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Mobile Ad-hoc network is a decentralized, self-organizing network. At present trend the MANET become one of the most important wireless communication mechanisms among all other. Unlike traditional network, MANET does not have any fixed infrastructure. Every single node in the network work as both a receiver as well as transmitter and node can communicate without any access point However, due to the mobile infrastructure MANET suffer from the variety of attacks. These attacks occur due to the misbehaviour/selfish nodes which can degrade the network performance. To develop a strong security scheme, the secure route selection is analyzed under varying degree of misbehavior nodes. Eventually AODV(Ad-Hoc on Demand Distance Vector), GRP(Gathering based routing protocol) and OLSR(Optimized Link State Routing) protocol meets the above scheme at different WLAN(Wireless Local Area Network) parameter physical characteristics 802.11a Orthogonal Frequency Division Multiplexing(OFDM) and 802.11g (extended rate PHY) over a range of scenario we analyzed or tested the performance.