Manual Lancom IL-11 (page 101 of 102) (English)

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LANCOM Wireless L-11/IL-11

LANCOM

Wireless L-11/IL-II

LANCOM Wireless L-11/IL-11

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.

Trademarks

Windows

, Windows NT

and Microsoft

are registered trademarks of Microsoft, Corp.

The LANCOM Systems logo is a registered trademark of LANCOM Systems GmbH. All other names mentioned may be

trademarks or registered trademarks of their respective owners

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

LANCOM Systems GmbH

Adenauerstraße 20/B2

D-52146 Würselen

Germany

www.lancom.de

Würselen, July 2002

100324/01.08.02

LANCOM Wireless L-11/IL-11

Preface

Thank you for placing your trust in this LANCOM product.

Wireless networks from LANCOM Systems are economical alternatives or

additions to 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 can even be integrated into the ISDN network.

Documentation

The accompanying documentation comprises:

•

Manual

Hardware installation, description of the functions, operating modes and

sample configurations

•

CD containing electronic documentation

All product manuals, basic technical information (e.g. wireless networks,

general networking technology, TCP/IP etc.), workshop with detailed ex-

amples of applications, reference section for general information includ-

ing a complete description of the menus.

Our online services (www.LANCOM.de) are available to you around the clock

should you have any queries regarding the topics discussed in this manual or

require any further support. Current drivers, firmware, tools and manuals can

be downloaded at any time.

