This document is a technical report detailing the simulation of sinkhole attacks within the AODV (Ad hoc On-Demand Distance Vector) protocol using the NetSim Standard software. It outlines the nature of sinkhole attacks, where a compromised node advertises false routing information to intercept and manipulate network traffic. The report describes a real-world scenario involving a small ad-hoc network and illustrates how a malicious node can disrupt communication between devices. The document provides a step-by-step guide for simulating these attacks in NetSim, including code modifications and configuration settings necessary for the simulation. It also discusses the implications of such attacks on network performance, particularly the impact on application throughput as a result of data packet loss caused by the malicious node. The report concludes with an analysis of the simulation results, highlighting the effectiveness of the sinkhole attack in compromising network integrity.