A method for establishing a service specific configuration of end-to-end Quality of Service, QoS, wherein a client device is adapted to be connected to a data network and supports a plurality of different services, and wherein the data network comprises a service management server, said method comprising the steps of: sending, by the client device, a request message to the service management server, the request message comprising a service configuration request for one of the plurality of services, selected by the client device, receiving, by the client device, an acknowledgement message from the service management server, the acknowledgement message comprising the service configuration requested by the client device and information regarding service specific end-to-end QoS configuration for the selected service, wherein the service configuration information from the service management server comprises a destination address being associated with the requested service configuration, and the end-to-end QoS configuration information in the service configuration information from the service management server comprises a QoS value for the selected service being associated with the destination address, and to any intermediate node (110, 120, 130) in the data network between the client device and the destination address; and configuring, by the client device, the selected service in the client device according to the QoS value from the service management server, thereby enabling the selected service to have service specific configuration of end-to-end QoS starting from the client device, continuing at any intermediate node (110, 120, 130), and ending at the destination address, wherein the request message comprises a configuration request regarding multiple services, and wherein the acknowledgement message comprises a respective service configuration for each requested service and wherein each service configuration is service specific. sending, by the client device, a request message to the service management server, the request message comprising a service configuration request for one of the plurality of services, selected by the client device, receiving, by the client device, an acknowledgement message from the service management server, the acknowledgement message comprising the service configuration requested by the client device and information regarding service specific end-to-end QoS configuration for the selected service, wherein the service configuration information from the service management server comprises a destination address being associated with the requested service configuration, and the end-to-end QoS configuration information in the service configuration information from the service management server comprises a QoS value for the selected service being associated with the destination address, and to any intermediate node (110, 120, 130) in the data network between the client device and the destination address; and configuring, by the client device, the selected service in the client device according to the QoS value from the service management server, thereby enabling the selected service to have service specific configuration of end-to-end QoS starting from the client device, continuing at any intermediate node (110, 120, 130), and ending at the destination address, wherein the request message comprises a configuration request regarding multiple services, and wherein the acknowledgement message comprises a respective service configuration for each requested service and wherein each service configuration is service specific.