP to get settings from.
  • Page 42 ZyXEL G-120 User’s Guide Chapter 3 Wireless LAN Network...

  • Page 43: Wireless Station Mode Configuration

    This chapter shows you how to use the ZyXEL utility to configure your G-120 in wireless station mode. See Chapter 5 on page 61 4.1 Wireless Station Mode Overview To set your G-120 to wireless station mode, select Station Mode in any utility screen (refer to Section 1.2.3 on page 4.1.1 ZyXEL Utility Screen Summary This section describes the ZyXEL utility screens when the G-120 is in station mode.

  • Page 44: Figure 22 Station Mode: Link Info

    ZyXEL G-120 User’s Guide Figure 22 Station Mode: Link Info The following table describes the labels in this screen. Table 3 Station Mode: Link Info LABEL DESCRIPTION Wireless Network Security Profile Name This is the name of the profile you are currently using. Network Name The SSID identifies the wireless network to which a wireless station is associated.

  • Page 45: Trend Chart

    Table 3 Station Mode: Link Info (continued) LABEL DESCRIPTION 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 signal strength of the G-120. Trend Chart Click this button to display the real-time statistics of the data rate in kilobits per second (Kbps).

  • Page 46: The Site Survey Screen

    ZyXEL G-120 User’s Guide 4.3 The Site Survey Screen Use the Site Survey screen to scan for and connect to a wireless network automatically. Figure 24 Station Mode: Site Survey The following table describes the labels in this screen. Table 5 Station Mode: Site Survey LABEL DESCRIPTION Available Network...

  • Page 47: Security Settings

    Table 5 Station Mode: Site Survey (continued) LABEL DESCRIPTION Network Type This field displays the network type (Infrastructure or Ad-Hoc) of the wireless device. Channel This field displays the channel number used by each wireless device. Encryption This field shows whether data encryption is activated (WEP, WPA-PSK, WPA, WPA2, WPA2-PSK) or inactive (Disabled).
  • Page 48 ZyXEL G-120 User’s Guide Table 6 Station Mode: Security Setting: WEP (continued) LABEL DESCRIPTION Pass Phrase Enter a passphrase of up to 63 case-sensitive printable characters. As you enter the passphrase, the G-120 automatically generates four different WEP keys and displays it in the key field below.

  • Page 49: Wpa-Psk/Wpa2-Psk

    4.3.1.2 WPA-PSK/WPA2-PSK Figure 26 Station Mode: Security Setting: WPA-PSK/WPA2-PSK The following table describes the labels in this screen. Table 7 Station Mode: Security Setting: WPA-PSK/WPA2-PSK LABEL DESCRIPTION Encryption Type The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses a simple common password, instead of user-specific credentials.

  • Page 50: Table 8 Station Mode: Security Setting: Wpa/Wpa2

    ZyXEL G-120 User’s Guide The following table describes the labels in this screen. Table 8 Station Mode: Security Setting: WPA/WPA2 LABEL DESCRIPTION Encryption Type The encryption mechanisms used for WPA/WPA2 and WPA-PSK/WPA2-PSK are the same. The only difference between the two is that WPA-PSK/WPA2-PSK uses a simple common password, instead of user-specific credentials.

  • Page 51: Confirm New Settings

    Figure 28 Station Mode: Security Setting: 802.1x The following table describes the labels in this screen. Table 9 Station Mode: Security Setting: 802.1x LABEL DESCRIPTION Authentication The type of authentication you use depends on the RADIUS server or AP. Type Select an authentication method from the drop down list.

  • Page 52: The Profile Screen

    ZyXEL G-120 User’s Guide Figure 29 Station Mode: Confirm New Settings The following table describes the labels in this screen. Table 10 Station Mode: Confirm New Settings LABEL DESCRIPTION Network (SSID) This field displays the SSID previously entered. Network Type This field displays the network type (Infrastructure or Ad-Hoc) of the wireless device.

  • Page 53: Figure 30 Station Mode: Profile

    Figure 30 Station Mode: Profile The following table describes the labels in this screen. Table 11 Station Mode: Profile 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.

