We are glad to inform that we received the “Best scientific contribution award” for our paper on “Teaching Modelling and Analysis of Communication Networks using OMNeT++ Simulator” at the 5th OMNeT++ summit held in Italy, September 2018. The Simulation and Modelling of Communication Networks is a project based learning course offered at the computer science and electrical engineering master programs at TUHH. The following is the abstract of this paper. At the Hamburg University of Technology, Germany, the modelling of communication networks using the OMNeT++ simulator and the INET framework is taught for Master students. Teaching the concepts of simulation and modelling while letting the students obtain a hands-on experience during a 14-week (4h/week) period (single semester) is a challenging task. The diversity of the pre-knowledge of the participating students and the duration of the course are the main challenges that need to be addressed when organising such a course. This paper discusses the structure of this course and the best practices followed. The course adopts a methodology where lectures on concepts are mixed with INET based exercises that begin with simple topics and gradually moving into advanced topics.