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Lancom DSL-I 1611 Office Manual

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LANCOM 800+
LANCOM DSL/I- 10+
LANCOM DSL/I- 1611 Office
© 2004 LANCOM Systems GmbH, Wuerselen (Germany). All rights reserved.
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 per-
mission by LANCOM Systems. We reserve the right to make any alterations that arise as the result of technical develop-
ment.
Trademarks
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, November 2004
11
0268
/11
0
4
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Preface
3
EN
Preface
Thank you for placing your trust in this
LANCOM
product.
With the LANCOM router, you have chosen a powerful router that lets you
easily and conveniently provide individual computers or an entire local net-
work with high-speed Internet access. Dial-in connections and LAN to LAN
couplings can be realized depending on the LANCOM model via ISDN or VPN.
Model variants
This user manual applies to the following models of the LANCOM router which
are different in hard and software equipment:
LANCOM 800+
LANCOM DSL/I-10+
LANCOM DSL/I-1611 Office
Model
restrictions
The sections 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 clas-
sified under the general term LANCOM router.
Security settings
For a carefree use of your device, we recommend to carry out all security set-
tings (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 informa-
tion regarding this topic can be found in chapter ’Security settings’
→page 66.
We ask you additionally to inform you about technical developments and
actual hints to your product on our Web page www.lancom.de
, and to down-
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 router. It also contains the most important technical spec-
ification for the device.
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Preface
4
EN
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 top-
ics that apply to a variety of devices. These include for example:
Systems design of the LCOS operating system
Configuration
Management
Diagnosis
Security
Routing and WAN functions
Firewall
Quality of Service (QoS)
Virtual Private Networks (VPN)
Virtual Local Networks (VLAN)
Wireless networks (WLAN)
LANCAPI
Further server services (DHCP, DNS, charge management)
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 enhance-
ments, 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
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Preface
5
EN
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.
Important instruction that should be followed.
Additional instructions which can be helpful, but are not
required.
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Contents
6
EN
Contents
1 Introduction 9
1.1 How does DSL work? 9
1.2 Which use does VPN offer? 11
1.3 Firewall 14
1.4 What does a router do? 15
1.4.1 Bridgehead to the WAN 16
1.4.2 Areas of deployment for routers 16
1.5 What can your LANCOM router do? 17
2 Installation 20
2.1 Package contents 20
2.2 System preconditions 20
2.3 Introducing the LANCOM router 21
2.3.1 Status displays 21
2.3.2 The connections of the unit 26
2.4 Hardware installation 28
2.5 Software installation 29
2.5.1 Starting LANCOM setup 30
2.5.2 Which software should you install? 30
3 Basic configuration 32
3.1 Which information is necessary? 32
3.1.1 TCP/IP settings 32
3.1.2 Configuration protection 34
3.1.3 Settings for the DSL connection 34
3.1.4 Settings for the ISDN connection 34
3.1.5 Connect charge protection 35
3.2 Instructions for LANconfig 35
3.3 Instructions for WEBconfig 37
3.4 TCP/IP settings to workstation PCs 41
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Contents
7
EN
4 Setting up Internet access 43
4.1 Instructions for LANconfig 45
4.2 Instructions for WEBconfig 45
5 Linking two networks 46
5.1 What information is necessary? 47
5.1.1 General information 47
5.1.2 Settings for the TCP/IP router 49
5.1.3 Settings for the IPX router 50
5.1.4 Settings for NetBIOS routing 51
5.2 Instructions for LANconfig 52
5.3 Instructions for WEBconfig 52
6 Providing dial-in access 54
6.1 Which information is required? 54
6.1.1 General information 55
6.1.2 Settings for TCP/IP 56
6.1.3 Settings for IPX 56
6.1.4 Settings for NetBIOS routing 57
