LANCOM Wireless DSL Series –
LANCOM Wireless ADSL Series
© 2005 LANCOM Systems GmbH, Wuerselen (Germany). All rights reserved.
0320/010
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 included with this product is subject to written permission by LANCOM Systems. We reserve the right to make any alterations that arise as the result of technical development.
Trad ema rks
®
Windows
, Windows XP® and Microsoft® are registered trademarks of Microsoft, Corp.
The LANCOM Systems logo and the name LANCOM are registered trademarks of LANCOM Systems GmbH. All other names
mentioned may be trademarks or registered trademarks of their respective owners.
Subject to change without notice. No liability for technical errors or omissions.
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit http://www.openssl.org/
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Wuerselen
Germany
www.lancom.de
Wuerselen, January 2005
.
11
5
Preface
LANCOM Wireless DSL – LANCOM Wireless ADSL
Preface
Thank you for placing your trust in this
With the LANCOM Wireless DSL 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. With this router you can simply
and comfortably connect individual PCs or whole local networks to the highspeed Internet.
As a base station, the LANCOM Wireless DSL provides numerous central functions and services to the participants of wireless networks and it convinces by
a simple configuration and a reliable continuous operation. With high-effective technologies, it ensures data security within the whole wireless network.
Security settings
For a carefree use of your device, we recommend to carry out all security settings (e.g. Firewall, encryption, access protection, charge lock), which are not
already activated at the time of purchase of your device. The LANconfig wizard
’Check Security Settings’ will support you accomplishing this. Further information regarding this topic can be found in chapter ’Security settings’
→page 69.
We ask you additionally to inform you about technical developments and
actual hints to your product on our Web page www.lancom.de
load new software versions if necessary.
User manual and reference manual
The documentation of your device consists of two parts: the user manual and
the reference manual.
You are now reading the user manual. It contains all information you need to
start your LANCOM Wireless DSL. It also contains the most important technical specification for the device.
The reference manual can be found on the CD as an Acrobat (PDF) document.
It is designed as a supplement to the user manual and goes into detail on topics that apply to a variety of devices. These include for example:
Systems design of the LCOS operating system
Configuration
Management
Diagnosis
LANCOM
product.
, and to down-
EN
3
LANCOM Wireless DSL – LANCOM Wireless ADSL
Preface
Security
Routing and WAN functions
Firewall
Quality of Service (QoS)
Virtual Private Networks (VPN)
Virtual Local Networks (VLAN)
LANCAPI
EN
Further server services (DHCP, DNS, charge management)
Model variants
This user manual applies to the following models of the LANCOM Wireless DSL
series:
LANCOM 1511 Wireless DSL
LANCOM 1521 Wireless ADSL
LANCOM 1811 Wireless DSL
LANCOM 1821 Wireless ADSL
Model
restriction
The section of the documentation that refer only to a range of models are
marked either in the corresponding text itself or with appropriate comments
placed beside the text.
In the other parts of the documentation, all described models have been classified under the general term LANCOM Wireless DSL.
This documentation was compiled …
...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.
In case you encounter any errors, or just want to issue critics or enhancements, please do not hesitate to send an email directly to:
info@lancom.de
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. In addition, support from
LANCOM Systems is also available to you. Telephone numbers and
4
LANCOM Wireless DSL – LANCOM Wireless ADSL
contact information for LANCOM Systems support can be found on a
separate insert, or at the LANCOM Systems website.
Notes symbols
Very important instructions. If not followed, damage may result.
Preface
Important instruction should be followed.
Additional instructions which can be helpful, but are not
required.
