Lancom Systems 1621, 821 DSL transfer protocol IP masquerading, IP router IPoE Encryption IPSec

Page 80

EN

LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN

Chapter 11: Index

 

 

 

 

provider

36, 40

Lock ports

 

70

transfer protocol

40

IP address

 

33, 51

DSL technologies

9

IP address of the LANCOM

 

29

DSL transfer protocol

36

IP masquerading

15, 17, 19, 69

E

 

IP router

 

19

46, 54

IPoE

 

44

Encryption

 

IPSec

 

46, 54

F

 

 

 

IPX

 

58

Fax

10

Binding

 

51, 57

Filter mechanisms

18

External Network Number

51, 57

Firewall

15, 20, 70

Frame type

 

51

Firewall filter

67

Internal-Net-Number

 

57

FirmSafe

20

IPX conventions

 

51

Flat rate

44

IPX router

 

19

H

 

Settings

 

50

 

ISDN

 

17

Hardware installation

28

 

1TR6

 

74

 

 

 

I

 

caller ID

 

48, 55, 56

ICMP

70

Connect charge information

36

Installation

21

connection

 

30

ADSL

29

Connector cable

 

21

configuration port

29

D channel

 

56, 74

DSL

29

data compression

 

44

ISDN

29

Dial-innumber

 

44

LAN

28

DSS1

 

74

LANtools

30

dynamic channel bundling

44

power adapter

29

MSN

 

34, 36

Interconnection

46

NTBA

 

30

Security aspects

46

password for connection

49

Internet access

17, 18, 43

S0 port

 

27, 28

Authentication data

43

ISDN connection

 

 

Default gateway

44

Basic settings

 

34

DNS server

44

ISDN leased line option

 

20

Flat rate

44

ISDN modem

 

54

IP address

44

ISDN PBX

 

34

Netmask

44

ISDN S0 connection

 

19, 74

Internet provider

43

L

 

 

Intrusion Detection

15

 

 

LAN

 

 

IP

 

 

 

 

Connector cable

 

21

Filter

70

 

 

 

 

