The Internet of Things (IoT) devices can be identified and controlled intelligently irrespective of its location, across the world to develop more easiness to human lives. The IoT devices constantly forward a large amount of data towards sink nodes which requires extensive routing. Thus, routing is an important aspect of the IoT. This paper presents a performance analysis of two well-known routing protocols: (a) Destination Sequenced Distance Vector routing (DSDV), and (b) Ad hoc On Demand Distance Vector routing (AODV) in the Vehicular Ad hoc network (VANET) based IoT environment. Here, we propose a new scenario in which Constant Bit Rate (CBR) sources increases incrementally and reaches half out of the total nodes whereas the other nodes which are kept stationary decreases exponentially. The total number of nodes in the topology remains constant. The CBR source nodes move with variable speed to different waypoints as destinations at different times. The performance of above- mentioned protocols has been analyzed in our new proposed scenario, keeping in view the TCP Reno and UDP. The comparison among these two routing protocols has been done on the basis of delay, jitter, packet dropped ratio, throughput transferred and generated throughput.