LAN security analysis and design

A computer network is a perfect system of connected and cooperating computers. It forms the basis of many other systems. The aim of the paper is to analyse and propose security for local computer networks. The aim of the analysis is to create a compact overview of the information that is important for understanding the potential risks and threats in computer networks. In the case study, we conducted simulations of attacks. Specifically, we have chosen the most popular attacks, the ARP spoofing and Session hijacking attacks. To perform a simulation, we used two tools, Cain & Abel and Wireshark. After the execution of simulations, we examined the proposal for network safety. The most important factors that need to be addressed when defining LAN security are maintaining confidentiality, integrity, availability of information, and authenticity.