ZyXEL Communications ZyAIR B-420 User Manual
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ZyXEL Communications ZyAIR B-420 User Manual

Wireless lan ethernet adapter and bridge
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ZyAIR B-420
Wireless LAN Ethernet Adapter and Bridge
User's Guide
Version 3.50
June 2004

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Summary of Contents for ZyXEL Communications ZyAIR B-420

  • Page 1 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge User's Guide Version 3.50 June 2004...
  • Page 2 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.

  • Page 3: Federal Communications Commission

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Federal Communications Commission (FCC) Interference Statement This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: • This device may not cause harmful interference. •...

  • Page 4: Zyxel Limited Warranty

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 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 years from the date of purchase. During the warranty period, and...

  • Page 5: Customer Support

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 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.
  • Page 6 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge METHOD SUPPORT E-MAIL TELEPHONE WEB SITE REGULAR MAIL SALES E-MAIL FTP SITE LOCATION SWEDEN support@zyxel.se +46 31 744 7700 www.zyxel.se ZyXEL Communications A/S Sjöporten 4, 41764 Göteborg sales@zyxel.se +46 31 744 7701...

  • Page 7: Table Of Contents

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table of Contents Copyright .................................ii Federal Communications Commission (FCC) Interference Statement .............iii ZyXEL Limited Warranty..........................iv Customer Support............................v List of Figures..............................x List of Tables..............................xii Preface................................xiii OVERVIEW ..............................I Chapter 1 Getting to Know Your ZyAIR ....................1-1 Introducing the ZyAIR.......................1-1...
  • Page 8 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 4.4.2 Ad-Hoc..........................4-8 4.4.3 Bridge ..........................4-10 Chapter 5 IP Screen .............................5-1 Factory Ethernet Defaults ......................5-1 TCP/IP Parameters........................5-1 5.2.1 IP Address and Subnet Mask .....................5-1 Configuring IP ...........................5-2 LOGS ................................III Chapter 6 Logs Screens ..........................6-1 Configuring View Log.......................6-1...
  • Page 9 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 11.4 SNMP Traps..........................11-3 Chapter 12 System Information........................12-1 12.1 System Status ...........................12-1 12.2 System Information........................12-3 12.2.1 System Information ......................12-3 12.2.2 Console Port Speed ......................12-4 12.3 Log and Trace ..........................12-5 12.3.1 Viewing Error Log ......................12-5 Chapter 13 Firmware and Configuration File Maintenance..............13-1...

  • Page 10: List Of Figures

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge List of Figures Figure 1-1 PoE Installation Example ......................1-2 Figure 1-2 Infrastructure Network Example ....................1-4 Figure 1-3 Ad-hoc Application Example ......................1-5 Figure 1-4 Bridge Application Example ......................1-5 Figure 2-1 Web Browser Address Field ......................2-1 Figure 2-2 Change Password Screen ......................2-1...
  • Page 11 Figure 8-1 Login Screen ..........................8-1 Figure 8-2 Menu 23.1 System Security : Change Password ................8-2 Figure 8-3 ZyAIR B-420 SMT Menu Overview Example ................8-3 Figure 8-4 ZyAIR B-420 SMT Main Menu....................8-5 Figure 9-1 Menu 1 General Setup........................9-1 Figure 10-1 Menu 3 LAN Setup ........................
  • Page 12 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge List of Tables Table 3-1 System General Setup........................3-2 Table 3-2 Password............................3-3 Table 3-3 Time Setting............................3-4 Table 4-1 Wireless : Infrastructure........................4-7 Table 4-2 Wireless : Ad Hoc .........................4-10 Table 4-3 Wireless : Bridge...........................4-12 Table 5-1 Private IP Address Ranges ......................5-2...

  • Page 13: Preface

    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.
  • Page 14 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge • The ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge will be referred to simply as the ZyAIR in the user’s guide. 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 Technical Writing Team, ZyXEL Communications...

  • Page 15: Overview

    Overview OVERVIEW This part introduces the main features and applications of the ZyAIR and shows how to access the web configurator.

  • Page 17: Chapter 1 Getting To Know Your Zyair

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 1 Getting to Know Your ZyAIR This chapter introduces the main features and applications of the ZyAIR. Introducing the ZyAIR The ZyAIR is an IEEE802.11b compliant 11Mbps wireless LAN Ethernet Adapter and Bridge. The ZyAIR provides easy network access to mobile users.

  • Page 18: Figure 1-1 Poe Installation Example

    Figure 1-1 PoE Installation Example 802.11b Wireless LAN Standard ZyAIR products containing the letter “B” in the model name, such as ZyAIR B-420, ZyAIR B-3000, comply with the 802.11b wireless standard. The 802.11b data rate and corresponding modulation techniques are as follows. The modulation technique defines how bits are encoded onto radio waves.
  • Page 19 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The ZyAIR may be prone to RF (Radio Frequency) interference from other 2.4 GHz devices such as microwave ovens, wireless phones, Bluetooth enabled devices, and other wireless LANs. Output Power Management Power Management is the ability to set the level of output power. This feature is only available in bridge mode.

