A method for determining a configuration of an interface which is an integral part of a network component in a network and to which any data flow for an administration access to the interface takes place via at least one activation server, a) wherein a wired data connection is created between the interface and an intermediary device via an Ethernet interface of the intermediary device, wherein the intermediary device has read-only access to the interface of the network component via the wired data connection, b) wherein the intermediary device reads out localization information assigned to the interface of the network component via the wired data connection, c) wherein the localization information which is read out is transmitted by the intermediary device via a mobile phone interface of said intermediary device and at least partially by a mobile phone network of at least one communication network to a central communication system arranged in the communication network and further via the central communication system to the at least one activation server, d) wherein each activation server determines whether the network component, the interface whereof is assigned localization information transmitted to the respective activation server, can be reached by the activation server in each case, e) wherein the activation server which has determined that the respective network component can be reached by this activation server accesses the network component with an administration access and retrieves configuration information which is assigned to the network component and the interface from the network component, and f) wherein the retrieved configuration information is transmitted starting from the network component via the respective activation server, further via the central communication system and the communication network and further via the intermediary device to an end-user device which is in contact with the intermediary device by means of a radio connection and supplied by said end-user device. a) wherein a wired data connection is created between the interface and an intermediary device via an Ethernet interface of the intermediary device, wherein the intermediary device has read-only access to the interface of the network component via the wired data connection, b) wherein the intermediary device reads out localization information assigned to the interface of the network component via the wired data connection, c) wherein the localization information which is read out is transmitted by the intermediary device via a mobile phone interface of said intermediary device and at least partially by a mobile phone network of at least one communication network to a central communication system arranged in the communication network and further via the central communication system to the at least one activation server, d) wherein each activation server determines whether the network component, the interface whereof is assigned localization information transmitted to the respective activation server, can be reached by the activation server in each case, e) wherein the activation server which has determined that the respective network component can be reached by this activation server accesses the network component with an administration access and retrieves configuration information which is assigned to the network component and the interface from the network component, and f) wherein the retrieved configuration information is transmitted starting from the network component via the respective activation server, further via the central communication system and the communication network and further via the intermediary device to an end-user device which is in contact with the intermediary device by means of a radio connection and supplied by said end-user device.