Elsa Airlancer mc-11 User manual

AirLancer

MC-II

AirLancer

USB-II

AirLancer

PCI-II

While the informationin thismanual hasbeen compiled with greatcare, it may not be deemed anassuranceof product

characteristics.

Thereproductionanddistributionofthedocumentationandsoftwaresuppliedwiththisproductandtheuseofitscontents

issubjecttowritten authorization from LANCOM Systems.

Trademarks

Windows®, Windows NT®and Microsoft®are registered trademarks of Microsoft, Corp.

Subject tochange without notice.No liability for technicalerrorsor omissions.

March 2001

110046

AirLancer

Preface

Thank you for placing yourtrust in this product.

Wirelessnetworksare economical alternativesor additionsto

local wired networks (LANs). Notebooks and PCs can use mobile network

cards to communicate with one another or access wired networks via access

points and canevenbe integrated into the ISDN network.

Thisdocumentation isintended for the user of theAirLancer MC-11,

AirLancer USB-11 andAirLancer PCI-11 mobilenetworkcards.

First we describe the devices and their options, then provide instructions for

installingthedevicesandthedriversandasaninitialapplicationexamplewe

describe how to connect two computers with each other and to an access

point.

Documentation

This documentation was compiled by several members of our staff from a

variety of departments in order to ensureyou the best possible support when

using yourproduct.

Our online services are available to you around the clock

should you have anyqueries regarding the topicsdiscussed in this manual or

require anyfurther support.

AirLancer

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 What is a wireless LAN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 What is required for a wireless LAN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2.1 Radio interfaces with the network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2.2 The center—the access point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3.1 The ad hoc network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3.2 The infrastructure network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.4 IEEE 802.11b radio transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.5 The threeAirLancers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.1 Matching versions for international use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.2 Encryption in two levels of security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.6 What now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 AirLancer MC-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2 The card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.1 Checking the system requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.2 Inserting the card in the computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.3 Driver installation under Windows 98 and Windows 95 . . . . . . . . . . . . . . . . 18

2.3.4 Installation of the drivers under Windows Me. . . . . . . . . . . . . . . . . . . . . . . . 19

2.3.5 Installation of the drivers under Windows 2000 . . . . . . . . . . . . . . . . . . . . . . 19

2.3.6 Installation of the drivers under Windows NT 4.0 . . . . . . . . . . . . . . . . . . . . . 20

2.3.7 Installation of the drivers under Windows CE . . . . . . . . . . . . . . . . . . . . . . . . 20

2.3.8 Installation of the drivers under Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3 AirLancer USB-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2 The adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.3.1 Checking the system requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.3.2 Connecting the adapter to your PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.3.3 Installation of the drivers under Windows 98 . . . . . . . . . . . . . . . . . . . . . . . . 25

3.3.4 Installation of the drivers under Windows Me. . . . . . . . . . . . . . . . . . . . . . . . 26

3.3.5 Installation of the drivers under Windows 2000 . . . . . . . . . . . . . . . . . . . . . . 26

AirLancer

4 AirLancer PCI-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 The adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3.1 Checking the system requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3.2 Installing the AirLancer PCI-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.3.3Insertingthe AirLancer MC-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.3.4 Installation of the drivers under Windows 98 . . . . . . . . . . . . . . . . . . . . . . . . 32

4.3.5 Installation of the drivers under Windows Me. . . . . . . . . . . . . . . . . . . . . . . . 33

4.3.6 Installation of the drivers under Windows 2000 . . . . . . . . . . . . . . . . . . . . . . 33

4.3.7 Installation of the drivers under Windows NT 4.0 . . . . . . . . . . . . . . . . . . . . . 34

4.3.8 Installation of the drivers under Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5 The AirLancer Client Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.2 Basic configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.3 Overview of functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.3.1 Administration of profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.3.2 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.3.3 Analysis, diagnostics and information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.3.4 Further information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.4 Encryption settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.4.1 General rules for WEP keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.4.2 Valid key characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.4.3 Continuous change of key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6 Example configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.1 Direct PC connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.2 Link to a company network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7 AirLancer Extender .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8 Security in the wireless LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.1 Closed network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.2 Access control via MAC address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

8.3 Encryption of the data transfer (WEP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.3.1 How WEP works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.3.2 Notes for the correct use of keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.3.3 Further security improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

AirLancer

9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.2 Radio channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

9.3 Restrictions for use within EU countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

9.4 Declarations of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

9.4.1 European Union (CE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

9.4.2 Federal Communications Commission (FCC). . . . . . . . . . . . . . . . . . . . . . . . . . 55

9.5 Warranty conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

AirLancer

|Introduction 9

AirLancer

1 Introduction

The advantages of wireless networks (wireless LANs) are obvious:

Notebooks and PCs can be set up where they are wanted. Problems with

missingports orconstructionalterationsareathingofthepastwithwireless

networking.

Network links in conferences or presentations, access to resources in

adjacent buildings and exchanging data with mobile units are only a few of

the options available with a wireless LAN.

1.1 What is a wireless LAN?

WirelessLANsconnectseparateunits(PCsandnotebooks)toalocalnetwork

(also LAN –LocalArea Network). Unlike conventional LANs, the connection

is established through radio transmission, not via a network cable. For this

reason, wireless LANs are also called Wireless Local Area Networks

(WLAN).

All of the standard functions of a wired network are also available in a

wireless LAN: Access to files, servers, printers etc. is possible as is the

integration of the single stations into an internal company e-mail system or

access to the Internet.

1.2 What is required for a wireless LAN?

The question of the required hardware arises in conjunction with the

advantages of awireless LAN.

1.2.1 Radio interfaces with the network

Every unit in the wireless LAN needs access to the wireless LAN in the form

ofaradiointerface.Devicesthatdonotcomewithastandardradiointerface,

can be upgraded using an advanced card oranadapter. You use an

AirLancer to upgrade your unit to access the wireless LAN.

AwirelessLANconsistsofatleasttwounitswithradiointerfaces.Bothunits

then communicate directly via radio.

Introduction |

AirLancer

1.2.2 The center—the access point

The convenience and performance of a wireless LAN can enhanced with an

additionalaccess point.This access point permits thecentral administration

of the wireless LAN. In addition, the access point can be used to link the

wireless LAN to a cable-based LAN or to the Internet.

Depending on whether or not an access point is used, there are two possible

waystooperatethewirelessLAN:Eitherasanadhocnetwork(peer-to-peer),

or an infrastructure network (access point).

1.3 Operating modes

Let's havea look at both operating modes.

1.3.1 The ad hoc network

Inthecaseoftheadhocnetwork,twoormorecomputersthateachhavetheir

own interfaces to the wireless LAN are connected to one another. All

computers in a WLAN can then communicate with one another with no

additional hardware.

Ad hoc network This mode is also generally referred to as a peer-to-peer network

(spontaneous network). PCs can connect to each other immediately and

exchange data.

1.3.2 The infrastructure network

An access point is required to connect to an existing network. The access

pointactsastheswitchingcenterfordataexchangewithintheWLAN.Italso

offers access to a cable-based LAN or tothe ISDN and Internet.

Ad hoc network

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