title: What is Tunnel adapter isatap?
body: <p>Hi i am working MAC address of machine. I have created a Application which gives me MAC ADDRESS for that machine.</p>
  
  <p>I have observe that every machine on which i have tested i got Following physical address in every machine </p>
  
  <pre><code>Tunnel adapter isatap.{80A45D7C-0F1D-4270-83DC-B03014CF06A1}:
  
  
     Media State . . . . . . . . . . . : Media disconnected
     Connection-specific DNS Suffix  . :
     Description . . . . . . . . . . . : Microsoft ISATAP Adapter
     Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
     DHCP Enabled. . . . . . . . . . . : No
     Autoconfiguration Enabled . . . . : Yes
  </code></pre>
  
  <p>i have to work with this </p>
  
  <pre><code>Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
  </code></pre>
  
  <p>Can anybody please explain me about this,so that i can decide whether i can skip this physical address </p>