arpwatch questions appropriate here?

[Kurt Buff]

All,

It's been a while since I tried arpwatch on FreeBSD, and it looks as
if it still has some important limitations.

Most important to me, it doesn't seem to like to run on an unnumbered
interface - I'd like to use it to listen on a mirror port on my
switch(es), and can't see how to do that.

Also, I don't see a facility for something like an arpwatch.conf file
(in particular, I'd like to specify known networks, so I can watch for
bogons), though I am able to specify arpwatch_enable and
arpwatch_interfaces in rc.conf, which is nice.

Has anyone here been able to work through these problems?

If there's a better place I should be asking, please let me know.

Thanks,

Kurt