LANCOM Wireless L-11/IL-11

Contents

1 Introduction 9

1.1 The basic functions of a wireless network 10

1.2 Operating modes 10

1.3 What does the LANCOM Wireless offer? 13

2 Installation 21

2.1 Package contents 21

2.2 System requirements 21

2.3 Install TCP/IP on your workstation 22

2.3.1 Windows 95 and Windows 98 22

2.3.2 Windows NT 4.0 23

2.3.3 Windows 2000 25

2.4 Introducing the LANCOM Wireless 26

2.4.1 The front of the unit 26

2.4.2 The status of the ISDN connection (LANCOM Wireless IL-

11) 28

2.4.3 The bottom of the unit 30

2.5 How to connect the device 30

2.6 Software installation 30

2.7 Quickstart 31

2.7.1 The wizards 32

2.7.2 Basic settings 32

3 Configuration and management 37

3.1 Radio or wired: configuration approaches 37

3.2 Configuration using LANconfig 37

3.3 Configuration with WEBconfig 38

3.4 Configuration using Telnet 39

3.5 Configuration using a dial-up connection (LANCOM Wireless IL-

11 ) 39

3.5.1 This is what you need for remote configuration 39

3.5.2 This is how you prepare the remote configuration 40

3.5.3 The first remote connection using a Dial-up Networking

and LANconfig 40

3.5.4 The first remote connection using a PPP client and Telnet

3.5.5 Limiting remote configuration 41

LANCOM Wireless L-11/IL-11

3.6 Configuration using SNMP 42

3.7 New firmware with FirmSafe 43

3.7.1 This is how FirmSafe works 43

3.7.2 How to load new software 44

3.8 What's happening on the line? 45

3.9 LANmonitor 45

3.10 DSL firmware for LANCOM Wireless 46

4 Operating modes and functions 49

4.1 Establishing wireless connections 49

4.1.1 Considerations for setting up a wireless network 50

4.1.2 Ad hoc network (peer-to-peer) 50

4.1.3 Infrastructure network 51

4.1.4 Point-to-point network 52

4.1.5 Wireless Internet gateway via ISDN (LANCOM Wireless IL-

11) 52

4.1.6 Wireless Internet gateway via DSL 53

4.2 Security for your configuration 54

4.2.1 Security for the device 54

4.2.2 Security for your WLAN 56

4.2.3 Security for your LAN 57

4.3 ISDN routing (LANCOM Wireless IL-11) 62

4.3.1 ISDN name list 63

4.3.2 Interface settings 64

4.3.3 Router interface settings 65

4.3.4 Layer list 65

4.3.5 Call charge management 66

4.4 Automatic address administration with DHCP 67

4.4.1 The DHCP server 67

4.4.2 DHCP—'on', 'off' or 'auto'? 68

4.4.3 How are the addresses assigned? 68

4.4.4 Configuring the DHCP server 71

4.5 The least-cost router (LANCOM Wireless IL-11) 74

4.5.1 Function of the LANCOM Wireless least-cost router 74

4.5.2 Setting up the least-cost router 77

4.6 LANCOM CAPI Faxmodem (LANCOM Wireless IL-11) 79

4.6.1 Installation 79

4.6.2 Faxing with the LANCOM CAPI Faxmodem 80

LANCOM Wireless L-11/IL-11

4.7 Office communications and LANCAPI 80

4.7.1 LANCAPI interface settings 80

4.7.2 The LANCAPI (LANCOM Wireless IL-11) 81

4.8 Accounting 86

4.8.1 Configuring accounting 87

4.8.2 Reading the accounting data 87

5 Technical data 89

5.1 Power and ratings data 89

5.2 Radio frequency channels 91

6 Appendix 93

6.1 Declaration of conformity 93

6.2 General Warranty conditions 93

7 Index 95

LANCOM Wireless L-11/IL-11

Introduction

LANCOM Wireless L-11/IL-11

1 Introduction

The advantages of wireless LANs are obvious: Notebooks and PCs can be set

up where they are wanted—problems with missing ports or construction al-

terations are a thing of the past with wireless networking.

Network links in conferences or presentations, access to resources in adja-

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

options available with a wireless LAN.

The access point plays the central role in enabling these options in an exist-

ing wired network. All stations in the wireless network access the LAN via

the access point.

The present manual refers to both LANCOM Wireless L-11 and LANCOM

Wireless IL-11. All references to ISDN or the ISDN-router are exclusively re-

lied to LANCOM Wireless IL-11.

Your entire LAN is connected to the outside world via the integrated IP router

and the ISDN interface of LANCOM Wireless IL-11. Access to the Internet for

the entire LAN or office functions such as fax and answering machine at all

workstations are only some of the advantages offered by the ISDN router.

Notes on using wireless LAN devices

LANCOM Wireless LAN products can use up to 13 radio frequency channels

in a frequency band between 2400 MHz and 2483 MHz. The devices are

approved for operation in all EU countries and Switzerland. Use of the

devices is regulated throughout Europe by the 1999/5/EG guideline of the

European Parliament and Council Directive of 9 March 1999 regarding Radio

and Telecommunication Terminal Equipment (R&TTE) and the mutual

approval of their conformity. Please observe the approved frequencies for

individual countries as listed in the appendix.

LANCOM Systems is not responsible for disturbances or interference caused

by unauthorized modifications made to the devices. LANCOM Systems will

not be held liable especially for the consequences of connecting external

antennas or cables that are not explicitly designed for use with

LANCOM Wireless and AirLancer devices.

See the appendix for more information on CE conformity.

Introduction

LANCOM Wireless L-11/IL-11

1.1 The basic functions of a wireless network

This chapter introduces the basic functional principles of a wireless network.

The terms used will be explained and the structure and possible applications

of wireless networks introduced. Detailed information on this and other top-

ics can be found in the electronic documentation on the CD.

Wireless network

adapters WLAN

Wireless network adapters connect individual notebooks and PCs to a Local

Area Network (LAN). As the usual network cables have been replaced by a

radio link in this case, we also refer to this as a Wireless Local Area Network

(WLAN).

Access point

Furthermore, the access point forms the bridge between LAN and WLAN.

The LANCOM Wireless access point also can function as an Internet router

or a wireless bridge between two ethernet LANs. It has a slot for a wireless

network adapter (AirLancer MC-11) as well as a normal Ethernet connection

on the other side to exchange data between the two networks.

Radio cell

The maximum area in which wireless network adapters in mobile stations

and the access point can reach each other and exchange data is known as a

radio cell.

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

less network: Access to files, servers, printers etc. is possible as is the inte-

gration of the mobile stations into an internal company e-mail system.