  • Page 54: Adding A New Profile

    ZyXEL G-120 User’s Guide Table 11 Station Mode: Profile (continued) LABEL DESCRIPTION Frequency This field displays the wireless standard used by the profile. Channel This field displays the channel number used by the profile. Security This field shows whether data encryption is activated (WEP, WPA-PSK, WPA, WPA2, WPA2-PSK, 802.1x) or inactive ( Transfer Rate This field displays the transmission speed of the selected profile in megabits per...
  • Page 55 Table 12 Station Mode: Profile: Add a New Profile (continued) LABEL DESCRIPTION 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.

  • Page 56: Figure 32 Station Mode: Profile: Select A Channel

    ZyXEL G-120 User’s Guide Figure 32 Station Mode: Profile: Select a Channel The following table describes the labels in this screen. Table 13 Station Mode: Profile: Select a Channel LABEL DESCRIPTION Wireless Settings 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.

  • Page 57: Figure 33 Station Mode: Profile: Security Settings

    Figure 33 Station Mode: Profile: Security Settings 4 The screen varies depending on the encryption method you select in the previous screen. The settings must be exactly the same on the APs or other peer wireless computers as they are on the G-120. Refer to wireless security configuration.

  • Page 58: The Adapter Screen

    ZyXEL G-120 User’s Guide Figure 35 Station Mode: Profile: Confirm New Settings 6 To use this network profile, click the Activate Now button. Otherwise, click the Activate Later button. You can activate only one profile at a time. Note: Once you activate a profile, the ZyXEL utility will use that profile the next time it is started.

  • Page 59: Figure 37 Station Mode: Adapter

    Figure 37 Station Mode: Adapter The following table describes the labels in this screen. Table 14 Station Mode: Adapter LABEL DESCRIPTION Adapter Setting Transmission Rate In most networking scenarios, the factory default Fully Auto setting is the most efficient and allows your G-120 to operate at the highest possible transmission (data) rate.
  • Page 60 ZyXEL G-120 User’s Guide Table 14 Station Mode: Adapter (continued) LABEL DESCRIPTION OTIST (One- Select this check box to enable OTIST. Touch Intelligent Security Technology) Setup Key Enter the same setup key (up to eight printable characters) as the ZyXEL AP or wireless router to which you want to associate.

  • Page 61: Access Point Mode Configuration

    This chapter shows you how to configure your G-120 in access point mode. 5.1 Access Point Mode Introduction To use your G-120 as an Access Point (AP), select AP Mode in any utility screen (refer to Section 1.2.3 on page In access point mode, your G-120 allows you to set up your wireless networks without using a dedicated AP.

  • Page 62: The Link Info Screen

    ZyXEL G-120 User’s Guide 3 Set the wireless station’s IP address to be dynamic if you want the wireless stations to access the wired network or the Internet through the G-120. Refer to page 97 for how to configure your computer’s IP address. 5.2 The Link Info Screen Select the AP Mode check box and wait for about five seconds to display the screen as shown.

  • Page 63: The Configuration Screen

    Table 16 Access Point Mode: Link Info (continued) LABEL DESCRIPTION MAC Address This field displays the MAC addresses of a wireless client that is currently connected to the G-120. Refresh Click Refresh to update this screen. 5.3 The Configuration Screen Click Configuration in the ZyXEL utility screen to display the screen as shown.
  • Page 64 ZyXEL G-120 User’s Guide Table 17 Access Point Mode: Configuration (continued) LABEL DESCRIPTION Output Power Set this field if you need to conserve power consumption (especially for notebook computers). This control changes the strength of the G-120’s antenna gain or transmission power.

  • Page 65: The Mac Filter Screen

    5.4 The MAC Filter Screen The MAC Filter screen allows you to configure the G-120 to give exclusive access to (Accept) devices or exclude devices from (Reject) connecting to the G-120. The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02.
  • Page 66 ZyXEL G-120 User’s Guide Chapter 5 Access Point Mode Configuration...

  • Page 67: Chapter 6 Maintenance

    This chapter describes how to uninstall or upgrade the ZyXEL utility. 6.1 The About Screen The About screen displays driver and utility version numbers of the G-120. To display the screen as shown below, click the About ( Figure 42 About The following table describes the read-only fields in this screen.

