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Duplicate IP address after changing the MAC address with netIF_SetOption

Volter_1122

Hello,

Regarding the Keil documentation, for changing the MAC address we can use the netIF_SetOption function. I configured my STM MCU network like this:

It successfully changed my Mac address but in Wireshark, I saw that it created a duplicate IP address device ( one with the old Mac address "1E-30-6C-A2-45-5F" and the new one with the new Mac address "6a:ad:d5:59:52:19")

I need to know how I can change the MAC address while the old value is being removed(prevent from a duplicate IP)

I appreciate your help.

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