1.2 Operating modes

The following operating modes are available using LANCOM Systems wire-

less network adapters and access points:

• Ad hoc network (peer-to-peer)

• Infrastructure network

• Wireless bridge

• Wireless LAN + ISDN gateway (LANCOM Wireless IL-11)

• Wireless LAN + DSL gateway

Direct PC

connection

Use the wireless network cards to link two or more computers directly. All

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

tional hardware.

Introduction

LANCOM Wireless L-11/IL-11

Ad hoc network

This application is generally called a peer-to-peer network. In the language

of wireless networking, it is known as an ad hoc network.

Infrastructure

network

All computers with wireless network cards are able to access a wired net-

work via an access point. The access point acts as the connection between

the LAN and the WLAN and it also forms the switching center for data traffic

within the WLANs.

A wireless network with a access point is also referred to as an infrastructure

network.

This network type is ideally suited as an addition to existing LANs. The infra-

structure network is the ideal solution for expansion of a LAN in areas where

wiring is not possible or not economical.

Roaming

Multiple access points can be used if the range of a cell is not sufficient to

link all mobile stations. This makes it possible to switch from one wireless

cell to another without interrupting the connection to the network.

Ad hoc network

Infrastructure network

Introduction

LANCOM Wireless L-11/IL-11

Radio cells can also overlap to ensure good coverage. Different channels (up

to 13 channels are available) can be selected to prevent interference

between the cells.

WLAN and

ISDN/DSL gateway

The LANCOM Wireless IL-11 access point offers a special supplementary

function. The access point connects both the wireless network and the wired

or DSL network simultaneously to the ISDN network via the ISDN interface.

This enables additional applications such as access to the Internet for all

computers in the LAN and WLAN together with all the functions of an IP

router.

Introduction

LANCOM Wireless L-11/IL-11

1.3 What does the LANCOM Wireless offer?

The following is an outline of the principal features of the device giving you

a quick overview of its capabilities.

Easy installation

• Connect the LANCOM Wireless to the power supply.

•

Establish a link to the LAN.

•

Connect to a DSL port.

•

Plug in the ISDN cable.

(LANCOM Wireless IL-11)

•

Switch it on.

• Go!

LAN connection

Access points for wireless networks by LANCOM Systems work in Ethernet

environments. Use the 10Base-T connection and a hub or switch to connect

the LANCOM Wireless to a 10 Mbit LAN or to a DSL modem.

WAN connection

The LANCOM Wireless IL-11 is connected to the S

interface(s) of an ISDN

basic rate interface in point-to-multipoint configuration (multi-device termi-

nal) or in point-to-point configuration (system terminal). The router automat-

ically detects your port type and the D-channel protocol being used. Switched

connections using DSS1 or 1TR6 can also be used, as can leased-line connec-

tions.

Operation with an ISDN leased line is not included in the standard delivery

scope of the router. The leased line option can be enabled by entering a code

that has to be purchased seperately.

DSL connection

With special DSL firmware (on CD-ROM), you can connect your LANCOM

Wireless to a DSL modem (such as the T-DSL network offered by Deutsche

Telekom). Instead of connecting to the Ethernet, you can have quick access

to the Internet. This procedure can be switched in both directions by using

the corresponding firmware.

Introduction

LANCOM Wireless L-11/IL-11

Configuration

Setting up and configuring the devices to your specific needs is made quick

and easy in Windows operating systems by the configuration tool supplied,

LANconfig.

The management tool WEBconfig is just as easy to use. It allows you to

access the configuration of the LANCOM Wireless access point or even load

new firmware using any HTML browser. Furthermore it is possible to access

device configuration via SNMP, Telnet and TFTP.

For access to the device, the TCP/IP protocol has to be installed on the sta-

tions. The LANCOM Wireless access point can then be configured for a LAN,

WLAN or WAN connection. The unit can be maintained remotely via ISDN—

even before being configured after delivery (LANCOM Wireless IL-11).

Access to the device is possible from a WAN (via ISDN), WLAN or LAN. TFTP

is supported along with SNMP if configuring from the LAN or WLAN.

