title: Query on snmp trap size
body: <p>In our application, buffer is allocated to receive snmp trap which is:</p>
  
  <pre><code>unsigned char buffer[65536 - 60 - 8];
  </code></pre>
  
  <p>But these numbers tell me about the IP packet header, footer and total length.</p>
  
  <p>Can you please explain, why do we need this size of buffer for snmp trap?</p>