This document outlines a dissertation seminar on implementing a sinkhole attack in the DSR routing protocol for mobile ad hoc networks (MANETs). It begins with introductions to MANETs and the DSR protocol, explaining their key characteristics and operations. The document then discusses sinkhole attacks, how they work in DSR networks, and their impacts on network performance metrics like packet delivery ratio and end-to-end delay. It proposes using the ns-2 network simulator to model and analyze the effects of sinkhole attacks on DSR routing in MANETs.