Security is an essential requirement in mobile ad hoc network (MANETs).In this paper, we proposed the survey of countermeasures of all security attacks of network layer in MANETs. To the best of our knowledge, this is the first paper that explaining all the existing countermeasures of network layer attacks in MANETs. The countermeasures are features or functions that reduce or eliminate security vulnerabilities and attacks

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MANET Security attacks Network Layer Network Layer