<div>SIP trace on the external FS server give the following</div><div><br></div><div>send 386 bytes to udp/[192.168.0.8]:5060 at 19:44:02.932215:</div><div> ------------------------------------------------------------------------</div>
<div> ACK sip:tttt@192.168.0.8:5060;transport=udp SIP/2.0</div><div> Via: SIP/2.0/UDP 178.79.156.136:5080;rport;branch=z9hG4bKXKvp0eHNU6t8S</div><div> Max-Forwards: 70</div><div> From: "" <<a href="mailto:sip%3A0000000000@178.79.156.136">sip:0000000000@178.79.156.136</a>>;tag=pUtN7g4DcUtmj</div>
<div> To: <<a href="mailto:sip%3Atttt@95.172.231.192">sip:tttt@95.172.231.192</a>>;tag=FBttS33jBre1j</div><div> Call-ID: b66f4c06-3d8e-1230-2488-fefdb24f9c88</div><div> CSeq: 30206641 ACK</div><div> Contact: <<a href="http://sip:mod_sofia@178.79.156.136:5080">sip:mod_sofia@178.79.156.136:5080</a>></div>
<div> Content-Length: 0</div><div><br></div><div>do this mean the ACK was sent to the private IP address instead of the correct public ip address?</div><br><div class="gmail_quote">On Sat, Jun 30, 2012 at 8:24 PM, Yihui Li <span dir="ltr"><<a href="mailto:xyangni@gmail.com" target="_blank">xyangni@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<div><br></div><div>I am running FS behind a nat, however the nat does not seem to work and nat_map status shows:<br>
<div>NAT type unknown, ExtIP empty.</div><div><br></div><div>My call to the server on external context always get disconnected in about 30 seconds.</div>
<div>Siptrace indicate a ACK timeout as the reason.</div></div><div><br></div><div>I am using a TP-Link router and already set the server as DMZ host. Can anyone help? Thanks</div>
</blockquote></div><br>