shilch / macchanger

 Change your mac address, for macOS

macchanger

macchanger for Mac OS - Spoof / Fake MAC address

Installation

sudo sh -c "curl https://raw.githubusercontent.com/shilch/macchanger/master/macchanger.sh > /usr/local/bin/macchanger && chmod +x /usr/local/bin/macchanger"

Usage

Type sudo macchanger:

Usage: sudo macchanger [option] [device]
Options:
 -r, --random         Generates a random MAC and sets it
 -m, --mac MAC        Set a custom MAC address, e.g. macchanger -m aa:bb:cc:dd:ee:ff en0
 -p, --permanent      Resets the MAC address to the permanent
 -s, --show           Shows the current MAC address
 -v, --version        Prints version

Set custom MAC

sudo macchanger -m aa:bb:cc:dd:ee:ff en0

Set random MAC

sudo macchanger -r en0

Reset to permanent MAC

sudo macchanger -p en0

To do

• Option to set MAC address at startup
• Add Manufacturer info

macchanger's Issues

Which command is actually setting the new mac?

I've been through the source and it seems to be networksetup -detectnewhardware. Is that the underlying macos command being run?

macOS Sonoma 14.4 broke macchanger, and ifconfig!? wtfh

I already submitted Feedback to Apple, but figured I would report things here too in case someone may discover a workaround.

macchanger worked without issues on macOS 14.3.1.

After updating to 14.4:

% sudo macchanger -r en0                         
Password:
INFO:    Type of interface is Wi-Fi. Will disassociate from any network.
WARNING: The airport command line tool is deprecated and will be removed in a future release.
For diagnosing Wi-Fi related issues, use the Wireless Diagnostics app or wdutil command line tool.
ERROR:   This device / interface has no MAC address to set.

Worse, this doesn't seem to be unique to macchanger; ifconfig seems broken on macOS 14.4 Sonoma as well:

sudo ifconfig en0 ether 10:93:e8:37:38:39
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address
adomino@MBAm2starhikari ~ % sudo ifconfig en0 ether de:ad:be:ef:de:ad
ifconfig: ioctl (SIOCAIFADDR): Can't assign requested address

Tested as broken on two Apple Silicon devices which previously functioned OK with macchanger on 14.3.1.