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Strange MAC addresses

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Name: Q
Date: November 21, 2002 at 09:52:01 Pacific
OS: All of them
CPU/Ram: Could be better
Comment:

I have been watching MAC addresses on the network and have found a number of them that start with 12. All of the MAC addresses I have seen start with 00. What could be causing this? Maybe VMWare or some other software? Thanks!

-- Q



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Response Number 1
Name: Josh
Date: November 21, 2002 at 21:07:44 Pacific
Reply:

I have not used VMWare, but a MAC address is a hardware address, and I am pretty sure the only thing that can change a MAC address is a router or a managed switch. Of course I could be wrong. Why don't you just use the Ips and computer names to track down the computers in question? Just because all the MACs on the network right now start with 00 doesnt mean they all have to. Maybe someone replaced a few NICs, or added a few computers from a different vendor.


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Response Number 2
Name: Q
Date: November 22, 2002 at 12:43:46 Pacific
Reply:

Well, all of the network cards I have seen (and have heard about online) are those that start with a vendor code of 00:(something). The problem is that these people are stealing IP addresses, and the MAC address are the only way we can track them down...

Anyone know if this some software or if it is a really strange device? How can I find out?

Thanks again!

-- Q


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