hp Z220 duplicated Mac-Addresses (+50 devices)

[NLan0]

I have more than 50 devices ( Z220 Workstation) and all of them with the same Mac-Address..!

What shall I do with this problem ?

[AlHill]

Who setup/imaged these devices?

Doc

[NLan0]

No one touched them yet..

All devices show in the bios config screen that the Mac-Address is 88:88:88:88:87:88

NO Systems were installed yet

All devices Are second hand

[AlHill]

I would contact the source/supplier to find out why all have the same MAC.

Doc

[NLan0]

Actually I do not know who is the source/supplier.

[AlHill]

Sounds to me like someone incorrectly flashed the device, or it is due to an HP bios update.

Whatever the case, each system should have a sticker or some information on the board to indicate the mac address for that board. Use the EEUPDATE tool to correct each board.

You have a lot of work to do.

Doc

[NLan0]

I did some search and I found that solution, I will give it a try.

Thanks a lot for your consideration.