A method and a system for forming a network of network devices, the method including providing a plurality of network devices in a physical environment, each of the plurality of network devices being controllable by a mobile network module connectable to the network devices. A network configuration device with a memory unit for storing device configuration data connects a mobile network module to the network configuration device. The mobile network module reads out the device configuration data stored in the memory unit of the network configuration device. The mobile network module connects to a network device and configuring the network device, based on the device configuration data.