Communications in automotive field became critical since electronic computers have been embedded in cars to implement safety features. Being a safety component, each of them have to stand some standard of security in order to avoid jeopardizing human lives. For this matter, communications between components in automotive field need to pass a process of validation. The majority of these communications happens on the Controller Area Network. Since its introduction, it has become the most common network protocol used in automotive field. This serial bus system is the main actor of this thesis: here is reported how a test platform has been designed in order to specifically test and stress this protocol.