Lancom Systems 821, 1711, 1621 manual What can your Lancom do?, Conventional via Isdn

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

Chapter 1: Introduction

access to the Internet is required on either side of the network inter- connection.

VPN tunnel via the

Internet

EN

VPN gateways

Conventional via ISDN

Without VPN, a LAN to LAN interconnection can alternatively be real- ized 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.

1.5What can your LANCOM do?

The following table contains a direct comparison of the properties and func- tions of your devices with other models:

LANCOM 821 ADSL

LANCOM 1621 ADSL

LANCOM 1711 DSL

 

 

 

Applications

Internet access

LAN to LAN coupling via VPN

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Contents Lancom 821 ADSL/ISDN Lancom 1621 ADSL/ISDN Lancom 1711 VPN Lancom Systems GmbH, Wuerselen Germany. All rights reserved Security settings PrefaceThank you for placing your trust in this Lancom product Model variants Preface Contents Linking two networks Providing dial-up accessInstallation of the MS Windows fax service Sending a fax Sending faxes with LancapiSecurity checklist TroubleshootingAppendix How does Adsl work? Access to a complete local network LANIntroduction 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 Denial-of-Service Protection Quality-of-Service / Traffic managementWhat does a router do? At least one for WAN connections Bridgehead to the WANAreas of deployment for routers LAN to LAN coupling via VPN or IsdnRemote access to the company network via VPN or Isdn What can your Lancom do?Conventional via Isdn WAN connection Configuration Installation Package contentsSystem preconditions Introducing Lancom Status displaysFront side Top panel Meanings of the LEDsLED remains lit green Flashing Power LED but no connection? Online LED indicates the overall status of all WAN portsData traffic via the Adsl link Connection status of the Adsl linkConnection status of the WAN connection 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? Basic configuration 1 TCP/IP settingsWhich information is necessary? Information required for manual TCP/IP configuration New LAN-fully automatic configuration possibleConfigure manually nevertheless? IP address and netmask for the LancomSettings for the Isdn connection Configuration protectionSettings for the DSL connection Enable Dhcp server?LANconfig Instructions for LANconfigStart up LANconfig by clicking Start Programs Lancom Connect charge protectionComplete the configuration with Finish Instructions for WEBconfig Network without Dhcp serverStarting the wizards in WEBconfig Network with Dhcp serverOr with a name as discribed above Basic configuration Entering the password in the web browser IP address assignment via a separate Dhcp server TCP/IP settings to workstation PCsIP address assignment via the Lancom default Manual IP address assignmentBasic configuration Setting up Internet access Does the setup wizard know your Internet provider?Additional information for unknown Internet providers Additional connection options User name and passwordProtocol PPPoE, Pptp or Plain Ethernet IPoE Dynamic channel bundling Isdn onlyTools Setup Wizard LANconfig Quick access to the setup wizardsComplete the configuration with Apply Always configure both sides Linking two networksSecurity aspects What information is necessary? General informationIsdn Settings for the TCP/IP router Settings for the IPX router DNS access to the remote LANExtranet VPN 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 WANSettings for the dial-in computer Dial-up via VPNDial-up via Isdn 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 the MS Windows fax service Sending a faxSend a fax with any given office application Sending faxes with Lancapi Security settings Security settings wizardWizard for LANconfig Wizard for WEBconfig Firewall wizardSecurity checklist Configuration under WEBconfigRules Have you activated the Firewall? Have you assigned a password for the configuration?Have you permitted remote configuration? 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?No WAN connection is established TroubleshootingProblems with the cabling? DSL data transfer is slowIncreasing the TCP/IP window size under Windows Cable testingUnwanted connections under Windows XP LAN statisticsTroubleshooting Performance data and specifications AppendixATM Contact assignment Adsl interfacePin RJ45 socket Ethernet WAN interface Lancom 1711 VPN ISDN-S0interfacePin RJ45 socket, corresponding to ISO 8877, EN Ethernet interfaces 10/100Base-T Configuration interface OutbandCE declaration of conformity Pin mini-DIN socketIndex NumericsInstallation Connection FirmSafe IPX conventions Flat rate IPX router SettingsHardware installation 1TR6 Caller ID Connector cable Configuration port ChannelSecurity aspects Server Setup Specify MSN Power adapter 21, 27NetBIOS LAN to LAN coupling 17, 18, 19, 34Voltage switch WAN data VPN client WAN status Switch Settings Stateful Inspection TelephoneOnline Power 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.
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