  • Page 20: Applications For The Zyair

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Embedded FTP and TFTP Servers The ZyAIR’s embedded FTP and TFTP servers enable fast firmware upgrades as well as configuration file backups and restoration. Wireless LAN Channel Usage The Wireless Channel Usage screen displays whether the radio channels are used by other wireless devices within the transmission range of the ZyAIR.

  • Page 21: Ad Hoc

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 1.3.2 Ad Hoc An ad-hoc network consists of two or more computers communicating with one another through the wireless network. No access points (APs) or existing wired networks are needed. An access point acts as a bridge between the wireless and wired networks.

  • Page 23: Chapter 2 Introducing The Web Configurator

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 2 Introducing the Web Configurator This chapter describes how to access the ZyAIR web configurator and provides an overview of its screens. The default IP address of the ZyAIR is 192.168.1.11.

  • Page 24: Navigating The Zyair Web Configurator

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Step 7. You should now see the MAIN MENU screen. The management session automatically times out when the time period set in the Administrator Inactivity Timer field expires (default five minutes). Simply log back into the ZyAIR if this happens to you.

  • Page 25: Resetting The Zyair

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Resetting the ZyAIR If you forget your password or cannot access the ZyAIR, you will need to reload the factory-default configuration file or use the RESET button on the top panel of the ZyAIR. Uploading this configuration file replaces the current configuration file with the factory-default configuration file.

  • Page 27: System, Wireless And Ip

    System, Wireless and IP Part II: SYSTEM, WIRELESS AND IP This part covers System, Wireless and IP web configurator screens.

  • Page 29: Chapter 3 System Screens

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 3 System Screens This chapter provides information on the System screens. System Overview This section provides information on general system setup. Configuring General Setup Click SYSTEM under SETUP to open the General screen.

  • Page 30: Configuring Password

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 3-1 System General Setup LABEL DESCRIPTION System Name Type a descriptive name to identify the ZyAIR in the Ethernet network. This name can be up to 30 alphanumeric characters long. Spaces are not allowed, but dashes "-"...

  • Page 31: Configuring Time Setting

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 3-2 Password The following table describes the labels in this screen. Table 3-2 Password LABEL DESCRIPTION Old Password Type in your existing system password (1234 is the default password). New Password Type your new system password (up to 31 characters).

  • Page 32: Figure 3-3 Time Setting

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 3-3 Time Setting The following table describes the labels in this screen. Table 3-3 Time Setting LABEL DESCRIPTION Current Time This field displays the time of your ZyAIR. (hh:mm:ss) New Time Enter the new time in this field.

  • Page 33: Chapter 4 Wireless Lan

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 4 Wireless LAN This chapter discusses how to configure Wireless LAN screens on the ZyAIR. Wireless LAN Basis This section provides basic background information on the wireless LAN screens. 4.1.1 Channel A channel is the radio frequency(ies) used by IEEE 802.11b wireless devices.

  • Page 34: Figure 4-1 Rts/Cts

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other. Figure 4-1 RTS/CTS When station A sends data to the ZyAIR, it might not know that station B is already using the channel. If these two stations send data at the same time, collisions may occur when both sets of data arrive at the AP at the same time, resulting in a loss of messages for both stations.

  • Page 35: Fragmentation Threshold

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 4.1.5 Fragmentation Threshold A Fragmentation Threshold is the maximum data fragment size (between 256 and 2432 bytes) that can be sent in the wireless network before the ZyAIR will fragment the packet into smaller data frames.

  • Page 36: Data Encryption

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 4.3.1 Data Encryption WEP provides a mechanism for encrypting data using encryption keys. The values for the keys must be set up exactly the same on the APs or other peer ad-hoc wireless computers as they are on the ZyAIR to encrypt and decrypt data.

  • Page 37: Configuring Wireless

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge must then use the AP’s default WEP key to encrypt the challenge text and return it to the AP, which attempts to decrypt the message using the AP’s default WEP key. If the decrypted message matches the challenge text, the wireless station is authenticated.

  • Page 38: Figure 4-5 Roaming Example

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Roaming In an infrastructure network, wireless stations are able to switch from one AP to another as they move between the coverage areas. During this period, the wireless stations maintain uninterrupted connections to the network.

  • Page 39: Figure 4-6 Wireless : Infrastructure

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 4-6 Wireless : Infrastructure The following table describes the labels in this screen. Table 4-1 Wireless : Infrastructure LABEL DESCRIPTION Operating Mode Select Infrastructure from the drop-down list. ESSID In this field enter the ESSID of the AP to which you want to associate. To associate to an ad-hoc network, you must enter the same ESSID as the peer ad-hoc computer.

