Sometimes, I see an unknown ethernet address on my
switch port (Cabletron SmartSwitch6000).
This address is 14:14:14:14:14:14
On my switch port, I have only one PC with one ether card!
and I see this unknown address with the actual one !!!
I have seen in the RFC 1340 but I have found nothing on.
If somebody has a response or a clue, it will be good!