  • Page 68: Upgrading The Zyxel Utility

    ZyXEL G-120 User’s Guide Figure 43 Uninstall: Confirm 3 Click Finish to complete uninstalling the software and restart the computer when prompted. Figure 44 Uninstall: Finish 6.3 Upgrading the ZyXEL Utility Note: Before you uninstall the ZyXEL utility, take note of your current wireless configurations.
  • Page 69 ZyXEL G-120 User’s Guide 6 Insert the G-120 and check the version numbers in the About screen to make sure the new utility is installed properly. Chapter 6 Maintenance...
  • Page 70 ZyXEL G-120 User’s Guide Chapter 6 Maintenance...

  • Page 71: Chapter 7 Troubleshooting

    This chapter covers potential problems and the possible remedies. After each problem description, some instructions are provided to help you to diagnose and to solve the problem. 7.1 Problems Starting the ZyXEL Utility Table 20 Troubleshooting Starting ZyXEL Utility PROBLEM CORRECTIVE ACTION Cannot start the Make sure the G-120 is properly inserted and the LED(s) is on.

  • Page 72: Problems Communicating With Other Computers

    ZyXEL G-120 User’s Guide 7.3 Problems Communicating With Other Computers Table 22 Troubleshooting Communication Problems PROBLEM CORRECTIVE ACTION In wireless station In Infrastructure Mode mode, the • computer with the G-120 installed • cannot • communicate with the other computer(s). •...

  • Page 73: Product Specifications

    Table 23 Product Specifications PHYSICAL AND ENVIRONMENTAL Product Name Interface Standards Network Architectures Operating Frequencies Operating Channels Data Rate Modulation Operating Temperature Storage Temperature Operating Humidity Storage Humidity Power Voltage Weight Dimension RADIO SPECIFICATIONS Media Access Protocol Frequency Channels Data Rate Appendix A Product Specifications P P E N D I X Product Specifications...
  • Page 74 ZyXEL G-120 User’s Guide Table 23 Product Specifications (continued) Modulation Output Power RX Sensitivity SOFTWARE SPECIFICATIONS Device Drivers Security IEEE 802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (OFDM) IEEE 802.11b: 11, 5.5 Mbps (CCK), 2 Mbps (DQPSK), 1 Mbps (DBPSK) 18 dBm (typical) at 11Mbps CCK, QPSK, BPSK 15 dBm (typical) at 54Mbps OFDM...

  • Page 75: Access Point Mode Setup Example

    Access Point Mode Setup Example This example uses the network sharing feature in Windows 2000 to bridge the wired and wireless network when you set the G-120 in access point (AP) mode. Refer to Chapter 5 on page 61 Steps may vary depending on your Windows version. You may need to install additional software in Windows 98 Second Edition and Windows ME.

  • Page 76: Figure 46 Windows 2000: Network And Dial-Up Connections

    ZyXEL G-120 User’s Guide Figure 46 Windows 2000: Network and Dial-up Connections 4 A Properties screen displays. Click the Sharing tab and select Enable Internet Connection Sharing for this connection. Click OK. Figure 47 Windows 2000: Network Properties If there is more than one network adapter on the computer, select Enable Internet Connection Sharing for this connection and select the network adapter to which you want to share network access.

  • Page 77: Figure 48 Windows 2000: Network Properties: Select Network Adapter

    Figure 48 WIndows 2000: Network Properties: Select Network Adapter 5 A notice screen displays. Click Yes. Figure 49 Windows 2000: Local Network Configuring the Wireless Station Computer Refer to Appendix E on page 97 computer(s) IP address. Appendix B Access Point Mode Setup Example for more information on how to set up the wireless station ZyXEL G-120 User’s Guide...
  • Page 78 ZyXEL G-120 User’s Guide Appendix B Access Point Mode Setup Example...

  • Page 79: Management With Wireless Zero Configuration

    Management with Wireless Zero This appendix shows you how to manage your G-120 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.

  • Page 80: Figure 51 Windows Xp Sp2: System Tray Icon

    ZyXEL G-120 User’s Guide 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 51 Windows XP SP2: System Tray Icon The type of the wireless network icon in Windows XP SP2 indicates the status of the G-120. Refer to the following table for details.

