host name

[Carl Karsten]

Hai Tao wrote:
> how can mac address be "not unique"? mac address is global identical, right?

a few ways:

Some drivers allow you to override it.  (you shouldn't, but perhaps you are 
testing something.  I am not saying it is a good idea, just answering your 
question of "how?")

Virtual Machines - which have virtual NICs which were not manufactured in a 
factory that could assign them a Unique ID.  I am not sure how they get their 
MACs, but I am guessing if you create one VM, then copy the files, then run 
both, you will get duplicate MACs. (just guessing, and they may have provided 
for this)

Not that this helps you with your problem, but may be good to know some other time.

btw - "global identical" should be "globally unique"

Carl K