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<div dir="ltr">Call record route on initial invite. </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Van:</b> Users <users-bounces@lists.opensips.org> namens Mark Farmer <farmorg@gmail.com><br>
<b>Verzonden:</b> Friday, June 5, 2020 3:05:42 PM<br>
<b>Aan:</b> OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Onderwerp:</b> Re: [OpenSIPS-Users] ACK Routing Issue</font>
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<div dir="ltr">Thanks Diptesh<br>
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<div>I'm using topology hiding, so now I have this:</div>
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<div>if (has_totag()) {</div>
<div> xlog("CUSTOM_LOG: in-dialog $rm has message flags: $mf and branch flags: $bf");</div>
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<div> #Set correct SIP User-Agent Header</div>
<div> if (remove_hf("User-Agent")) {</div>
<div> xlog("CUSTOM_LOG: Setting SIP User-Agent on In-Dialog Request");</div>
<div> insert_hf("User-Agent: OpenSIPS\r\n");</div>
<div> }</div>
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<div> if (!topology_hiding_match() ) {</div>
<div> xlog("CUSTOM_LOG: cannot match request to a dialog \n");</div>
<div> send_reply(404,"Not found");</div>
<div> }</div>
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<div> # handle hop-by-hop ACK (no routing required)</div>
<div> if ( is_method("ACK") && t_check_trans() ) {</div>
<div> xlog("CUSTOM_LOG: ACK detected with valid transaction - t_relay");<br>
</div>
<div> t_relay();</div>
<div> exit;</div>
<div> }</div>
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<div>I don't see a 404 going out so I think <span style="color:rgb(0,0,0); font-size:medium">topology_hiding_match is working.</span></div>
<div>But it tries to send the ACK to itself on it's private interface (I have mhomed=1).</div>
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<div>ACK <a href="mailto:sip%3A%2B44XXXXXXXXXX@10.150.50.72">sip:+44XXXXXXXXXX@10.150.50.72</a>;did=e07.595f3776 SIP/2.0</div>
<div>Via: SIP/2.0/UDP PUB.LIC.IP.ADDR:5060;branch=z9hG4bKc219.d1f5b08.2</div>
<div>From: <sip:+441204860410@<span style="color:rgb(0,0,0); font-size:medium">PUB.LIC.IP.ADDR</span>;user=phone>;tag=gK0c801c8d</div>
<div>To: <<a href="mailto:sip%3A%2B44XXXXXXXXXX@147.152.17.42">sip:+44XXXXXXXXXX@147.152.17.42</a>>;tag=3800350621-1224267434</div>
<div>Call-ID: <a href="mailto:543691539-3800350621-1514620980@sbc-uk-bs13b.uk.sdin.bt.net">
543691539-3800350621-1514620980@sbc-uk-bs13b.uk.sdin.bt.net</a></div>
<div>CSeq: 202841 ACK</div>
<div>Max-Forwards: 69</div>
<div>Content-Length: 0</div>
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<div>Best regards</div>
<div>Mark.</div>
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<div dir="ltr" class="x_gmail_attr">On Fri, 5 Jun 2020 at 13:03, Diptesh Patel <<a href="mailto:diptesh.patel@ecosmob.com">diptesh.patel@ecosmob.com</a>> wrote:<br>
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<div dir="ltr">Hello Mark,
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<div>Are you using Topology Hiding or Loose Routing?</div>
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<div>If you are using Topology Hiding then you need to match the topology using <font color="#444444"><span style="background-color:rgb(254,254,238)"><b>topology_hiding_match()</b> </span>first.</font></div>
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<div>It is great if you can share SIP packets.</div>
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<div>Thanks & Regards</div>
<div dir="ltr"><b>Diptesh Patel</b>
<div>Software Developer </div>
<div>Ecosmob Technologies Ltd, </div>
<div>Ahmedabad</div>
<div>Mo:<b>+919898962659</b></div>
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<div dir="ltr" class="x_gmail_attr">On Fri, Jun 5, 2020 at 5:00 PM Mark Farmer <<a href="mailto:farmorg@gmail.com" target="_blank">farmorg@gmail.com</a>> wrote:<br>
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<blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left-width:1px; border-left-style:solid; border-left-color:rgb(204,204,204); padding-left:1ex">
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<div dir="ltr">Hi everyone
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<div>I've upgraded an OpenSIPS box to 3.1 and am now seeing an issue with ACK's trying to route to an incorrect IP - in this case our own advertised IP.
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<div>I think I'm right in saying that PRACK's & ACK's are treated equally and should route in the same manner? However, PRACK's are routing correctly.</div>
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<div>I have this:</div>
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<div>
<div>if (has_totag()) {</div>
<div> ---</div>
<div><br>
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<div> # handle hop-by-hop ACK (no routing required)<br>
</div>
<div> #if ( is_method("ACK") && t_check_trans() ) {</div>
<div> if (is_method("ACK")) {</div>
<div> t_relay();<br>
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<div> exit;</div>
<div> }</div>
</div>
<div>---</div>
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<div>Thanks for any ideas!</div>
<div>Mark.</div>
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<div dir="ltr" class="x_gmail_signature">Mark Farmer<br>
<a href="mailto:farmorg@gmail.com" target="_blank">farmorg@gmail.com</a></div>
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