dwepdump -a illegal option

[email protected] Mon, 29 Jul 2002 10:33:30 -0700

Newsgroups	gmane.network.wireless.bsd.airtools
Message-ID	<[email protected]>

Hello,
 I'm executing dwepdump -w -a wi0 logfile
and getting: -a illegal option

Is this correct, do I need to set something up on my:
Compaq M300
Linksys WPC11 (Prism3.0)
OpenBSD 3.1-current
?

<benh>