Special formatting in body text
Bold Menu commands, command buttons, or text boxes
Code
Inputs and outputs for the display mode
<Value> Placeholder for a specific value
EN
5
LANCOM Wireless DSL – LANCOM Wireless ADSL
Contents
Contents
1 Introduction 9
1.1 How does ADSL work? 9
1.2 Which use does VPN offer? 12
1.3 What does a router do? 15
1.3.1 Bridgehead to the WAN 15
EN
2 Installation 22
1.3.2 Areas of deployment for routers 16
1.4 What is a Wireless LAN? 17
1.4.1 Which hardware to use? 17
1.4.2 Operation modes of Wireless LANs and base stations
1.5 What can your LANCOM Wireless DSL do? 18
2.1 Package contents 22
2.2 System preconditions 22
2.3 Introducing LANCOM Wireless DSL 23
2.3.1 Status displays 23
2.3.2 The back of the unit 29
2.4 Hardware installation 30
2.5 Software installation 32
2.5.1 Starting LANCOM setup 32
2.5.2 Which software should you install? 33
18
3 Basic configuration 34
3.1 Which information is necessary? 34
3.1.1 TCP/IP settings 34
3.1.2 Configuration protection 36
3.1.3 Settings for the Wireless LAN 36
3.1.4 Settings for the DSL connection 37
3.1.5 Settings for the ISDN connection 37
3.1.6 Connect charge protection 38
3.2 Instructions for LANconfig 38
3.3 Instructions for WEBconfig 40
3.4 TCP/IP settings to workstation PCs 44
6
LANCOM Wireless DSL – LANCOM Wireless ADSL
Contents
4 Setting up Internet access 46
4.1 Instructions for LANconfig 48
4.2 Instructions for WEBconfig 48
5 Linking two networks 49
5.1 What information is necessary? 50
5.1.1 General information 50
5.1.2 Settings for the TCP/IP router 52
5.1.3 Settings for the IPX router 53
5.1.4 Settings for NetBIOS routing 54
5.2 Instructions for LANconfig 55
5.3 Instructions for WEBconfig 55
6 Providing dial-up access 57
6.1 Which information is required? 57
6.1.1 General information 58
6.1.2 Settings for TCP/IP 59
6.1.3 Settings for IPX 60
6.1.4 Settings for NetBIOS routing 60
6.2 Settings for the dial-in computer 61
6.2.1 Dial-up via VPN 61
6.2.2 Dial-up via ISDN 62
6.3 Instructions for LANconfig 62
6.4 Instructions for WEBconfig 63
EN
7 Sending faxes with LANCAPI 64
7.1 Installation of the LANCOM CAPI fax modem 65
7.2 Installation of the MS Windows fax service 66
7.3 Sending a fax 67
7.3.1 Send a fax with any given office application 67
7.3.2 Send a fax with the MS Windows fax service 67
8 Security settings 69
8.1 Security for the Wireless LAN 69
8.1.1 Closed network 69
8.1.2 Access control via MAC address 70
8.1.3 LANCOM Enhanced Passphrase Security 70
8.1.4 Encryption of the data transfer 70
7
LANCOM Wireless DSL – LANCOM Wireless ADSL
Contents
8.1.5 802.1x / EAP 72
8.1.6 IPSec over WLAN 73
8.1.7 Tips for handling keys 73
8.2 The security settings wizard 73
8.2.1 Wizard for LANconfig 74
8.2.2 Wizard for WEBconfig 75
8.3 The firewall wizard 75
EN
8.3.1 Wizard for LANconfig 75
8.3.2 Configuration under WEBconfig 76
8.4 The security checklist 76
9 Options and accessories 80
9.1 Optional AirLancer Extender antennas 80
9.2 LANCOM Public Spot Option 81
10 Troubleshooting 83
10.1 No DSL connection is established 83
10.2 DSL data transfer is slow 83
10.3 Unwanted connections under Windows XP 84
10.4 Cable testing 84
11 Appendix 86
11.1 Performance data and specifications 86
11.2 Radio channels 89
11.2.1 Radio channels in the 2,4 GHz frequency band 89
11.2.2 Radio channels in the 5 GHz frequency band 90
11.2.3 Radio channels and frequency ranges for Indoor
and Outdoor operating 92
11.3 Contact assignment 95
11.3.1 ADSL interface 95
11.3.2 DSL interface 95
11.3.3 ISDN-S
interface 96
0
11.3.4 Ethernet interfaces 10/100Base-T 96
11.3.5 Configuration interface (Outband) 97
11.4 CE declaration of conformity 97
12 Index 98
8
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
1Introduction
DSL technology permits high-speed Internet access via conventional telephone lines. DSL features an outstanding price/performance ratio and is very
popular among private users as well as small and mid-sized businesses. All of
the devices of the LANCOM Wireless DSL series are fully-featured routers that
therefore also can be used for providing Internet access to a complete local
network (LAN).
The models of the LANCOM Wireless DSL series offer each a DSL or ADSL connector and also an ISDN connector. The ISDN line can be used as back-up for
the DSL connection, for remote management of the router or as basis for the
office communication via LANCAPI.
In addition to their function as routers between LAN and the Internet, all
models of the LANCOM Wireless DSL series operate also as base stations for
wireless networks. With the base station you link wireless PCs and notebooks
to a network, connect these devices to the existing wired LAN and enable also
the wireless devices to access the Internet.
