A Mobile Ad-hoc Network (MANET) is an independent and self-configurable network without any fixed infrastructure. Compared to traditional network, MANETs have unique characteristics such as wireless shared radio medium, limited communication range, highly dynamic topology, power constraints and lack of trusted centralized authority. In addition to ensuring confidentiality and fidelity of acquired data, there is a demand for smooth transmission of information throughout the network. This requires unscathed service and continuous availability of network resources for the full duration of the network's operation. In contrast to this crucial objective of MANET management, a Denial of Service (DoS) attack targets to jeopardize the efficient use of network resources and disrupts the essential services in the network. Because of the wide range of methods used for creating a denial of service situation in the network, DoS attack could be considered as one of the major threats against MANET security. This paper aims to classify DOS attacks on MANETs, which are primarily performed on network and lower layers. Counter measuring techniques of these DOS attacks are also presented.
Organizations relying on the Internet face significant challenges to ensure that their networks operate safely and that their systems continue to provide critical services even in the face of attack. This article seeks to help raise awareness of some of those challenges by providing an overview of current trends in attack techniques and tools.
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