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MANET is a well known network in which wireless nodes are connected. This is also known as infrastructure less network. MANET might have colluding nodes in the network environment. The colluding nodes cause internal attacks in the wireless network. These results in security problems in the network and finally the MANET performance will go down or even the network breaks down. To overcome this problem, this paper presents mechanisms to detect colluding nodes and defend them. The proposed algorithm works on route detection trust management for the purpose of detecting colluding nodes and defending them from causing internal attacks.
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