A method is provided for emulating a physical interface of a device capable of communicating in a network. The physical interface is capable of receiving at least one piece of peripheral equipment. The method includes: pre-association in order to establish a set of possible associations between the physical interface and at least one software interface of at least one terminal; selecting an association between the physical interface and at least one software interface of at least one terminal, from all the possible associations; routing the messages between the physical interface and the associated software interface.