Comment 13 for bug 1639202

more info, as requested:

ls -la /sys/class/net/*

lrwxrwxrwx 1 0 /sys/class/net/lo -> ../../devices/virtual/net/lo

lrwxrwxrwx 1 0 /sys/class/net/enx847beb55c195 -> ../../devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:0a:00.0/usb3/3-1/3-1:1.0/net/enx847beb55c195

cat /sys/class/net/*/address

84:7b:eb:55:c1:95
00:00:00:00:00:00

so there's no reference to 9c-eb-e8-3c-52-cc, which is the mac displayed via BOOTIF =