EN
1.1 How does ADSL work?
For LANCOM 1521
Wireless ADSL and
LANCOM 1821
Wireless ADSL only
WLAN
LANCOM Wireless DSL
LAN
Internet
telephone
splitter
phone line
DSL modem
Since the late 1980s, scientists have been working on the idea of using conventional telephone lines for video and multimedia applications.
High speed via standard telephone lines
Their approach was based on the use of telephone lines only for the distance
between the subscriber and the next local exchange. From the switching
center, the data is then transferred via high-speed connections to the desired
destination or target network (i.e. the Internet). This minimization of the tel-
9
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
ephone line distance used permits considerably higher transfer rates than
would be possible when relying solely on the telephone network.
EN
LAN
ADSL connection via
telephone line
LANCOM Wireless DSL
Internet
Local exchange (central office)
All DSL technologies, of which ADSL is the most common, are based on this
concept. Thanks to their high transfer speeds, DSL connections are well-suited
for Internet access.
Ideal for Internet surfers
The ADSL version of DSL was designed for applications in which the user
receives high volumes of data but only transmits relatively small volumes. A
typical example for this would be access to the world wide web (www). Only
a few commands (mouse clicks) are required to initiate the download of very
large volumes of data such as graphics, texts, audio or video files. The user
typically only sends very small amounts of data across the Internet connection.
With an ADSL connection, a user can download at up to 8 Mbps (“downstream”) and upload at up to 800 Kbps (“upstream”). These maximum rates
can be reduced as required by the ADSL provider. A typical access plan might
specify, for example, 768 Kbps download and 128 Kbps upload speed.
10
All services via a single cable—thanks to the splitter
With ADSL, all traditional telephony applications (telephone, fax, answering
machine, PBX) can still be used without restrictions. So-called splitters make
this possible. Splitters are devices that separate the telephone line's “voice
frequencies” from the “data frequencies” and ensure that the signals are forwarded to the appropriate networks. Voice signals are passed on to the existing telephone network, while data signals are forwarded to their destinations
(i.e. Internet providers) via high-bandwidth network connections.
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
A splitter is also used at the subscriber end to permit ADSL modems/routers
and conventional telephone equipment to be used at the same time.
Telephone
network
Internet
Switching node
DSL access
multiplexer
ADSL provider
Splitter
Router with integrated
Splitter
ADSL modem
Tel ep hon e
Subscriber
In some models (like in the picture above) the ADSL modem is integrated
directly in the router (e.g. LANCOM 1521 Wireless ADSL and LANCOM 1821
Wireless ADSL). Other models like LANCOM 1511 Wireless DSL or LANCOM
1811 Wireless DSL are connected to the splitter using a separate ADSL
modem.
Telephone
network
Internet
Switching node
DSL access
multiplexer
ADSL provider
Splitter
Splitter
ADSL
modem
Tel ep hon e
Router
Subscriber
EN
The models LANCOM 1511 Wireless DSL and LANCOM 1811 Wireless
DSL can also utilize other broadband connections (e.g. cable modem)
that offer a 10/100Base-Tx-Ethernet connector over PPPoE, PPTP or
plain Ethernet (with or without DHCP).
The models LANCOM 1521 Wireless ADSL and LANCOM 1821
Wireless ADSL can use this option, if the first LAN ports is configured
as WAN interface.
11
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
ADSL-over- ISDN or ADSL-over-POTS?
ADSL can operate over modern ISDN telephone service as well as conventional analog service (POTS – Plain Old Telephone Service).
There are, however, different technical specifications for the two telephone
systems. For this reason, devices in the LANCOM Wireless DSL series are
offered in two different versions: A version for ADSL-over-POTS and a version
for ADSL-over-ISDN.
EN
You can determine which telephone system a device supports by looking at
the model description on the bottom of the device. The label containing the
device name also contains an additional code which stands for the telephone
system the device supports:
Code Supported telephone system
'Annex A' ADSL-over-POTS
'Annex B' ADSL-over- ISDN
An 'Annex A' type LANCOM Wireless DSL can only be used with ADSL-overPOTS service. Similarly, an 'Annex B' device can only be used with ADSL- overISDN service. Retrofitting a device to function with a different telephone system is not possible.
ADSL-over-ISDN connections also exist that do not operate in conjunction
with ISDN, but which use a conventional analog telephone connection. A
prominent example would be Deutsche Telekom’s T-DSL service.
1.2 Which use does VPN offer?
For LANCOM 1811
Wireless DSL and
LANCOM 1821
Wireless ADSL only
12
A VPN (Virtual Private Network) can be used to set up cost-effective, public
IP networks, for example via the ultimate network: the Internet.
