Example scenario
Example scenario: An industrial manufacturing site operated multiple production lines from a shared OT network, with limited separation between SCADA, engineering workstations, historians, and vendor support connections.
Segment
Network Segmentation Engineering
Zones, conduits, architecture drawings, firewall schedules, and migration planning for live industrial networks.
OT network segmentationzones and conduitsfirewall schedule
Placeholder
The problem
Flat or poorly segmented OT networks increase the risk that a compromise of one device, workstation, or vendor connection could affect wider operational systems.
What we do
Activities
- define security zones and conduits
- review existing switch and firewall architecture
- develop industrial network segmentation strategies
- support firewall rule definition
- produce network architecture drawings
- support migration planning
Deliverables
- segmentation strategy
- zone and conduit model
- network architecture drawings
- firewall rule schedule
- migration plan
- residual risk summary
Example scenario
Meridian-style response
Meridian-style response: A revised network model was developed to separate critical control assets, engineering access, data collection, and external connections. The design allowed staged implementation without requiring immediate replacement of all legacy systems.
Related guidance
Continue through related service, problem and resource pages for the same OT cybersecurity topic.
Discuss network segmentation engineering
Book a technical discovery call to discuss the control system, project stage, documentation gap, or assurance requirement without exposing sensitive site or client details.