  • Page 40: Ad-Hoc

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 4-1 Wireless : Infrastructure LABEL DESCRIPTION Fragmentation Enter a value between 256 and 2432. Threshold It is the maximum data fragment size that can be sent. Select Disable to allow wireless stations to communicate with the AP without any data WEP Encryption encryption.

  • Page 41: Figure 4-7 Ad-Hoc (Ibss) Wireless Lan

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 4-7 Ad-hoc (IBSS) Wireless LAN Select Ad Hoc in the Operating Mode drop-down list box to display the screen as shown. Figure 4-8 Wireless : Ad Hoc Wireless LAN...

  • Page 42: Bridge

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The following table describes the additional fields that display when you select the Ad Hoc operating mode in the Wireless screen. Table 4-2 Wireless : Ad Hoc LABEL DESCRIPTION Operating Mode Select Ad Hoc in this field to display the screen.

  • Page 43: Figure 4-10 Bridge Loop: Two Bridges Connected To Hub

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Be careful to avoid bridge loops when you enable bridging in the ZyAIR. Bridge loops cause broadcast traffic to circle the network endlessly, resulting in possible throughput degradation and disruption of communications. The following examples show two network topologies that can lead to this problem: If two or more ZyAIRs (in bridge mode) are connected to the same hub as shown next.

  • Page 44: Figure 4-12 Wireless : Bridge

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 4-12 Wireless : Bridge The following table describes the additional fields that display when you select the Bridge operating mode in the Wireless screen. Table 4-3 Wireless : Bridge LABEL DESCRIPTION Select Bridge in this field to display the screen as shown in Figure 4-12.
  • Page 45 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 4-3 Wireless : Bridge LABEL DESCRIPTION WEP Encryption Select Disable to allow wireless stations to communicate with the AP without any data encryption. Select 64-bit WEP or 128-bit WEP to enable data encryption.

  • Page 47: Chapter 5 Ip Screen

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 5 IP Screen This chapter discusses how to configure IP on the ZyAIR. Factory Ethernet Defaults The Ethernet parameters of the ZyAIR are preset in the factory with the following values: •...

  • Page 48: Configuring Ip

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 5-1 Private IP Address Ranges 10.0.0.0 10.255.255.255 172.16.0.0 172.31.255.255 192.168.0.0 192.168.255.255 You can obtain your IP address from the IANA, from an ISP or have it assigned by a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks.

  • Page 49: Table 5-2 Ip

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The following table describes the labels in this screen. Table 5-2 IP LABEL DESCRIPTION IP Address Assignment Get automatically Select this option if your ZyAIR is using a dynamically assigned IP address from a DHCP server each time.

  • Page 51: Logs

    Logs Part III: LOGS This part provides information and configuration instructions for the logs.

  • Page 53: Chapter 6 Logs Screens

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 6 Logs Screens This chapter contains information about configuring general log settings and viewing the ZyAIR’s logs. Refer to the appendix for example log message explanations. Configuring View Log The web configurator allows you to look at all of the ZyAIR’s logs in one location.

  • Page 54: Configuring Log Settings

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 6-1 View Log LABEL DESCRIPTION Display Select a log category from the drop down list box to display logs within the selected category. To view all logs, select All Logs. The number of categories shown in the drop down list box depends on the selection in the Log Settings page.

  • Page 55: Figure 6-2 Log Settings

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 6-2 Log Settings The following table describes the labels in this screen. Table 6-2 Log Settings LABEL DESCRIPTION Address Info: Logs Screens...
  • Page 56 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 6-2 Log Settings LABEL DESCRIPTION Mail Server Enter the server name or the IP address of the mail server for the e-mail addresses specified below. If this field is left blank, logs and alert messages will not be sent via e-mail.
  • Page 57 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 6-2 Log Settings LABEL DESCRIPTION Send Immediate Alert Select the categories of alerts for which you want the ZyAIR to immediately send e-mail alerts. Apply Click Apply to save your customized settings and exit this screen.

  • Page 59: Maintenance

    Maintenance Part IV: MAINTENANCE This part describes the Maintenance web configurator screens.

  • Page 61: Chapter 7 Maintenance

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 7 Maintenance This chapter displays system information such as ZyNOS firmware, port IP addresses and port traffic statistics. Maintenance Overview The maintenance screens can help you view system information, upload new firmware, manage configuration and restart your ZyAIR.

  • Page 62: System Statistics

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 7-1 System Status LABEL DESCRIPTION ZyNOS Firmware This is the ZyNOS Firmware version and the date created. ZyNOS is ZyXEL's Version proprietary Network Operating System design. IP Address This is the Ethernet port IP address.