The models LANCOM 1811 Wireless DSL and LANCOM 1821 Wireless
ADSL are equipped with 5 active channels by default. The LANCOM
VPN Option. The additional VPN-25 Option can extend VPN support
to 25 tunnels (including hardware acceleration).
While this may sound unspectacular at first, in practice it has profound effects.
To illustrate this, let's first look at a typical corporate network without VPN
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
technology. In the second step, we will see how this network can be optimized
by the deployment of VPN.
Conventional network infrastructure
First, let's have a look at a typical network structure that can be found in this
form or similar forms in many companies:
LAN
Head Office
EN
LAN
Subsidiary
Workstation in remote
access, e.g. homework
Internet
The corporate network is based on the internal network (LAN) in the headquarters. This LAN is connected to the outside world in three ways:
A subsidiary is connected to the LAN, typically using a leased line.
PCs dial into the central network via modem or ISDN connections (Remote
Access Service – RAS).
The central LAN has a connection to the Internet so that its users can
access the Web, and send and receive e-mail.
All connections to the outside world are based on dedicated lines, i.e.
switched or leased lines. Dedicated lines are very reliable and secure. On the
other hand, they involve high costs. In general, the costs for dedicated lines
are dependent on the distance. Especially in the case of long-distance connections, keeping an eye out of cost-effective alternatives can be worthwhile.
13
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
The appropriate hardware must be available in the headquarters for every
type of required connection (analog dial-up, ISDN, leased lines). In addition
to the original investment costs, ongoing costs are also incurred for the
administration and maintenance of this equipment.
Networking via the Internet
The following structure results when using the Internet instead of direct con-
EN
nections :
Head Office
LAN
14
LAN
Subsidiary
Internet
Workstation in remote
access
All participants have fixed or dial-up connections to the Internet. Expensive
dedicated lines are no longer needed.
All that is required is the Internet connection of the LAN in the headquar-
ters. Special switching devices or routers for dedicated lines to individual
participants are superfluous.
The subsidiary also has its own connection to the Internet.
The RAS PCs connect to the headquarters LAN via the Internet.
The Internet is available virtually everywhere and typically has low access
costs. Significant savings can thus be achieved in relation to switched or dedicated connections, especially over long distances.
The physical connection no longer exists directly between two participants;
instead, the participants rely on their connection to the Internet. The access
LANCOM Wireless DSL – LANCOM Wireless ADSL
technology used is not relevant in this case: ideally is the use of broadband
technologies such as DSL (Digital Subscriber Line) or G.703 (2- Mbit leased
lines). But also a conventional ISDN line can be used.
The technologies of the individual participants do not have to be compatible
to one another, as would be the case for conventional direct connections. A
single Internet access can be used to establish multiple simultaneous logical
connections to a variety of remote stations.
The resulting savings and high flexibility makes the Internet (or any other IP
network) an outstanding backbone for a corporate network.
1.3 What does a router do?
The following sections describe the functionality of routers in general.
The functions supported by your device are listed in the table ’What
can your LANCOM Wireless DSL do?’ →page 18.
Routers connect LANs at different locations and individual PCs to form a Wide
Area Network (WAN). With the appropriate rights, any computer in this WAN
can access other computers and services of the complete WAN (as with 'PC 1'
accessing 'Server A' in the remote LAN in the diagram).
PC 1
Chapter 1: Introduction
EN
server A
router
LAN 1
Connecting a LAN to the Internet does not technically differ from coupling
two LANs. The only difference is that it is not just a handful of computers
behind the Internet provider's router. Instead, it is the net of the networks the public Internet.
1.3.1 Bridgehead to the WAN
All routers have at least two connections:
at least one for the LAN
WAN connection
router
LAN 2
15
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
at least one for WAN connections
In addition to LAN connectivity (10/100 Mbps Ethernet), several models also
offer an integrated switch. For the connecting to the WAN, the routers use
ISDN, xDSL/cable or ADSL connectors. Several devices contain additionally a
wireless network card and can thus integrate also stations of WLANs (Wireless
LANs) into the routing.
The router's task is to transfer data from the local network to the target net-
EN
work via a suitable WAN connection. Data is also transferred from the WAN
to the desired recipients in the LAN.
1.3.2 Areas of deployment for routers
Routers are mainly used for the following applications:
Internet access for a LAN (e.g. via DSL or ISDN)
The Internet consists of countless large and small networks that are interconnected into the world's largest WAN via routers. The router links all the
workstation computers on your local area network to the global Internet.
