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<p class="MsoNormal">I believe Address Family (AF) 2 is IPv6 [1].<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The protocol number is not the index of the listener, it refers to the actual protocol being used. I think that proto 3 in OpenSIPS is TLS, but I don’t have a reference for that one.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So the error is saying you are attempting to send a message to an IPv6 address using TLS, but you have no listener defined for that combination.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[1] - <a href="https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml">
https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:black">Ben Newlin </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Devel <devel-bounces@lists.opensips.org> on behalf of Donat Zenichev <donat.zenichev@gmail.com><br>
<b>Reply-To: </b>OpenSIPS devel mailling list <devel@lists.opensips.org><br>
<b>Date: </b>Monday, April 8, 2019 at 8:39 AM<br>
<b>To: </b>"devel@lists.opensips.org" <devel@lists.opensips.org><br>
<b>Subject: </b>[OpenSIPS-Devel] PROTO numbers<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi there.<o:p></o:p></p>
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<p class="MsoNormal">Lately I came across such messages in opensips logs:<br>
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"ERROR:tm:update_uac_dst: failed to fwd to af 2, proto 3 (no corresponding listening socket)"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The error is pretty descriptive and says that certain request is unable to be forwarded, since of absence of needed socket. But I cannot get what means:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">"to af 2"<span class="gmail-pl-smi"> - I found, that it's a member of this structure uac->request.dst.to.s.sa_family ,</span><o:p></o:p></p>
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<p class="MsoNormal">but still no wonder what means number "2".<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">And "proto 3" - does it correlate to a number of a listener defined in my openips configuration file? And if yes, does the count starts at 0 or at 1 ?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks for help in advance!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<pre><o:p> </o:p></pre>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
-- <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#0B5394;background:white">-- <br>
BR, Donat Zenichev </span><o:p></o:p></p>
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