[asterisk-bugs] [JIRA] Commented: (ASTERISK-20288) PhonerLite reports RTP read error when ICE Support Enabled

[Joern Krebs (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=196154#comment-196154 ] 

Joern Krebs commented on ASTERISK-20288:
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I think what you are looking for is this little Packet (not found in the Wireshark capture)
-----------------------------------------------------
10:26:11.790543 IP 165.228.177.114.55062 > 103.4.17.248.15452: UDP, length 20
E..0C. at .w......rg.....<\..p#....!..B.b.....*b..a

10:26:11.790739 IP 103.4.17.248.15452 > 165.228.177.114.55062: UDP, length 64
E..\.. at .@.i.g......r<\...H.....,!..B.b.....*b..a.	......Bad Request.."..pjnath-2.0...(...\.J
-----------------------------------------------------
As tcpdump doesn't show non-ASCII characters you cannot "read" the request.
But the Bad request answer basically confirms the the Asterisk ICE implementation has an issue with PhonerLite.

> PhonerLite reports RTP read error when ICE Support Enabled
> ----------------------------------------------------------
>
>                 Key: ASTERISK-20288
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20288
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: SVN, 11.0.0-beta1
>         Environment: Linux Ubuntu
>            Reporter: Joern Krebs
>            Severity: Minor
>         Attachments: debug, debug, phonerlite-capture-filtered.pcap, tcpdump.log
>
>
> O.K. this is a bit hard to explain for me:
> If I use PhonerLite (and I can only replicate this issue with PhonerLite, but there it happens 100% of the time!) to call asterisk (any number, and any setup, nat, no-nat, etc.) I get the warning:
> RTP Read error: Success. Hanging up
> The "Success" part of the error should be the error message. BUT Success indicates, that there actually is no error.
> So what I did was changing the code and checking if the errno is 0, ignore that line ... and it works.
> I do not get this error with the SVN for Asterisk 10, just with SVN Asterisk 11.
> So basically under some circumstances (I cannot replicate the real issue, ... even the debug log doesn't show any issues at all!)
> the errno is set to 0, instead of whatever it should be...
> Can please someone have a look at this.
> (I would be open to test anything, although my dev capabilities are limited.)
> It really is a show-stopper to me! :-(

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