Lancom 1821n Wireless Manuel utilisateur

110752/0310

LANCOM Systems GmbH

Adenauerstr. 20/B2

52146 Würselen

Germany

E-Mail: [email protected]

Internet www.lancom.eu

LANCOM 1811n Wireless

LANCOM 1821n Wireless

LANCOM 1811n Wireless 쮿LANCOM 1821n Wireless

쮿Handbuch

쮿Manual

...connecting your business

110752_LC-18x1n-MANUAL-cover_REV1 1110752_LC-18x1n-MANUAL-cover_REV1 1 19.03.2010 13:39:2619.03.2010 13:39:26

LANCOM 1811n Wireless

LANCOM 1821n Wireless

While the information in this manual has been compiled with great care, it may not be deemed an assurance of product

characteristics. LANCOM Systems shall be liable only to the degree specified in the terms of sale and delivery.

The reproduction and distribution of the documentation and software supplied with this product and the use of its contents

is subject to written authorization from LANCOM Systems. We reserve the right to make any alterations that arise as the

result of technical development.

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

The LANCOM Systems logo, LCOS and the name LANCOM are registered trademarks of LANCOM Systems GmbH. All other

names or descriptions used may be trademarks or registered trademarks of their owners.

Subject to change without notice. No liability for technical errors or omissions.

Products from LANCOM Systems include software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http:/

/www.openssl.org/).

Products from LANCOM Systems include cryptographic software written by Eric Young (eay@cryptsoft.com).

Products from LANCOM Systems include software developed by the NetBSD Foundation, Inc. and its contributors.

Products from LANCOM Systems contain the LZMA SDK developed by Igor Pavlov.

LANCOM Systems GmbH

Adenauerstr. 20/B2

52146 Wuerselen

Germany

www.lancom.eu

Wuerselen, März 2010

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Preface

Preface

Thank you for your confidence in us!

With LANCOM 1811n Wireless and LANCOM 1821n Wireless you have chosen

a powerful wireless router that possesses integrated DSL respectively ADSL

and ISDN interfaces by default as well as an integrated 4-port switch.

LANCOM wireless routers provide the comprehensive functions of an access

point, professional firewall and high-quality VPN gateway in a single, com-

pact device. They thus combine most important functions as a reliable solution

for small and mid-sized enterprises, home and branch offices.

The wireless routers operate either in the 2.4 GHz or in the 5 GHz frequency

band. The 5 GHz band is ideal as the backbone for cost-effective, high-

bandwidth transmission that is free of interference and highly secure. The

LANCOM Wireless Router series models can operate in stand-alone mode, in

managed mode or in client mode. The access point can be used in managed

mode with a LANCOM WLAN Controller without any additional software

upgrades.

The LANCOM 1811n Wirelessand LANCOM 1821n Wireless provide a

maximum wireless LAN performance of up to 300 Mbps thanks to the support

of the IEEE 802.11n standard. The 802.11n standard includes many new

mechanisms—such as the use of MIMO, 40-MHz channels, packet

aggregation and block acknowledgement—in order to increase the

bandwidth available for user applications significantly. This allows a more

than fivefold increase in speed over 802.11a/g networks with physical data

rates of up to 300 Mbps.

MIMO (multiple input multiple output) technology allows the LANCOM

Wireless Router to transfer several data streams in parallel and thus

significantly improve data throughput. MIMO uses several transmit/receive

units for both the transmitter and the receiver. The separate data streams are

identified by unique characteristics that result from the different paths that

the data take. By processing multiple data streams MIMO achieves not just

higher data throughput but also better coverage (fewer "radio black spots")

and better stability. These are the most important arguments for 802.11n for

commercial customers in particular.

Model variants

This documentation is intended for LANCOM Wireless Router users. The

following models are available:

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Preface

LANCOM 1811n Wireless

LANCOM 1821n Wireless

Model

restrictions

Passages applying only to certain models are identified either in the text itself

or by a comment in the margin.

Otherwise the documentation refers to all models collectively as the LANCOM

Wireless Router series.

Security settings

To maximize the security available from your product, we recommend that you

undertake all of the security settings (e.g. firewall, encryption, access protec-

tion) that were not already activated when you purchased the product. The

LANconfig Wizard 'Security Settings' will help you with this task. Further infor-

mation is also available in the chapter 'Security settings'.

We would additionally like to ask you to refer to our Internet site www.lan-

com.eu for the latest information about your product and technical develop-

ments, and also to download our latest software versions.

Components of the documentation

The documentation of your device consists of the following parts:

Installation Guide

User manual

Reference manual

Menu Reference Guide

You are now reading the user manual. It contains all information you need to

put your device into operation. It also contains all of the important technical

specifications.

The Reference Manual is to be found as an Acrobat document (PDF file) at

www.lancom.eu/download or on the CD supplied. It is designed as a supple-

ment to the user manual and goes into detail on topics that apply to a variety

of models. These include, for example:

The system design of the operating system LCOS

Configuration

Management

Diagnosis

Security

Routing and WAN functions

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Preface

Firewall

Quality of Service (QoS)

Virtual Private Networks (VPN)

Virtual Local Networks (VLAN)

Wireless networks (WLAN)

Voice communication in computer networks with Voice over IP (VoIP)

Backup solutions

LANCAPI

Further server services (DHCP, DNS, charge management)

The Menu Reference Guide (also available at www.lancom.eu/download or on

the CD supplied) describes all of the parameters in LCOS, the operating system

used by LANCOM products. This guide is an aid to users during the configu-

ration of devices by means of WEBconfig or the telnet console.

