| 摘要 |
PURPOSE: A multiple network linking device using virtualization and a method thereof are provided to minimize a malicious invasion possibility by blocking unpermitted data between an external network and an internal network. CONSTITUTION: First to third virtual machines(130,150,170) is installed while a starting point communication network and a destination communication network are not connected with each other. If data received from the starting point communication network is permitted on a preset policy, a virtual communication channel is formed between the virtual machine connected with the starting point communication network and the virtual machine connected with the destination communication network. Communication is performed only for the permitted data through the virtual communication channel. The data is transmitted from the starting point communication network to the destination communication network. [Reference numerals] (100) Network linking device; (110) Virtualization driving unit; (130) First virtual machine; (150) Second virtual machine; (170) Third virtual machine; (300) Control console; (500) External network; (700) Internal network; |
