Main Article Content
One of biggest challenges to implement adhoc network is its dynamic topology and security issue. There are possibilities of active and passive attack in network to alter the authentic data or to steal the data. There are various types of passive attacks which are very dangerous for effective communication. Black hole attack in Vehicular Ad Hoc Network is major problem related with the field of computer networking. In this paper we present the performance analysis of the black hole attack in Vehicular Ad Hoc Network. We elaborate the different types of attacks and their depth in ad hoc network. The performance metric is taken for the evaluation of attack which depends on a packet end to end delay, network throughput and network load. In reference work black hole attack used in network communication using AODV protocol. There are many problems in VANET and specifically security issues. Besides this need a security algorithm which helps to secure our privacy so that unauthorized person cannot access data.