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For Lumeta 4.4 and earlier releases:
Devices are active when Lumeta has received any attribute or response for an IP. This means that the "dns" scantype will continue to mark a device as active for as long as we can look it up in DNS even if it's not answering up to Host or Path.

  • DNS - Affects whether a device is "active" or not
  • New vs existing device - We will mark new or existing devices as "active" if we get a response from that device's IP address (or one of it's child IPs) for any scan type 
  • Discovery scan - These will update "active" as the primary scan types are Host or Path
  • SNMP - arp/neighbor table - This will not update a device's "active" state

For Lumeta 4.5 and later releases:
Devices will be marked active (and have their lastobserved time updated) for any response from that device that isn't for the following scan types:

  • DNS - As of 4.5, DNS will not affect whether a device is "active" or not
  • indirectSnmp (available in 4.5 for things we discover from VMware servers when we interrogate them via SNMP)
  • New vs existing device - We will mark new or existing devices as "active" if we get a response from that device's IP address (or one of it's child IPs) for any scan type that isn't DNS or indirectSnmp
  • Discovery scan - These will update "active" as the primary scan types are Host or Path
  • SNMP - arp/neighbor table - This will not update a device's "active" state
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