Case studies / 01 · Critical infrastructure · Electric utility
Multi-site security overhaul for a regulated utility.
Redesigned power-plant networks from the physical layer up, based on observed traffic and NERC CIP requirements. Replaced systems during planned outages and tested each cutover.
- Sector
- Electric utility · power generation
- Scope
- Plant networks, firewall policy, segmentation
- Platforms
- Check Point · Cisco
- Requirements
- NERC CIP
- 17
- Power plants in the program
- Offline
- Planned-outage cutovers
- L2·L3·L7
- Layers secured
NERC CIP requirements shaped the network controls and cutover tests.
Challenge
Redesign existing power-plant networks around observed traffic and NERC CIP requirements. Schedule each system replacement inside the affected plant's planned outage.
Engineering
Produced Visio designs, staged switches and firewalls, and validated configurations before each outage. Rebuilt Check Point firewall rule bases and introduced new segmentation with Cisco switches. The work covered Layer 2, Layer 3, and application-layer controls.
Replaced systems while each affected plant was offline and tested every cutover.
What was delivered
Network designs, validated configurations, tested cutovers, and technical procedures to support NERC CIP requirements.
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