Understanding TCP protocol preferences

In Wireshark, there are several protocols that we can modify to display the data, according to our preferences. To modify the way a protocol is displayed, select a header and right-click to view Protocol Preferences, as shown in the following screenshot:

Figure 10.20 – Viewing TCP protocol preferences

At the top of the list of preferences, there is another option, Open Transmission Control Protocol preferences..., which will open the Wireshark preferences, as shown in the following screenshot:

Figure 10.21 – TCP preferences

Once the Preferences dialog box is open, you can select and modify some of the TCP options.

Modifying TCP preferences

When in the preferences dialog box for TCP, you will see a list that outlines your choices, as follows:

• Show TCP summary in protocol tree: When selected, this option will show a summary of what has transpired in that packet.
• Validate...