time difference between two packets in wireshark

libpcap, pcap, wireshark

Solution

- Apply a filter, so that you only see the frames you are interested in

- Right click on column title bar and choose "Column Preferences..."

- Click on "Add" (give the column a reasonable name)

- Change field type to "Custom"

- Type "frame.time_delta_displayed" in "Field name" without "

Problem

I want to calculate the time difference between the time from sending the packet, to getting its ACK back. I do not see any timestamp related information in the packet, could anyone give me any pointers as to how I can compute the difference.

Original source