<div dir="ltr">Hello Daniel <div><br></div><div>Thanks for your help, actually that is my question from the beginning, is it mandatory to have sockets for UDP ?</div><div>Can I enable only TCP protocol between instances ?</div><div dir="rtl"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Feb 26, 2018 at 9:26 AM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <p>Actually the error is because you try to forward via UDP (proto
      1). Be sure you have listen parameter for UDP and TCP sockets.</p>
    <p>Cheers,<br>
      Daniel<br>
    </p><div><div class="h5">
    <br>
    <div class="m_6131300225342439469moz-cite-prefix">On 25.02.18 11:38, Amar Tinawi wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">
        <div>TCP alone errors were strange : on the proxy node i
          couldn't register and got the following errors : <br>
        </div>
        <div>
          <div>Feb 25 12:15:28 server1 [Proxy-CSCF][31641]: ERROR: tm
            [ut.h:303]: uri2dst2(): no corresponding socket for
            "NET.SYRIATEL" af 2</div>
          <div>Feb 25 12:15:28 server1 [Proxy-CSCF][31641]: ERROR: tm
            [t_fwd.c:469]: prepare_new_uac(): can't fwd to af 2, proto
            1  (no corresponding listening socket)</div>
          <div>Feb 25 12:15:28 server1 [Proxy-CSCF][31641]: ERROR: tm
            [t_fwd.c:1735]: t_forward_nonack(): failure to add branches</div>
          <div>Feb 25 12:15:28 server1 [Proxy-CSCF][31641]: ERROR:
            siptrace [siptrace.c:1930]: trace_send_hep2_duplicate():
            can't forward to af 2, proto 1 no corresponding listening
            socket</div>
          <div>Feb 25 12:15:28 server1 [Proxy-CSCF][31641]: ERROR: sl
            [sl_funcs.c:362]: sl_reply_error(): stateless error reply
            used: I'm terribly sorry, server error occurred (7/SL)</div>
        </div>
        <div>==============================<wbr>==============================<wbr>=========================</div>
        <div><br>
        </div>
        <div>These errors appearing when using two TCP and UDP, i could
          be able to register and make calls but still get errors</div>
        <div>
          <div>Feb 25 11:37:15 server1 [Proxy-CSCF][28999]: ERROR:
            ims_usrloc_pcscf [udomain.c:409]: update_pcontact(): Error
            updating record in DB</div>
          <div>Feb 25 11:37:15 server1 [Proxy-CSCF][28999]: ERROR:
            ims_registrar_pcscf [notify.c:218]: process_contact():
            failed to update pcscf contact</div>
          <div>Feb 25 11:37:15 server1 [Proxy-CSCF][28999]: ERROR: tm
            [tm.c:1242]: w_t_reply(): cannot send a t_reply to a message
            for which no T-state has been established</div>
        </div>
        <div><br>
        </div>
        <div>In addition i cleaned all UDP SRV related records from DNS
          zone and tried to forced all instances in the TCP mode
          configuration</div>
        <div><br>
        </div>
        <div>**Also, in the TCP mode all the  ip addresses that the
          registrations comes from are not the real ip's of the users,
          and also this is very strange</div>
        <div>i got some random  IP's</div>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Fri, Feb 23, 2018 at 10:41 AM,
            Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div text="#000000" bgcolor="#FFFFFF">
                <p>Hello,</p>
                <p>have you look at syslog messages? Are there any
                  errors? Between Kamailio instances, tcp for sip should
                  work. Check also configs to be sure UDP is not
                  enforced there.</p>
                <p>Cheers,<br>
                  Daniel<br>
                </p>
                <div>
                  <div class="m_6131300225342439469h5"> <br>
                    <div class="m_6131300225342439469m_-2222819399075722669moz-cite-prefix">On
                      22.02.18 12:40, Amar Tinawi wrote:<br>
                    </div>
                  </div>
                </div>
                <blockquote type="cite">
                  <div>
                    <div class="m_6131300225342439469h5">
                      <div dir="ltr">Hello list 
                        <div><br>
                        </div>
                        <div>For some reason i couldn't register on
                          kamailio ims when i use only TCP protocols
                          between nodes, the error was solved when i
                          enabled UDP between I-CSCF and S-CSCF</div>
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                        <div>is it mandatory for those two nodes to talk
                          over UDP only ? or i'm missing something ? </div>
                        <div>and in general for sip protocol which is
                          better ? UDP or TCP ?</div>
                        <div><br>
                        </div>
                        <div><br>
                        </div>
                        <div>Regards,</div>
                      </div>
                      <br>
                      <fieldset class="m_6131300225342439469m_-2222819399075722669mimeAttachmentHeader"></fieldset>
                      <br>
                    </div>
                  </div>
                  <pre>______________________________<wbr>_________________
Kamailio (SER) - Users Mailing List
<a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>
<a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">https://lists.kamailio.org/cgi<wbr>-bin/mailman/listinfo/sr-users</a><span class="m_6131300225342439469HOEnZb"><font color="#888888">
</font></span></pre>
                  <span class="m_6131300225342439469HOEnZb"><font color="#888888"> </font></span></blockquote>
                <span class="m_6131300225342439469HOEnZb"><font color="#888888"> <br>
                    <pre class="m_6131300225342439469m_-2222819399075722669moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - March 5-7, 2018, Berlin - <a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="m_6131300225342439469m_-2222819399075722669moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank">www.kamailioworld.com</a></pre>
                  </font></span></div>
            </blockquote>
          </div>
          <br>
        </div>
      </div>
    </blockquote>
    <br>
    <pre class="m_6131300225342439469moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="m_6131300225342439469moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a class="m_6131300225342439469moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - March 5-7, 2018, Berlin - <a class="m_6131300225342439469moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="m_6131300225342439469moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank">www.kamailioworld.com</a></pre>
  </div></div></div>

</blockquote></div><br></div>