Design and implementation of dynamic virtual network Facing up complex and various Hacker’s attacking, a new approach of constructing the dynamic and adaptive virtual network based on virtual honeypot and network scanning is presented in this paper to puzzle adversaries, delay and divert attacks from their real targets, exhaust attacker resources, and collect the attacking information. Firstly the elementary concepts of honeypot and Honeyd is examined, then the techniques of network scanning used in the virtual network system are analyzed especially the active TCP/IP stack fingerprinting, and then this dynamic and adaptive system is designed and implemented, furthermore the virtual network is comprehensively tested, the experimental results prove this design can simulate the real network environment successfully.