  • Page 81: Figure 53 Windows Xp Sp1: Wireless Network Connection Status

    Windows XP SP1: In the Wireless Network Connection Status screen, click Properties and the Wireless Networks tab to open the Wireless Network Connection Properties screen. Figure 53 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.

  • Page 82: Figure 55 Windows Xp Sp1: Wireless Network Connection Properties

    ZyXEL G-120 User’s Guide The following table describes the icons in the wireless network list. Table 25 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 G-120 tries to associate to the preferred network first in the order that you specify.

  • Page 83: Figure 56 Windows Xp Sp2: Wireless Network Connection: Wep Or Wpa-Psk

    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 56 Windows XP SP2: Wireless Network Connection: WEP or WPA-PSK Figure 57 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.

  • Page 84: Figure 58 Windows Xp: Wireless (Network) Properties: Association

    ZyXEL G-120 User’s Guide Figure 58 Windows XP: Wireless (network) properties: Association The following table describes the labels in this screen. Table 27 Windows XP: Wireless (network) properties: Association LABEL DESCRIPTION Network name This field displays the SSID (Service Set IDentifier) of each wireless network. (SSID) Network This field automatically shows the authentication method (Share, Open, WPA or...

  • Page 85: Figure 59 Windows Xp: Wireless (Network) Properties: Authentication

    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 59 Windows XP: Wireless (network) properties: Authentication The following table describes the labels in this screen.

  • Page 86: Figure 60 Windows Xp: Protected Eap Properties

    ZyXEL G-120 User’s Guide 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 60 Windows XP: Protected EAP Properties The following table describes the labels in this screen. Table 29 Windows XP: Protected EAP Properties LABEL DESCRIPTION...

  • Page 87: Figure 61 Windows Xp: Smart Card Or Other Certificate Properties

    Table 29 Windows XP: Protected EAP Properties LABEL DESCRIPTION Enable Fast Select the check box to automatically reconnect to the network (without re- Reconnect authentication) if the wireless connection goes down. Click OK to save your changes. Cancel Click Cancel to leave this screen without saving any changes you may have made. Smart Card or other Certificate Properties Figure 61 Windows XP: Smart Card or other Certificate Properties The following table describes the labels in this screen.

  • Page 88: Figure 62 Windows Xp Sp2: Wireless Networks: Preferred Networks

    ZyXEL G-120 User’s Guide Table 30 Windows XP: Smart Card or other Certificate Properties LABEL DESCRIPTION Use a different Select the check box to use a different user name when the user name in the smart user name for the card or certificate is not the same as the user name in the domain that you are connection: logged on to.

  • Page 89: Figure 63 Windows Xp Sp1: Wireless Networks: Preferred Networks

    ZyXEL G-120 User’s Guide Figure 63 Windows XP SP1: Wireless Networks: Preferred Networks 2 Whenever the G-120 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.
  • Page 90 ZyXEL G-120 User’s Guide Appendix C Management with Wireless Zero Configuration...

  • Page 91: Appendix D Wireless Security

    Types of EAP Authentication This section discusses some popular authentication types: EAP-MD5, EAP-TLS, EAP-TTLS, PEAP and LEAP. Your wireless LAN device may not support all authentication types. EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE 802.1x transport mechanism in order to support multiple types of user authentication.

  • Page 92: Dynamic Wep Key Exchange

    ZyXEL G-120 User’s Guide 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.

  • Page 93: Table 31 Comparison Of Eap Authentication Types

    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 31 Comparison of EAP Authentication Types Mutual Authentication Certificate –...

  • Page 94: User Authentication

    ZyXEL G-120 User’s Guide 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.

  • Page 95: Figure 64 Wpa-Psk Authentication

    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.

  • Page 96: Figure 65 Wpa(2) With Radius Application Example

    ZyXEL G-120 User’s Guide Figure 65 WPA(2) with RADIUS Application Example Security Parameters Summary Refer to this table to see what other security parameters you should configure for each Authentication Method/ key management protocol type. MAC address filters are not dependent on how you configure these security features.

