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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Using media flow-around means you don’t want the CUBE to terminate the media sessions so it flows directly from one side to the other. I think you are seeing
exactly that. The CUBE is terminating the SIP sessions so CUBE will control all the SDP information. It sounds like the CUBE is by-passing NAT, and I would expect it to.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Why are you using Flow-Around mode?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">+Chris<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Unity Connection TME<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<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""> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Roger Wiklund<br>
<b>Sent:</b> Wednesday, November 07, 2012 6:33 AM<br>
<b>To:</b> Cisco VOIP<br>
<b>Subject:</b> [cisco-voip] SIP NAT in CUBE with media flow-around?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I've configured a CUBE that has a public IP on the outside interface and private in the inside.<o:p></o:p></p>
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<p class="MsoNormal">I'm using media flow-around and PAT.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">The problem is that SDP info sent to the ITSP contains the private IP. It seems that the CUBE is not NATing the SDP.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I have ip nat service sip udp port 5060 enabled, I also tried to disable it without any luck.<o:p></o:p></p>
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<p class="MsoNormal">Also tried the piggyback stuff and sip-sbc nat stuff, nothing is working.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I'm beginning to suspect that NAT Traversal is not supported in flow-around mode.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Any pointers?<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">/Roger<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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