The integrated setup wizards from LANconfig and WEBconfig help you get

the unit operating in a few steps.

Software update

Your device has a flash ROM memory to ensure that its software remains

state of the art. This allows new firmware to be loaded onto the device with-

out the need to open it up.

The current version is always available to you on our online media and can be

loaded via the LAN, the WLAN or the WAN (ISDN).

FirmSafe

There is no risk involved with loading the new firmware: The FirmSafe func-

tion enables two firmware files to be managed on one device. If the new

firmware version does not function as desired after the upload you can simply

revert to the previous version.

If an error occurs during the upload (e.g. a transmission error) the functioning

previous version is automatically reactivated.

Intruder protection

Along with password protection and call number recognition (CLIP), the router

offers protection against unauthorized access to the company network by

means of a callback function which only permits a connection to be estab-

lished to previously defined ISDN telephone numbers only (LANCOM Wire-

Introduction

LANCOM Wireless L-11/IL-11

less IL-11). Authentication mechanisms in PPP, firewall filters and IP

masquerading complete the security concept. Furthermore, login barring pre-

vents any “brute force attacks” and denies access to the router after a con-

figurable number of login attempts using an incorrect password.

Wireless and secure with WEP

The WEP (Wired Equivalent Privacy) encryption method attaches a 40-bit or

128-bit key to the wireless data. The data encryption and authentication of

the stations makes it as good as impossible for the data in transit to be inter-

cepted. This ensures a considerably higher level of data security in wireless

network operation. Additionally, station filters based on MAC addresses

make it possible to allow or deny individual stations access to the access

point.

The basic WEP encryption meanwhile is said to be attacable (which requires

a great deal of energy). Therefore WEPplus has been developed which avoids

the weaknesses of WEP encryption and increases the security.

Charge monitoring

(LANCOM Wireless IL-11)

Subscribing to “Advice of charge during connection” on the ISDN network

(AOCD) allows you to set the charge units available for a specified period for

the ISDN connection. This puts you in constant control of your phone bill.

If charge information is not available from your ISDN connection, you can also

limit the active ISDN connect time for a specified period. The router will not

permit the active establishment of connections once this time has elapsed.

Least-cost routing

(LANCOM Wireless IL-11)

Even if there is a large selection of telecommunications service providers you

can always use the cheapest ISDN lines using the least-cost router.

Automatic time check

(LANCOM Wireless IL-11)

In order to generate sound statistics and to select the correct connection

paths using the least cost router, the device always must have the exact time.

It can read the time from the ISDN network itself. The router's internal time

is always compared to ISDN time either each time a connection is estab-

lished or each time the device is switched on. Of course, the time can also be

set manually.

Introduction

LANCOM Wireless L-11/IL-11

Roaming

The roaming feature lets you construct bigger wireless networks using any

number of access points. When stations switch from one wireless cell to

another while connected, they are automatically logged off of the previous

access point and logged onto the next.

Installation

LANCOM Wireless L-11/IL-11

2 Installation

This section will help you to connect as quickly as possible. First we will

describe the contents of the package and introduce the device itself. After

that we will explain how to connect the unit and put it to use quickly.

The following information is intended for experienced users familiar with

hardware and network configuration.

2.1 Package contents

Please ensure that the delivery is complete before beginning with the instal-

lation. The package should include the following components:

• LANCOM Wireless IL-11 or LANCOM Wireless L-11

• AirLancer wireless network adapter with integrated antenna (already in

the access point)

• Power adapter

• LAN connector cable

(also suitable when connecting to a DSL modem)

• ISDN connection cable (LANCOM Wireless IL-11)

• Documentation

• CD containing LANconfig, other software and electronic documentation

If anything should be missing, please contact your dealer.

2.2 System requirements

PCs that are to communicate with a LANCOM Wireless access point have to

meet the following minimum requirements:

• The TCP/IP protocol must be installed.

• A web browser must be installed (for HTML configuration).

• An AirLancer or other ethernet card has to be installed.

Several programs and drivers, such as LANconfig and LANCAPI require a

Windows operating system.

