Layer 2

MAC / OUI

Normalise a MAC to every common notation, read its flag bits, and look the OUI up against a bundled list of ~60 common vendors (VMs, Cisco, Apple, Ubiquiti…).

MAC address any separator

Formats

Colon (Unix / IEEE)

00:1d:d9:ab:cd:ef

Hyphen (Windows)

00-1d-d9-ab-cd-ef

Dot (Cisco)

001d.d9ab.cdef

Bare

001dd9abcdef

Analysis

OUI (vendor prefix): 00:1d:d9
Vendor: Ubiquiti
NIC (device) portion: ab:cd:ef
Cast: Unicast
Administration: Universally administered (UAA)