This documentation was created by …

... several members of our staff from a variety of departments in order to

ensure you the best possible support when using your LANCOM product.

Should you find any errors, or if you would like to suggest improvements, ple-

ase do not hesitate to send an e-mail directly to:

[email protected]

Our online services www.lancom.eu are available to you around the

clock if you have any questions on the content in this manual, or if you

require any further support. The area 'Support' will help you with

many answers to frequently asked questions (FAQs). Furthermore, the

knowledgebase offers you a large reserve of information. The latest

drivers, firmware, utilities and documentation are constantly available

for download.

In addition, LANCOM Support is available. For telephone numbers

and contact addresses for LANCOM Support, please refer to the enc-

losed leaflet or the LANCOM Systems Web site.

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Preface

Information symbols

Very important instructions. Failure to observe these may result in damage.

Important instruction that should be observed.

Additional information that may be helpful but is not essential.

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Contents

Contents

1 Introduction 10

1.1 What is a wireless LAN? 10

1.1.1 Modes of operation of wireless LANs and access points

1.2 Wireless LANs in accordance with 802.11n 11

1.2.1 Advantages of 802.11n 12

1.2.2 Compatibility with other standards 13

1.2.3 The physical layer 13

1.2.4 The MAC layer 19

1.3 What can your LANCOM Wireless Router do? 21

2 Installation 25

2.1 Package contents 25

2.2 System requirements 26

2.2.1 Configuring the LANCOM devices 26

2.2.2 Operating access points in managed mode 26

2.3 Status displays and interfaces 26

2.3.1 Device connectors 33

2.4 Hardware installation 35

2.5 Software installation 37

2.5.1 Starting the software setup 37

2.5.2 Which software should I install? 38

3 Basic configuration 39

3.1 Details you will need 39

3.1.1 TCP/IP settings 39

3.1.2 Configuration protection 41

3.1.3 Settings for the wireless LAN 42

3.1.4 Settings for the ISDN Connection 43

3.1.5 Charge protection 43

3.2 Instructions for LANconfig 43

3.3 Instructions for WEBconfig 45

3.4 TCP/IP settings for PC workstations 49

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Contents

4 Setting up Internet access 50

4.1 The Internet Connection Wizard 52

4.1.1 Instructions for LANconfig 52

4.1.2 Instructions for WEBconfig 53

5 Connecting two networks 54

5.1 Which details are necessary? 55

5.1.1 General information 55

5.1.2 Settings for the TCP/IP router 57

5.1.3 Settings for NetBIOS routing 58

5.2 Instructions for LANconfig 59

5.3 1-Click-VPN for networks (site-to-site) 60

5.4 Instructions for WEBconfig 61

6 Providing dial-in access 62

6.1 Which details are necessary? 62

6.1.1 General information 63

6.1.2 Settings for TCP/IP 64

6.1.3 Settings for NetBIOS routing 65

6.2 Settings on the dial-in computer 65

6.2.1 Dialing-in via VPN 65

6.2.2 Dialing-in via ISDN 65

6.3 Instructions for LANconfig 66

6.4 1-Click-VPN for LANCOM Advanced VPN Client 66

6.5 Instructions for WEBconfig 68

7 Sending faxes with LANCAPI 69

7.1 Installation of the LANCOM CAPI Faxmodem 70

7.2 Installation of the MS Windows fax service 71

7.3 Sending a fax 72

7.3.1 Send a fax with any given office application 72

7.3.2 Send a fax with the MS Windows fax service 72

LANCOM 1811n Wireless – LANCOM 1821n Wireless

Contents

8 Security settings 74

8.1 Security in the wireless LAN 74

8.1.1 Encrypted data transfer 74

8.1.2 802.1x / EAP 77

8.1.3 LANCOM Enhanced Passphrase Security 77

8.1.4 Access control by MAC address 78

8.1.5 IPSec over WLAN 78

8.2 Tips for the proper treatment of keys and passphrases 78

8.3 Security settings Wizard 79

8.3.1 LANconfig Wizard 79

8.3.2 WEBconfig Wizard 80

8.4 The security checklist 80

9 Options and accessories 85

9.1 Optional AirLancer Extender antennas 85

9.1.1 Antenna diversity 86

9.1.2 Polarization diversity 86

9.1.3 MIMO 86

9.1.4 Installing the AirLancer Extender antennas 86

9.2 LANCOM Public Spot Option 88

10 Advice & assistance 90

10.1 No WAN connection can be established 90

10.2 Slow DSL transmission 90

10.3 Unwanted connections under Windows XP 91

10.4 Cable testing 91

11 Appendix 93

11.1 Performance data and specifications 93

11.2 Connector wiring 95

11.2.1 Ethernet interface 10/100Base-TX 95

11.2.2 ADSL interface 95

11.2.3 DSL interface 96

11.2.4 ISDN-S0interface 96

11.2.5 Configuration interface (outband) 97

11.3 CE declaration of conformity 97

12 Index 98

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