  • Page 63: Wireless Screen

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 7-2 System Status: Show Statistics LABEL DESCRIPTION Status This shows the port speed and duplex setting if you are using Ethernet encapsulation for the Ethernet port. This shows the transmission speed only for wireless port.

  • Page 64: Figure 7-3 Channel Usage

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 7-3 Channel Usage The following table describes the labels in this screen. Table 7-3 Channel Usage LABEL DESCRIPTION This is the Service Set IDentification name of the AP in an Infrastructure wireless network or wireless station in an Ad-Hoc wireless network.

  • Page 65: F/W Upload Screen

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 7-3 Channel Usage LABEL DESCRIPTION “Network mode” in this screen refers to your wireless LAN infrastructure (refer to the Wireless LAN chapter) and WEP setup. Network Mode Network modes are: Infra (same as an extended service set ESS), Infra, WEP (WEP encryption is enabled), Ad-Hoc (same as an independent basic service set IBSS), or Ad- Hoc, WEP.

  • Page 66: Figure 7-5 Firmware Upload In Process

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 7-4 Firmware Upload LABEL DESCRIPTION File Path Type in the location of the file you want to upload in this field or click Browse ... to find it. Click Browse... to find the .bin file you want to upload. Remember that you must decompress Browse...

  • Page 67: Configuration Screen

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 7-6 Network Temporarily Disconnected After two minutes, log in again and check your new firmware version in the System Status screen. If the upload was not successful, the following screen will appear. Click Return to go back to the F/W Upload screen.

  • Page 68: Restore Configuration

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 7-8 Backup Configuration 7.5.2 Restore Configuration Restore configuration replaces your ZyAIR's current configuration with a previously saved configuration. Restore files (usually) have a .ROM extension, e.g., "zyair.rom". The system reboots automatically after the file transfer is complete and uses the configured values in the file.

  • Page 69: Figure 7-10 Configuration Upload Successful

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 7-5 Restore Configuration LABEL DESCRIPTION Type in the location of the file you want to upload in this field or click Browse ... to find it. File Path Click Browse... to find the file you want to upload. Remember that you must decompress Browse...

  • Page 70: Back To Factory Defaults

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge If the upload was not successful, the following screen will appear. Click Return to go back to the Configuration screen. Figure 7-12 Configuration Upload Error 7.5.3 Back to Factory Defaults Clicking the Reset button in this section clears all user-entered configuration information and returns the ZyAIR to its factory defaults as shown on the screen.

  • Page 71: Figure 7-14 Reset Warning Message

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Figure 7-14 Reset Warning Message You can also press the RESET button on the rear panel to reset the factory defaults of your ZyAIR. Refer to the Resetting the ZyAIR section for more information on the RESET button.

  • Page 73: Smt Configuration

    SMT Configuration Part V: SMT CONFIGURATION This part contains SMT (System Management Terminal) configuration and background information for features only configurable by SMT. See the web configurator parts of this guide for background information on features configurable by web configurator and SMT.

  • Page 75: Chapter 8 Introducing The Smt

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 8 Introducing the SMT This chapter describes how to access the SMT and provides an overview of its menus Connect to your ZyAIR Using Telnet The following procedure details how to telnet into your ZyAIR.

  • Page 76: Zyair Smt Menu Overview Example

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 23.1 – System Security – Change Password Old Password= **** New Password= ? Retype to confirm= ? Enter here to CONFIRM or ESC to CANCEL: Figure 8-2 Menu 23.1 System Security : Change Password Step 4.

  • Page 77: Figure 8-3 Zyair B-420 Smt Menu Overview Example

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge ZyAIR B-420 Main Menu Menu 22 Menu 24 Menu 24.1 Menu 1 Menu 23 Menu 3 SNMP System System Maintenance General Setup System Password LAN Setup Configuration Maintenance - Status Menu 24.2.1 Menu 24.2.2...

  • Page 78: Navigating The Smt Interface

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Navigating the SMT Interface The SMT (System Management Terminal) is the interface that you use to configure your ZyAIR. Several operations that you should be familiar with before you attempt to modify the configuration are listed in the table below.

  • Page 79: System Management Terminal Interface Summary

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Copyright (c) 1994 - 2003 ZyXEL Communications Corp. ZyAIR B-420 Main Menu Getting Started Advanced Management 1. General Setup 22. SNMP Configuration 3. LAN Setup 23. System Password 24. System Maintenance Advanced Applications 99.

  • Page 81: Chapter 9 General Setup

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 9 General Setup The chapter shows you the information on general setup. General Setup Menu 1 – General Setup contains administrative and system-related information (shown next). The System Name field is for identification purposes. It is recommended you type your computer's "Computer name".

