title: How to ping MAC address in Linux
body: <p>I want to ping a known MAC address, I tried to use nmap:</p>
  
  <pre><code>sudo nmap -sP 192.168.15.1/24 | grep  20:64:32:3F:B1:A9
  </code></pre>
  
  <p>But in this case its ping all the 255 IP address (from 192.168.15.1 to 192.168.15.255)  until get my MAC address, and that take a long time  about 4 sec.!</p>
  
  <p>any idea please?</p>