A method of communication between vehicle-mounted communication equipment or a vehicle and a plurality of roadside units includes: in a first step, a first vehicle communication message is transmitted from a first roadside unit to the vehicle-mounted communication equipment or to the vehicle, wherein the first vehicle communication message contains a first piece of token information; and in a second step, which follows the first step, a second vehicle communication message is transmitted from the vehicle-mounted communication equipment or the vehicle to a second roadside unit, wherein the second vehicle communication message either comprises the first piece of token information or wherein the second vehicle communication message comprises a second piece of token information that is generated or modified by the vehicle-mounted communication equipment or in the vehicle on the basis of the first piece of token information received previously.