  • Page 82: Table 9-1 Menu 1 General Setup

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 9-1 Menu 1 General Setup FIELD DESCRIPTION EXAMPLE System Name Choose a descriptive name for identification purposes. This name can B-420 be up to 30 alphanumeric characters long. Spaces are not allowed, but dashes “-”...

  • Page 83: Chapter 10 Lan Setup

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 10 LAN Setup This chapter shows you how to configure the LAN on your ZyAIR. 10.1 LAN Setup This section describes how to configure the Ethernet using Menu 3 – LAN Setup. From the main menu, enter 3 to display menu 3.

  • Page 84: Wireless Lan Setup

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Follow the instructions in the following table to configure the fields in this menu. Table 10-1 Menu 3.2 TCP/IP Setup FIELD DESCRIPTION EXAMPLE IP Address Press [SPACE BAR] and then [ENTER] to select Dynamic to have the...

  • Page 85: Figure 10-3 Menu 3.5 Wireless Lan Setup

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 3.5 - Wireless LAN Setup Operating Mode= Infrastructure ESSID= Any Channel ID= N/A RTS Threshold= 2432 Frag. Threshold= 2432 WEP Encryption= Disable Default Key= N/A Key1= N/A Key2= N/A Key3= N/A Key4= N/A Authen.
  • Page 86 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 10-2 Menu 3.5 Wireless LAN Setup FIELD DESCRIPTION EXMAPLE Select Disable to allow wireless stations to communicate with the access Disable points without any data encryption. Encryption Select 64-bit WEP or 128-bit WEP to enable data encryption.

  • Page 87: Configuring Bridge Link

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 10.3.1 Configuring Bridge Link Follow the steps below to configure bridge link on your ZyAIR. Step 1. From the main menu, enter 3 to open Menu 3 – LAN Setup. Step 2.

  • Page 88: Table 10-3 Menu 3.5.4 Bridge Link Configuration

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The following table describes the fields in this menu. Table 10-3 Menu 3.5.4 Bridge Link Configuration FIELD DESCRIPTION EXAMPLE Active Press [SPACE BAR] to select Yes or No and press [ENTER]. Peer...

  • Page 89: Chapter 11 Snmp Configuration

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 11 SNMP Configuration This chapter explains SNMP configuration menu 22. 11.1 About SNMP Simple Network Management Protocol is a protocol used for exchanging management information between network devices. SNMP is a member of the TCP/IP protocol suite. Your ZyAIR supports SNMP agent functionality, which allows a manager station to manage and monitor the ZyAIR through the network.

  • Page 90: Supported Mibs

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge An agent is a management software module that resides in a managed device (the ZyAIR). An agent translates the local management information from the managed device into a form compatible with SNMP.

  • Page 91: Snmp Traps

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 22 - SNMP Configuration SNMP: Get Community= public Set Community= public Trusted Host= 0.0.0.0 Trap: Community= public Destination= 0.0.0.0 Press ENTER to Confirm or ESC to Cancel: Figure 11-2 Menu 22 SNMP Configuration The following table describes the SNMP configuration parameters.

  • Page 92: Table 11-2 Snmp Traps

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 11-2 SNMP Traps TRAP # TRAP NAME DESCRIPTION coldStart (defined in RFC-1215) A trap is sent after booting (power on). warmStart (defined in RFC-1215) A trap is sent after booting (software reboot).

  • Page 93: Chapter 12 System Information

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 12 System Information This chapter covers the information and diagnostic tools in SMT menus 24.1 to 24.3. These tools include updates on system status, port status, log and trace capabilities and upgrades for the system software.

  • Page 94: Figure 12-2 Menu 24.1 System Maintenance : Status

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 24.1 - System Maintenance - Status 00:18:45 Sat. Jan. 01, 2000 Port Status TxPkts RxPkts Cols Tx B/s Rx B/s Up Time 100M/Full 0:17:32 WLAN 0:17:33 Port Ethernet Address IP Address...

  • Page 95: System Information

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 12-1 Menu 24.1 System Maintenance : Status FIELD DESCRIPTION System Up Time This is the time the ZyAIR is up and running from the last reboot. 12.2 System Information To get to the System Information: Step 1.

  • Page 96: Console Port Speed

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The following table describes the fields in this menu. Table 12-2 System Maintenance : Information FIELD DESCRIPTION Name Displays the system name of your ZyAIR. This information can be changed in Menu 1 – General Setup.

  • Page 97: Log And Trace

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 12.3 Log and Trace Your ZyAIR provides the error logs and trace records that are stored locally. 12.3.1 Viewing Error Log The first place you should look for clues when something goes wrong is the error log. Follow the procedures to view the local error/trace log: Step 1.

  • Page 99: Chapter 13 Firmware And Configuration File Maintenance

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 13 Firmware and Configuration File Maintenance This chapter tells you how to backup and restore your configuration file as well as upload new firmware and configuration files using the SMT screens.