Installation

LANCOM Wireless L-11/IL-11

2.3 Install TCP/IP on your workstation

To establish a connection to a LANCOM Wireless access point for the first

time, the TCP/IP protocol has to be set up. The following describes how to

install this protocol on various operating systems.

2.3.1 Windows 95 and Windows 98

Using Windows 95 and Windows 98 as examples, this section will show

what needs to be done, if it is not already done for you, to ensure smooth

communication between computers in a TCP/IP network with the router con-

nected to the workstations.

• Installing TCP/IP

To install TCP/IP, click Start / Settings / Control Panel / Network /

Add / Protocol. Select the manufacturer 'Microsoft' and the 'TCP/IP'

network protocol.

• Allocate IP addresses (using DHCP)

If you are going to use the router as a DHCP server, set the workstations

to obtain IP addresses automatically: Start / Settings / Control panel /

Network / TCP/IP / Properties / IP address / Automatically receive

IP address. Also, delete any existing entries for DNS servers and gate-

ways (found under the 'Gateway' and 'DNS Configuration' tabs). When

the computer is restarted, it then searches for a DHCP server on the net-

work and lets it assign an IP address to it.

• Setting fixed IP addresses (not using DHCP)

If you are not going to use a DHCP server on your network, assign the

workstations fixed IP addresses: Start / Settings / Control panel / Net-

work / TCP/IP / Properties / IP address / Determine IP address.

Assign unique IP addresses, for example taken from a reserved range of

addresses. For example, the workstations can be assigned addressed

from '10.1.1.2' to '10.1.1.253', the router can be given '10.1.1.1' and all

can have the subnet mask of '255.255.255.0'. To test whether or not a

specific IP address, such as '10.1.1.1', is free, enter

ping 10.1.1.1

in a DOS session If you do not receive a response, the address is most

likely free.

• Entering the gateway and DNS server (not necessary when using DHCP)

On the workstation computers, specify the address of the local network

router as the gateway and as the Domain Name Server (DNS server):

Installation

LANCOM Wireless L-11/IL-11

Start / Settings / Control panel / Network / TCP/IP / Properties /

Gateway and DNS configuration. Also enter a host name on the DNS

configuration page. In doing so, use the name of the PC, which ideally

matches the user's name, to maintain a certain amount of consistency.

• Checking the IP configuration

Under Windows 95 and Windows 98, you can view the current IP config-

uration of your computer with by using Start / Run / winipcfg. Among

other information, this shows you which IP address was assigned to the

computer by the DHCP server and which addresses have been specified

for DNS servers and the gateway.

2.3.2 Windows NT 4.0

Using Windows NT 4.0 as an example, this section will show what needs to

be done, if it is not already done for you, to ensure smooth communication

between computers in a TCP/IP network with the router connected to the

workstations.

• Installing TCP/IP

To install TCP/IP, click Start / Settings / Control Panel / Network /

Protocols / Add. Select the 'TCP/IP protocol' network protocol.

• Allocate IP addresses (using DHCP)

If you are going to use the router as a DHCP server, set the workstations

to obtain IP addresses automatically. To do so, select Yes when com-

pleting the network protocol installation.

Windows then copies the required files and, when finished, requests you

to reboot.

• Setting fixed IP addresses (not using DHCP)

If you are not going to use a DHCP server on your network, assign the

workstations fixed IP addresses: Start / Settings / Control Panel /

Network / Protocols / Properties. This tab also lets you set the stan-

dard gateway.

Installation

LANCOM Wireless L-11/IL-11

Assign unique IP addresses, for example taken from a reserved range of

addresses. For example, the workstations can be assigned addressed

from '10.1.1.2' to '10.1.1.253', the router can be given '10.1.1.1' and all

can have the subnet mask of '255.255.255.0'. To test whether or not a

specific IP address, such as '10.1.1.1', is free, enter

ping 10.1.1.1

in a DOS session. If you do not receive a response, the address is most

likely free.