Security functions such as IP masquerading protect your LAN against
unauthorized access from outside.
LAN to LAN coupling (via VPN or ISDN)
LAN to LAN coupling links individual LANs to form one large network,
even if this means crossing continents. A typical example: A branch office
is to be connected to the LAN of the headquarters. In principle, you can
connect LANs in two ways:
Not possible with
all LANCOM
devices.
High-speed coupling via VPN
The fastest and most economical LAN to LAN links are possible with
VPN (Virtual Private Network) technology, as VPN uses the Internet as
the basis for its communications. The fast xDSL connection of the
router comes into its own here. The precondition: a VPN gateway with
access to the Internet is required on either side of the network interconnection.
VPN tunnel via the
Internet
16
VPN gateways
LANCOM Wireless DSL – LANCOM Wireless ADSL
Conventional via ISDN
Without VPN, a LAN to LAN interconnection can alternatively be realized via ISDN. In this case, an intelligent line management and
sophisticated filter mechanisms keeps connection costs low.
Remote access to the company network (via VPN or ISDN)
The work of many office workers in modern organizations is less and less
dependent on any definite location—the most important factor here is
unimpaired access to shared and freely available information.
Remote Access Service (RAS) is the magic word here. Employees working
from home or field staff can dial into the company network via VPN or
ISDN. When working with remote access via ISDN, the router protects the
company network: the call back function only grants access to known and
registered users.
1.4 What is a Wireless LAN?
The following sections describe the functionality of wireless networks
in general. The functions supported by your device are listed in the
table ’What can your LANCOM Wireless DSL do?’ →page 18.
Chapter 1: Introduction
EN
A Wireless LAN connects single terminals (e.g. PCs or notebooks) to a local
network (also LAN – Local Area Network). In contrast to a conventional LAN,
communication takes place via radio links rather than via network cables. This
is the reason why a Wireless LAN is also called a Wireless Local Area Network
(WLAN).
All functions of a cable-bound network are also available in a Wireless LAN:
access to files, servers, printers etc. is as possible as the connection of individual stations to an internal mail system or to the Internet access.
The advantages of Wireless LANs are obvious: notebooks and PCs can be set
up just where they are needed. Due to Wireless LANs, problems with missing
connections or structural alterations belong to the past.
1.4.1 Which hardware to use?
Each station of the Wireless LAN needs access to the Wireless LAN in the form
of a wireless interface. Devices which have no built-in wireless interface can
be upgraded with a supplement card or an adapter.
17
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
LANCOM Systems offers wireless adapters by its AirLancer product
line. An AirLancer wireless adapter enables a device (e.g. PC or notebook) for access to the Wireless LAN.
1.4.2 Operation modes of Wireless LANs and base stations
Wireless LAN technology and base stations in Wireless LANs are used in the
EN
following operation modes:
Simple direct connections between terminals without base station (ad-
hoc mode)
Larger Wireless LANs, connection to LANs with one or more base stations
(infrastructure network)
Passing-through of VPN-encrypted connections with VPN pass-through
Setting-up of an Internet access
Connecting two LANs via a direct radio link (point-to-point mode)
Connecting of devices with Ethernet interface via base stations (client
mode)
Extending an existing Ethernet network with WLAN (bridge mode)
1.5 What can your LANCOM Wireless DSL do?
The following table contains a direct comparison of the properties and functions of your devices with other models:
Applications
Internet access
LAN to LAN coupling via VPN with 5 active tunnels (dynamic VPN)
LAN to LAN coupling via ISDN
RAS server (via VPN)
RAS server (via ISDN)
18
Wireless DSL
LANCOM 1511
Wireless DSL
LANCOM 1811
Wireless ADSL
LANCOM 1521
Wireless ADSL
LANCOM 1821
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
IP router
IPX router (via ISDN), e.g. for coupling of Novell networks or dialling into
Novell networks
NetBIOS proxy for coupling of Microsoft peer-to-peer networks via ISDN
DHCP and DNS server (for LAN and WAN)
LANCAPI server for the operating with office applications as fax or
answering machine via ISDN interface
Wireless LAN
Wireless transmission by IEEE 802.11g and IEEE 802.11b
Wireless transmission by IEEE 802.11a
Roaming function
WEP encryption:
WEP64, WEP128, WEP152 (up to 128 Bit key length)
IEEE 802.1x/EAP
Multi SSID
Individuelle Passphrases pro MAC-Adresse (LEPS)
WPA – TKIP
LANCOM 1511
Wireless DSL
LANCOM 1811
Wireless DSL
LANCOM 1521
Wireless ADSL
LANCOM 1821
Wireless ADSL
EN
802.11i with hardware acceleration
MAC address filter (ACL)
Access to RADIUS server
Closed network function
Traffic lock function
VLAN
19
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
WAN connection
Connection for DSL or cable modem
EN
ADSL Connection
bus in multi device-mode or in point-to-point mode with auto-
ISDN S
0
matic D-channel protocol identification. Supports static and dynamic
channel bundling per MLPPP and BACP as well as Stac data compression
(Hi/fn)
1)
First LAN port can be configured as Ethernet WAN interface
LAN connection
Integrated 4-port auto-mode- switch (10/100 Mbps) to connect terminals
(workstations etc.) or subordinated switches or hubs.
