Fingerprinting hosts, looking for an opensource application

Hi, is there any opensource application that fingerprints internal lan clients? Like on execution returns if host is "new" or "old" with a probability rating. Input to fingerprint app is mac address, dhcp request details and maybe traffic flow details. I'm sure there is commercial options, but how about opensource and DIY? Have anyone done a simple fingerprinting app?

Im running a dnsmasq script on dhcp requests to my home lan, but looking for improving roaming mac clients for tracking individual bandwidth usage. But also for educational reasons.

Ohh found this...

their fingerprinting is a joke... based on oui really... ufp is coming...!;a=summary

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