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ZyXEL Communications G-162 2.2Wireless LAN Security, Figure 2-4Roaming Example

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ZyXEL G-162 User’s Guide

The following figure depicts a roaming example. When wireless station B moves to position X, the ZyXEL G-162 in wireless station B automatically switches the channel to the one used by access point 2 in order to stay connected to the network.

Figure 2-4 Roaming Example

2.2Wireless LAN Security

Wireless LAN security is vital to your network to protect wireless communication between wireless stations and the wired network.

The figure below shows the possible wireless security levels on your ZyXEL G-162. EAP (Extensible Authentication Protocol) is used for authentication and utilizes dynamic WEP key exchange. It requires interaction with a RADIUS (Remote Authentication Dial-In User Service) server either on the WAN or your LAN to provide authentication service for wireless stations.

2-4	Wireless LAN Network

Contents

Page Copyright ZyXEL Limited Warranty Information for Canadian Users Federal Communications Commission (FCC) Interference Statement1 Customer Support Page Page Table of Contents Appendix B Types of EAP Authentication List of Figures List of Tables Preface Graphics Icons Key Getting Started 1.1About Your ZyXEL G-162 1.2ZyXEL G-162Hardware and Utility Installation 1.3Ways to Configure the ZyXEL G-162 1.4Disable Windows XP Wireless LAN Configuration Tool Figure 1-2Windows XP: Wireless Network Connection Status Properties Wireless Networks Page 1.5Accessing the ZyXEL Utility Table 1-1ZyXEL Utility: System Tray Icon Click the icon (located in the top right corner) to display the on-linehelp window Wireless LAN Network 2.1Overview 2.1.1SSID 2.1.2 Channel 2.1.3 Transmission Rate (Transfer Rate) 2.1.4 Wireless Network Application 2.1.5 Roaming 2.2Wireless LAN Security 2.2.1 Data Encryption with WEP 2.2.2 IEEE 2.2.3 WPA 2.2.4 WPA-PSKApplication Example 2.2.5 WPA with RADIUS Application Example 2.3Fragmentation Threshold 2.4RTS/CTS Threshold Figure 2-8RTS Threshold 2.5Authentication Type Using the ZyXEL Utility 3.1The Link Info Screen Table 3-1Link Info 3.1.1 Trend Chart 3.2The Site Survey Screen Figure 3-3Site Survey Table 3-3Site Survey 3.2.1 Connecting to a Network 3.2.2 Security Settings 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 WPA-PSK Figure 3-5Site Survey: Security Settings: WPA-PSK Table 3-5Site Survey: Security Settings: WPA-PSK WPA Figure 3-6Site Survey: Security Settings: WPA Table 3-6Site Survey: Security Settings: WPA obtain the certificate(s) from a certificate authority (CA) Consult your network administrator for more information Figure 3-7Site Survey: Security Settings: Table 3-7Site Survey: Security Settings: You must first have a wired connection to a network and 3.3The Profile Screen Figure 3-8Profile Table 3-8Profile 3.3.1 Adding a New Profile Figure 3-9Profile: Add New Profile Table 3-9Profile: Add New Profile Page Figure 3-10Profile: Select a Channel Table 3-10Profile: Select a Channel WEP WPA-PSK WPA Figure 3-11Profile: Wireless Settings Figure 3-12Profile: Security Settings Save Back Exit Page 3.4The Adapter Screen Figure 3-15Adapter Table 3-11Adapter Page Page Maintenance 4.1The About Screen 4.2Uninstalling the ZyXEL Utility 4.3Upgrading the ZyXEL Utility Troubleshooting 5.1Problems Starting the ZyXEL Utility Program 5.2Problem with the Link Status 5.3Problems Communicating With Other Computers Appendix A Product Specifications Page Appendix B Types of EAP Authentication LEAP Comparison of EAP Authentication Types Appendix C Index