Invention Grant
US08644309B2 Quarantine device, quarantine method, and computer-readable storage medium 失效
隔离设备,隔离方法和计算机可读存储介质

  • Patent Title: Quarantine device, quarantine method, and computer-readable storage medium
  • Patent Title (中): 隔离设备,隔离方法和计算机可读存储介质
  • Application No.: US13240369
    Application Date: 2011-09-22
  • Publication No.: US08644309B2
    Publication Date: 2014-02-04
  • Inventor: Keisuke Fujita
  • Applicant: Keisuke Fujita
  • Applicant Address: JP Tokyo
  • Assignee: NEC Corporation
  • Current Assignee: NEC Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Sughrue Mion, PLLC
  • Priority: JP2010-221558 20100930
  • Main IPC: H04L12/28
  • IPC: H04L12/28
Quarantine device, quarantine method, and computer-readable storage medium
Abstract:
A quarantine device 1 performs processing on a network provided with a VLAN-aware Layer 2 Switch 7. The quarantine device 1 includes a terminal detection unit 11 that, when a single terminal is connected to a specified port of the Layer 2 Switch 7 through a VLAN-unaware hub, detects a connection of a new terminal 4 to the hub, and a switch control unit 12 that, upon detecting the connection of the new terminal 4, configures the specified port as a trunk port and, furthermore, configures a first VLAN, which transfers only Ethernet frames having preset tags attached thereto, and a second VLAN, which transfers only Ethernet frames having no tags attached thereto, on the specified port.
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