Support of data packets with VLAN resp. QoS marking for an intelligent
data traffic control within the switch
Security functions
LANCOM 1511
LANCOM 1511
Wireless DSL
LANCOM 1811
Wireless DSL
LANCOM 1811
Wireless DSL
LANCOM 1521
Wireless DSL
LANCOM 1521
Wireless ADSL
1 1
Wireless ADSL
Wireless ADSL
LANCOM 1821
Wireless ADSL
LANCOM 1821
IP masquerading (NAT, PAT) to hide all workstations of the LAN behind
one common public IP address.
Stateful Inspection Firewall
Firewall filters for a selective locking of IP addresses, protocols and ports
MAC address filter control e.g. the access of LAN workstations to IP routing functions
Configuration protection to block “brute force attacks“
20
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 1: Introduction
Configuration
Configuration with LANconfig or with web browser, additionally terminal
mode for Telnet or other terminal programs, SNMP interface and TFTP
server function.
Remote configuration via ISDN (with ISDN-PPP connections e.g. via Windows network and dial-up connections)
Serial configuration interface
Callback function with PPP authentication mechanisms for restriction to
fixed ISDN telephone numbers
FirmSafe with firmware versions for absolutely secure software upgrades
Optional software extensions
ISDN leased line option
LANCOM VPN Option with 25 active tunnels (hardware accelerated) for
IPSec-over-WLAN or for protection of network couplings and direct radio
link
LANCOM Public Spot Option for installation of public accessible WLAN
base stations (Wireless Public Hot Spot)
LANCOM 1511
Wireless DSL
LANCOM 1811
Wireless DSL
LANCOM 1521
Wireless ADSL
LANCOM 1821
Wireless ADSL
EN
21
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
2 Installation
This chapter will assist you to quickly install hardware and software. First,
check the package contents and system requirements. The device can be
installed and configured quickly and easily if all prerequisites are fulfilled.
2.1 Package contents
EN
Please check the package contents for completeness before starting the
installation. In addition to the base station itself, the package should contain
the following accessories:
Power adapter
LAN connector cable (green plugs)
WAN connector cable (dark blue plugs)
ADSL connector cable (transparent plugs)
ISDN connector cable (light blue plugs)
2 external screw-on single band antennas (2,4
GHz) with reverse SMA connection
2 external screw-on dualband antennas with
reverse SMA connection
Connector cable for the configuration interface
LANCOM CD
Printed documentation
Wireless DSL
LANCOM 1511
Wireless DSL
LANCOM 1811
Wireless ADSL
LANCOM 1521
LANCOM 1821
Wireless ADSL
22
If anything is missing, please contact your retailer or the address stated on the
delivery slip of the unit.
2.2 System preconditions
Computers that connect to a LANCOM Wireless DSL must meet the following
minimum requirements:
LANCOM Wireless DSL – LANCOM Wireless ADSL
Operating system that supports TCP/IP, e.g. Windows XP, Windows Mil-
lennium Edition (Me), Windows 2000, Windows 98, Windows 95, Windows NT, Linux, BSD Unix, Apple Mac OS, OS/2, BeOS.
Access to the LAN via the TCP/IP protocol.
The LANtools and the LANCAPI functions also require a Windows
operating system. A web browser is required for access to WEBconfig.
2.3 Introducing LANCOM Wireless DSL
This section introduces your device. We will give you an overview of all status
displays, connections and switches.
While the information in this section is useful for the installation of the
device, it is not absolutely essential. You may therefore skip this section for the time being and go straight forward to the installation on
page 34.
2.3.1 Status displays
Chapter 2: Installation
EN
The front and the rear panels of the unit feature a series of light emitting
diodes (LEDs) that provide information on the status of the device.
