On Sat, 30 Sep 2006 16:49:19 GMT, Duane Arnold wrote:

> "Jette Goldie" <bosslady@scotlandmail.com> wrote in message
> news:1vn85ksiuz92m.16q1rgqxl8v3e$.dlg@40tude.net.. .
>>I have two working PCs with the same MAC address!
>> How do the packets figure out which computer to go to?
>>
>> I have been travelling with two computers for weeks now staying at some
>> German hotels whose wireless ISP sync with the MAC address of the wireless
>> cards on my computers so I used MacMakeUp to make both computers have the
>> same MAC address as I get my home email on my home PC and I get my work
>> email on my work PC. Up until today, I was careful to boot only one
>> computer at a time.
>>
>> I'm currently in a hotel in the UK which has free wireless to any MAC
>> address and I forgot to reset the MAC address on the second PC back to the
>> original. Both computers seem to be working wirelessly.
>>
>> How can that be?
>>
>> How can I have two working PCs with the same MAC address?
>> Why don't the packets get confused as to which computer to go to?
>>
>
> It's because a NAT device such as a router is being used. The router has a
> DHCP server that issues an unique IP to each NIC requesting that an DHCP IP
> be issued to it.

Hi Nat,
Does this mean that each computer gets TWO unique addresses?
The MAC and the IP.

Are you saying that even though the MAC address is the same, that the
combination of Mac + IP address is different because the IP addresses are
different?