Does FreeBSD issue messages about MAC/IP conflicts?

[Andresen, Jason R.]

>From: owner-freebsd-hackers at freebsd.org [mailto:owner-freebsd-hackers at freebsd.org] On Behalf Of Outback Dingo
>
>my curiousity is howd he get duplicate mac addresses
>

The most common cause that I've seen is duplicating virtual machines and not telling VMWare (or whatever you use) to re-jigger the virtual MAC address.