392 ◾ Security for Multihop Wireless Networks
module to determine if the associated node has been evaluated in the same way by
other trusted nodes. If there exist sufficient evidences about the malignity of the
node, it is notified to the reputation module for the malicious node to be discarded
as a routing alternative.
In [59], a response mechanism is taken in one of two ways: directly or indirectly.
In the first case, each node is in charge of removing a detected malicious node from
its routing table. In the second case, a monitor node will send an alarm message to
the neighborhood. Depending on the amount of alarm messages received at a given
node, it will result in the removal the misbehaving node from its routing table.
e authors in [60