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  1. FreeSWITCH
  2. FS-11012

Mac with Ethernet and WiFi enabled sometimes gets no media

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    Details

    • Type: Bug
    • Status: New
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.6.20
    • Fix Version/s: None
    • Component/s: mod_verto
    • Labels:
      None
    • CPU Architecture:
      x86-64
    • Kernel:
      Linux
    • Userland:
      GNU/Linux
    • Distribution:
      Debian
    • Distribution Version:
      Debian 8 jessie
    • Compiler:
      gcc
    • FreeSWITCH GIT Revision:
      tags/v1.6.20
    • GIT Master Revision hash::
      -
    • FSS Support Agreement Customer Number and Company name:
      FSA-CaféX

      Description

      We have been investigating an issue where Freeswitch isn't sending media on the audio port to Chrome and so no video is played. Also the other endpoints in the Chime conference have no media from the Chrome participant.

      Looking at the attached wireshark capture we see two NICs are being used for STUN requests and DTLS established on both. Video is sent and received (though not displayed on Chrome since there is no audio). We can see Freeswitch isn't sending any audio packets.

      Freeswitch is using 54.172.126.203 port 55372 for video and you can see SRTP with payload type 96 (video) flowing in and out. The Chrome was using 192.168.30.118 port 30464 for this connection.

      Freeswitch is using 54.172.126.203 port 51043 for audio and you can see SRTP with payload type 8 (PCMA) flowing to freeswitch but nothing in the other direction. The Chrome was using 192.168.50.211 port 30318 for this connection.

      If Chrome happens to end up using the same NIC (and IP address) for both m-lines this works, but once you see this issue it generally is pretty persistent until you restart the browser.


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              • Assignee:
                mikej Mike Jerris
                Reporter:
                tgreenwood Thomas Greenwood
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                Dates

                • Created:
                  Updated: