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To access and use an existing filter, you must type the correct name in the “Apply a display filter” section underneath the program’s toolbar.

Wireshark has an impressive library of built-in filters to help users better monitor their networks. A display filter keeps data within a trace buffer, hiding the traffic you’re disinterested in and displaying only the information you wish to view.

Also, you can establish it while the operation is in progress. You can set this type of filter before initiating a capture operation and later adjust or cancel it. On the other hand, display filters contain parameters that apply to all captured packets.