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M. Tech · 2014
Security is a major challenge in Mobile Ad hoc Network (MANET) due to their features of dynamically changing topologies, frequent host movement, Multi-hop wirel ess links and lack of clear line of defense. Protecting the network layer of a MANET from malicious attacks is an important and challenging issue. This paper analyzes the black hole attack which is one of the possible atta cks in Mobile Ad hoc Network (MANET). In a black hole attack, malicious nodes advertise itself by sending a false route reply packet to a source node that initiates a rout e discovery process and drops all packets. Ad hoc On-demand Distance Vector (AODV) routing algorithm is used in simulation of black hole attack. Results are analyzed using Netwo rk Engineering Tool NS-2 in CYGWIN environment.