Swyx SwyxConnect 1722, Руководство пользователя

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Linking two networks 6-1
6 Linking two networks
With the network interconnection (also known as LAN to LAN
coupling) of the SwyxConnect, two local networks are linked. The
LAN to LAN coupling can be realized in principle in two different
ways:
• VPN : For coupling via VPN, the connection between both LANs
is established over a specially secured connection through the
public Internet. A router with VPN support is required in both
LANs.
• ISDN : For coupling via ISDN, a direct connection between both
LANs is established over an ISDN connection. A router with
ISDN interface is required in both LANs.
6.0.0.1 Always configure both sides
Both routers involved in the network interconnection must be
configured. Care must be taken to ensure that the configuration
information provided matches.
The following instructions will assume that SwyxConnect devices are
being used on both sides. A network interconnection may also be
realized with routers from other manufacturers. A mixed setup
usually requires more extensive configuration measures for both
devices, however. Please refer to the reference manual for more
information in this regard.
A setup wizard handles the configuration of the connection in the
usual convenient manner.
6.0.0.2 Security aspects
You must, of course, protect your LAN against unauthorized access.
A SwyxConnect therefore offers a whole range of security
mechanisms that can provide an outstanding level of protection:
• VPN : Network couplings via VPN transmit data by IPSec. The
data are encrypted by AES, 3-DES, Blowfish or CAST
encryption algorithms.
• ISDN : For network couplings via ISDN, the connection
password, the checking of the ISDN number and the callback
function ensure the security of the connection.