  • Page 100: Backup Configuration

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 13-1 Filename Conventions FILE TYPE INTERNAL EXTERNAL DESCRIPTION NAME NAME Configuration File Rom-0 *.rom This is the configuration filename on the ZyAIR. Uploading the rom-0 file replaces the entire ROM file...

  • Page 101: Using The Ftp Command From The Dos Prompt

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 13.2.2 Using the FTP command from the DOS Prompt Step 1. Launch the FTP client on your computer. Step 2. Enter “open” and the IP address of your ZyAIR. Step 3. Press [ENTER] when prompted for a username.

  • Page 102: Backup Configuration Using Tftp

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Table 13-2 General Commands for Third Party FTP Clients COMMAND DESCRIPTION Initial Remote Specify the default remote directory (path). Directory Initial Local Specify the default local directory (path). Directory 13.2.3 Backup Configuration Using TFTP The ZyAIR supports the up/downloading of the firmware and the configuration file using TFTP (Trivial File Transfer Protocol) over LAN.

  • Page 103: Restore Configuration

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge where “i” specifies binary image transfer mode (use this mode when transferring binary files), “host” is the ZyAIR IP address, “get” transfers the file source on the ZyAIR (rom-0 name of the configuration file on the ZyAIR) to the file destination on the computer and renames it config.rom.

  • Page 104: Uploading Firmware And Configuration Files

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 24.6 – Restore Configuration To transfer the firmware and the configuration file, follow the procedure below: 1. Launch the FTP client on your workstation. 2. Type "open" and the IP address of your router. Then type "root" and SMT password as requested.

  • Page 105: Firmware Upload

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 13.4.1 Firmware Upload FTP is the preferred method for uploading the firmware and configuration. To use this feature, your computer must have an FTP client. When you telnet into the ZyAIR, you will see the following screens for uploading firmware and the configuration file using FTP.

  • Page 106: Using The Ftp Command From The Dos Prompt Example

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Menu 24.7.2 - System Maintenance - Upload System Configuration File To upload the system configuration file, follow the procedure below: 1. Launch the FTP client on your workstation. 2. Type "open" and the IP address of your system. Then type "root" and SMT password as requested.

  • Page 107: Tftp File Upload

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 331 Enter PASS command Password: 230 Logged in ftp> bin 200 Type I OK ftp> put firmware.bin ras 200 Port command okay 150 Opening data connection for STOR ras 226 File received OK ftp: 327680 bytes sent in 1.10Seconds 297.89Kbytes/sec.

  • Page 108: Example: Tftp Command

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 13.4.5 Example: TFTP Command The following is an example TFTP command: TFTP [-i] host put firmware.bin ras where “i” specifies binary image transfer mode (use this mode when transferring binary files), “host” is the ZyAIR’s IP address, “put”...

  • Page 109: Chapter 14 System Maintenance And Information

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chapter 14 System Maintenance and Information This chapter leads you through SMT menus 24.8 and 24.10. 14.1 Command Interpreter Mode The Command Interpreter (CI) is a part of the main system firmware. The CI provides much of the same functionality as the SMT, while adding some low-level setup and diagnostic functions.

  • Page 110: Time And Date Setting

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge 14.2 Time and Date Setting The ZyAIR keeps track of the time and date. There is also a software mechanism to set the time manually. Menu 24.10 allows you to update the time and date settings of your ZyAIR. The real time is then displayed in the ZyAIR error logs and firewall logs.

  • Page 111: Appendices

    Appendices Part VI: APPENDICES This part provides troubleshooting and background information about setting up your computer’s IP address, wireless LAN, antenna selection and IP subnetting. It also provides information on the antenna, PoE, command interpreter interface, logs and power adaptor specifications.

  • Page 113: Appendix A Troubleshooting

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix A Troubleshooting This appendix covers potential problems and possible remedies. After each problem description, some instructions are provided to help you to diagnose and to solve the problem. Problems Starting Up the ZyAIR...

  • Page 114: Problems Communicating With Other Computers

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Problems Communicating with Other Computers Chart A-3 Troubleshooting Communication Problems PROBLEM CORRECTIVE ACTION The ZyAIR computer Make sure you are connected to the network. cannot communicate with the other computer. A. Infrastructure Make sure that the AP and the associated computers are turned on and working properly.

  • Page 115: Appendix B Brute-Force Password Guessing Protection

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix B Brute-Force Password Guessing Protection The following describes the commands for enabling, disabling and configuring the brute-force password guessing protection mechanism for the password. See the Command Interpreter appendix for information on the command structure.