6.2 Settings for the dial-in computer 58
6.2.1 Dial-up via VPN 58
6.2.2 Dial-up via ISDN 58
6.3 Instructions for LANconfig 59
6.4 Instructions for WEBconfig 59
7 Sending faxes with LANCAPI 61
7.1 Installation of the LANCOM CAPI fax modem 62
7.2 Installation of the MS Windows fax service 63
7.3 Sending a fax 64
7.3.1 Send a fax with any given office application 64
7.3.2 Send a fax with the MS Windows fax service 64
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Contents
8
EN
8 Security settings 66
8.1 The security settings wizard 66
8.1.1 Wizard for LANconfig 66
8.1.2 Wizard for WEBconfig 67
8.2 The firewall wizard 67
8.2.1 Wizard for LANconfig 67
8.2.2 Configuration under WEBconfig 68
8.3 The security checklist 68
9 Troubleshooting 71
9.1 No WAN connection is established 71
9.2 DSL data transfer is slow 72
9.3 Unwanted connections under Windows XP 72
10 Appendix 73
10.1 Performance data and specifications 73
10.2 Contact assignment 74
10.2.1 Ethernet WAN interface 74
10.2.2 ISDN-S
0
interface 75
10.2.3 Ethernet interfaces 10/100Base-T 75
10.2.4 Configuration interface (Outband) 76
10.3 CE declaration of conformity 76
11 Index 77
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Chapter 1: Introduction
9
EN
1Introduction
The models LANCOM 800+, LANCOM DSL/I-10+ and LANCOM DSL/I-1611
Office are fully-featured routers that therefore also can be used in combina-
tion with the integrated firewall for providing secure Internet access to a com-
plete local network (LAN).
The VPN option, which is either integrated already or can be activated subse-
quently, enables the LANCOM DSL/I-1611 Office to act as powerful dynamic
VPN gateway for external offices or mobile users.
The LANCOM router models offer each an ISDN connector and partially an DSL
connector (LANCOM DSL/I-10+ and LANCOM DSL/I-1611 Office). The ISDN
line can be used as back-up for the DSL connection (LANCOM DSL/I-10+ and
LANCOM DSL/I-1611 Office), for remote management of the router, as basis
for the office communication via LANCAPI or for establishing dynamic VPN
connections to remote sites with dynamic IP addresses (LANCOM DSL/I-1611
Office only).
1.1 How does DSL work?
Since the late 1980s, scientists have been working on the idea of using con-
ventional 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-
ephone line distance used permits considerably higher transfer rates than
would be possible when relying solely on the telephone network.
ADSL connection via
telephone line
Internet
Local exchange (central office)
LANCOM router
LAN
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Chapter 1: Introduction
10
EN
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 connec-
tion.
With an ADSL connection, a user can download at up to 8 Mbps (“down-
stream”) 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, between 1000 and 3000 Kbps download and 128 up to
384 Kbps upload speed.
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 for-
warded to the appropriate networks. Voice signals are passed on to the exist-
ing telephone network, while data signals are forwarded to their destinations
(i.e. Internet providers) via high-bandwidth network connections.
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.
LANCOM 800+ – LANCOM DSL/I- 10+ – LANCOM DSL/I- 1611 Office
Chapter 1: Introduction
11
EN
In some models the ADSL modem is integrated directly in the router.LANCOM
800+, LANCOM DSL/I-1611 Office or LANCOM DSL/I-10+ are connected to
the splitter using a separate ADSL modem.
LANCOM 800+, LANCOM DSL/I-1611 Office or LANCOM DSL/I-10+
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).
1.2 Which use does VPN offer?
For LANCOM DSL/I-
1611 Office only
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 model LANCOM DSL/I-1611 Office from LCOS-Version 3.32
upwards is equipped with 5 channels by default. The additional
LANCOM VPN Option can extend VPN support to 25 active tunnels.
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
technology. In the second step, we will see how this network can be optimized
by the deployment of VPN.
Router
ADSL
modem
Internet
Splitter
Telephone
Telephone
network
Splitter
ADSL provider
Switching node
DSL access
multiplexer
Subscriber
2 …


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