Firewall and Network Segmentation in a Manufacturing Facility
Example Technical Project Scenario
Example project scenario for firewall renewal, VLAN segmentation, secure remote access, VPN, endpoint security and controlled migration in a manufacturing facility.
Typical Starting Point
The production network, office users, IP cameras, guest network and remote access may have grown within the same security zone. This can reduce visibility and expand the impact of a security incident.
Technical Solution Approach
The current topology, critical production devices, internet links, VPN connections and access requirements are analyzed. New firewall capacity is sized; VLANs and security zones are created; NAT/VPN policies are migrated in a controlled manner and required security services are enabled.
Technical Components in Project Scope
- Production / office / guest / IP camera VLAN separation
- Zone-based firewall policies on the NGFW
- Site-to-site and remote-access VPN
- MFA and controlled administrative access
- Endpoint security with EDR/XDR
- Configuration documentation before and after changes
What Is This Architecture Intended to Achieve?
The objective is to improve network visibility, reduce unnecessary access, control remote access and create a layered design that can help limit the blast radius during an incident.
Related Services and Solutions
How This Scenario Was Prepared
Doz Teknoloji Technical Team
This illustrative technical scenario is based on evaluation criteria used by Doz Teknoloji when planning enterprise IT and infrastructure projects.
About Doz TeknolojiTechnical Criteria + Primary Sources
The scenario was reviewed against NIST ICS security guidance and CISA segmentation practices for OT/IT separation, security zones, DMZs and controlled communications.
Improve Decision Quality
To demonstrate how segmentation decisions can be reasoned about in manufacturing networks without presenting the page as a real customer case.
Content and primary sources were reviewed again.
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