• Entering the DNS server (not necessary when using DHCP)

On the workstation computers, specify the address of the local network

router as the Domain Name Server (DNS server) on the 'DNS' tab. Also

enter a host name on the DNS configuration page. In doing so, use the

name of the PC, which ideally matches the user's name, to maintain a cer-

tain amount of consistency.

Installation

LANCOM Wireless L-11/IL-11

• Checking the IP configuration

Under Windows NT 4.0 you can query the current IP configuration of your

computer with Start / Run / ipconfig. This shows you which IP address

was assigned to the computer by the DHCP server and which addresses

have been specified for the gateway (not for the DNS server).

2.3.3 Windows 2000

With Windows 2000, helpful hardware setup wizards provide support when

you install the new hardware. If your network card is not detected during sys-

tem startup, launch the hardware wizard by selecting

Start / Settings / Control Panel / Add/Remove Hardware.

a Select to search for new hardware and then select the 'Add a new device'

from the list that follows and click Next >.

b The search should detect the network card. Click again Next >. The sys-

tem then configures the new hardware and a LAN connection.

c To verify the new LAN connection, open its window by selecting

Start / Settings / Network and Dialup Connections

From there, click the connection with the right mouse button and open its

properties.

Installation

LANCOM Wireless L-11/IL-11

d The dialog that appears contains a list box containing the installed net-

work components. TCP/IP should be listed in any case.

e Select its entry and click the Properties... button.

This opens a dialog where you can define all of the properties for this network

protocol. The procedures for setting address, DHCP, gateway and DNS are

the same here as in Windows 98.

2.4 Introducing the LANCOM Wireless

This section introduces the unit's hardware. It covers the unit's display ele-

ments and connection options.

2.4.1 The front of the unit

LEDs

You will find a number of LEDs as display elements on the front panel.

1 This LED shows the send/receive status of the card:

• Off—no wireless activity

• Blinking—wireless data being sent/received

Installation

LANCOM Wireless L-11/IL-11

2 The second LED indicates the card's operating mode:

• Lit green—standard mode

• Blinking green—the card is in energy-saving mode

3 The 'Power/Msg' LED on the access point lights up briefly when the

power is switched on. After the self-test, either an error is output by a

flashing light code or the device starts and the LED remains lit.

4 The 'S

Status' LED on the access point shows the activity on the D-chan-

nel (LANCOM Wireless IL-11 only).

5 The 'WAN Channel-1' LED on the access point shows the activity on the

first B-channel on the ISDN port (LANCOM Wireless IL-11 only).

6 The 'WAN Channel-2' LED on the access point shows the activity on the

second B-channel on the ISDN port (LANCOM Wireless IL-11 only).

7 The 'LAN Tx/Rx' LED on the access point indicates activity on the wireless

network and the LAN.

8 The LED 'LAN link' on the access point indicates data activity in the Ether-

net network.

9 The Reset button is recessed in the case and can only be reached with a

pointed object such as a paper clip. Press the Reset button until all of the

LEDs light up to reset the unit to its factory defaults.

off Device off

green 1 x short Boot procedure (test and load) started

green flashing Display of a boot error (flashing light code)

green Device ready for use

Installation

LANCOM Wireless L-11/IL-11

2.4.3 The bottom of the unit

Now turn the whole thing upside down and take a look at the bottom. There

you'll find:

1 Connection for power supply unit

2 10Base-T network connection

3 ISDN S

port (LANCOM Wireless IL-11)

2.5 How to connect the device

a Connect your LANCOM Wireless to the LAN. Plug the network cable (sup-

plied) into the 10Base-T terminal of the device and into a free network

connector on your local network (or into a free socket on a hub in your

LAN). The cable for the LAN connector is labeled with a colored bend-

proof protector.

b Connect your LANCOM Wireless IL-11 to the ISDN network. To do so,

connect the supplied ISDN line connection cable to the ISDN/S

terminal

on the unit and to an ISDN/S

multi-device terminal or system terminal

(point-to-multipoint or point-to-point configuration).

c Connect the AC adapter to the device and switch it on. After a short

device self-test the 'Power/Msg' LED will be permanently lit. The 'LAN

Link' LED indicates that your router is correctly connected to the LAN.

