Why the MAC address is dynamic?

Please tell me why the MAC address is dynamic?
why not static ?

thanks.

If you burn an IDB inside of the board ,the MAC address will be static .
All of the board both have not burn IDB , so it will set an dynamic MAC.
You can set an file to save the first MAC address , when you turn on the board next time , read the last saving file and set into the board.

you can modify “drivers/net/ethernet/rockchip/vmac/rk29_vmac.c” this file to set an static MAC address ,
or code a funtion what i replied .

RKTools/UpgradeDllTool_Release_v1.3.tar.gz this is a tool to burn IDB

leung先森 发表于 2014-11-17 20:19
RKTools/UpgradeDllTool_Release_v1.3.tar.gz this is a tool to burn IDB

你好,有没有研究过IDB数据保存在哪里,怎么在代码中写IDB数据?