VLANs, firewalls, Wireshark captures, protocol ports, IEC 62443, OT segmentation
6 articles in Network & Security
Building Automation Network Diagnostic Toolkit
Essential free tools every BAS technician should have on their laptop.
How to Run a BAS Cybersecurity Audit
Building owners face pressure from insurers and regulations but have no BAS-specific audit checklist.
IEC 62443 Security Zones for Building Automation
IEC 62443 guidance is abstract and manufacturing-focused; BAS professionals need a practical translation.
VLAN Design for Building Automation Networks
IT teams lack guidance on structuring VLANs specifically for BAS protocols and broadcast traffic.
BACnet Firewall Rules: Ports to Open and Block
After network segmentation, BACnet traffic gets blocked by firewalls; technicians need exact port/protocol rules.
Wireshark Display Filters for BACnet
Technicians capture traffic but cannot isolate BACnet packets from general network noise.