Technical Tip: Re-validation of Device profiling rule does not work for Printers

Description

This article describes that printers are getting validated correctly first time against the Device profiling rule.
However, when the re-validation takes place, an issue is observed.

Example configuration of the unit Profiling rule:

Scope

FortiNAC.

Solution

This can be faced because of the following reasons:

• Ports are closed when the printer is IDLE.
• Checking the auto-power off or similar settings on a printer that results in losing the IP address or closing the ports depending on the method used in the Device profiling rule.
  The ports of the printer might be in some undefined state at IDLE time.
  
  

Debugging.

The following debug will help in this case:

nacdebug -name ActiveFingerprint true