Geographic routing has become one of the most suitable routing strategies in wireless mobile ad hoc network mainly due to its scalability. That is because there is no need to maintain explicit routes.Geographic routing protocol optimize the routing path according to the topology change. The principle approach in geographic routing is greedy forwarding. if it fails if a node with no neighbor closer to the destination than itself, so recovery forwarding is used.These two protocols adopt different schemes to obtain and maintain local topology information on data traffic demand. Geographic routing is a routing principle that relies on geographic position information.It is mainly proposed for wireless network and based on the idea that the source sends a message to the geographic location of the destination instead of using the network address. Geographic routing requires that each node can determine its own location and that the source is aware of the location of the destination.With this information a message can be routed to the destination without knowledge of the network topology or a prior route discovery.