The Honeynet is a kind of active defense mechanism, provides an effective method to solve the problem of network security. In this paper, we deploy virtual honeynet in campus network by using the honeypot technology, so that we can control, capture and analysis the honeynet data. We gather information about the attacker much better by accessing the Honeynet. We also study and analyze the attack tactics, attack motivation and the corresponding attack strategy, reducing the probability of attack by hackers or Trojans for the campus network.