Abstract: Comprehensive networking experiment is one of the important contents of computer network experiment teaching. These projects have real application background and strong practicality. They can cover the basic knowledge of computer network, especially the ability to inspect students’ IP address planning and understanding, and can effectively cultivate students’ flexible and comprehensive practical ability. The experiment is implemented by Packet Tracer simulator, involving knowledge points such as network logic planning and design, VLAN communication, routing and switching, NAT address translation, etc. The equipment configuration method is given, and the results are verified. Through this experiment, students deepened their understanding of relevant knowledge points such as subnet masks, virtual local area networks, and network address translation, and students' learning initiative and motivation have improved.