Vehicular Ad hoc Network (VANET) is the technology of building a robust Ad-Hoc network between mobile vehicles. A major application of VANET is safety warning. Broadcasting of safety messages requires an effective broadcast mechanism. Typically, selection of the probe node is the major problem in VANET broadcasting. The process of the probe node selection and broadcasting of safety messages must be achieved in a limited time. Meanwhile, the transmission reliability must also be preserved. Multi behavior and Reliable Broadcast (MRB) protocol is especially designed for an optimum performance of safety applications and addresses these constraints.