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after that it was possible to change the MAC address from command line. I found the chipset driver on another manufacturer's website, relative to a different product that uses the same RTL8153 chipset, installed it, rebooted, and voilà. So no, not an hardware problem, at least in my case.Īfter a few failed attempts with third party software and useless drivers, I found out that my adapter had the Realtek 8153 chipset, as confirmed by the system report of Mac Os X: On both Mac Os X 10.10.5 (Yosemite) and 10.11.4 (El Capitan) the command to change the MAC address was ignored, while it worked flawlessly on Ubuntu 15.10. I had the same problem with a Tecknet UL688G USB 3.0 to 10/100/1000 Gigabit Ethernet adaptor. sudo ifconfig en6 ether xx:xx:xx:xx:xx:xx) works as expected. I fixed this issue by installing my adapter's chipset driver on Mac Os X.Īfter rebooting, the usual command (e.g. I'm using OS x Mavericks and my USB-Ethernet adapter is a Chinese one, the model is AX88772A

If I try to change the mac address of my Wi-Fi I can do it. Inet 192.168.1.38 netmask 0xffffff00 broadcast 192.168.1.255Īnswering some questions, yes I have tried with sudo en4 down/up and I thing it's not a limitation because I can change it in Ubuntu. The output of sudo ifconfig en4 again: en4: flags=88 Sudo ifconfig en4 ether 10:0B:AD:C0:FF:EE doesn't have any output. The output of sudo ifconfig en4: en4: flags=88

In Ubuntu the name of the adapter is eth0 but in OS X it's en4 instead of en0.

Do you know how can I do the same in OS X? I've also tried with Ubuntu and it worked. The command doesn't return any error but when I run ifconfig again the mac address is still the same. I have tried with sudo ifconfig en4 ether xx:xx:xx:xx:xx:xxĪnd with sudo ifconfig en4 lladdr xx:xx:xx:xx:xx:xxĪnd with both I got the same result. In my university we have to put a specific mac address but I can not change it. I've recently bought a usb-ethernet adapter (not apple) and I get internet connection.