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<p class="MsoNormal"><span style="color:#1F497D">Hi Opensips forum members,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This is very hot issue in our production. Please share any inputs that help to resolve the same.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Tried all the items listed on internet search like,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Check for nf_ct_sip module is present and any syslog error logs. It was not the case.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">So many active sip sessions with remote end is fine with keep alive going on. So can rule out firewall configs as well. Just this random error atleast one per day.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Govindaraj, Rajesh <br>
<b>Sent:</b> Friday, May 04, 2018 3:28 PM<br>
<b>To:</b> 'users@lists.opensips.org' <users@lists.opensips.org><br>
<b>Subject:</b> udp send fail randomly<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In of our production environment, the below error is seen once every day. There is no firewall rule changes in the system.
<o:p></o:p></p>
<p class="MsoNormal">This issue never occurred in lab systems.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0in;margin-bottom:2.0pt;margin-left:0in;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black">2018-05-03T14:20:02.000+08:00 [local2] [err] msgct2-ccm-05a.apac.nsroot.net /usr/sbin/opensipsInternal[7527]: ERROR:core:udp_send: sendto(sock,0x7f3d6312d058,735,0,0x7ffdc8e38770,16):
Operation not permitted(1)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0in;margin-bottom:2.0pt;margin-left:0in;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black">2018-05-03T14:20:02.000+08:00 [local2] [err] msgct2-ccm-05a.apac.nsroot.net /usr/sbin/opensipsInternal[7527]: ERROR:core:msg_send: udp_send failed </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Opensips version:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">version: opensips 1.11.5-tls<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:3.0pt;page-break-after:avoid"><b><span lang="EN-GB" style="font-size:12.0pt;font-family:"Calibri Light",sans-serif;color:black">Rajeshkumar Govindaraj<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:6.0pt;page-break-after:avoid"><span lang="EN-GB" style="font-size:12.0pt;color:black">Software Engineer<br>
</span><span style="font-size:10.0pt;color:black">777 Commerce Drive,<br>
Fairfield, CT-06825<br>
</span><b><span lang="FR" style="font-size:10.0pt;color:black">T</span></b><span lang="FR" style="font-size:10.0pt;color:black"> +1 201 253 7803
</span><span style="font-size:10.0pt;font-family:Symbol;color:#5B9BD5">|</span><span lang="FR" style="font-size:10.0pt;color:black">
<b>M</b> +1 475 439 9918 </span><span style="font-size:10.0pt;font-family:Symbol;color:#5B9BD5">|</span><span lang="FR" style="font-size:10.0pt;color:black">
<b>E</b> <a href="mailto:Rajesh.Govindaraj@ipc.com">Rajesh.Govindaraj@ipc.com</a></span><span lang="EN-GB" style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;mso-fareast-language:FR">Follow us on twitter:
</span><span style="font-size:10.0pt">@<span style="text-transform:uppercase">ipc</span>_Systems_Inc
</span><a href="http://www.ipc.com/"><span style="font-size:10.0pt">www.ipc.com</span></a><span style="font-size:10.0pt;color:#44546A"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><img border="0" width="191" height="79" id="Picture_x0020_2" src="cid:image001.jpg@01D3E480.664B3CF0" alt="cid:image006.jpg@01D1940F.3E021840"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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