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110642/0109
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Würselen
Germany
E-Mail: info@lancom.eu
Internet www.lancom.eu
LANCOM 821+
LANCOM 1711+ VPN
LANCOM 1721 VPN
LANCOM 821+ LANCOM 1711+ VPN LANCOM 1721 VPN
쮿
Handbuch
쮿
Manual
...connecting your business
110642_LC-821plus-1711plus-1721-1 1110642_LC-821plus-1711plus-1721-1 1 07.01.2009 14:03:1307.01.2009 14:03:13
LANCOM 821+
LANCOM 1711+ VPN
LANCOM 1721 VPN
© 2009 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.
All explanations and documents for registration of the products you find in the appendix of this documentation, if they
were present at the time of printing.
Trademarks
Windows
®
, Windows Vista™, Windows XP
®
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 mentioned may be trademarks or registered trademarks of their respective owners.
This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit http://www.openssl.org/
.
This product includes cryptographic software written by Eric Young (eay@cryptsoft.com
).
This product includes software developed by the NetBSD Foundation, Inc. and its contributors.
This product includes the LZMA SDK written by Igor Pavlov.
Subject to change without notice. No liability for technical errors or omissions.
LANCOM Systems GmbH
Adenauerstr. 20/B2
52146 Wuerselen
Germany
www.lancom.de
Wuerselen, January 2009
110642/0109
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Preface
3
EN
Preface
Thank you for placing your trust in this
LANCOM Systems
product.
With the LANCOM Router you have chosen a powerful 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 high-speed Internet.
Model variants
This user manual applies to the following models of the LANCOM Router
series:
LANCOM 821+
LANCOM 1721 VPN
LANCOM 1711+ VPN
Model
restriction
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
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.de for the latest information about your product and technical develop-
ments, and also to download our latest software versions.
User manual and reference manual
The documentation of your device consists of the following parts:
Installation guide
User manual
Reference manual
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Preface
4
EN
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 can be found on the LANCOM product 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 models. These include, for exam-
ple:
The system design of the operating system LCOS
Configuration
Management
Diagnosis
Security
Routing and WAN functions
Firewall
Quality of Service (QoS)
Virtual Private Networks (VPN)
Virtual Local Networks (VLAN)
Backup solutions
LANCAPI
Further server services (DHCP, DNS, charge management)
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.
In case you encounter any errors, or just want to issue critics 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. The area 'Support' will
help you with many answers to frequently asked questions (FAQs).
Furthermore, the knowledgebase offers you a large reserve of infor-
mation. The latest drivers, firmware, utilities and documentation are
constantly available for download.
In addition, LANCOM support is available. For telephone numbers and
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Preface
5
EN
contact addresses of LANCOM support, please see the enclosed leaf-
let or the LANCOM Systems website.
Information symbols
Very important instructions. Failure to observe this may result in damage.
Important instruction that should be observed.
Additional information that may be helpful but which is not required.
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Contents
6
EN
Contents
1 Introduction 9
1.1 How do ADSL and ADSL 2+ work? 9
1.2 What does VPN offer? 10
1.3 What can your LANCOM Router do? 11
2 Installation 14
2.1 Package contents 14
2.2 System requirements 14
2.3 Status displays, interfaces and hardware installation 15
2.3.1 Status displays 15
2.3.2 Device connectors 19
2.4 Hardware installation 22
2.5 Software installation 23
2.5.1 Starting the software setup 24
2.5.2 Which software should I install? 24
3 Basic configuration 25
3.1 What details are necessary? 25
3.1.1 TCP/IP settings 25
3.1.2 Configuration protection 27
3.1.3 Settings for the DSL connection 27
3.1.4 Settings for the ISDN Connection 28
3.1.5 Charge protection 28
3.2 Instructions for LANconfig 28
3.3 Instructions for WEBconfig 30
3.4 TCP/IP settings to workstation PCs 33
4 Setting up Internet access 35
4.1 The Internet Connection Wizard 37
4.1.1 Instructions for LANconfig 37
4.1.2 Instructions for WEBconfig 38
4.2 The Firewall Wizard 38
4.2.1 LANconfig Wizard 39
4.2.2 Configuration under WEBconfig 39
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Contents
7
EN
5 Linking two networks 40
5.1 What information is necessary? 41
5.1.1 General information 41
5.1.2 Settings for the TCP/IP router 43
5.1.3 Settings for the IPX router 44
5.1.4 Settings for NetBIOS routing 45
5.2 Instructions for LANconfig 46
5.3 1-Click-VPN for networks (site-to-site) 47
5.4 Instructions for WEBconfig 48
6 Providing dial-in access 49
6.1 Which information is required? 49
6.1.1 General information 50
6.1.2 Settings for TCP/IP 51
6.1.3 Settings for IPX 52
6.1.4 Settings for NetBIOS routing 52
6.2 Settings for the dial-in computer 53
6.2.1 Dial-up via VPN 53
6.2.2 Dial-up via ISDN 53
6.3 Instructions for LANconfig 53
6.4 1-Click-VPN for LANCOM Advanced VPN Client 54
6.5 Instructions for WEBconfig 55
7 Sending faxes with LANCAPI 56
7.1 Installation of the LANCOM CAPI Faxmodem 57
7.2 Installation of the MS Windows fax service 58
7.3 Sending a fax 58
7.3.1 Send a fax with any given office application 58
7.3.2 Send a fax with the MS Windows fax service 59
8 Security settings 60
8.1 The security settings wizard 60
8.1.1 Wizard for LANconfig 60
8.1.2 Wizard for WEBconfig 61
8.2 The security checklist 61
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Contents
8
EN
9 Troubleshooting 65
9.1 No WAN connection is established 65
9.2 DSL data transfer is slow 65
9.3 Unwanted connections under Windows XP 66
9.4 Cable testing 66
10 Appendix 68
10.1 Performance data and specifications 68
10.2 Contact assignment 69
10.2.1 WAN interface 69
10.2.2 ADSL interface 69
10.2.3 ISDN S
0
interface 70
10.2.4 Ethernet interface 10/100Base-TX 70
10.2.5 Configuration interface (Outband) 71
10.3 Declaration of conformity 71
11 Index 72
LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Index
75
EN
W
WAN
Connector cable
14
WEBconfig
30
System requirements
15
76

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