A mobile ad hoc network (MANET) is a dynamic distributed system of wireless nodes that move independently of each other. However the existing routing protocols produces high cost. To provide High anonymity protection with low cost in MANET, we propose Energy aware greedy forwarding algorithm. Mobile ad-hoc networks have been regarded as a promising path towards future wireless communication landscape. It is important to determine the dependencies between the nodes in Mobile Adhoc Network. Sometimes fault localization may occur. Some dependency discovery methods are used earlier for fixed network. Dynamic dependency discovery method is proposed for achieving the better fault tolerant mechanism which gives better result then existing method. The performance of our method in terms of the accuracy of the discovered dependencies, and draw insights on the selection of critical parameters under various operational conditions.