Over the weekend I noticed a series of new devices with MAC addresses that I did not recognize (e.g. c2:6e:51:44:eb:66). When I looked closer I find they are all "locally administered" by virtue of bit 1 of the MSB of the address being set. Looking back now I suspect they were all due to recent visitors configuring their mobiles to randomly generate a MAC address on WiFi; the number of such devices matches our visitors and the dates they were detected match when the visitors were here.

It would be convenient to detect and flag such devices so that I do not waste any time trying to identify the device maker in an effort to properly classify the device to determine who it was so I can properly classify them in Pi.Alert.