  • Page 97: Setting Up Your Computer's Ip Address

    Setting up Your Computer’s IP Address All computers must have a 10M or 100M Ethernet adapter card and TCP/IP installed. Windows 98/Me/2000 and XP include the software components you need to install and use TCP/IP on your computer. TCP/IP should already be installed on computers using Windows 2000 and XP. After the appropriate TCP/IP components are installed, configure the TCP/IP settings in order to "communicate"...

  • Page 98: Figure 66 Windows 98/Me: Network: Configuration

    ZyXEL G-120 User’s Guide Figure 66 WIndows 98/Me: Network: Configuration Installing Components The Network window Configuration tab displays a list of installed components. You need a network adapter, the TCP/IP protocol and Client for Microsoft Networks. If you need the adapter: 1 In the Network window, click Add.

  • Page 99: Figure 67 Windows 98/Me: Tcp/Ip Properties: Ip Address

    4 Select Client for Microsoft Networks from the list of network clients and then click 5 Restart your computer so the changes you made take effect. Configuring 1 In the Network window Configuration tab, select your network adapter's TCP/IP entry and click Properties 2 Click the IP Address tab.

  • Page 100: Figure 68 Windows 98/Me: Tcp/Ip Properties: Dns Configuration

    ZyXEL G-120 User’s Guide Figure 68 Windows 98/Me: TCP/IP Properties: DNS Configuration 4 Click the Gateway tab. • • 5 Click OK to save and close the TCP/IP Properties window. 6 Click OK to close the Network window. Insert the Windows CD if prompted. 7 Restart your computer when prompted.

  • Page 101: Figure 69 Windows Xp: Start Menu

    Figure 69 Windows XP: Start Menu 2 For Windows XP, click Network Connections. For Windows 2000, click Network and Dial-up Connections. Figure 70 Windows XP: Control Panel 3 Right-click Local Area Connection and then click Properties. Appendix E Setting up Your Computer’s IP Address ZyXEL G-120 User’s Guide...

  • Page 102: Figure 71 Windows Xp: Control Panel: Network Connections: Properties

    ZyXEL G-120 User’s Guide Figure 71 Windows XP: Control Panel: Network Connections: Properties 4 Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and click Properties. Figure 72 Windows XP: Local Area Connection Properties 5 The Internet Protocol TCP/IP Properties window opens (the General tab in Windows XP).

  • Page 103: Figure 73 Windows Xp: Advanced Tcp/Ip Settings

    • Figure 73 Windows XP: Advanced TCP/IP Settings 6 If you do not know your gateway's IP address, remove any previously installed gateways in the IP Settings tab and click OK. Do one or more of the following if you want to configure additional IP addresses: •...

  • Page 104: Figure 74 Windows Xp: Internet Protocol (Tcp/Ip) Properties

    ZyXEL G-120 User’s Guide • • Figure 74 Windows XP: Internet Protocol (TCP/IP) Properties 8 Click OK to close the Internet Protocol (TCP/IP) Properties window. 9 Click OK to close the Local Area Connection Properties window. 10Restart your computer (if prompted). Verifying Settings 1 Click Start, All Programs, Accessories and then Command Prompt.

  • Page 105: Index

    About About your G-120 access point Access point mode 22, 32 access point mode additional setup requirements configuration 22, 61 access point. See also AP. activating a profile Adapter Ad-Hoc 22, 55 Advanced Encryption Standard 38, 93 advanced settings antenna gain antenna output power antenna power output AP.
  • Page 106 ZyXEL G-120 User’s Guide IEEE 802.1x Infrastructure initialization vector (IV) Interference Statement link information 43, 62 MAC Filter MAC Filter action Message Integrity Check (MIC) 38, 93 network type One-Touch Intelligent Security Technology open system authentication OTIST Introduction output power PA2-PSK Pairwise Master Key (PMK) passphrase...
  • Page 107 network communication starting ZyXEL Utility uninstalling ZyXEL Utility upgrading ZyXEL Utility important step User Authentication user authentication voltage 37, 47, 64 manual setup 37, 48, 64 passphrase 37, 48, 64 WEP (Wired Equivalent Privacy) WEP Encryption Wi-Fi Protected Access 38, 93 Windows XP wireless client wireless LAN...

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