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Hi all,

Under the Wireshark GUI, I am able to decode the UDP to RTP by using the

"Analyze > decode as..."

. However, for the command line, I am not able to do it

tshark -r c:\input.cap -d udp.port==20390,rtp -w c:\output.cap

it runs without error but after I open the output.cap in Wireshark GUI, the problem is all the frames are still UDP. Seems the file not change?? Anybody could help?

Thanks Sam

asked 25 Apr '12, 08:33

manfree's gravatar image

accept rate: 0%

edited 25 Apr '12, 08:36

From the Wireshark GUI set the RTP dissector preference: Try to decode RTP outside of conversations.


Add -o rtp.heuristic_rtp:TRUE to your command line.

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answered 26 Apr '12, 07:08

Jaap's gravatar image

Jaap ♦
accept rate: 14%

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question asked: 25 Apr '12, 08:33

question was seen: 8,131 times

last updated: 27 Apr '12, 04:12

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