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Hello,<br>
<br>
do you have mhomed enabled? Are there routes from both IP addresses
to the destination?<br>
<br>
IIRC, not that long ago I pointed to some article about linux not
ensuring what would be the local ip used for tcp connections when
many interfaces are having routes to destination. I couldn't find it
quickly now, though.<br>
<br>
What you can try is to force advertised address with:<br>
<br>
listen=tcp:1.2.3.4:5060 advertise 1.2.3.4:5060<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 05/05/15 15:02, Mickael Marrache
wrote:<br>
</div>
<blockquote cite="mid:3ca201d08733$cbc19e10$6344da30$@gmail.com"
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<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Here,
there are 2 interfaces but only the VIP should be used.
Also, the INVITE exits the same interface it entered (i.e.
the VIP) but exits with a different source port (because of
the TCP connection).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">I
tried disabling double RR, I only see the VIP record route
now, however I still see the top Via with the non-VIP
interface although the INVITE is forwarded to the proxy
using the VIP interface.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:FR">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:FR">
sr-users [<a class="moz-txt-link-freetext" href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>]
<b>On Behalf Of </b>Alex Balashov<br>
<b>Sent:</b> Tuesday, May 05, 2015 3:31 PM<br>
<b>To:</b> Mickael Marrache;
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<b>Subject:</b> Re: [SR-Users] Double record routes<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="background:white"><span
style="color:#1F497D">That is normal behaviour if double
RR is enabled in the RR module; two Record-Routes will be
added if Kamailio is multihomed and the invite exits a
different interface to the one it entered.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span
style="color:#1F497D"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span
style="color:#1F497D">--<br>
Alex Balashov | Principal | Evariste Systems LLC<br>
303 Perimeter Center North, Suite 300<br>
Atlanta, GA 30346<br>
United States<br>
<br>
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)<br>
Web: <a moz-do-not-send="true"
href="http://www.evaristesys.com/">http://www.evaristesys.com/</a>, <a
moz-do-not-send="true" href="http://www.csrpswitch.com/">http://www.csrpswitch.com/</a><br>
<br>
Sent from my BlackBerry.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:
</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Mickael
Marrache<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Sent:
</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Tuesday,
May 5, 2015 08:27<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">To:
</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a
moz-do-not-send="true"
href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Reply
To: </span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Kamailio
(SER) - Users Mailing List<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Subject:
</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">[SR-Users]
Double record routes<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span style="font-family:"Times New
Roman","serif""><o:p> </o:p></span></p>
<div id="_originalContent">
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">We are adding TCP
support to our load balancer and for some reason it adds
two record route headers.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">The instance have two
IP addresses on which it binds: one if the VIP address and
the second is the non-VIP address.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I explicitly set the
tcp_source_ipv4 parameter with the VIP address so that it
is used as source address for outbound TCP connection.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">So, we get the
following INVITE going from the load balancer to a proxy:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">T 2015/05/05
12:08:49.715822 VIP:54667 -> PROXY:5060 [AP]</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">INVITE <a
moz-do-not-send="true" href="sip:123@mycompany.com">sip:123@mycompany.com</a>
SIP/2.0.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Record-Route: <<a
moz-do-not-send="true"
href="sip:NONVIP;transport=tcp;r2=on;lr">sip:NONVIP;transport=tcp;r2=on;lr</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Record-Route: <<a
moz-do-not-send="true"
href="sip:VIP;transport=tcp;r2=on;lr">sip:VIP;transport=tcp;r2=on;lr</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/TCP
NONVIP;branch=z9hG4bK6f4.688efa90a17e02181ef7a11fecf8bb72.0;i=3.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/TCP
1.1.1.1:4598;received=2.2.2.2;branch=z9hG4bKmqFaCxNo6m3f5LW4;rport=40020.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">You can see the INVITE
is sent from the VIP address (as specified using the
tcp_source_ipv4 parameter). However, the added Via
corresponds to the non-VIP address. Also, you can see the
two record route headers added for both addresses.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Any idea?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Mickael</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:FR"><br>
<br>
<o:p></o:p></span></p>
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<pre wrap="">_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>
<a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<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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