[asterisk-bugs] [JIRA] (ASTERISK-24253) Attended transfers with directmedia enabled sometimes set wrong rtp address

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=221904#comment-221904 ] 

Matt Jordan commented on ASTERISK-24253:
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We require a complete debug log to help triage the issue. This document will provide instructions on how to collect debugging logs from an Asterisk machine for the purpose of helping bug marshals troubleshoot an issue: https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information

Go ahead and get a full debug log with the appropriate SIP debugging enabled. A pcap would also be helpful.

> Attended transfers with directmedia enabled sometimes set wrong rtp address
> ---------------------------------------------------------------------------
>
>                 Key: ASTERISK-24253
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24253
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 12.4.0
>            Reporter: Eli Hunter
>
> I've been testing directmedia with endpoints and see failures in about 1 out of 5 attended transfers.  It's using the endpoint's internal network address rather than the external IP.  The server is at a public IP and the endpoint is behind NAT.  I changed the IP the enpoint is behind to 1.1.1.1 and the sip provider's IP to 2.2.2.2.
> I thought it was the same as ASTERISK-23497 but it seems to be different and it wasn't fixed by upgrading from 12.2.0 to 12.4.0.
> Working transfer:
> {noformat}
>  == Using SIP RTP TOS bits 184
>   == Using SIP RTP CoS mark 5
>     -- Called SIP/313
>     -- SIP/313-0000060a is ringing
>     -- SIP/313-0000060a answered SIP/312-00000609
>     -- Channel SIP/312-00000609 joined 'simple_bridge' basic-bridge <bfdd32fe-19a3-4438-9b46-59af26be886a>
>     -- Channel SIP/313-0000060a joined 'simple_bridge' basic-bridge <bfdd32fe-19a3-4438-9b46-59af26be886a>
>        > Bridge bfdd32fe-19a3-4438-9b46-59af26be886a: switching from simple_bridge technology to native_rtp
>        > 0x7fcde0015080 -- Probation passed - setting RTP source address to 1.1.1.1:2228
> Got  RTP packet from    1.1.1.1:2228 (type 09, seq 011738, ts 3706243606, len 000160)
> Sent RTP packet to      2.2.2.2:19500 (type 00, seq 012279, ts 2001056, len 000160)
> Sent RTP P2P packet to 1.1.1.1:2228 (type 00, len 000160)
> Got  RTP packet from    1.1.1.1:2228 (type 09, seq 011739, ts 3706243766, len 000160)
> Sent RTP packet to      2.2.2.2:19500 (type 00, seq 012280, ts 2001216, len 000160)
> {noformat}
> Failed transfer:
> {noformat}
>     -- Called SIP/312
>     -- SIP/312-00000608 is ringing
>     -- SIP/312-00000608 answered SIP/313-00000607
>     -- Channel SIP/313-00000607 joined 'simple_bridge' basic-bridge <36553219-70fa-46fa-a6cd-85b45e4e615b>
>     -- Channel SIP/312-00000608 joined 'simple_bridge' basic-bridge <36553219-70fa-46fa-a6cd-85b45e4e615b>
>        > Bridge 36553219-70fa-46fa-a6cd-85b45e4e615b: switching from simple_bridge technology to native_rtp
>        > 0x7fcde8705c30 -- Probation passed - setting RTP source address to 1.1.1.1:2226
>        > 0x7fcde8705c30 -- Probation passed - setting RTP source address to 1.1.1.1:2226
> Sent RTP packet to      10.1.11.18:2228 (type 09, seq 044259, ts 28978992, len 000160)
> Got  RTP packet from    2.2.2.2:19500 (type 00, seq 007364, ts 1178240, len 000160)
> Sent RTP packet to      10.1.11.18:2228 (type 09, seq 044260, ts 28979152, len 000160)
> {noformat}



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