Mobile ad hoc networks (MANET) have promised a wide variety of applications. However, they are often deployed in potentially adverse or even hostile environments. The mobile nodes are exposed to various kinds of attacks and most of the times the intruders get into network, in order to hold illegal authority over the nodes. Multimodal biometric technology provides potential solutions for continuous user-to-device authentication in high security mobile ad hoc networks. Intrusion detection is considered as the prevention based approach for securing the MANETs. This paper aims to classify various intrusion detection techniques used in MANETs. Also this paper showcases process of continuous authentication through multimodal biometric technique.

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Mobile Ad Hoc Networks Intrusion Detection Multimodal Biometrics Intruders