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Hello,<br>
<br>
the problem is that 10.139.90.137 does not handle properly the
OPTIONS. The request is intended to it as it seems by R-URI:<br>
<br>
OPTIONS <a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<br>
<br>
But it is sent back to 192.168.1.5, which sends it back to .137
based on r-uri (correctly).<br>
<br>
So probably you have some misconfiguration in .137.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 3/14/13 9:07 AM, Ajay Sabat wrote:<br>
</div>
<blockquote
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<div class="WordSection1">
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have an ugly message looping scenario
where a SIP request message received at Kamailio is forwarded
to the switch/router and back to Kamailio in a loop until the
Max-forwards header value becomes 0 or the transaction times
out.
<o:p></o:p></p>
<p class="MsoNormal">After receiving an incoming INVITE request
from a local user, Kamailio forwards the INVITE request to
another proxy located in a different network. The call is
established successfully.
<o:p></o:p></p>
<p class="MsoNormal">During the call setup the external proxy
sends an OPTIONS request to Kamailio (actually to the external
public IP address from where it received INVITE request from
Kamailio). The OPTIONS request arrives at Kamailio. But the
request uri contains the mapped public address instead of the
local ip address where Kamailio is listening. So Kamailio
forwards the request to the public IP address (i.e. the
switch) which again sends it back to Kamailio again and it
keeps looping.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is the message flow. 192.168.1.3 is
the local user registered to Kamailio which is running at
192.168.1.5. IP address of the external proxy server is
10.139.90.161 and 10.139.90.137 is the public IP address of
the switch/router. NAT isn’t enabled at Kamailio.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.3 (192.168.1.3), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: INVITE
<a class="moz-txt-link-freetext" href="sip:1002@video-conf">sip:1002@video-conf</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx"
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1002@video-conf"><sip:1002@video-conf></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Contact:
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.3"><sip:1001@192.168.1.3></a><o:p></o:p></p>
<p class="MsoNormal"> Content-Type: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Allow: INVITE, ACK, CANCEL,
OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 70<o:p></o:p></p>
<p class="MsoNormal"> User-Agent: Linphone/3.5.2
(eXosip2/3.6.0)<o:p></o:p></p>
<p class="MsoNormal"> Subject: Phone call<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 510<o:p></o:p></p>
<p class="MsoNormal"> Message Body <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.5 (192.168.1.5), Dst: 192.168.1.3 (192.168.1.3)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Status-Line: SIP/2.0 100 trying -- your
call is important to us<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport=5060;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx"
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1002@video-conf"><sip:1002@video-conf></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Server: kamailio (3.3.3
(i386/linux))<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.5 (192.168.1.5), Dst: 10.139.90.161 (10.139.90.161)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: INVITE
<a class="moz-txt-link-freetext" href="sip:1002@vc-vcs-control.air2gnd.net">sip:1002@vc-vcs-control.air2gnd.net</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:192.168.1.5;lr=on"><sip:192.168.1.5;lr=on></a><o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bKd6e1.f7985e64.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport=5060;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx"
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1002@video-conf"><sip:1002@video-conf></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Contact:
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.3"><sip:1001@192.168.1.3></a><o:p></o:p></p>
<p class="MsoNormal"> Content-Type: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Allow: INVITE, ACK, CANCEL,
OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 69<o:p></o:p></p>
<p class="MsoNormal"> User-Agent: Linphone/3.5.2
(eXosip2/3.6.0)<o:p></o:p></p>
<p class="MsoNormal"> Subject: Phone call<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 510<o:p></o:p></p>
<p class="MsoNormal"> Message Body<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
10.139.90.161 (10.139.90.161), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Status-Line: SIP/2.0 100 Trying<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bKd6e1.f7985e64.0;received=10.139.90.137<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport=5060;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx"
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1002@video-conf"><sip:1002@video-conf></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
10.139.90.161 (10.139.90.161), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Status-Line: SIP/2.0 101 Dialog
Establishement<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bKd6e1.f7985e64.0;received=10.139.90.137<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport=5060;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:192.168.1.5;lr=on"><sip:192.168.1.5;lr=on></a><o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx”
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1002@ video-conf"><sip:1002@
video-conf></a>;tag=689763673<o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Contact:
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.161:5060"><sip:1002@10.139.90.161:5060></a><o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.5 (192.168.1.5), Dst: 192.168.1.3 (192.168.1.3)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Status-Line: SIP/2.0 101 Dialog
Establishement<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.3:5060;rport=5060;branch=z9hG4bK1941685709<o:p></o:p></p>
