All the nodes in the Mobile ad hoc networks (MANETs) are decentralized with no fixed infrastructure as well as each of them acts as a node, a router and transmit the packets that are not in a range. Because of these characteristics, paths connecting to the source nodes with destinations may very unstable and go down at any time, making communication over ad hoc networks difficult. The Optimized Link State Routing Protocol (OLSR) is an IP routing protocol which is optimized for mobile ad-hoc networks. OLSR is a proactive link-state routing protocol which uses Hello and Topology Control (TC) messages to discover and then disseminate link state information throughout the mobile ad-hoc network. Individual nodes use this topology information to compute next hop destinations for all nodes in the network using shortest hop forwarding paths. In this paper we compared the classic OLSR algorithm with the multipath OLSR. Simulation results show that MOLSR achieves lower delay and higher packet delivery ratio, throughput than the classic OLSR.