<div dir="ltr">Thanks, Bogdan,<br><br>I have just upgraded Opensips from 1.9 to 2.1 and did not notice the new features related to uac_auth. I was looking a way to dynamically match the authentication credentials and I believe the following new parameters will solve the problem.  <br><br>auth_realm_avp <br>auth_username_avp<br>auth_password_avp<br><div><br></div><div>Thanks,</div><div>Ping</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 10, 2015 at 2:01 AM, Bogdan-Andrei Iancu <span dir="ltr">&lt;<a href="mailto:bogdan@opensips.org" target="_blank">bogdan@opensips.org</a>&gt;</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">
    <tt>Hi Ping,<br>
      <br>
      You should not manually change the cseq in the messages as you
      will break the whole dialog (the sequential requests).<br>
      <br>
      The 2.1 version does cseq increasing (with dialog consistency)
      when performing uac_auth().<br>
      <br>
      Regards,<br>
    </tt><span class="">
    <pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
    </span><div><div class="h5"><div>On 05.06.2015 09:39, Ping Han wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">Hi Bogdan,
        <div><br>
        </div>
        <div>Thanks for your reply. </div>
        <div><br>
        </div>
        <div>I am trying to manipulate the CSeq header. </div>
        <div><br>
        </div>
        <div>I have attached a packet trace. </div>
        <div><br>
        </div>
        <div>In the example 10.216.235.38 sends a SIP Invite to
          10.216.235.37 via Opensips. Then 10.216.235.37 challenges
          authentication. In the second SIP Invite that contains the
          authentication info (frame number 6), I have to increment the
          CSeq header otherwise 10.216.235.37 does not like it. The new
          CSeq is now set to 2. </div>
        <div><br>
        </div>
        <div>If 10.216.235.37 is not able to accept the call, it returns
          something other than &quot;200 OK&quot; (606 in this example). Now it is
          the problem. Opensips sends back an ACK (frame number 12) with
          CSeq set to 1 (not 2). 10.216.235.37 is expecting an ACK with
          a CSeq set to 2. The consequence is that 10.216.235.37 keeps
          sending 606 until times out.  </div>
        <div><br>
        </div>
        <div>The ACK is internally generated by Opensips and as you said
          we can not manipulate it. I am wondering if there is any way
          to solve this problem. </div>
        <div><br>
        </div>
        <div>PS: 10.216.235.97 is the internal IP of Opensips server and
          10.216.235.74 is the external IP. </div>
        <div><br>
        </div>
        <div>Thanks,</div>
        <div>Ping</div>
        <div><br>
        </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Thu, Jun 4, 2015 at 12:55 AM,
          Bogdan-Andrei Iancu <span dir="ltr">&lt;<a href="mailto:bogdan@opensips.org" target="_blank">bogdan@opensips.org</a>&gt;</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"> <tt>Hi Ping,<br>
                <br>
                There is no access to internally generated ACK and
                CANCEL requests.<br>
                <br>
                What are you trying to do ?<br>
                <br>
                Regards,<br>
              </tt>
              <pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
              <div>
                <div>
                  <div>On 03.06.2015 02:53, Ping Han wrote:<br>
                  </div>
                </div>
              </div>
              <blockquote type="cite">
                <div>
                  <div>
                    <div dir="ltr">Hi,<br>
                      <br>
                      With Opensips is there a way to manipulate the SIP
                      headers of a messages that are generated locally
                      by Opensips. See the example below.<br>
                      <br>
                      --------------------------------------------<br>
                      ACK <a href="http://sip:0370103204@192.168.100.37:5060" target="_blank">sip:0370103204@192.168.100.37:5060</a>
                      SIP/2.0<br>
                      Via: SIP/2.0/UDP
                      192.168.100.74:5060;branch=z9hG4bK5094.3ee05403.1<br>
                      From:&lt;<a href="mailto:sip%3A0370103401@xxxvoip.com" target="_blank">sip:0370103401@xxxvoip.com</a>&gt;;tag=1740643510<br>
                      Call-ID: <a href="mailto:641613075@192.168.100.38" target="_blank">641613075@192.168.100.38</a><br>
                      To:&lt;<a href="http://sip:0370103204@192.168.100.37:5060" target="_blank">sip:0370103204@192.168.100.37:5060</a>&gt;;tag=1994410995-1432625097305;<br>
                      CSeq: 1 ACK<br>
                      Max-Forwards: 70<br>
                      User-Agent: OpenSIPS (2.1.0 (x86_64/linux))<br>
                      Content-Length: 0<br>
                      --------------------------------------------<br>
                      <br>
                      Thanks,<br>
                      Ping Han</div>
                    <br>
                    <fieldset></fieldset>
                    <br>
                  </div>
                </div>
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</pre>
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