Remote PLC and HMI access is essential for modern industrial automation. This article explains how industrial cellular routers enable secure remote maintenance through VPN, firewall policies, NAT configuration, and reliable cellular connectivity. Learn best practices for connecting PLCs, HMIs, and industrial devices without exposing automation systems directly to the internet.

Can a low-resource LTE router with only 16 MB of flash and 64 MB of RAM reliably support OpenWrt and WireGuard? This article explores the hardware limitations of entry-level routers, including flash storage, memory, CPU performance, VPN encryption, and long-term stability. It also provides practical deployment advice, testing recommendations, and common failure scenarios. Finally, it compares the Wavetel IoT WR143 and WR255 industrial routers as reliable alternatives for indu

Índice Introducción: Por qué los routers industriales se han convertido en nodos críticos de seguridad Los 5 grandes riesgos de seguridad en el despliegue de routers industriales 2.1 Riesgo de acceso no autorizado 2.2 Riesgo de transmisión de datos sin cifrado 2.3 Riesgo de vulnerabilidades de firmware y parches faltantes 2.4 Riesgo de movimiento lateral en redes OT 2.5 Riesgo de incumplimiento normativo (incluido EN 18031) Cómo los dispositivos IIoT pueden cumplir con los re