Design and implementation of hosts quarantine system with cooperation support in LAN

Faced with increasingly serious issue of network security,focus on cutting off the malicious host’s harm,to overcome the shortcomings of malicious host isolation technologies,a hosts quarantine system with cooperation support in LAN is proposed and implemented to quarantine local malicious hosts.The quarantine system can cooperate with the manager and the detection devices who is authorized.When obtaining the malicious host’s IPs,the quarantine system will immediately break up the communication between malicious hosts and the gateway using ARP masquerade technology.Thus the spreading of harm from the LAN to the outside network will be prevented.The results show that the quarantine effect is obvious and the quarantine system makes a minor impact on the LAN.