Real and OPNET modeling and analysis of an enterprise network and its security structures

Abstract

Abstract In this research study, first, a prototype network design as real modeling and using the OPNET software as virtual modeling of a typical enterprise network are constructed and analyzed. On these real and virtual network models, the affects of Firewall and VPN (Virtual Private Network) on network performance are studied. Then a more complex and realistic model than the first simple OPNET model is designed, and on this second model similar analysis work is performed. In this study, another research topic is to investigate application areas and uses of OPNET in communication networks education. What we have done different than the previous research studies and projects in our study is constructing both a real enterprise network prototype and virtual OPNET simulation model, and comparing network models and network analysis results. The affects of Firewall and VPN on these models are studied in both real network devices and virtual OPNET environments. Additionally, practical use of both developed real and virtual models in university education is also taken into consideration.