The present invention consists of a control system and of administrative localization of data-processing equipment. The goal of this invention is to make it possible to know; in quasi real-time; where (in which building? room? connected on which colonnet you?) and when is connected data-processing equipment on the corporate network and this, it the nature of the equipment does not matter. This system consists of 3 components is : - an interface of connection which allows the connection of the equipment (innovation) (102); - a waiter of reception of data (202); - a software of reception and data processing on the waiter (203); The whole rests on the innovation (interface of connection 102) which consists of an interface network adapted to act as equipment complementary to the real estate of the office which will allow, in a dynamic, automatic way and independently of data-processing equipment, to send to a database (203) on a waiter (202), the following information of inventory : which work station is connected in which office. Consequently, the innovation will be an adapter (102) which can replace the connection network of the wall (103) or connect over. It will receive the cable coming from the interface computer network. This adapter (102) will be programmable manually or automatically via a console. The adapter will be in measurement temporaireme NT to usurp the identity of the equipment (225, 226, 227, 228) that it serves (cec I with an aim of not using new IP addresses and MAC) while going to collect information networks of the post office served such as its IP address and/or its MAC address and/or the name of the station, etc… The whole (addresses IP, addresses MAC, but especially the name of the office or the post, etc…) recurringly will be sent to a waiter (202) with distanc E and stored in a database (203).