A modified version of DVR-based multicasting with security

Reverse Path Forwarding based multicasting used in Distance Vector Multicast Routing Protocol (DVMRP) has the major drawback of generating large number of duplicate and prune packets. Use of the concept of pseudo diameter reduces the number of duplicate packets. The reason is that pseudo diameter helps in the reduction of the scope of travel of a packet. In this work a new approach of multicasting with security has been proposed. The concept of pseudo diameter has been extended to further reduce the scope of travel of a packet. Use of this new concept known as super pseudo diameter while multicasting results in significant reduction of the number of prune packets generated; hence, it guarantees even better utilization of network bandwidth.