Analyzing RTP packets from browser's webRTC stream using Wireshark or similar tool












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Is my observation correct that RTP/RTCP packets from a webRTC stream cannot be analyzed in Wireshark running on the same desktop to analyze RTP packets because the browser would have encrypted them using DTLS/SRTP?



I know there are some browser APIs to help but is there any other approach?
libpcap if used to write some tool will probably have the same problem.










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    1















    Is my observation correct that RTP/RTCP packets from a webRTC stream cannot be analyzed in Wireshark running on the same desktop to analyze RTP packets because the browser would have encrypted them using DTLS/SRTP?



    I know there are some browser APIs to help but is there any other approach?
    libpcap if used to write some tool will probably have the same problem.










    share|improve this question



























      1












      1








      1








      Is my observation correct that RTP/RTCP packets from a webRTC stream cannot be analyzed in Wireshark running on the same desktop to analyze RTP packets because the browser would have encrypted them using DTLS/SRTP?



      I know there are some browser APIs to help but is there any other approach?
      libpcap if used to write some tool will probably have the same problem.










      share|improve this question
















      Is my observation correct that RTP/RTCP packets from a webRTC stream cannot be analyzed in Wireshark running on the same desktop to analyze RTP packets because the browser would have encrypted them using DTLS/SRTP?



      I know there are some browser APIs to help but is there any other approach?
      libpcap if used to write some tool will probably have the same problem.







      webrtc wireshark rtp libpcap






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 14 '18 at 3:55







      RTC

















      asked Nov 14 '18 at 3:50









      RTCRTC

      569




      569
























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          Firefox has support for dumping the decrypted RTP/RTCP packets into the log files, described here. Chrome does not have something similar unfortunately.



          If you use a server, some of them like Janus have the ability to generate similar dumps, see here






          share|improve this answer
























          • I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

            – RTC
            Nov 14 '18 at 8:14











          • Can u please help me on this question?

            – RTC
            Dec 7 '18 at 17:09













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          1 Answer
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          active

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          Firefox has support for dumping the decrypted RTP/RTCP packets into the log files, described here. Chrome does not have something similar unfortunately.



          If you use a server, some of them like Janus have the ability to generate similar dumps, see here






          share|improve this answer
























          • I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

            – RTC
            Nov 14 '18 at 8:14











          • Can u please help me on this question?

            – RTC
            Dec 7 '18 at 17:09


















          2














          Firefox has support for dumping the decrypted RTP/RTCP packets into the log files, described here. Chrome does not have something similar unfortunately.



          If you use a server, some of them like Janus have the ability to generate similar dumps, see here






          share|improve this answer
























          • I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

            – RTC
            Nov 14 '18 at 8:14











          • Can u please help me on this question?

            – RTC
            Dec 7 '18 at 17:09
















          2












          2








          2







          Firefox has support for dumping the decrypted RTP/RTCP packets into the log files, described here. Chrome does not have something similar unfortunately.



          If you use a server, some of them like Janus have the ability to generate similar dumps, see here






          share|improve this answer













          Firefox has support for dumping the decrypted RTP/RTCP packets into the log files, described here. Chrome does not have something similar unfortunately.



          If you use a server, some of them like Janus have the ability to generate similar dumps, see here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 14 '18 at 6:45









          Philipp HanckePhilipp Hancke

          6,2301513




          6,2301513













          • I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

            – RTC
            Nov 14 '18 at 8:14











          • Can u please help me on this question?

            – RTC
            Dec 7 '18 at 17:09





















          • I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

            – RTC
            Nov 14 '18 at 8:14











          • Can u please help me on this question?

            – RTC
            Dec 7 '18 at 17:09



















          I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

          – RTC
          Nov 14 '18 at 8:14





          I guess that keeping a middleware in between will need to do the entire DTLS-SRTP handshake, copy the rtp/rtcp packets and blindly forward them to the other peer but then we are dealing with all related issues which Janus-type SFUs/MCUs deal with. The Firefox solution should suffice. Thanks

          – RTC
          Nov 14 '18 at 8:14













          Can u please help me on this question?

          – RTC
          Dec 7 '18 at 17:09







          Can u please help me on this question?

          – RTC
          Dec 7 '18 at 17:09




















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