A black hole attack in ad hoc network refers to an attack by malicious nodes, which forcibly
acquires the route from a source to destination by falsely advertising shortest hop count to
reach the destination node. In this paper, we present a Modified Dynamic Source Routing
Protocol (MDSR) to detect and prevent selective black hole attack. Selective black hole
attack is a special kind of black hole attack where malicious nodes drop the data packets
selectively. We proposed an Intrusion Detection System (IDS) where the IDS nodes are set …

Black hole attack on a MANET refers to an attack by a malicious node, which forcibly
acquires the route from a source to a destination by the falsification of sequence number and
hop count of the routing message. A selective black hole is a node that can optionally and
alternately perform a black hole attack or perform as a normal node. In this paper, several
IDS (intrusion detection system) nodes are deployed in MANETs in order to detect and
prevent selective black hole attacks. We proposed an Intrusion Detection System (IDS) …