Effects of Black Hole Attack on Different Routing Protocols of MANET under IPv6

<br>Mobile Ad Hoc Network is short lived autonomous network which is formed by collection of mobile nodes connected through wireless links without any fixed infrastructure support. Due to its structure mobile ad hoc network prone to various types of security attacks. Black Hole Attack is one of them security attack. The data packets in black hole attack routed towards node which not actually exists in network it receive and drop all data packets.IPv6 is internet protocol which gains popularity over IPv4 with its certain features like more address space, multicasting, and multihoming.IPv6 is more secure as compared to IPv4. Thus it is essential to study the effects black hole attack of mobile ad hoc network routing protocols in presence of IPv6. This research paper study the effects of black hole attack on AODV, DSR, GRP and OLSR under IPv6 on the basis of certain parameters like end-to-end delay, network load and throughput. For collecting and analyzing results OPNET 14.5 is used. On the basis of observation it found GRP performs better as compared to other routing protocols under black hole attack.