2.6 Software installation

The LANconfig configuration software for Windows operating systems

enables you to set up your router easily and conveniently for the desired

application. To use it, first install LANtools from the CD onto your system.

쐃쐇쐋

LAN S

Configuration and management

LANCOM Wireless L-11/IL-11

http://<LANCOM IP address>

A LANCOM Wireless that has not be reconfigured or has been reset will even

respond to all IP addresses. A prerequisite is that the last set of numbers in

the IP address is '254' (e.g. http://10.0.0.254 and http://192.168.0.254).

Extensive, context-sensitive documentation for each WEBconfig page and

field is available at all times in WEBconfig by selecting the 'Help (Reference

Manual)' link.

3.4 Configuration using Telnet

Start up the configuration (e.g. from a DOS box) using Telnet with the com-

mand:

C:\>Telnet 10.0.0.1

Telnet will then establish a connection with the device using the IP address.

After entering the password (if you have set one to protect the configuration),

all commands are available from the 'Configuration commands' section.

3.5 Configuration using a dial-up connection (LAN-

COM Wireless IL-11 )

Configuring routers at remote sites is particularly easy using the remote con-

figuration method via a dial-up connection. The device is accessible by the

administrator immediately without any settings being made after it is

switched on and connected to the WAN interface. This means that you save

a lot of time and costs when connecting other networks to your network

because you do not have to travel to the other network or instruct the staff

on-site on configuring the router

You can also reserve a special calling number for remote configuration. Then

the support technician can always access the router even if it is really no

longer accessible due to incorrect settings.

3.5.1 This is what you need for remote configuration

• A computer with a PPP client, e.g. Windows Dial-up Networking

• A program for inband configuration, e.g. LANconfig or Telnet

Configuration and management

LANCOM Wireless L-11/IL-11

3.5.2 This is how you prepare the remote configuration

a Attach the router to the power supply.

b Connect the device to a WAN interface.

3.5.3 The first remote connection using a Dial-up Networking

and LANconfig

c In the LANconfig program select Device / New, enable 'Dial-up connec-

tion' as the connection type and enter the calling number of the WAN

interface to which the LANCOM Wireless IL-11 is connected. If you wish,

you can also enter the time period after which an idle connection is to be

disconnected automatically.

d LANconfig now automatically generates a new entry under Dial-up Net-

working. Select a device that supports PPP (e.g. the NDIS-WAN driver

included with the LANCAPI) for the connection and press OK to confirm.

e Then the LANconfig program will display a new device with the name

'Unknown' and the dial-up call number as the address in the device list.

Once the entry appears in the device list the Dial-up Networking connection

is broken.

f You can configure the device remotely just like all other devices. LAN-

config establishes a dial-up connection enabling you to select a configu-

ration.

3.5.4 The first remote connection using a PPP client and Tel-

net

a Establish a connection to the LANCOM Wireless IL-11 with your PPP cli-

ent using the following details:

• User name 'ADMIN'

• Password as set on the LANCOM Wireless IL-11, factory default set-

ting is no password

• An IP address for the connection, only if required

b Open a Telnet session to the LANCOM Wireless IL-11. Use the following

IP address for this purpose:

Configuration and management

LANCOM Wireless L-11/IL-11

• '172.17.17.18', if you have not defined an IP address for the PPP cli-

ent. The LANCOM Wireless IL-11 automatically uses this address if

no other address has been defined. The calling PC then responds to

the IP address '172.17.17.17'.

• Raise the IP address of the PC by one, if you have defined an address.

For example: If you have defined the IP address '10.0.200.123' for the

PPP client, the LANCOM Wireless IL-11 will respond to

'10.0.200.124'. Exception: If the digits '254' are at the end of the IP

address, the router responds to 'x.x.x.1'.

c You can configure the LANCOM Wireless IL-11 remotely just like all other

devices.

3.5.5 Limiting remote configuration

The PPP connection of any other remote site to the router, of course, will only

succeed if the device answers every call with the corresponding PPP settings.

This is the case using the factory default settings because the default proto-

col (default layer) is set to PPP.