<p class="MsoNormal"> Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:192.168.1.5;lr=on"><sip:192.168.1.5;lr=on></a><o:p></o:p></p>
<p class="MsoNormal"> From: "xxxx"
<a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a>;tag=256977615<o:p></o:p></p>
<p class="MsoNormal"> To:
<a class="moz-txt-link-rfc2396E" href="sip:1002@video-conf"><sip:1002@video-conf></a>;tag=689763673<o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1110783207<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 INVITE<o:p></o:p></p>
<p class="MsoNormal"> Contact: <a moz-do-not-send="true"
href="sip:1002@10.139.90.161:5060">sip:1002@10.139.90.161:5060</a><o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"> P-Received: 10.139.90.137<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
10.139.90.161 (10.139.90.161), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: OPTIONS
<a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
10.139.90.161:5060;rport;branch=z9hG4bK231479102<o:p></o:p></p>
<p class="MsoNormal"> From: "yyyy"
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.161"><sip:1002@10.139.90.161></a>;tag=537974226<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1856507851<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 OPTIONS<o:p></o:p></p>
<p class="MsoNormal"> Accept: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 70<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.5 (192.168.1.5), Dst: 10.139.90.137 (10.139.90.137)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: OPTIONS
<a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bK8ba7.fa94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
10.139.90.161:5060;rport=5060;branch=z9hG4bK231479102<o:p></o:p></p>
<p class="MsoNormal"> From: "yyyy"
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.100"><sip:1002@10.139.90.100></a>;tag=537974226<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1856507851<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 OPTIONS<o:p></o:p></p>
<p class="MsoNormal"> Accept: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 69<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
10.139.90.137 (10.139.90.137), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: OPTIONS
<a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bK8ba7.fa94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
10.139.90.161:5060;rport=5060;branch=z9hG4bK231479102<o:p></o:p></p>
<p class="MsoNormal"> From: "uuuu"
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.100"><sip:1002@10.139.90.100></a>;tag=537974226<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1856507851<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 OPTIONS<o:p></o:p></p>
<p class="MsoNormal"> Accept: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 69<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
192.168.1.5 (192.168.1.5), Dst: 10.139.90.137 (10.139.90.137)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: OPTIONS
<a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bK8ba7.0b94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;received=10.139.90.137;branch=z9hG4bK8ba7.fa94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
10.139.90.161:5060;rport=5060;branch=z9hG4bK231479102<o:p></o:p></p>
<p class="MsoNormal"> From: "yyyy"
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.100"><sip:1002@10.139.90.100></a>;tag=537974226<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1856507851<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 OPTIONS<o:p></o:p></p>
<p class="MsoNormal"> Accept: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 68<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Internet Protocol Version 4, Src:
10.139.90.137 (10.139.90.137), Dst: 192.168.1.5 (192.168.1.5)<o:p></o:p></p>
<p class="MsoNormal">User Datagram Protocol, Src Port: sip
(5060), Dst Port: sip (5060)<o:p></o:p></p>
<p class="MsoNormal">Session Initiation Protocol<o:p></o:p></p>
<p class="MsoNormal"> Request-Line: OPTIONS
<a class="moz-txt-link-freetext" href="sip:10.139.90.137:5060">sip:10.139.90.137:5060</a> SIP/2.0<o:p></o:p></p>
<p class="MsoNormal"> Message Header<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;branch=z9hG4bK8ba7.0b94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
192.168.1.5;received=10.139.90.137;branch=z9hG4bK8ba7.fa94bab7.0<o:p></o:p></p>
<p class="MsoNormal"> Via: SIP/2.0/UDP
10.139.90.161:5060;rport=5060;branch=z9hG4bK231479102<o:p></o:p></p>
<p class="MsoNormal"> From: "yyyy"
<a class="moz-txt-link-rfc2396E" href="sip:1002@10.139.90.100"><sip:1002@10.139.90.100></a>;tag=537974226<o:p></o:p></p>
<p class="MsoNormal"> To: <a class="moz-txt-link-rfc2396E" href="sip:1001@192.168.1.5"><sip:1001@192.168.1.5></a><o:p></o:p></p>
<p class="MsoNormal"> Call-ID: 1856507851<o:p></o:p></p>
<p class="MsoNormal"> CSeq: 20 OPTIONS<o:p></o:p></p>
<p class="MsoNormal"> Accept: application/sdp<o:p></o:p></p>
<p class="MsoNormal"> Max-Forwards: 68<o:p></o:p></p>
<p class="MsoNormal"> Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This message forwarding goes on for a long
time in a loop, each time with an extra Via header and
Max-Forwards value decremented by one. After sometime it
eventually times out and Kamailio starts sending 408 response
for the OPTIONS request which again keeps looping.<o:p></o:p></p>
<p class="MsoNormal">Probably adding an alias for the public IP
address i.e., 10.139.90.137 in the Kamailio config file would
solve the problem. But this IP address is not fixed and may
change and I guess there is no way Kamailio can learn the
public IP address on its own.<o:p></o:p></p>
<p class="MsoNormal">Any help or reference to previous posts if
it is already discussed and solved will be much helpful.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Ajay<o:p></o:p></p>
</div>
<br>
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<br>
<pre wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<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, April 16-17, 2013, Berlin
- <a class="moz-txt-link-freetext" href="http://conference.kamailio.com">http://conference.kamailio.com</a> -</pre>
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