Rotate your mac on command, or force reiteration with CRONTabbin the SOB.....

func-newaddr.sh

## Alter your comps fingerprint..
function rollmac()
{
  # Disassociate yourself from the airport binary
  # http://osxdaily.com/2007/01/18/airport-the-little-known-command-line-wireless-utility/
  ! hash airport 2>/dev/null  && {
    [ -f /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport ] && {
      ln -fs /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport /usr/local/bin
    } || {
      # Dave's not here..
      echo -e "[err] Airport doesn't seem to exist on your system..." \
        && open 'https://www.youtube.com/watch?v=rtDAK7Umk7A'
    }
  }


  # Stash the SSID of your network sheep so we can autojoin after rotation
  SSID=$(/usr/local/bin/airport -I |awk '/ SSID/  {print substr($0,index($0,$2))}')
  BSID=$(/usr/local/bin/airport -I |awk '/ BSSID/ {print substr($0,index($0,$2))}')
  sudo /usr/local/bin/airport --disassociate # bye felicia..


  # Conjour a new MAC fingerprint from the ethers...
  MAC=$(
    openssl rand -hex 6 | \
    /usr/bin/sed          \
      -e 's/\(..\)/\1:/g' \
      -e 's/./0/2'        \
      -e 's/.$//'         \
  )

  echo -e "Old MAC address was: $(ifconfig en0 |grep ether |awk '{print$2}')\nNew MAC address is:  ${MAC}"
  sudo ifconfig en0 ether ${MAC}


  # Replay with new MAC over the top...
  networksetup -detectnewhardware
  networksetup -setairportnetwork en0 "${SSID}"

  echo -e '[info] Roll down, expect a prompt from your network to accept ToS in a few seconds ;)'
}