Title:
強化されたスマートプロセス制御スイッチのポートロックダウン
Document Type and Number:
Japanese Patent JP7414391
Kind Code:
B2
Abstract:
A smart process control switch can implement a lockdown routine to lockdown its communication ports exclusively for use by devices having known physical addresses, enabling the smart process control switch to prevent new, potentially hostile, devices from communicating with other devices to which the smart process control switch is connected. Further, the smart process control switch can implement an address mapping routine to identify “known pairs” of physical and network addresses for each device communicating via a port of the smart process control switch. Thus, even if a new hostile device is able to spoof a known physical address in an attempt to bypass locked ports, the smart process control switch can detect the hostile device by checking the network address of the hostile device against the expected network address for the “known pair.”
Inventors:
Alexandre da Silva Peixoto
paul gruneisen
Nail J. Peterson
paul gruneisen
Nail J. Peterson
Application Number:
JP2018185660A
Publication Date:
January 16, 2024
Filing Date:
September 28, 2018
Export Citation:
Assignee:
Fisher-Rosemount Systems, Inc.
International Classes:
H04L49/00; H04L12/28; H04L12/44
Domestic Patent References:
| JP2010081610A | ||||
| JP2017046149A | ||||
| JP2011182294A | ||||
| JP2006324723A |
Foreign References:
| US20110158248 |
Attorney, Agent or Firm:
Patent Attorney Corporation Shuwa Patent Office
Akira Hirakawa
Hironobu Yazawa
Akira Hirakawa
Hironobu Yazawa