I was unable to change the MAC address of the Wi-FI device on a MacBook Air (M1 2020) running macOS Sequoia due to the following error: ifconfig: ioctl (SIOCAIFADDR): Can't assign requested addres.
By running the commands in following sequence I was able to change it successfully:
networksetup -setairportpower en0 onifconfig en0 ether <mac-address-here>networksetup -detectnewhardware
I found that ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address because that my MacBook still connect to wifi. Just disconnect and run sudo ifconfig en0 ether <mac-address-here>, no error exist.
Following has been tested working on M4 macbook with macOS sequoia:
First, disassociate from the wifi AP you were connected to.
Run ifconfig to change the MAC:
sudo ifconfig en0 ether <your-desired-mac>
the command should run w/o error.
You can now see the newly set MAC address in:
sudo ifconfig | less # search en0 to quickly locate the interface
Typically, the WiFi interface is en0. If not, you can get the correct interface when connected to an AP, during which ifconfig shows ip address that the desired interface is using, which is typically prefixed with 192.... With this, you can find the interface accordingly.
this gives me the same permission denied error as stated earlier in the thread...
this gives me the same permission denied error as stated earlier in the thread...
@limitay Considering you didn't use quote, are you trying my approach? If yes, do you have the WiFI switch disabled? The switch shouldn't be disabled, simply disassociate the AP you were connected to.
If you change en0 to en1 I noticed it bypasses things such as Internet parental controls. But if you use en0 it doesn't work. Is this because en0 is the ethernet Mac address and en1 is the WIFI MAC address?