Lancom 821+, Руководство пользователя

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LANCOM 821+ – LANCOM 1711+ VPN – LANCOM 1721 VPN
Chapter 1: Introduction
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EN
This is facilitated by splitters which separate the voice frequencies from the
data frequencies.
1.2 What does VPN offer?
For LANCOM
1711+ VPN and
LANCOM 1721 VPN
only
A VPN ( V irtual P rivate N etwork) can be used to set up secure data communi-
cations over the Internet.

The models LANCOM 1721 VPN and LANCOM 1711+ VPN are factory
equipped to support VPN with 5 active tunnels. With the additional
LANCOM VPN Option, VPN support can be extended to 25 active tun-
nels (incl. activated hardware accelerator).
The following structure results when using the Internet instead of direct con-
nections:
All participants have fixed or dial-up connections to the Internet. Expensive
dedicated lines are no longer needed.
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.
The subsidiary also has its own connection to the Internet.
Headquarters
Computers using remote access
Internet
LAN
LAN
Branch office