ZyXEL Communications B-420 Preface

ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge

Preface

Congratulations on your purchase of the ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge.

The ZyAIR B-420 is an IEEE 802.11b compliant 11Mbps wireless LAN Ethernet Adapter and Bridge, which supports Wireless Distribution System (WDS) for workgroup bridge applications.

This User’s Guide is designed to guide you through the configuration of your ZyAIR using the web configurator or the SMT.

Use the web configurator, System Management Terminal (SMT) or command interpreter interface to configure your ZyAIR. Not all features can be configured through all interfaces.

The web configurator parts of this guide contain background information on features configurable by the web configurator and the SMT. The SMT parts of this guide contain background information on features not configurable by the web configurator.

Related Documentation

Supporting Disk

Refer to the included CD for support documents. Quick Installation Guide

Our Quick Installation Guide is designed to help you get up and running right away. It contains information on the configuration of key features and hardware connections and installation.

ZyXEL Web Site

The ZyXEL download library at www.zyxel.com contains additional support documentation. Please also refer to www.zyxel.com for an online glossary of networking terms.

Syntax Conventions

•“Type” means for you to type one or more characters and press the carriage return. “Select” or “Choose” means for you to use one predefined choices.

•Enter, or carriage return, key; [ESC] means the escape key and [SPACE BAR] means the space bar. [UP] and [DOWN] are the up and down arrow keys.

•Mouse action sequences are denoted using a comma. For example, “click the Apple icon, Control Panels and then Modem” means first click the Apple icon, then point your mouse pointer to Control Panels and then click Modem.

•For brevity’s sake, we will use “e.g.,” as a shorthand for “for instance”, and “i.e.,” for “that is” or “in other words” throughout this manual.

