Wireshark fails to display UDP packets

[PRASANTH RAJAGOPAL <prasanthris () gmail com>]

I am generating UDP packets with packETH, a free and open source tool.
I see that Wireshark can capture the IP packets and detect them as
having UDP packets, but it does not display it as a UDP packet
directly in the protocol field of the frame. This means wireshark is
dissecting until the IP layer, but not beyond that. I saw that some
packets emitted by other computer is seen as UDP. I have attached a
screenshot explaining what I mean.

What I don't understand is, why wireshark does not detect UDP
protocol, when IP protocol has already detected it. Maybe that will
help me see what mistake is done in the frame.

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