Broken Link Fraud in DSDV routing - Detection and countermeasure

Abstract

Routing protocols employed in Mobile Ad Hoc Networks (MANET) lack security mechanisms. Vulnerabilities in protocols are exploited by malicious/compromised nodes to launch attacks.Consequently network performance is degraded. 'Broken Link Fraud'is a Denial of Service (DoS) attack launched against Destination Sequence Distance Vector (DSDV) Protocol. Malicious node announces a 'broken link'to victim node. Honest nodes in the network are fooled into believing that route to victim does not exist. Network performance in terms of Packet Delivery Ratio (PDR) is severely affected. In this paper, we propose a countermeasure for the attack. Our method has an advantage that it does not rely on cryptographic techniques. It is suitable for resource constrained MANETs. Simulation results confirm the effectiveness of our technique in improving PDR. © 2011 Springer-Verlag.