  • Page 117: Appendix C Setting Up Your Computer's Ip Address

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix C Setting up Your Computer’s IP Address All computers must have a 10M or 100M Ethernet adapter card and TCP/IP installed. Windows 95/98/Me/NT/2000/XP, Macintosh OS 7 and later operating systems and all versions of UNIX/LINUX include the software components you need to install and use TCP/IP on your computer.
  • Page 118 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge If you need the adapter: In the Network window, click Add. Select Adapter and then click Add. Select the manufacturer and model of your network adapter and then click OK. If you need TCP/IP: In the Network window, click Add.
  • Page 119 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Click the IP Address tab. -If your IP address is dynamic, select Obtain an IP address automatically. -If you have a static IP address, select Specify an IP address and type your information into the IP Address and Subnet Mask fields.
  • Page 120 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Click the Gateway tab. -If you do not know your gateway’s IP address, remove previously installed gateways. -If you have a gateway IP address, type it in the New gateway field and click Add.
  • Page 121 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge For Windows XP, click Start, Control Panel. In Windows 2000/NT, click Start, Settings, Control Panel. For Windows XP, click Network Right-click Local Area Connection and Connections. For Windows 2000/NT, click then click Properties.
  • Page 122 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Select Internet Protocol (TCP/IP) (under the General tab in Win XP) and click Properties. The Internet Protocol TCP/IP Properties window opens (the General tab in Windows XP). -If you have a dynamic IP address click Obtain an IP address automatically.
  • Page 123 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge -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...
  • Page 124 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge In the Internet Protocol TCP/IP Properties window (the General tab in Windows XP): -Click Obtain DNS server address automatically if you do not know your DNS server IP address(es). -If you know your DNS server IP address(es),...
  • Page 125 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Click the Apple menu, Control Panel and double-click TCP/IP to open the TCP/IP Control Panel. Select Ethernet built-in from the Connect via list. For dynamically assigned settings, select Using DHCP Server from the Configure: list.
  • Page 126 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge For statically assigned settings, do the following: -From the Configure box, select Manually. -Type your IP address in the IP Address box. -Type your subnet mask in the Subnet mask box. -Type the IP address of your ZyAIR in the Router address box.
  • Page 127 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Click Network in the icon bar. - Select Automatic from the Location list. - Select Built-in Ethernet from the Show list. - Click the TCP/IP tab. For dynamically assigned settings, select Using DHCP from the Configure list.
  • Page 129 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix D Wireless LAN and IEEE 802.11 A wireless LAN (WLAN) provides a flexible data communications system that you can use to access various services (navigating the Internet, email, printer services, etc.) without the use of a cabled connection.
  • Page 130 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Spread Spectrum (DSSS) and Frequency-Hopping Spread Spectrum (FHSS), in the 2.4 to 2.4825 GHz unlicensed ISM (Industrial, Scientific and Medical) band. The third method is infrared technology, using very high frequencies, just below visible light in the electromagnetic spectrum to carry data.
  • Page 131 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge points can provide wireless coverage for an entire building or campus. All communications between stations or between a station and a wired network client go through the access point. The Extended Service Set (ESS) shown in the next figure consists of a series of overlapping BSSs (each containing an Access Point) connected together by means of a Distribution System (DS).

  • Page 133: Appendix E Antenna Selection And Positioning Recommendation

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix E Antenna Selection and Positioning Recommendation An antenna couples RF signals onto air. A transmitter within a wireless device sends an RF signal to the antenna, which propagates the signal through the air. The antenna also operates in reverse by capturing RF signals from the air.
  • Page 134 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge environment. With a wide coverage area, it is possible to make circular overlapping coverage areas with multiple access points. • Directional antennas concentrate the RF signal in a beam, like a flashlight. The angle of the beam width determines the direction of the coverage pattern;...

  • Page 135: Appendix F Power Over Ethernet Specifications

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix F Power over Ethernet Specifications You can use a power over Ethernet injector to power this device. The injector must comply to IEEE 802.3af. Chart F-1 Power over Ethernet Injector Specifications Power Output 15.4 Watts maximum...
  • Page 137 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix G IP Subnetting IP Addressing Routers “route” based on the network number. The router that delivers the data packet to the correct destination host uses the host ID. IP Classes An IP address is made up of four octets (eight bits), written in dotted decimal notation, for example, 192.168.1.1.
  • Page 138 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge A class “A” address (24 host bits) can have 2 –2 hosts (approximately 16 million hosts). Since the first octet of a class “A” IP address must contain a “0”, the first octet of a class “A” address can have a value of 0 to 127.
  • Page 139 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge sequence of ones beginning from the left most bit of the mask, followed by a continuous sequence of zeros, for a total number of 32 bits. Since the mask is always a continuous number of ones beginning from the left, followed by a continuous number of zeros for the remainder of the 32 bit mask, you can simply specify the number of ones instead of writing the value of each octet.
  • Page 140 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Divide the network 192.168.1.0 into two separate subnets by converting one of the host ID bits of the IP address to a network number bit. The “borrowed” host ID bit can be either “0” or “1” thus giving two subnets;...
  • Page 141 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge to an actual host for the first subnet is 192.168.1.1 and the highest is 192.168.1.126. Similarly the host ID range for the second subnet is 192.168.1.129 to 192.168.1.254. Example: Four Subnets The above example illustrated using a 25-bit subnet mask to divide a class “C” address space into two subnets.
  • Page 142 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chart G-9 Subnet 3 NETWORK NUMBER LAST OCTET BIT VALUE Subnet Mask (Binary) 11111111.11111111.11111111. 11000000 Subnet Address: 192.168.1.128 Lowest Host ID: 192.168.1.129 Broadcast Address: 192.168.1.191 Highest Host ID: 192.168.1.190 Chart G-10 Subnet 4...
  • Page 143 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge The following table is a summary for class “C” subnet planning. Chart G-12 Class C Subnet Planning NO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET 255.255.255.128 (/25) 255.255.255.192 (/26) 255.255.255.224 (/27)

