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Intrusion Detection System in Mobile Adhoc NETworks : Er .

In recent years, the use of mobile ad hoc networks (MANETs) has been widespread in many applications, including some mission critical applications, and as such security has become one of the major concerns in MANETs. Additionally, the limited processing power and battery life of the devices used in a MANET also prevent the adoption of heavy-duty cryptographic techniques. While traditional misuse-based Intrusion Detection Systems (IDSes) may work in a MANET, watching for packet dropouts or unknown outsiders is difficult as both occur frequently in both malicious and non-malicious traffic. Mobile Ad-hoc Networks (MANETs) pose unique security requirements and challenges due to their reliance on open, peer-to-peer models that often don’t require authentication between nodes. In this paper, we classify the architectures for intrusion detection systems (IDS) that have been introduced for MANETs. Current IDS's corresponding to those architectures are also reviewed and compared.