Topology discovery of PROFINET networks using Wireshark

Industrial communication networks become more complex and real-time networking protocols primarily developed for them become more common in our daily lives as technology evolves. As a result of this, topology discovery and diagnostic mechanisms developed for industrial communication networks come into prominence. One of the most well-known industrial communication networks, PROFINET is the basis of this study. In this paper we present an add-on to Wire-shark for the discovery of the topology of PROFINET networks. Wireshark is a network protocol analyzer tool and to our knowledge this is the first study which uses Wireshark in this context.