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Hello,<br>
<br>
again, if the SIP messages don't get to kamailio box, then the
problem is on client side, not on server side.<br>
<br>
If the request gets to kamailio and cannot do dns requests or they
don't resolve, you will see a sip reply from kamailio.<br>
<br>
There is not an issue that can be revealed by the config of
kamailio. On the client side, try to use tools like host, dig and
see what happens with dns requests. Also, use there ngrep to see if
there are sip packets sent out of that box.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 20/03/15 11:20, Yogendra Gupta
wrote:<br>
</div>
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<div class="Section1">
<p class="MsoNormal"><span style="color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">When we can
change our DNS IP
then it works with following :<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">U 2015/03/20
10:06:06.504009
23.253.110.48:5060 -> 202.157.76.21:64051<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">ACK
<a class="moz-txt-link-freetext" href="sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48SIP/2.0">sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48SIP/2.0</a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Call-ID:
143610160aa023568302b9c999b79f45@0:0:0:0:0:0:0:0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">CSeq: 2 ACK.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Via: SIP/2.0/UDP
23.253.110.48;branch=z9hG4bK7.601b877c92120368c17b3c0da0802af6.0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Via: SIP/2.0/UDP
192.168.0.217:5060;rport=63789;received=202.157.76.21;branch=z9hG4bK-353035-5aa153400d9ce60dfc573738a4b55232.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">From: "tester1"
<a class="moz-txt-link-rfc2396E" href="sip:tester1@23.253.110.48"><sip:tester1@23.253.110.48></a>;tag=3fdb1d0f.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">To: "tester2"
<a class="moz-txt-link-rfc2396E" href="sip:tester2@23.253.110.48"><sip:tester2@23.253.110.48></a>;tag=31532119.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Max-Forwards: 69.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Contact:
"tester1"
<a class="moz-txt-link-rfc2396E" href="sip:tester1@192.168.0.217:5060;transport=udp;registering_acc=23_253_110_48;alias=202.157.76.21~63789~1"><sip:tester1@192.168.0.217:5060;transport=udp;registering_acc=23_253_110_48;alias=202.157.76.21~63789~1></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">User-Agent:
Jitsi2.6.5390Windows
7.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Content-Length:
0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">But when we
used another DNS IP
(internet) and call then it showing only initialize..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If it has
firewall issue then it
will not work at all DNS IPs. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have attached
before my config
file for kamalio. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Can you tell me
what can be
issue that it works at some DNS IP and not at all?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext">
Daniel-Constantin Mierla
[<a class="moz-txt-link-freetext" href="mailto:miconda@gmail.com">mailto:miconda@gmail.com</a>] <br>
<b>Sent:</b> Friday, March 20, 2015 2:14 AM<br>
<b>To:</b> Yogendra Gupta; 'Kamailio (SER) - Users
Mailing List'<br>
<b>Subject:</b> Re: [SR-Users] Kamalio call issue<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">These are
replies to INVITE
requests, but if you see them, the INVITE passed through the
server as well.<br>
<br>
If you are not aware of a firewall, then perhaps you don't
have one unless is a
default installation with it enabled or one on the network.<br>
<br>
I suggest you do sip tracing on the client machine to see if
the invite
requests leave to the proper IP.<br>
<br>
Ultimately can be also a problem caused by a NAT router with
ALG, if the client
is behind such device.<br>
<br>
Cheers,<br>
Daniel</p>
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<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a class="moz-txt-link-freetext" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a></pre>
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