LANCOM 1811 Wireless DSL – LANCOM 1821+ Wireless ADSL
Chapter 1: Introduction
13
EN
All participants have fixed or dial-up connections to the Internet. Expensive
dedicated lines are no longer needed.
쐃
All that is required is the Internet connection of the LAN in the headquar-
ters. Special switching devices or routers for dedicated lines to individual
participants are superfluous.
쐇
The subsidiary also has its own connection to the Internet.
쐋
The RAS PCs connect to the headquarters LAN via the Internet.
The Internet is available virtually everywhere and typically has low access
costs. Significant savings can thus be achieved in relation to switched or dedi-
cated connections, especially over long distances.
The physical connection no longer exists directly between two participants;
instead, the participants rely on their connection to the Internet. The access
technology used is not relevant in this case: Broadband technology such as
DSL (Digital Subscriber Line) is ideal. A conventional ISDN line can be used,
too.
The technologies of the individual participants do not have to be compatible
to one another, as would be the case for conventional direct connections. A
single Internet access can be used to establish multiple simultaneous logical
connections to a variety of remote stations.
Headquarters
Computers using remote access
Internet
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LAN
Branch office