Front side
The various LANCOM Wireless DSL models have different numbers of indicators on the front panel depending on their functionality (picture: LANCOM
1811 Wireless DSL).
1811 Wireless DSL
VPN
not available on LANCOM 1511 Wireless DSL
and LANCOM 1521 Wireless ADSL
Top panel
The two LEDs on the top panel provide a convenient overview of the most
important status information, especially when the device is installed vertically.
23
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
EN
Meanings of the LEDs
In the following sections we will use different terms to describe the behaviour
of the LEDs:
Blinking means, that the LED is switched on or off at regular intervals in
the respective indicated colour.
Flashing means, that the LED lights up very briefly in the respective col-
our and stay then clearly longer (approximately 10x longer) switched off.
Inverse flashing means the opposite. The LED lights permanently in the
respective colour and is only briefly interrupted.
Flickering means, that the LED is switched on and off in irregular inter-
vals.
Power
This LED indicates that the device is operational. After the device has been
switched on, it will flash green for the duration of the self-test. After the selftest, either an error is output by a flashing red light code or the device starts
and the LED remains lit green.
Power
Online
24
off Device off
green blinking Self-test when powering up
green constantly on Device ready for use
red/
green
red blinking Time or connect- charge reached
blinking alternately Device insecure: configuration password not assigned
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
The power LED flashes red/green in alternation until a configuration
password has been specified. Without a configuration password, the
configuration data of the LANCOM is insecure. Under normal circumstances, you would assign a configuration password during the basic
configuration (see instructions in the following chapter). For information about a later assignment of the configuration password see the
section ’Security settings’ →page 69.
EN
Flashing Power LED but no connection?
There's no need to worry if the Power LED blinks red and you can no
LANCOM
Systems
longer connect to the WAN. This simply indicates that a preset time or
connect-charge limit has been reached. There are three methods
available for unlocking:
Reset connect charge protection.
Increase the limit that has been reached.
Signal for reached time
or connect-charge
limit
Completely deactivate the lock that has been triggered (set limit
to '0').
If a time or connect charge limit has been reached, you will be notified in LANmonitor. To
reset the connect charge protection, select Reset Charge and Time Limits in the context
menu (right mouse click). You can configure the connect charge settings in LANconfig under
Management / Costs (you will only be able to access this configuration if 'Complete con-
figuration display' is selected under View / Options…).
You will find the connect charge protection reset in WEBconfig and all parameters under
Expert Configuration / Setup / Charges-module.
Online
The Online LED indicates the overall status of all WAN ports:
off No active connection
green flashing Establishing first connection
green inverse flashing Establishing further connection
green constantly on At least one connection established
red constantly on Error establishing the previous connection
Power
Power
25
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
DSL status
(LANCOM 1511
Wireless DSL and
LANCOM 1811
Wireless DSL only)
DSL data
EN
(LANCOM 1511
Wireless DSL and
LANCOM 1811
Wireless DSL only)
ADSL Status
(LANCOM 1521
Wireless ADSL and
LANCOM 1821
Wireless ADSL only)
Connection status of the DSL connection:
off not connected
green blinking Establishing connection
green flashing Protocol negotioation
green constantly on Connection established
Data traffic via the DSL connection:
off No network device connected
green constantly on Connection to network device operational, no data traffic
green flickering Data traffic (send or receive)
red flickering Collision of packets
Connection status of the ADSL connection:
off not connected
green flashing Initialization
green constantly on Synchronization successful
red flickering Error (e.g. CRC error or framing error
red constantly on Synchronization aborted
ADSL Data
(LANCOM 1521
Wireless ADSL and
LANCOM 1821
Wireless ADSL only)
26
Data traffic via the ADSL connection:
off No connection
green flashing Establishing connection
green invers flashing Establishing further connections
green constantly on At least one connection estahblished
green flickering Data traffic (send or receive)
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
ISDN status
ISDN data
Status of ISDN S0 connection:
off Not connected or no S0 voltage (no error message)
green blinking Initializing D-channel (establishing contact with the connec-
green constantly on D channel ready for use
red blinking Error (CRC error, framing error, etc.)
red constantly on Activation of D-channel failed
tion point)
If the ISDN status LED goes out automatically, this does not indicate
an S
bus error. Many ISDN connections and PBXs put the S0 bus into
0
a power-save mode after a certain time. The S
bus is automatically
0
reactivated as required, and the ISDN status LED will once again light
up green.
