ARP flooding has been done before, so i gues it is possible. To my knowledge, most OS's have safeguards against it now; though i may be wrong.

I see in the 'similar threads' section at the foot of this page there is a thread on ARP flooding (http://www.antionline.com/showthread...hreadid=248049), it's an interesting read - might clear up some of your queries. Google returns many results as well.

Regards,