Transparent backup IP router in a local area network

摘要

A device (3) is designed to be transparently inserted in a local area network (4) which consists of at least one IP router (2) and at least one local equipment (1), and comprises means of connection (3a) between said device (3) and each one of said local equipments (1) and means of connection (3b) between said device (3) and each one of said IP routers (2). Likewise, the device comprises means of switching capable of establishing a connection between said local equipments (1) and said IP routers (2) in two different modes, namely: a first bridged mode wherein said local equipments (1) and said IP routers (2) are directly connected, and a second processed mode wherein said device (3) acts as back-up router, spoofing said IP routers (2).