Mobile ad-hoc network networks are self organizing, very dynamic network which support data networking without an infrastructure. The proposed protocol provides secure and adaptive backup routing protocol for MANET. Genetic algorithm (GA) is used to find the optimal path from the available multiple paths between source and destination to be used in the case of link failure problems. To improve routing mechanism, we use buffer size, end to end delay and shortest path as the parameters for GA in route discovery. GA allows for selfconfiguration systems and maintains state information about the neighboring network. GA's are able to find, if not the shortest, at least an optimal path between source and destination in mobile ad-hoc network nodes. And we obtain the alternative path or backup path to avoid reroute discovery in the case of link failure or node failure. Furthermore we incorporate self organized key authentication mechanism in order to authenticate every that participates in the network. We use NS-2 simulator to simulate this protocol and we conclude with performance evaluation and comparison with the existing protocol
