Mobile Ad-hoc network is a network of mobile nodes that within, the mobile nodes, communicate through almost slow links. In an Ad-hoc network, two nodes can communicate with each other if their distance became lower than the minimum of their transmission range. So, sending message between two nodes in such network may need routing between intermediate nodes, therefore, a specific route between such nodes should be considered. In this paper, the reasons of route breakage which are recognized by Location Aided Routing (LAR) protocol will be studied and in the following, we propose a new routing protocol that will reduce the number of exchanged route request messages. Our experimental results show that by using this protocol, the number of nodes which participate in routing operation and also the average time of route discovery will be reduced, considerably.