When ethernet wire is unplugged, the interface keeps its IP address and the default route stays up

[Yuri]

When ethernet is unplugged, the interface keeps its IP, and the default 
route stays, so WiFi fails to become functional.

It is necessary to run 'ifconfig {iface} inet remove' before connecting 
to WiFi.


How is this supposed to function, because regular user shouldn't be 
required to run commands by hand?

Why unplugging the wire doesn't bring the interface to its original state?


Yuri