<HTML dir=ltr><HEAD><TITLE>Re: [OpenSIPS-Users] forward retransmition of "200 OK" if no ACK</TITLE>
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<DIV dir=ltr><FONT face=Verdana color=#000000 size=2>Hi Inaki, ok I will have to reproduce it and trace it, to make sure that sip_trace module is not storing retransmition, I would find it strange as it is storing all other restransmition, INVITE, etc.</FONT></DIV>
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<DIV dir=ltr><FONT face=Verdana size=2>I mean "forward retransmition" not "create new retransmition".</FONT></DIV></DIV>
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<FONT face=Tahoma size=2><B>From:</B> Iņaki Baz Castillo [mailto:ibc@aliax.net]<BR><B>Sent:</B> Wed 30/06/2010 12:25 AM<BR><B>To:</B> OpenSIPS users mailling list<BR><B>Cc:</B> Julien Chavanton<BR><B>Subject:</B> Re: [OpenSIPS-Users] forward retransmition of "200 OK" if no ACK<BR></FONT><BR></DIV>
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<P><FONT size=2>2010/6/29 Julien Chavanton <jc@atlastelecom.com>:<BR>> Will opensips forward retransmition of "200 OK" if no ACK is received after<BR>> a while ?<BR>><BR>> According to sip_trace only the first "200 OK" is forwarded<BR><BR>Do a flow capture using "ngrep -Wbyline -t -q port 5060" (or getting a<BR>pcap file) so you'll get real information about which responses are<BR>being retransmitted.<BR>Also, note that 200 OK is a end-to-end response rather than a<BR>hop-by-hop response (like [3456]XX responses) so the proxy MUST NOT<BR>retransmit it. It's a task of the UAS the retransmission of the 200<BR>until it receives the ACK.<BR><BR><BR>--<BR>Iņaki Baz Castillo<BR><ibc@aliax.net><BR></FONT></P></DIV></BODY></HTML>