Performance of route optimization in nested NEMO

Network mobility (NEMO) basic support protocol is an extension mobile IPv6. NEMO signaling is performed with extended mobile IPv6 messages. NEMO basic support protocol is concerned with managing the mobility of an entire network, it provides for devices or vehicles which move to another point of attachment to the Internet. NEMO can maintain sessions established nodes between the mobile network and the global Internet after the mobile router (MR) changes its point of attachment. However, NEMO uses a bi-directional tunnel between the MR and its home agent (HA), resulting in a pinball route between 2 nodes. In addition, nested mobile networks will further increase the sub-optimality of routing. This proposed solution decreases packet delay, network resource usage and processing delay. Also, the bi-directional tunnel can be avoided, and the level of nesting mobile networks does not increase packet overhead. This solution only requires modification of the MR.