I was unable to change the MAC address of the Wi-FI device on a MacBook Air (M1 2020) running macOS Monterey 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
Are they both plugged into the same computer? The OS might prevent collisions.
Plugged first copy mac, unplug second one is in thunderbolt dock and try to set it and it is always no go.
will try with random mac to see if it is working at all
no it is not working with random mac too
Same behavior on my TS3 Plus's ethernet port, maybe the TS3 Plus's chipset does not allow for MAC address changes?
I have tried with 3 different cards which I can change mac under Linux, and they are not working under Macos so problem is in Mac. Probably they have enabled only WiFi spoofing.
one thunderbolt doc, usb ethernet from dell and old TB2 mac ethernet all work under linux and I can change MACs
Sorry for late replay but it is not working even with latest script variant. Also strange enough is that it says that interface is Wi-Fi in self detect. But result is same ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
edit: tested on the Macpro Wi-Fi script is working for it, but it is not working for ethernet at all
@phush0 if you are referring to the script I posted, let's move the discussion there. If not, please ignore. :)
config: ioctl (SIOCAIFADDR): permission denied what does this mean?
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?
I am copping from one adapter to other so it have to be valid