The Hirschmann EAGLE40-6M is a next-generation firewall designed for onboard railway rolling stock environments, offering real-time traffic monitoring and deep packet inspection (DPI). It meets stringent certifications such as European Norm (EN) standards and supports industrial communication protocols. The firewall is ruggedized to withstand harsh conditions like shock, vibration, and electromagnetic interference. It integrates with CylusOne software for intrusion detection, ensuring multi-level cybersecurity across rolling stock fleets. The EAGLE40-6M also supports secure data encryption and dynamic routing, aligning with international standards to protect onboard systems effectively.