title: Can't spoof MAC address in a MacBook
body: <p>I'm having some trouble spoofing my MAC address on my new MacBook Pro (OSX 10.13.6): it simply doesn't change -.-&quot;</p>
  <p>On my prevous MacBook I created and used this script:</p>
  <pre><code>#! /bin/bash
  
  echo &quot;Old MAC:&quot;
  sudo ifconfig en0 ether | grep ether
  
  MAC=$(openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//')
  sudo ifconfig en0 ether $MAC
  
  echo &quot;New MAC ($MAC):&quot;
  sudo ifconfig en0 ether | grep ether
  </code></pre>
  <p>It worked fine on my old MacBook, but after migrating my user to the new MacBook, the old and the new MAC addresses are the same. I also tried third party tools <em>(brew install spoof-mac)</em> with the same result.</p>
  <p>If I try to spoof my MAC address now, the output is always like this, does't matter if the WIFI is connected, disconnected or disabled.</p>
  <pre><code>tim@Tim:~$ ./renewMac.sh
  Old MAC:
      ether 88:e9:fe:83:XX:XX
  New MAC (cd:4c:a0:01:9f:e4):
      ether 88:e9:fe:83:XX:XX
  </code></pre>
  <p>Any tips what is wrong configured?</p>