This is our old Q&A Site. Please post any new questions and answers at ask.wireshark.org.

Hi

I have a application for monitoring the network. This application has a button to start Wireshark to display the captured traffic.

Sometime the RTP payload type is well recognized (AMR-WB) by Wireshark and I can use use the use "RTP -> Stream Analysis".

Sometime it's "Unknown" and I can't use the Stream Analysis (the graph is empty). I changed the Preferences->Protocol->AMR->AMR Dynamic Payload Type, this add a new tree "AMR-WB" in the protocol layers, but the RTP payload type remains "Unknown" and I still can't use the Stream Analysis.

Also if I save the pcap (the one with RTP type well recognized AMR-WB) and open it again, Wireshark loses the information and display "DynamicRTP", so I can't use the Stream Analysis anymore.

That means our monitoring application, when launching Wireshark, probably loads a profil to set the RTP payload type to AMR-WB. Is it possible to do that with Wireshark ?

How can I force the RTP Payload Type to AMR ?

See attachement. It's exactly the same flow (but monitored at 2 different places).

Thank you!!

rtp amr rtp amr


rtp not recognized rtp not recognized

asked 24 Feb '17, 04:24

Nico128's gravatar image

Nico128
6223
accept rate: 0%

Be the first one to answer this question!
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×238

question asked: 24 Feb '17, 04:24

question was seen: 2,322 times

last updated: 24 Feb '17, 04:24

p​o​w​e​r​e​d by O​S​Q​A