title: How to validate a message in pcap?
body: <p>I have a requirement to expand required tree in decoded parameters of pcap file and validate a message in it. </p>
  
  <p>Example:
  Open "Transmission Control Protocol" as shown in screenshot and and validate for the message "This is an ACK to the segment in frame: 278".</p>
  
  <p>Need to develop an automation script in Java for validating messages in pcap files . Currently am using jnetpcap lib.
  Appreciate your inputs!. 
  <a href="https://i.stack.imgur.com/l7fsF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/l7fsF.png" alt="enter image description here"></a></p>