Isolation
Separate device addressing and no unsolicited inbound internet traffic.
Protecting automation networks
Secure OT remote access to PLCs, HMIs and industrial devices
An access design that separates field devices from the public internet and exposes only approved resources.
Architecture
A private transmission path instead of public ports
Site devices operate inside a private APN and cannot be reached directly from the internet. A service connection is established through a controlled access point and an encrypted tunnel.
Rules define which user can reach a specific subnet, device and service. Remote access does not have to mean unrestricted entry to the entire site network.
Authentication
Access only for identified and authorised users.
Event records
Connection and access activity can be logged.
Process
Security tailored to the actual deployment
Design starts with an inventory of devices, communication flows and people using remote access. Zones, rules and the required connection method are then defined.
IoT M2M does not claim compliance with a standard or regulation without a separate scope assessment. This page describes technical mechanisms, not certification of the client's entire environment.
- Identify devices, users and required protocols.
- Design private addressing, routes and connection points.
- Configure authentication, roles and access rules.
- Test permitted access and confirm that other paths remain blocked.
Monitoring
Logging and traffic analysis
A deployment can include access and event logging plus traffic analysis for networks reachable through public addresses. The aim is to identify anomalies and unusual connections.
Retention, operational responsibility and incident response are agreed during the project. Monitoring mechanisms do not replace the client's security policies.
FAQ
Frequently asked questions
Is a VPN enough to protect a PLC?
A VPN protects the tunnel, but security also depends on authentication, segmentation, access rules, updates and user management.
Is the PLC visible from the internet?
Not in a typical IoT M2M deployment. The controller remains in private addressing and access runs through a controlled point.
Can access be limited to one device?
Yes, provided that the architecture and protocols allow sufficiently precise rules.
Does the solution guarantee NIS2 or IEC 62443 compliance?
No automatic compliance is claimed. Compliance requires an assessment of the whole organisation, process and environment beyond the remote connection itself.
Contact
Let's discuss your deployment
Show us the devices, locations and access workflow. We will prepare the connectivity and monitoring design for the first site.
Ask about a demo- E-mailiotm2m@iotm2m.pl
- Phone+48 32 720 20 60
- Addressul. Ks. Fr. Górka 144
43-196 Mikołów