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Layer 4 Protection Modes

Layer 4 protection focuses on network protocol-level attacks (TCP, UDP, ICMP) and offers two operating modes:

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Sensor Mode

  • Reactive Protection: Activates full mitigation only when an attack is detected
  • Low Latency: Minimal impact on normal traffic during peacetime
  • Quick Response: Automatically engages filtering within 5 seconds of attack detection
  • Resource Efficient: Optimal for services sensitive to latency
  • Smart Recovery: Gradually returns to normal operation after attack subsides

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Always-On Mode

  • Proactive Protection: Continuously filters all incoming traffic
  • Maximum Security: Provides constant scrutiny of network packets
  • Immediate Defense: No activation delay since filtering is always active
  • Consistent Performance: Maintains steady protection level regardless of traffic patterns
  • Advanced Protection: Recommended for critical services or frequent attack targets

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Layer 7 Protection Modes

Layer 7 protection targets application-level attacks (HTTP floods, slow loris, etc.) with similar operational options:

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Sensor Mode

  • Threshold-Based: Activates when abnormal HTTP request patterns are detected (You have to set it via Firewall Panel)
  • Browser Validation: Issues challenges only during suspected attacks
  • Performance Focused: Minimizes impact on legitimate web visitors
  • Rapid Deployment: Full protection engages within seconds of attack detection
  • Adaptive Response: Protection intensity scales with attack severity

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Always-On Mode

  • Continuous Verification: Every request undergoes validation
  • Bot Prevention: Consistently blocks automated attack tools
  • Deep Inspection: Examines request parameters and behaviors
  • Persistent Protection: Maintains defensive posture at all times
  • Challenge-Response System: May include CAPTCHAs, JavaScript, Button challenges for suspicious traffic

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Configuration via Firewall Panel

All protection modes can be customized through your Firewall Panel:
  • Switch between modes with a single click for each protected IP
  • Set custom thresholds for Sensor Mode activation
  • Configure specific filtering rules for each protection layer
  • View real-time effectiveness of your current protection settings
  • Save different profiles for various scenarios
Mode Pn