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What does the firewall setting "use passive detection mode" do?

The new firewall setting "use passive detection mode" that has something to do with the DHCP-traffic makes me clueless of what it really is and what it does. If someone could please explain I would be really happy :)


  • hm1987
    any updates
  • Zboncak69
    edited August 2023

    An IDS can only detect an attack. It will respond after detecting an attack, and IDS responses can be either passive or active. If you’re planning to take the Security+ exam, you should have a basic understanding of appropriate tools and techniques to discover security threats and vulnerabilities.

    edit:link deleted

  • Alexandru_BD


    The DHCP interception is for detecting devices entering the network (example: your home wifi).

    This serves two purposes: 1: vulnerability scanning and 2: if one owns a subscription with free slots and a new device supporting one of our products is connecting into the network, we suggest installing protection on it.

    The new setting - default OFF - is to use only the light detection on DHCP port. Previously more traffic was analyzed but we come up with this split into lighter (OFF) and heavier (ON) device detection - the latter being for certain users running custom DHCP server software on their machines.

    Premium Security & Bitdefender Endpoint Security Tools user