data "protocol"

When Wireshark can't determine how part of a packet should be formatted, it marks that chunk as "Data". This can be caused by the following:

History

The concept of "data" predates networking protocols and is outside the scope of this page. For a complete discussion, see the the Wikipedia entry on data.

Protocol dependencies

The data dissector doesn't directly depend on any protocol, but it can show up in any packet.

Example traffic

data.png

Wireshark

The data dissector is fully functional.

Preference Settings

There are no preferences for the data dissector. However, protocol preferences and other settings described above can affect its display.

Example capture file

XXX - Add a simple example capture file to the SampleCaptures page and link from here. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.

Display Filter

A complete list of Data display filter fields can be found in the display filter reference

Capture Filter

You cannot directly filter data while capturing.

Discussion

Protocols/data (last edited 2008-04-12 17:51:30 by localhost)