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Traffic between internal hosts is inspected by IPS Blade despite the 'Protect internal hosts only' setting being enabled
Symptoms
  • SmartView Tracker shows logs that traffic between internal hosts is inspected by IPS Blade despite the 'Protect internal hosts only' setting being enabled (Security Gateway object - 'IPS' pane).

  • Traffic between internal interfaces is dropped by IPS.
Cause

If you select 'Protect internal hosts only', then Security Gateway protects only the internal network.

This means, that all traffic targeted to internal hosts will be inspected, including traffic from internal sources.

In addition, if a network object that is protected by one of the protections of 'Server/Client' Type, is attacked, then IPS inspects the internal to external traffic as well.


Solution
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