[asterisk-bugs] [JIRA] (ASTERISK-21383) STUN Binding Requests Not Being Sent Back from Asterisk to Chrome

[Shaun Clark (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=204993#comment-204993 ] 

Shaun Clark commented on ASTERISK-21383:
----------------------------------------

Additional feedback from WebRTC is:

I looked at the trace and a binding request is sent from B to Chrome, but not until 7 seconds into the call

1949	6.971568	198.61.170.55	50.43.101.90	STUN	186	Binding Request user: KHi2c1n7iBcTukWC:7cafd4523fc0f40912fdb7196e39c60a


Regarding why Chrome sends audio, if you look at the example I sent previously, the offering endpoint starts sending audio once its checks complete, this is shown in step 13. The remote side should not start sending audio until its check completes, in step 17, so Chrome discards it silently.
                
> STUN Binding Requests Not Being Sent Back from Asterisk to Chrome
> -----------------------------------------------------------------
>
>                 Key: ASTERISK-21383
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21383
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_http_websocket
>    Affects Versions: 11.3.0, 11.4.0
>            Reporter: Shaun Clark
>         Attachments: capture.pcap, onewaycapture.pcap, Screen Shot 2013-04-05 at 8.10.27 AM.png, stuncap.pcap
>
>
> When placing an outbound call from jssip/webrtc we get a one way audio situation that produces an error in Chrome that states:
> [1794:9495:0403/134116:VERBOSE1:port.cc(289)] Jingle:Port[audio:1:0::Net[en0:10.0.1.3/32]]: Received non-STUN packet from unknown address (198.61.XX.XX:11036)
> Asking the WebRTC group they say the error relates to RFC Spec 5245 section 17, where it talks about sending back stun bind requests from in this case Asterisk to the client. They believe that the bind request is not being properly returned. (https://groups.google.com/forum/?fromgroups=#!topic/discuss-webrtc/GKtrfMir2sE)

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