In this simple backup scenario, Internet access is realized via a DSL connection. An ISDN connection is defined as a backup in case of failure of the DSL Internet access.
This backup solution can be quickly and easily set up with the help of the LANconfig Setup Wizard, for example. A further degree of security is available by defining another Internet provider in addition to the standard provider. This solution caters for the contingency where the provider's network fails and the problem is not caused by the DSL connection.