Lancom Systems What can your LANCOM do?, LANCOM 821 ADSL, LANCOM 1621 ADSL, LANCOM 1711 DSL

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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