Network Segmentation
Flat networks are a liability, and a compliance gap. We design and implement segmentation strategies that isolate OT from IT, limit blast radius, and satisfy NERC CIP electronic security perimeter requirements. From VLAN architecture to micro-segmentation, we build boundaries that actually hold.
How we segment your network
Segmentation is high-stakes infrastructure work. We plan meticulously, implement in phases, and validate every boundary before moving to the next, because a misconfigured VLAN can take down operations.
Current State Assessment
We map your entire network topology, every VLAN, subnet, trunk, and firewall rule. We identify flat network segments, uncontrolled east-west traffic, and IT/OT boundary violations that create compliance and security risk.
Segmentation Strategy Design
Based on your traffic flows, compliance requirements, and operational needs, we design a segmentation strategy that isolates critical systems without breaking the applications and workflows your team depends on.
VLAN / Zone Architecture
We design the complete VLAN and zone architecture, assigning purpose-built segments for IT, OT, DMZ, management, guest, and SCADA traffic with clear inter-zone policies and logging requirements.
Implementation
Our engineers implement the segmentation plan in planned maintenance windows, configuring switches, firewalls, and routing infrastructure with rollback procedures at every stage to ensure zero unplanned downtime.
Validation & Testing
Every segment boundary is validated through controlled testing. We verify that inter-zone traffic follows designed policies, that critical applications function correctly, and that no bypass paths exist.
Documentation
You receive complete documentation, network diagrams, VLAN assignments, firewall rule matrices, and compliance mappings, ready for your auditors and your team's ongoing maintenance.
What we deliver
Flat Network Elimination
Systematic decomposition of flat, unsegmented networks into purpose-built security zones with controlled inter-zone communication paths.
IT/OT Boundary Creation
Design and enforcement of a hardened boundary between corporate IT and operational technology networks, the most critical segmentation in any critical infrastructure environment.
VLAN Architecture Design
Complete VLAN topology design including management VLANs, voice VLANs, IoT segments, and purpose-built OT zones with appropriate spanning tree and trunk configurations.
Micro-Segmentation
Where appropriate, we implement micro-segmentation to isolate critical assets at the workload level, limiting lateral movement even within a compromised zone.
Inter-Zone Firewall Rules
Least-privilege firewall policies governing all traffic between security zones, with application-aware inspection and logging for forensic and compliance purposes.
NERC CIP ESP Compliance
Segmentation designs that satisfy NERC CIP Electronic Security Perimeter requirements, with documented boundaries, access points, and monitoring controls.
Testing & Validation
Rigorous validation of every segment boundary using controlled traffic tests, ensuring policies work as designed and no unintended bypass paths exist.
Auditor-Ready Documentation
Complete documentation package including network diagrams, VLAN matrices, firewall rule sets, and compliance mappings, ready for NERC CIP audits and internal review.
The right team for your segmentation project
We've Segmented Dozens of Critical Networks
Every network is different, different SCADA vendors, different WAN topologies, different legacy constraints. We've navigated all of them and we know what works in the real world.
Zero-Downtime Implementation
Segmentation projects fail when they break production applications. Our phased implementation approach, rollback procedures, and extensive pre-testing ensure your operations never skip a beat.
We Don't Leave Until It's Documented
Segmentation is only as good as its documentation. We deliver complete, auditor-ready documentation and train your team to maintain the architecture we build.
Ongoing Visibility Through TITAN
Every segmentation project integrates with TITAN for ongoing monitoring of inter-zone traffic, policy violations, and segmentation bypass attempts, giving you persistent visibility.
Ready to eliminate your flat network?
Segmentation is the foundation of defensible architecture. Let our engineers design and implement boundaries that protect your organization and satisfy your auditors.