Separate status display for both ISDN B channels:
off No connection established
green blinking Dialling
green flashing Establishing first connection
green flashing Establishing further connection
green constantly on Connection established via B channel
green flickering Data traffic (send or receive)
EN
LAN 1
LAN 2
LAN 3
LAN 4
WLAN link
Status of the four LAN ports in the integrated switch:
off No network device connected
green constantly on Connection to network device operational, no data traffic
green flickering Data traffic
red flickering Collision of packets
Gives information about the wireless LAN access of the internal wireless network adapter of the base station.
27
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
The WLAN link display can assume three states:
off No wireless LAN adapter found
green constantly on Wireless LAN adapter ready for use
green flickering Activity in wireless LAN (blinking frequency indicates the
number of registered stations)
EN
WLAN data
VPN
Security
Gives information about the data traffic in the wireless LAN access.
The WLAN data display can assume three states:
off No data traffic
green flickering Data traffic
green flashing Error in the wireless LAN (e.g. sending error because of bad
connection quality)
Status of a VPN connection. Only active with LANCOM VPN Option installed.
off No VPN tunnel established
green blinking Negotiating VPN connection
green flashing Establishing first connection
green inverse flashing Establishing further connection
green constantly on VPN connection established
Status of the firewall. Indicates the status of the security settings and averted
attacks to the protected network.
green constantly on Security settings ok. Packet filter rules are set.
red/
green
red flickering Security alert: data packet filtered by firewall rules
blinking Insecure configuration
28
2.3.2 The back of the unit
The connections and switches of the router are located on the back panel
(example: LANCOM 1811 Wireless DSL):
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
AC12V
LAN3LAN4 LAN2 LAN1
WAN
10/100Mbit/s
ISDN S
0
Config(COM)
Reset
Antenna MainAntenna Aux
쐋 쐄쐏 쐂 쐊
Connection for diversity antenna
Connection for the included power adapter
Switch with four 10/100Base-Tx connections
WAN port for LANCOM 1511 Wireless DSL and LANCOM 1811 Wireless
DSL respectively ADSL port for LANCOM 1521 Wireless ADSL and
LANCOM 1821 Wireless ADSL
ISDN/S
port
0
Serial configuration port
Reset switch
Connector for main antenna (use this connector to connect additional
AirLancer Extender antennas)
The function of the reset button
The reset button has two different functions depending on how long it is
pressed:
Restarting the device (soft reset) – push the button for less than five
seconds. The device will restart.
Resetting the configuration (hard reset) – push the button for more
than five seconds. All the device’s LEDs will light up green and stay on. As
soon as the reset switch is released, the device will restart with factory settings.
EN
29
LANCOM Wireless DSL – LANCOM Wireless ADSL
Chapter 2: Installation
Note that resetting the device leads to a loss on the WLAN encryption
settings within the device and that the default WEP key is active again
(’Standard WEP encryption’ →page 72).
2.4 Hardware installation
The installation of the LANCOM Wireless DSL base station takes place in the
EN
following steps:
햲 Antennas – Screw on the both included diversity antennas at the back of
the LANCOM Wireless DSL base station.
햳 LAN – First connect the LANCOM Wireless DSL base station to your LAN
or to an individual PC. For that purpose, plug the included network cable
(green plugs) into the LAN connector of the device 쐋 and the other end
into a free network connecting socket of your local network, into a free
socket of a hub/switch or into the network socket of an individual PC.
The LAN connector identifies automatically the transfer rate (10/100
Mbps) of the connected network device (autosensing). A parallel connection of devices with different speeds and types is possible.
1511/1811 only
1521/1821 only
30
You should never have more than one unconfigured LANCOM
Wireless DSL in a network segment at any given time. All unconfigured LANCOM Wireless DSL devices use the same IP address (with the
final digits '254'), which would result in an address conflict. To avoid
problems, always configure multiple LANCOM Wireless DSL devices
one at a time, immediately assigning each device a unique IP address
(one that does not end with '254').
햴 DSL – connect the WAN interface 쐏 to the DSL modem socket using the
supplied DSL connector cable (dark blue plugs).
햵 ADSL – connect the ADSL interface 쐏 to the splitter using the supplied
ADSL connector cable (transparent plugs).
햶 ISDN – to connect the LANCOM Wireless DSL to the ISDN, plug one end
of the supplied ISDN connector cable (light blue plugs) in the ISDN/S
쐄 of the router and the other end into an ISDN/S
multi-device mode or
0
port
0
point-to-point mode connection.
Loading...