关键词: 大型局域网, 网络盲区, 资产盲区, 安全盲区, 网络安全

Abstract: This paper proposes the concepts of network blind area, asset blind area and security blind area  as they pretain to the security of large local area networks (LAN).  It analyzes the reasons behind the emergence of these three blind area, describes their forms, and points out their impacts on the security of large LAN. This paper proposes a new perspective for solving the security issues associated with large LAN.

Key words: large LAN, network blind area, asset blind area, security blind area, network security