Abstract: Mapping of an avionic network is obfuscated by interposing a network module between an external-access node and a bus of an avionics network. First and second network maps are generated and loaded on the network module. The network map accessible to the external-access node is changed from the first network map to the second network map, to disrupt any reconnaissance of the avionics network.

Abstract: A method of obfuscating mapping of an avionic network is disclosed, including operatively coupling a network module between an external-access node and an avionics bus, with all communications between the external-access node and the avionics bus passing through the network module. The method further includes generating a first network map identifying network addresses for a first set of components on at least a first portion of the avionics bus, loading the first network map on the network module, and making the first network map accessible to the external access node. The method further includes generating at least a second network map different from the first network map and loading the second network map on the network module. The method further includes changing the network map accessible to the external-access node from the first network map to the second network map.