Bridged ethernet connection

[xxx (Banned - toxicity)]

Can’t pretend to know how to do that but Google is my friend

In my salad days, when I wanted to do something similiar this was the response -

https://community.roonlabs.com/t/rock-dual-ethernet-primary-port-not-exposed-resolved/26222/16?u=slim_fishguttz

Not exactly the same, but it demonstrates how to setup IP addresses.