80

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Contents Lancom 821 ADSL/ISDN Lancom 1621 ADSL/ISDN Lancom 1711 VPN Lancom Systems GmbH, Wuerselen Germany. All rights reserved Thank you for placing your trust in this Lancom product Security settingsPreface Model variants Preface Contents Providing dial-up access Installation of the MS Windows fax service Sending a faxLinking two networks Sending faxes with LancapiAppendix Security checklistTroubleshooting Access to a complete local network LAN IntroductionHow does Adsl work? AddressesAll services via a single cable-thanks to the splitter Ideal for Internet surfersADSL-over-ISDN or ADSL-over-POTS? CodeWhich use does VPN offer? Conventional network infrastructure Networking via the Internet Firewall What does a router do? Denial-of-Service ProtectionQuality-of-Service / Traffic management Bridgehead to the WAN Areas of deployment for routersAt least one for WAN connections LAN to LAN coupling via VPN or IsdnConventional via Isdn Remote access to the company network via VPN or IsdnWhat can your Lancom do? WAN connection Configuration System preconditions InstallationPackage contents Front side Introducing LancomStatus displays LED remains lit green Top panelMeanings of the LEDs Flashing Power LED but no connection? Online LED indicates the overall status of all WAN portsConnection status of the Adsl link Connection status of the WAN connectionData traffic via the Adsl link Data traffic via the DSL connectionStatus of the four LAN ports in the integrated switch Separate status display for both Isdn B channelsBack of the unit Hardware installation Adsl connector cable transparent plugs Using the included power adapterSoftware installation Starting Lancom setupWhich software should you install? Which information is necessary? Basic configuration1 TCP/IP settings New LAN-fully automatic configuration possible Configure manually nevertheless?Information required for manual TCP/IP configuration IP address and netmask for the LancomConfiguration protection Settings for the DSL connectionSettings for the Isdn connection Enable Dhcp server?Instructions for LANconfig Start up LANconfig by clicking Start Programs LancomLANconfig Connect charge protectionComplete the configuration with Finish Instructions for WEBconfig Network without Dhcp serverOr with a name as discribed above Starting the wizards in WEBconfigNetwork with Dhcp server Basic configuration Entering the password in the web browser TCP/IP settings to workstation PCs IP address assignment via the Lancom defaultIP address assignment via a separate Dhcp server Manual IP address assignmentBasic configuration Additional information for unknown Internet providers Setting up Internet accessDoes the setup wizard know your Internet provider? User name and password Protocol PPPoE, Pptp or Plain Ethernet IPoEAdditional connection options Dynamic channel bundling Isdn onlyComplete the configuration with Apply Tools Setup WizardLANconfig Quick access to the setup wizards Security aspects Always configure both sidesLinking two networks What information is necessary? General informationIsdn Settings for the TCP/IP router Extranet VPN Settings for the IPX routerDNS access to the remote LAN Settings for NetBIOS routing Perform the configuration on both routers, one at a time Ping quick testing for TCP/IP connections Providing dial-up access Which information is required?Coupling Entry Settings for TCP/IP Isdn calling line identity CLISettings for IPX WANDial-up via Isdn Settings for the dial-in computerDial-up via VPN Instructions for LANconfig Instructions for WEBconfig Sending faxes with Lancapi Installation of the Lancom Capi fax modem Lancom CDInstallation of the MS Windows fax service Select the option Printers and Faxes from the control panelSend a fax with any given office application Send a fax with the MS Windows fax serviceSending a fax Sending faxes with Lancapi Wizard for LANconfig Security settingsSecurity settings wizard Wizard for WEBconfig Firewall wizardRules Security checklistConfiguration under WEBconfig Have you assigned a password for the configuration? Have you permitted remote configuration?Have you activated the Firewall? Do you make use of a ’Deny All’ Firewall strategy?Is your saved Lancom configuration stored in a safe place? Have you closed critical ports with filters?Troubleshooting Problems with the cabling?No WAN connection is established DSL data transfer is slowCable testing Unwanted connections under Windows XPIncreasing the TCP/IP window size under Windows LAN statisticsTroubleshooting Performance data and specifications AppendixATM Pin RJ45 socket Contact assignmentAdsl interface Pin RJ45 socket, corresponding to ISO 8877, EN Ethernet WAN interface Lancom 1711 VPNISDN-S0interface Configuration interface Outband CE declaration of conformityEthernet interfaces 10/100Base-T Pin mini-DIN socketIndex NumericsFirmSafe IPX conventions Flat rate IPX router Settings Hardware installation 1TR6 Caller IDInstallation Connection Connector cable Configuration port ChannelPower adapter 21, 27 NetBIOSSecurity aspects Server Setup Specify MSN LAN to LAN coupling 17, 18, 19, 34Settings Stateful Inspection Telephone Online PowerVoltage switch WAN data VPN client WAN status Switch System preconditions Connector cable WAN connection
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1621, 1711, 821 specifications

Lancom Systems is a notable player in the networking solutions market, and its range of routers, specifically the 821, 1621, and 1711 models, showcases the company's commitment to delivering robust, high-quality products for various enterprise needs. Each model brings distinct features, making them suitable for different environments and operational demands.

The Lancom 821 is particularly designed for small to medium-sized enterprises (SMEs) requiring reliable internet connectivity and secure networking. This router supports various VPN technologies, ensuring secure data transmission across the organization. Equipped with advanced firewall capabilities, the 821 can handle multiple connections while protecting against potential cyber threats. Its support for IPv6 enhances compatibility with future networks, making it a long-term investment. The device’s manageable architecture allows for remote access and troubleshooting, reducing the need for on-site IT interventions.

On the other hand, the Lancom 1621 is tailored for larger organizations or those with more extensive networking demands. This model offers enhanced throughput and is capable of managing large volumes of traffic without compromising performance. It features a variety of WAN connection options, including DSL, LTE, and fiber, allowing businesses to choose the best solution for their requirements. The 1621 also incorporates sophisticated Quality of Service (QoS) settings, which prioritize critical applications to ensure optimal performance during peak times. Built-in redundancy features enhance reliability, making it an excellent choice for mission-critical applications.

The Lancom 1711 takes networking capabilities a step further, targeting enterprises with even more complex needs. It boasts advanced routing and switching features, making it suitable for enterprise-grade deployments. The 1711 supports enterprise WLAN management, allowing seamless integration with wireless access points. Its robust performance over WAN connections enables the deployment of various real-time applications, such as voice over IP (VoIP) and video conferencing, without latency issues. Security is a top priority, with features including an IPSec VPN and integrated threat detection to safeguard organizational data.

In summary, the Lancom 821, 1621, and 1711 routers serve as versatile tools for businesses, each designed with distinct capabilities to meet specific networking needs. Their strengths lie in their security features, support for various connection types, and reliable performance under heavy loads. With these devices, organizations can ensure that their network infrastructure not only meets current demands but is also poised for future growth.