I have a related issue with NAC logging. Whenever an end system ages out, its MAC address gets logged in an event. However, regardless of the Netsight settings mentioned above, the MAC in the event logging will always be in OUI format.
"Removed Aged End-System for MAC: BROADCOM CORPORATION:AB:12:EF"
This is quite sad because it hinders you to process them automatically (for example to remove DHCP reservations, etc).
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