Well, First of all thanks for your kind responses.
Now... I've tried both. First read the examples at the bwi man page (I didn't know it existed
never tried xD).
I edited the hostname.bwi0 file accordingly and ran sh netstart.
It didn't work well. After the sh netstart I got a bwi0: no link ..... sleeping.
After that I typed dhclient bwi0 and got the same output.
What am I doing wrong, or missing?
Thank you!