When you need to know your Ethernet-address (as programmed by the Manufacturer during production into your Network-Board ),use :WINIPCFG
It is not in a menu, you need to "run" it manually:
On the Modem/Dialup-Adapter,
no IP-address is pre-assigned,
because it will assigned during
connection to the ISP via DHCP.
Once the Modem has connected,
the IP-address (temporary
assigned by the ISP) is display.