Mobile Ad-hoc NETworks (MANETs) are independent and self organized networks and it does not have any infrastructure and frequently changing their topology. The nodes acts as router and communicate with each other. Much effort has been put into the improvement of routing protocols for route discovery and preservation for the nodes in a MANET to communicate. The researchers in the routing area assume that all the nodes in the network are already configured to have unique IP address in the network. Dynamic address allocation and management is a very critical problem in MANETs.