http://bugs.winehq.org/show_bug.cgi?id=16768
--- Comment #2 from Ole Rasmussen eluminex@gmail.com 2009-01-05 13:17:30 --- (In reply to comment #1)
Yep, that's a bug. The difficulty is that sending ARP requests (and getting their replies) requires root privilege in Linux, which is something we rather discourage with Wine.
I understand that, but shouldn't it be implemented so users can choose for themselves whether to use it (as root) or not?