Old drivers for this device were showing each pair of bytes swapped in
the MAC address of one of my Ethernet cards.
What I see now is 00:02:E3:09:73:C0. What I used to see is
02:00:09:E3:C0:73. The difference came today, when I upgraded the box
from FC2 to FC3.
The "new" MAC address is consistent with a sticker on the card, so I
guess it is the correct one. Also, it agrees with what Windows 9x
reported when I used this card in a W9x box. Apparently FC3 has
cleared up a bug that the driver has had for several years.