How to change the "STMicroelectronics" string in a network scan?

[JG]

Hi, i'm using a nucleo-144 board with LwIP stack v2.0.3 in a network communication hardware project, most specific a STM32F207ZG. I would like to change the "STMicroelectronics" string that appear in a scan network for a custom string.

Someone have an idea of how to...?

[TDK · Accepted solution]

The "STMicroelectronics" is not a string that is send by the chip, it's retrieved by whatever software is sending you the MAC address info. The 00:80:E1 block of MAC addresses is reserved by ST.

https://hwaddress.com/oui-iab/00-80-E1/

Want something different? Change the MAC to something else.

[JG]

Thanks for the clarification, it was very helpful.

[berendi]

You can obtain a block of MAC addresses from the IEEE Registration Authority (for a lot of $$$) then the name you registered with will eventually turn up in future versions of network scanning tools.

[JG]

Thanks, i'm getting information about it.

[Piranha]

For a globally unique address alternatively you can also use these:

https://www.microchip.com/paramchartsearch/chart.aspx?branchID=7044

For a locally unique address, just respect the simple rules and generate your own addresses:

https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local

[JG]

Thanks for the suggestions and the links, very interesting information.