A method and a system for creating a communications link between at least two mobile network nodes. A first and a second interface administration module generates look-up tables including available network interfaces of the corresponding mobile network node. Configuration data of the corresponding mobile network node is transmitted to a central unit. Configuration data is transmitted from the central unit to at least one of the mobile network nodes, based on the configuration data. At least one signalling channel is created for transmitting further configuration data via one of the available network interfaces, and, based on the configuration data, at least one data channel is created via one of the available network interfaces.