The Research of Detecting and Mitigating Gray Hole Attacks in MANET Based on Modified Dynamic Source Routing Protocol
Wen Cong-yua · Science Technology and Engineering · 2014
For the issue that wireless mobile ad-hoc networks are attacked by black hole,an improved dynamic source routing protocol to detect and prevent the black hole attack was proposed. Firstly,the establishment of a intrusion detection system whose nodes detected only when the black hole node as promiscuous mode set been pour into. Then,forwarding data packets by detecting the difference between the number of nodes abnormality detecting malicious node when an abnormality is detected,IDS blocking nearby node broadcasts a message informing the network nodes on a common isolate malicious nodes. Finally,we use simulation tools Glomosim to evaluate the effectiveness of the method its average packet loss rate is only 12. 5% and its transmission delay is 0. 116 seconds. Comparison show that proposed method is superior to existing gray hole attack detecting methods.