<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div>Hi Rajesh,<br><div><br>The error does seems to return from os level when your opensips try to open the udp socket for an outgoing connection as it being not allowed for either for user or something else . are you using the standard port and do you have connection tracking on your iptables off for sip port ? I had a similar error due to iptables being blocking the port.<br></div></div>
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On Saturday, 5 May 2018, 12:59:11 AM GMT+5:30, Govindaraj, Rajesh <Rajesh.Govindaraj@ipc.com> wrote:
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<p class="yiv1349266597MsoNormal">Hi,</p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal">In of our production environment, the below error is seen once every day. There is no firewall rule changes in the system.
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<p class="yiv1349266597MsoNormal">This issue never occurred in lab systems.</p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal" style="margin-right:0in;margin-bottom:2.0pt;margin-left:0in;">
<span style="font-size:10.0pt;font-family: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></p>
<p class="yiv1349266597MsoNormal" style="margin-right:0in;margin-bottom:2.0pt;margin-left:0in;">
<span style="font-size:10.0pt;font-family: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></p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal">Opensips version:</p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal">version: opensips 1.11.5-tls</p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal">Thanks,</p>
<p class="yiv1349266597MsoNormal"> </p>
<p class="yiv1349266597MsoNormal" style="margin-bottom:3.0pt;"><b><span style="font-size:12.0pt;font-family:sans-serif;color:black;" lang="EN-GB">Rajeshkumar Govindaraj</span></b></p>
<p class="yiv1349266597MsoNormal" style="margin-bottom:6.0pt;"><span style="font-size:12.0pt;color:black;" lang="EN-GB">Software Engineer<br>
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