Google Home device tracker help config?

Can’t figure out how to get the Google Home device tracker configured properly

googlehome:
  devices:
    - host:192.168.2.27
   device_types: 2

That’s all I have. In the known_devices, it has 192 168 2 27 followed by random ble address and no mac address. How do I know which device is which if there’s no mac address and not even a name? I tried setting device types as 1, but nothing populated in known devices.

How do I actually use Google Home as a tracker? The docs are quite vague. I’m also using Asuswrt and regular bluetooth for tracking.