title: Obtain MAC Address from Devices using Python
body: <p>I'm looking for a way (with python) to obtain the <code>layer II</code> address from a device on my local network.  <code>Layer III</code> addresses are known.</p>
  
  <p>The goal is to build a script that will poll a databases of IP addresses on regular intervals ensuring that the mac addresses have not changed and if they have, email alerts to myself.</p>