Hindrance and riddance of Gray Hole attack in MANETs multipath approach

摘要

Mobile Ad hoc Network is setup through different individual moving nodes that are the self assertive in the spots without any system foundation. In this kind of network the nodes come in the mobility scope of each other for the communication. Due to lack of infrastructure, impulsive changing topology or open medium, ad hoc network is more vulnerable for attack and provide vulnerabilities for the attacker to become a part of it. To prevent security of mobile ad hoc network various security measures are designed for the riddance of different types of attack. Gray Hole is one type of Denial of Service attack (DOS) that airs a great threat to the ad hoc network environment. For the elimination of Gray Hole, we have proposed a packet update scheme and even advise the elimination scheme by discovering all the malicious nodes. The different performance measurements for network parameters are considered such as throughput and delay.