You may, however, want to change the default layer for LAN-to-LAN connec-

tions, for example, to a different protocol after the first configuration run.

Then the device will no longer take calls on the dial-up connection using the

PPP settings. The solution to this is to agree upon a special calling number for

configuration access. If the device receives a call on this number, it will

always use PPP, regardless of any other settings made on the router. Only a

specific user name which is automatically entered by the LANconfig program

during call establishment will be accepted during the PPP negotiations.

a Switch to the 'Security' tab in the 'Management' configuration section.

b In the 'Configuration access' field, choose whether the configuration is

fully accessible, read-only or not accessible from remote networks.

Alternatively, enter the following command during a Telnet or terminal

connection:

set/setup/config-module/wan-config

[on][read][off]

If you wish to block access to the router from the WAN entirely, set configu-

ration access from remote networks to 'denied'.

Configuration and management

LANCOM Wireless L-11/IL-11

c Enter a calling number of your connector as the calling number in the

'configuration access' area, which is not used for other purposes.

Alternatively, enter the following command:

set /setup/config-module/Farconfig 123456

d You can protect the configuration of the device by assigning a password.

Alternatively, enter the following command during a Telnet or terminal

connection:

passwd

You will then be prompted to enter and confirm a new password.

3.6 Configuration using SNMP

The Simple Network Management Protocol (SNMP V.1 as specified in RFC

1157) allows monitoring and configuration of the devices on a network from

a single central instance.

Detailed information on the configuration of LANCOM Wireless devices with

SNMP can be found in the electronic documentation on the CD.

Configuration and management

LANCOM Wireless L-11/IL-11

TFTP

With TFTP you can use the writeflash command to install new firmware. To

transmit a new firmware version to a device with the IP address

194.162.200.17, you would enter the following command under Windows NT

for example:

tftp -i 194.162.200.17 put lc_wl1iu.200 writeflash

This command sends the corresponding file to the input IP address using the

writeflash command. Binary file transfer must be set for TFTP. However,

many systems have the ASCII format preset. This example for Windows NT

shows you how to achieve this by using the '-i' parameter.

The device is booted up following a successful firmware upload and this acti-

vates the new firmware switch directly. If an error occurs during the upload

(write error in the flash ROM, TFTP transmission error or similar) FirmSafe

activates the previous firmware. The configuration remains in operation.

With TFTP, other configuration commands can be performed too. The syntax

is best demonstrated with the following examples:

• tftp 10.0.0.1 get readconfig file1: Reads the configuration from the device

with the address 10.0.0.1 and saves it as file1 in the current directory.

• tftp 10.0.0.1 put file1 writeconfig: Writes the configuration from file1 to

the device with the address 10.0.0.1.

• tftp 10.0.0.1 get dir/status/verb file2: Saves the current connection infor-

mation in file2.

3.8 What's happening on the line?

After the basic setup of the devices, further important information can be

gained with regard to the parameters still to be modified, especially by

observing the data flow on the various ports of the router.

In addition to the device statistics that can be read out during a telnet or ter-

minal session or with WEBconfig, a variety of other options are also avail-

able.

3.9 LANmonitor

The LANmonitor includes a monitoring tool with which you can view the most

important information on the status of your router on your monitor at any time

Index

LANCOM Wireless L-11/IL-11

Telnet ..................................................39

time

.............................................. 74, 78

Time check

..........................................15

time in the ISDN

.................................78

time of day

..........................................75

Transfer costs

.....................................18

Transmission rates

.............................16

Troubleshooting

..................................46

• U

Upload

.......................................... 14, 43

User name

.................................... 41, 61

• W

WAN Chan1

........................................28

WAN Chan2

........................................28

WAN connection

................................13

Warranty conditions

...........................93

WEP

....................................................56

Windows networks

.............................18

Winipcfg

.............................................33

winipcfg

..............................................33

Wireless Internet Gateway

......... 52, 53

Wireless LAN

......................................10

Wireless network

...............................10

Wireless network adapter

..................10

WLAN

.................................................10

WWW

.................................................61

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