  • Page 144: Appendix G Ip Subnetting

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chart G-13 Class B Subnet Planning NO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET 255.255.255.128 (/25) 255.255.255.192 1024 (/26) 255.255.255.224 2048 (/27) 255.255.255.240 4096 (/28) 255.255.255.248 8192 (/29) 255.255.255.252...

  • Page 145: Appendix H Command Interpreter

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix H Command Interpreter The following describes how to use the command interpreter. Enter 24 in the main menu to bring up the system maintenance menu. Enter 8 to go to Menu 24.8 - Command Interpreter Mode. See the included disk or zyxel.com for more detailed information on these commands.

  • Page 147: Appendix I Log Descriptions

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix I Log Descriptions Chart I-1 System Maintenance Logs LOG MESSAGE DESCRIPTION SMT Login Someone has logged on to the ZyAIR's SMT interface. Successfully SMT Login Fail Someone has failed to log on to the ZyAIR 's SMT interface.
  • Page 148 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chart I-2 ICMP Notes TYPE CODE DESCRIPTION Port unreachable A packet that needed fragmentation was dropped because it was set to Don't Fragment (DF) Source route failed Source Quench A gateway may discard internet datagrams if it does not have the buffer space needed to queue the datagrams for output to the next network on the route to the destination network.
  • Page 149 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Chart I-2 ICMP Notes TYPE CODE DESCRIPTION Information Reply Information reply message Chart I-3 Sys log LOG MESSAGE DESCRIPTION Mon dd hr:mm:ss hostname This message is sent by the "RAS" when this syslog is generated.
  • Page 150 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Displaying Logs Use the sys logs display command to show all of the logs in the ZyAIR’s log. Use the sys logs category display command to show the log settings for all of the log categories.

  • Page 151: Appendix J Power Adaptor Specifications

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix J Power Adaptor Specifications NORTH AMERICAN PLUG STANDARDS AC Power Adaptor Model AD48-1201200DUY Input Power AC120Volts/60Hz/0.25A Output Power DC12Volts/1.2A Power Consumption 10 W Safety Standards UL, CUL (UL 1950, CSA C22.2 No.234-M90)
  • Page 152 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge JAPAN PLUG STANDARDS AC Power Adaptor Model JOD-48-1124 Input Power AC100Volts/ 50/60Hz/ 27VA Output Power DC12Volts/1.2A Power Consumption 10 W Safety Standards T-Mark (Japan Dentori) AUSTRALIA AND NEW ZEALAND PLUG STANDARDS AC Power Adaptor Model...

  • Page 153: Appendix K Index

    ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Appendix K Index Diagnostic Tools........... 12-1 Direct Sequence Spread Spectrum......D-2 Distribution System ..........D-3 DS...........See Distribution System Ad-hoc Configuration..........D-2 DSSS ....See Direct Sequence Spread Spectrum Alternative Subnet Mask Notation ......F-3 Antenna Directional ............
  • Page 154 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge IEEE 802.11 ............D-1 Restore Configuration ........... 13-5 Independent Basic Service Set....D-2, 4-8, 7-4 RF signals .............. D-2 Infrastructure Configuration ........D-3 Roaming..............4-6 Internet access............10-1 Example.............. 4-6 Internet Security Gateway ........1-1 RTS Threshold ..........4-1, 10-3 IP Address ........5-1, 5-2, 10-2, 12-4...
  • Page 155 ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge Accessing ZyAIR..........A-2 WEP................ 4-1 Password ............A-1 WEP Encryption ........4-8, 4-13, 10-4 Start-Up.............. A-1 Wireless LAN ..........D-1, 10-2 Benefits ..............D-1 Wireless LAN Setup ..........10-2 WLAN ..........See Wireless LAN Upload Firmware...........13-6...

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