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</o:shapelayout></xml><![endif]--></head><body lang=ES link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Good morning.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I’ve been testing this again (Mediaproxy)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Playing with IPTABLES has not been a good idea because a rule to deny traffic doesn’t fire “/proc/sys/net/ipv4/netfilter/ip_conntrack_udp_timeout_stream” rule so I was mistaken Saul (<a href="http://lists.opensips.org/pipermail/users/2012-May/021657.html">http://lists.opensips.org/pipermail/users/2012-May/021657.html</a>)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I’ve been realized about this with cat /proc/net/nf_conntrack |grep udp|grep 500 (if this helps someone)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Mediaproxy only realizes about this rule when the 4 UDP streams (2 for each leg) are timed out.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>We think that once 1 of the 4 streams has no traffic for 180 seconds mediaproxy should fire the “</span><span lang=EN-US style='color:#1F497D'>dlg_terminate_dlg</span><span lang=EN-US style='color:#1F497D'>” call. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Could this be achieved in future versions? Is there any reason to do like actually?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Finally, for CentOS machines with netfilter support if you want to tune ip_conntrack_udp_timeout_stream variable we have to do on </span><span lang=EN-US style='color:#1F497D'>/proc/sys/net/netfilter/nf_conntrack_udp_timeout_stream.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks and regards.</span><span lang=EN-US style='color:#1F497D'><o:p></o:p></span></p><div><p class=MsoNormal><span style='color:#1F497D'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Eduardo Lejarreta.<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> users-bounces@lists.opensips.org [mailto:users-bounces@lists.opensips.org] <b>En nombre de </b>Eduardo Lejarreta<br><b>Enviado el:</b> viernes, 09 de noviembre de 2012 14:00<br><b>Para:</b> users@lists.opensips.org<br><b>Asunto:</b> [OpenSIPS-Users] 180 seconds RTP timeout<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Good morning<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>In reference to <a href="http://lists.opensips.org/pipermail/users/2012-May/021623.html">http://lists.opensips.org/pipermail/users/2012-May/021623.html</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Kernel + Iptables + netfilter + conntrack … versions up to date and supported. Over CentOS.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>We’ve tried this scenario, no RTP flow between both legs. -> Once the call is established.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>iptables -A FORWARD -s <gw-ip>/32 -p udp -j REJECT --reject-with icmp-host-prohibited<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>iptables -A FORWARD -d <gw-ip>/32 -p udp -j REJECT --reject-with icmp-host-prohibited<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>iptables -A FORWARD -s <UA-ip>/32 -p udp -j REJECT --reject-with icmp-host-prohibited<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>iptables -A FORWARD -d <UA-ip>/32 -p udp -j REJECT --reject-with icmp-host-prohibited<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>(Yes I know that this closes SIP dialog also but for investigating purposes is enough. Ngrep and tail over the log running in paralell)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Other timers like on_hold_timeout and stream_timeout are working fine.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>We suspect that the problem is in mediacontrol.py and maybe other libraries where the path for the 180 second is:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>/proc/sys/net/ipv4/netfilter/ip_conntrack_udp_timeout_stream<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>When the real var. is:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>/proc/sys/net/netfilter/nf_conntrack_udp_timeout_stream<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I’ve tried to rebuild mediacontrol.py with the correct path but it’s still failing. Any idea?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>-- <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Eduardo Lejarreta<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>