I checked my account and it 1
MAC address registered, but this not of the WAN port on my Netgate PfSense firewall/
router box. It probably belongs to one of the ONU ports (this is FTTC connection) that my home is connected to. I have switched to other routers (including home Wi-Fi routers like the
Asus AC3200 that can handle multiple WANs) with this connection and there's no authentication done on MAC address. CG NAT IP addresses in the 100.xxx.xxx.xxx range are assigned randomly.