Open an existing capture, or start a new capture. Click on a specific packet in the capture file. Even though you can use this feature on a running capture, it is not meant for online statistics, so it is recommended that you start a capture, stop it, and then use this tool.

In the following example, we use the CAP_1674_06_13 file for TCP stream number 8, which is the TCP connection that starts in packet 85.