Preface

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Contents

User's Guide Copyright Federal Communications Commission (FCC) Interference Statement ZyXEL Limited Warranty Customer Support Table of Contents Chapter 5 IP Screen LOGS Chapter 6 Logs Screens Chapter 7 Maintenance Chapter 8 Introducing the SMT Chapter 12 System Information Chapter 13 Firmware and Configuration File Maintenance APPENDICES A-1 B-1 List of Figures Page Page List of Tables Preface User Guide Feedback Part I: OVERVIEW Page Getting to Know Your ZyAIR 1.1Introducing the ZyAIR 1.2ZyAIR Features 10/100M Auto-negotiatingEthernet/Fast Ethernet Interface 10/100M Auto-crossoverEthernet/Fast Ethernet Interface Bridge Power over Ethernet (PoE) 802.11b Wireless LAN Standard Output Power Management WDS Functionality Brute-ForcePassword Guessing Protection SNMP Full Network Management 1.3Applications for the ZyAIR 1.3.1 Infrastructure 1.3.2 Ad Hoc 1.3.3 Bridge Page Introducing the Web Configurator 2.1Accessing the ZyAIR Web Configurator 2.2Navigating the ZyAIR Web Configurator 2.3Resetting the ZyAIR 2.3.1 Method of Restoring Factory-Defaults Part II: SYSTEM, WIRELESS AND IP Page System Screens 3.1System Overview 3.2Configuring General Setup 3.3Configuring Password 3.4Configuring Time Setting Figure 3-3Time Setting Table 3-3Time Setting Wireless LAN 4.1Wireless LAN Basis 4.1.1 Channel 4.1.2 ESS ID 4.1.3 WEP Encryption Page 4.1.5 Fragmentation Threshold 4.2Wireless Security Overview 4.3WEP Overview 4.3.1 Data Encryption 4.3.2 Authentication 4.4Configuring Wireless 4.4.1 Infrastructure Roaming Figure 4-6Wireless : Infrastructure Table 4-1Wireless : Infrastructure 4.4.2 Ad-Hoc Figure 4-7 Ad-hoc(IBSS) Wireless LAN Figure 4-8Wireless : Ad Hoc 4.4.3 Bridge Figure 4-10Bridge Loop: Two Bridges Connected to Hub Figure 4-11Bridge Loop: Bridge Connected to Wired LAN Figure 4-12Wireless : Bridge Table 4-3Wireless : Bridge Page Page IP Screen 5.1Factory Ethernet Defaults 5.2TCP/IP Parameters 5.2.1 IP Address and Subnet Mask 5.3Configuring IP Table 5-2IP You must know the IP address assigned to the ZyAIR (by the DHCP server) to access the ZyAIR again If you change the ZyAIR's IP address, you must use the new IP address if you want to access the web Part III: LOGS Logs Screens 6.1Configuring View Log 6.2Configuring Log Settings Figure 6-2Log Settings Table 6-2Log Settings Page Page Part IV: MAINTENANCE Page Maintenance 7.1Maintenance Overview 7.2System Status Screen 7.2.1 System Statistics 7.3Wireless Screen Figure 7-3Channel Usage Table 7-3Channel Usage 7.4F/W Upload Screen Table 7-4Firmware Upload WARNING Firmware Upload in Process Figure 7-5Firmware Upload In Process 7.5Configuration Screen 7.5.1 Backup Configuration 7.5.2 Restore Configuration Table 7-5Restore Configuration Do not turn off the device while configuration file upload is in progress Figure 7-10Configuration Upload Successful Figure 7-11Network Temporarily Disconnected 7.5.3 Back to Factory Defaults Figure 7-14Reset Warning Message Part V: SMT CONFIGURATION Page Introducing the SMT 8.1Connect to your ZyAIR Using Telnet 8.2Changing the System Password 8.3ZyAIR SMT Menu Overview Example Figure 8-3ZyAIR B-420SMT Menu Overview Example 8.4Navigating the SMT Interface 8.4.1 System Management Terminal Interface Summary Page General Setup 9.1General Setup 9.1.1 Procedure To Configure Menu Table 9-1Menu 1 General Setup LAN Setup 10.1 LAN Setup 10.2 TCP/IP Ethernet Setup 10.3 Wireless LAN Setup Figure 10-3Menu 3.5 Wireless LAN Setup Table 10-2Menu 3.5 Wireless LAN Setup Page 10.3.1 Configuring Bridge Link Table 10-3Menu 3.5.4 Bridge Link Configuration SNMP Configuration 11.1 About SNMP 11.2 Supported MIBs 11.3 SNMP Configuration 11.4 SNMP Traps Table 11-2SNMP Traps Table 11-3Ports and Interface Types System Information 12.1 System Status Figure 12-2Menu 24.1 System Maintenance : Status Table 12-1Menu 24.1 System Maintenance : Status 12.2 System Information 12.2.1 System Information 12.2.2 Console Port Speed 12.3 Log and Trace 12.3.1 Viewing Error Log Page Firmware and Configuration File Maintenance 13.1 Filename Conventions 13.2 Backup Configuration 13.2.1 Backup Configuration Using FTP 13.2.2 Using the FTP command from the DOS Prompt 13.2.3 Backup Configuration Using TFTP 13.2.4 Example: TFTP Command 13.3 Restore Configuration 13.4 Uploading Firmware and Configuration Files 13.4.1 Firmware Upload 13.4.2 Configuration File Upload 13.4.3 Using the FTP command from the DOS Prompt Example 13.4.4 TFTP File Upload 13.4.5 Example: TFTP Command System Maintenance and Information 14.1 Command Interpreter Mode 14.2 Time and Date Setting Part VI: APPENDICES Page Troubleshooting Problems Starting Up the ZyAIR Problems with the Password Problems Communicating with Other Computers Appendix B Brute-ForcePassword Guessing Protection Chart B-1 Brute-ForcePassword Guessing Protection Commands Page Setting up Your Computer’s IP Address Windows 95/98/Me Properties Page Windows 2000/NT/XP Page Page Page Macintosh OS 8/9 Page Macintosh OS Page Page Wireless LAN and IEEE Benefits of a Wireless LAN IEEE Ad-hocWireless LAN Configuration Infrastructure Wireless LAN Configuration Diagram D-2ESS Provides Campus-WideCoverage Page Antenna Selection and Positioning Recommendation Antenna Characteristics Frequency Radiation Pattern Antenna Gain Connector Type Power over Ethernet Specifications Page IP Subnetting IP Addressing IP Classes Subnet Masks Subnetting Example: Two Subnets Page Example: Four Subnets Example Eight Subnets Subnetting With Class A and Class B Networks Page Command Interpreter Command Syntax Command Usage Page Log Descriptions Page Log Commands Log Command Example Power Adaptor Specifications Page Index