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<div class="moz-cite-prefix">Hello,</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">I haven't investigated further, but the
sendto() failed when attempting to send to a random IP in the same
subnetwork. So practically t_relay() fails, not UDP packet with
the SIP request is sent out. My assumption was that the kernel/ip
stack does ip/port detection with icmp befpre sending udp in the
same subnetwork. It might be due to operating system config or
maybe kernel module. You will have to try yourself and see what
happens -- maybe on latest debian stable or centos.</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">Daniel<br>
</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">On 09.05.20 07:26, Sergey Safarov
wrote:<br>
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<blockquote type="cite"
cite="mid:CAHtxdDfydePQVhAT38-B3p2rC7qW8U9DpEZrafprCjRj_hk6eg@mail.gmail.com">
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<div dir="ltr">HI.
<div>Could you help me understand this maillist message.<br>
<a
href="https://lists.kamailio.org/pipermail/sr-dev/2020-April/056608.html"
moz-do-not-send="true">https://lists.kamailio.org/pipermail/sr-dev/2020-April/056608.html</a><br>
<br>
Is that mean - on modern kernel with correct settings
Kamailio, <span style="color:rgb(0,0,0);white-space:pre-wrap">sendto() </span>will
fail <span style="color:rgb(0,0,0);white-space:pre-wrap">after ICMP message and then Kamailio is able send INVITE to </span>other<span style="color:rgb(0,0,0);white-space:pre-wrap"> destination?</span></div>
<div><span style="color:rgb(0,0,0);white-space:pre-wrap">
</span></div>
<div><span style="color:rgb(0,0,0);white-space:pre-wrap">Sergey</span></div>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Kamailio (SER) - Development Mailing List
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</pre>
</blockquote>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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