<div dir="ltr"><p>Hi Razvan,</p><p> <br>Here is the requested data.</p><p><br></p><p><b>INITIAL INVITE: <br></b>Via: SIP/2.0/TLS 123.123.212.123:5061;branch=z9hG4bK442.8373b213.0;i=35f5</p><div><b><br></b></div><div><b>200 OK from the B party as received by OpenSIPS:<br></b><div>Via: SIP/2.0/TLS 118.151.101.64:5061;branch=z9hG4bK442.9a584727.0;i=11</div></div><div><br></div><div><br><b>200 OK as sent out by OpenSIPS:<br></b><div>Via: SIP/2.0/TLS 123.123.212.123:5061;received=123.123.212.123;rport=48664;branch=z9hG4bK442.8373b213.0;i=35f5<br></div><div>Via: SIP/2.0/TLS 123.123.212.123:5061;received=123.123.212.123;rport=48664;branch=z9hG4bK442.8373b213.0;i=35f5</div></div><div><br></div><div><br></div><div>Here is the portion of debug log where the destination Answers the call and topology Hiding restore VIA twice.</div><div><br></div><div><a href="http://pastebin.com/z7pt7cwM">http://pastebin.com/z7pt7cwM</a><br></div><div><br></div><div><br></div><div>Thanks for your response and time looking at this for me.</div><div><br></div><div><br></div><div>Regards,</div><div>Sammy.</div><div><br></div><div><br></div><div class="gmail_extra"><div class="gmail_quote">On Nov 14, 2016 3:49 AM, "Răzvan Crainea" <<a href="mailto:razvan@opensips.org" target="_blank">razvan@opensips.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<tt>Hi, Samy!<br>
<br>
Can you post on pastebin debugging logs related to this call?
Also, can you also post the Via headers of the initial INVITE and
for the 200 OK received by OpenSIPS?<br>
<br>
Best regards,<br>
</tt>
<pre class="gmail-m_6224990924350460335m_4438543260217129924moz-signature" cols="72">Răzvan Crainea
OpenSIPS Solutions
<a class="gmail-m_6224990924350460335m_4438543260217129924moz-txt-link-abbreviated" href="http://www.opensips-solutions.com" target="_blank">www.opensips-solutions.com</a></pre>
<div class="gmail-m_6224990924350460335m_4438543260217129924moz-cite-prefix">On 11/12/2016 12:33 AM, SamyGo wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi,<br>
<br>
I'm using OpenSIPS 2.2.1 version and I'm facing a weird
situation where OpenSIPS is adding a duplicated VIA header to
the 200 OK, This only happens when I've topology_hiding()
engaged into the call.
<div><br>
</div>
<div>The scenario is very simple; two users making call to each
other on the same OpenSIPS but with topology_hiding(). As a
consequence of this double VIA the caller device doesn't
trigger the ACK and hence we don't get media stream
established between devices.</div>
<div><br>
<br>
<b>WITH TOPOLOGYHIDING:</b></div>
<div>
<div><font face="monospace, monospace">SIP/2.0 200 OK</font></div>
<div><font face="monospace, monospace">Via: SIP/2.0/TLS
10.1.10.51:59231;received=7X.X<wbr>X.XX.X7;rport=59231;branch=z9h<wbr>G4bK-607165482-63</font></div>
<div><font face="monospace, monospace">Via: SIP/2.0/TLS
10.1.10.51:59231;received=</font><span style="font-family:monospace,monospace">7X.</span><span style="font-family:monospace,monospace">X<wbr>X.XX.X7</span><font face="monospace, monospace">;rport=59231;branch=z9h<wbr>G4bK-607165482-63</font></div>
<div><font face="monospace, monospace">CSeq: 1 INVITE</font></div>
</div>
<div>...<br>
<br>
<b>WITHOUT TOPOHIDING:<br>
</b>
<div><font face="monospace, monospace">SIP/2.0 200 OK</font></div>
<div><font face="monospace, monospace">Via: SIP/2.0/TLS
10.1.10.51:59223;received=</font><span style="font-family:monospace,monospace">7X.</span><span style="font-family:monospace,monospace">X<wbr>X.XX.X7</span><font face="monospace, monospace">;rport=59223;branch=z9h<wbr>G4bK-607166212-58</font></div>
<div><font face="monospace, monospace">CSeq: 1 INVITE</font></div>
<div><br>
<br>
The only difference between the two scenarios is the
function topology_hiding(); is commented out.<br>
<br>
</div>
<div>It seems like a bug to me, can anyone guide me here
validate this. <br>
<b><br>
OpenSIPS Version:</b><br>
<div><font face="monospace, monospace">version: opensips
2.2.1 (x86_64/linux)</font></div>
<div><font face="monospace, monospace">flags: STATS: On,
DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC,
F_MALLOC, FAST_LOCK-ADAPTIVE_WAIT</font></div>
<div><font face="monospace, monospace">ADAPTIVE_WAIT_LOOPS=1024,
MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE
1024, BUF_SIZE 65535</font></div>
<div><font face="monospace, monospace">poll method support:
poll, epoll_lt, epoll_et, sigio_rt, select.</font></div>
<div><font face="monospace, monospace">git revision: 68ace2e</font></div>
<div><font face="monospace, monospace">main.c compiled on
18:34:37 Sep 28 2016 with gcc 4.8</font></div>
<div><br>
</div>
<br>
</div>
<div>Thanks,</div>
<div>Sammy</div>
<div> </div>
<br>
<br>
</div>
</div>
<br>
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<br>
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</blockquote>
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