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Automotive Ethernet is soon to become the core in-vehicle network. Ethernet brings greater bandwidth and enables new functionality, but it also brings new challenges and legacy-risks from the IT domain.

Sentinel/ETH overcomes these issues by incorporating intrusion detection, firewalling, and an optional prevention system directly into automotive Ethernet networks.

  • Inspect

    Inspect traffic for deviation from allowed rules and baseline
  • Detect

    Detect violations of established baseline or expected behavior
  • Report

    Report and log detected cyber-events for further analysis
  • Discard

    Discard events that are hazardous to safety or functionality


Sentinel-ETH is an SDK integrated into an ECU. It may be an existing ECU such as a gateway, a TCU, or a dedicated ECU attached to the Ethernet network.

Arilou offers flexible implementation modes tailored to meet OEM needs and architectural environments.

  • Learn

    Learn and define rules and communication profile
  • Monitor

    Monitor and examine ethernet traffic routing functions
  • Detect

    Detect deviations from established profile and rules

Benefits and featuresbenefits

  • Optional Prevention

    Optionally discard message frames identified as attacks
  • Flexible Implementation

    Gateway, endpoint or distributed integration
  • High Performance

    Optimized for high performance frame processing
  • Context Aware

    Manages rare event cases including emergency braking and reckless driving
  • Custom Event Reporting

    Report via telematics, cellular SMS, Cellular IP or as specified

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