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ZyXEL G-302 v3 User’s Guide

Chapter 2 Wireless LAN Network

29

C

H A P T E R

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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Содержание G-302 V3

Страница 1: ...ZyXEL G 302 v3 802 11g Wireless PCI Adapter User s Guide Version 4 00 Edition 1 10 2008...

Страница 2: ......

Страница 3: ...nal support documentation User Guide Feedback Help us help you E mail all User Guide related comments questions or suggestions for improvement to techwriters zyxel com tw or send regular mail to The T...

Страница 4: ...ZyXEL G 302 v3 User s Guide 4 Preface Graphics Icons Key Access Point Computer Notebook Computer Server Internet Cloud Wireless Signal...

Страница 5: ...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...

Страница 6: ...ZyXEL G 302 v3 User s Guide 6 Preface...

Страница 7: ...yXEL 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 co...

Страница 8: ...e 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 re...

Страница 9: ...This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada This device has been designed to operate with the antennas...

Страница 10: ...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 subjecte...

Страница 11: ...ternational telephone call Corporate Headquarters Worldwide Support E mail support zyxel com tw Sales E mail sales zyxel com tw Telephone 886 3 578 3942 Fax 886 3 578 2439 Web www zyxel com Regular Ma...

Страница 12: ...sales zyxel dk Telephone 45 39 55 07 00 Fax 45 39 55 07 07 Web www zyxel dk Regular Mail ZyXEL Communications A S Columbusvej 2860 Soeborg Denmark Finland Support E mail support zyxel fi Sales E mail...

Страница 13: ...ZyXEL Technology India Pvt Ltd II Floor F2 9 Okhla Phase 1 New Delhi 110020 India Japan Support E mail support zyxel co jp Sales E mail zyp zyxel co jp Telephone 81 3 6847 3700 Fax 81 3 6847 3705 Web...

Страница 14: ...Fax 47 22 80 61 81 Web www zyxel no Regular Mail ZyXEL Communications A S Nils Hansens vei 13 0667 Oslo Norway Poland E mail info pl zyxel com Telephone 48 22 333 8250 Fax 48 22 333 8251 Web www pl z...

Страница 15: ...om tw Sales E mail sales zyxel com tw Telephone 886 2 27399889 Fax 886 2 27353220 Web http www zyxel com tw Address Room B 21F No 333 Sec 2 Dunhua S Rd Da an District Taipei Thailand Support E mail su...

Страница 16: ...Regular Mail ZyXEL Ukraine 13 Pimonenko Str Kiev 04050 Ukraine United Kingdom Support E mail support zyxel co uk Sales E mail sales zyxel co uk Telephone 44 1344 303044 0845 122 0301 UK only Fax 44 1...

Страница 17: ...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 Ut...

Страница 18: ...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 Maintena...

Страница 19: ...ZyXEL G 302 v3 User s Guide Table of Contents 15 Index 75...

Страница 20: ...ZyXEL G 302 v3 User s Guide 16 Table of Contents...

Страница 21: ...8 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 F...

Страница 22: ...e 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 Smar...

Страница 23: ...le 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 Specif...

Страница 24: ...ZyXEL G 302 v3 User s Guide 20 List of Tables...

Страница 25: ...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...

Страница 26: ...frastructure 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...

Страница 27: ...ows 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 Odys...

Страница 28: ...l 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 Double click on the ZyXEL wirele...

Страница 29: ...e 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 wi...

Страница 30: ...en 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 t...

Страница 31: ...ZyXEL G 302 v3 User s Guide Chapter 1 Getting Started 27 Figure 9 ZyXEL Utility Link Info...

Страница 32: ...ZyXEL G 302 v3 User s Guide 28 Chapter 1 Getting Started...

Страница 33: ...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 ag...

Страница 34: ...o 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...

Страница 35: ...P 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 strong...

Страница 36: ...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 RAD...

Страница 37: ...pted 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 th...

Страница 38: ...ZyXEL G 302 v3 User s Guide 34 Chapter 2 Wireless LAN Network...

Страница 39: ...lowing 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...

Страница 40: ...a 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 metho...

Страница 41: ...Receive This field displays the current data receiving rate in kilobits per second Kbps Table 5 Site Survey LABEL DESCRIPTION Available Network List Click a column heading to sort the entries or deno...

Страница 42: ...eless 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 Channel This field displays the channe...

Страница 43: ...y Select a default WEP key to use for data encryption The key displays in the field below Key x where x is a number between 1 and 4 Select this option if you want to manually enter the WEP keys Enter...

Страница 44: ...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 in...

Страница 45: ...ce 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 Table 7 Security Settings WPA WPA2 LABEL DESCRIPTION Table 8 Security...

Страница 46: ...te 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 conne...

Страница 47: ...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...

Страница 48: ...etwork 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 WP...

Страница 49: ...wireless networks within the transmission range or denotes that the wireless device is in infrastructure mode and the wireless security is activated denotes that the wireless device is in infrastruct...

Страница 50: ...etting 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 the...

Страница 51: ...ave 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 netw...

Страница 52: ...ter LABEL DESCRIPTION Adapter Setting 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...

Страница 53: ...ing table describes the read only fields in this screen 4 2 Uninstalling the ZyXEL Utility Follow the steps below to remove or uninstall the ZyXEL utility from your computer 1 Click Start Programs ZyX...

Страница 54: ...e 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 curr...

Страница 55: ...he 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...

Страница 56: ...may ask for permission to perform this action Click Continue to proceed Table 17 Troubleshooting Communication Problem PROBLEM CORRECTIVE ACTION In wireless station mode the computer with the G 302 v...

Страница 57: ...ns 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...

Страница 58: ...ically 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 WLA...

Страница 59: ...Weight 45 5g Dimension W 18 mm L 122 mm H 120 mm 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 472GH...

Страница 60: ...302 v3 User s Guide 56 Appendix A Product Specifications ZyXEL Utility ZyXEL Wireless Configuration Tool Security 64 128 bit WEP WPA WPA PSK WPA2 WPA2 PSK IEEE 802 1x Table 18 Product Specifications c...

Страница 61: ...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...

Страница 62: ...wing table for details 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 N...

Страница 63: ...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 availabl...

Страница 64: ...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...

Страница 65: ...s network list or the connection icon in the Preferred networks or Available networks list The following table describes the connection icons Security Settings When you configure the ZyXEL wireless LA...

Страница 66: ...entication 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...

Страница 67: ...K Click OK to save your changes Cancel Click Cancel to leave this screen without saving any changes you may have made Table 22 Windows XP Wireless network properties Association continued LABEL DESCRI...

Страница 68: ...nformation 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 infor...

Страница 69: ...tion authority from the list below Note You must first have a wired connection to a network and obtain the certificate s from a certificate authority CA Consult your network administrator for more inf...

Страница 70: ...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...

Страница 71: ...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 ta...

Страница 72: ...ZyXEL G 302 v3 User s Guide 68 Appendix B Management with Wireless Zero Configuration...

Страница 73: ...asswords 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 authentic...

Страница 74: ...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...

Страница 75: ...poral 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 co...

Страница 76: ...ply 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...

Страница 77: ...m 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 a...

Страница 78: ...security features Table 27 Wireless Security Relational Matrix AUTHENTICATION METHOD KEY MANAGEMENT PROTOCOL ENCRYPTION METHOD ENTER MANUAL KEY IEEE 802 1X Open None No Disable Enable without Dynamic...

Страница 79: ...on 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...

Страница 80: ...ice 10 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 sy...

Страница 81: ...N 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 Z...

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