Packet tracer provides network simulation and visualization. It can be used to enhance and improve the practical knowledge of computer networking principles among students. Moreover, students can design mini- projects with solutions with more innovation and creativity. As with other tools, students are able to understand the use of different networking protocols but they are not able to understand the application of these protocols in the real networks, thus packet tracer can be used to design and configure a network, and understand the application of various protocols. As students can’t access different networking devices, because of the cost, also devices may be damaged and further, movement of packets from source to destination can’t be seen in a real- time, thus by using packet tracer, students can access the virtual network devices any time and no damage can be caused to devices, moreover the movement of packets can be shown by simulations.