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<div dir="auto">Hi Bogdan<br />
<br />
Yes, TCP stack works as anticipated. <br />
<br />
Thanks</div>
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<div class="matchFont">Volkan Oransoy</div>
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<div name="messageReplySection">On 17 May 2022 16:02 +0100, Bogdan-Andrei Iancu <bogdan@opensips.org>, wrote:<br />
<blockquote type="cite" style="border-left-color: grey; border-left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left: 10px;"><font face="monospace">Thanks on the follow up here. I guess you need to switch to TCP, right ?<br />
<br />
Regards,<br /></font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS eBootcamp 23rd May - 3rd June 2022
<a class="moz-txt-link-freetext" href="https://opensips.org/training/OpenSIPS_eBootcamp_2022/">https://opensips.org/training/OpenSIPS_eBootcamp_2022/</a></pre>
<div class="moz-cite-prefix">On 5/17/22 2:10 PM, Volkan Oransoy wrote:<br /></div>
<blockquote type="cite" cite="mid:91a1ca9f-83ec-4c64-9543-77ce718c4f8c@Spark">
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<div dir="auto">Hi all,<br />
<br />
For further reference, the issue is related to UDP fragmentation. Digitalocean droplet network doesn’t route fragmented packets. I can see only the first part of the fragmented packet, not the subsequent one. So the destination fails with “ICMP ip reassembly time exceeded, length 556” at os network. <br />
<br />
Cheers</div>
</div>
<div name="messageSignatureSection"><br />
<div class="matchFont">Volkan Oransoy</div>
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<div name="messageReplySection">On 11 May 2022 11:52 +0100, Volkan Oransoy <a class="moz-txt-link-rfc2396E" href="mailto:voransoy@gmail.com"><voransoy@gmail.com></a>, wrote:<br />
<blockquote type="cite" style="border-left-color: grey; border-left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left: 10px;">
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<div dir="auto"><span style="font-family:Andale Mono">I think the screenshot has been discarded by the mailman. The sip traffic is as follows. The proxy tries to retransmit and fails after three more attempts.</span><br />
<br />
<span style="font-family:Courier New">──────────┬───────── ──────────┬───────── ──────────┬─────────</span><br />
<span style="font-family:Courier New"> 10:47:32.603828 │ INVITE (SDP) │ │ </span><br />
<span style="font-family:Courier New"> +0.000347 │ ──────────────────────────> │ │ </span><br />
<span style="font-family:Courier New"> 10:47:32.604175 │ 100 Giving it a try │ │ </span><br />
<span style="font-family:Courier New"> +0.001474 │ <────────────────────────── │ │ </span><br />
<span style="font-family:Courier New"> 10:47:32.605649 │ │ INVITE (SDP) │ </span><br />
<span style="font-family:Courier New"> +0.490742 │ │ ──────────────────────────> │ </span><br />
<span style="font-family:Courier New"> 10:47:33.096391 │ │ INVITE (SDP) │ </span><br />
<span style="font-family:Courier New"> +1.001859 │ │ ────────────────────────>>> │ </span><br />
<span style="font-family:Courier New"> 10:47:34.098250 │ │ INVITE (SDP) │ </span><br />
<span style="font-family:Courier New"> +1.953642 │ │ ────────────────────────>>> │ </span><br />
<span style="font-family:Courier New"> 10:47:36.051892 │ │ INVITE (SDP) │ </span><br />
<span style="font-family:Courier New"> +1.603582 │ │ ────────────────────────>>> │ </span><br />
<span style="font-family:Courier New"> 10:47:37.655474 │ 408 Request Timeout │ │ </span><br />
<span style="font-family:Courier New"> +0.001615 │ <────────────────────────── │ │ </span><br />
<span style="font-family:Courier New"> 10:47:37.657089 │ ACK │ │ </span><br />
<span style="font-family:Courier New"> │ ──────────────────────────> │ │</span></div>
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<div name="messageSignatureSection"><br />
<div class="matchFont">Volkan Oransoy</div>
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<div name="messageReplySection">On 11 May 2022 11:14 +0100, Volkan Oransoy <a class="moz-txt-link-rfc2396E" href="mailto:voransoy@gmail.com"><voransoy@gmail.com></a>, wrote:<br />
<blockquote type="cite" style="border-left-color: grey; border-left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left: 10px;">
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<div dir="auto">Hi all,<br />
<br />
I have an interesting issue with one of my test setups. I have a simple routing script which gets the gateway id directly from the header originating from a Freeswith box. The system finds and sets the request URL as anticipated. But even if I can see the request on the proxy, I can't see the traffic on the destination. Interestingly, the same proxy can register to the same destination with uac_registrant as a UAC. And I can receive calls from the same destination. Is there anything missing to route this traffic correctly?<br />
<br />
Thanks in advance.<br />
<br />
<span style="font-family:Andale Mono">route[to_gateway] {</span><br />
<span style="font-family:Andale Mono"> if ( route_to_gw($hdr(X-GWID)) ) {</span><br />
<span style="font-family:Andale Mono"> route(relay);</span><br />
<span style="font-family:Andale Mono"> }</span><br />
<span style="font-family:Andale Mono">}</span><br />
<span style="font-family:Andale Mono">route[relay] {</span><br />
<span style="font-family:Andale Mono"> if (is_method("INVITE")) {</span><br />
<span style="font-family:Andale Mono"> t_on_branch("per_branch_ops");</span><br />
<span style="font-family:Andale Mono"> t_on_reply("handle_nat");</span><br />
<span style="font-family:Andale Mono"> t_on_failure("failure");</span><br />
<span style="font-family:Andale Mono"> }</span><br />
<span style="font-family:Andale Mono"> if (!t_relay()) {</span><br />
<span style="font-family:Andale Mono"> send_reply(500,"Internal Error");</span><br />
<span style="font-family:Andale Mono"> }</span><br />
<span style="font-family:Andale Mono"> exit;</span><br />
<span style="font-family:Andale Mono">}</span><br />
<br />
<span style="font-family:arial, sans-serif">The database structure is as follows;</span><br />
<br />
<span style="font-family: Monaco, Courier New, monospace">opensips=# select * from dr_gateways;</span><br />
<span style="font-family: Monaco, Courier New, monospace"> id | gwid | type | address | strip | pri_prefix | attrs | probe_mode | state | socket | description</span><br />
<span style="font-family: Monaco, Courier New, monospace">----+------+------+------------------------------+-------+------------+-------+------------+-------+--------+-------------</span><br />
<span style="font-family: Monaco, Courier New, monospace"> 6 | 5 | 2 | sip:</span><a style="font-family: Monaco, Courier New, monospace" href="http://testgw.bulutfon.net:5060" target="_blank" moz-do-not-send="true">testgw.bulutfon.net:5060</a><span style="font-family: Monaco, Courier New, monospace"> | 0 | | | 0 | 0 | | 5</span><br />
<br />
Here is the INVITE request sent to the destination, which fails as in the screenshot.<br />
<br />
<span style="font-family: Monaco, Courier New, monospace">INVITE </span><a style="font-family: Monaco, Courier New, monospace" href="http://sip:905551234567@testgw.bulutfon.net:5060" target="_blank" moz-do-not-send="true">sip:905551234567@testgw.bulutfon.net:5060</a><span style="font-family: Monaco, Courier New, monospace"> SIP/2.0</span><br />
<span style="font-family: Monaco, Courier New, monospace">Record-Route: <a class="moz-txt-link-rfc2396E" href="sip:2.2.2.2;lr;ftag=1jcyr93emrjDQ"><sip:2.2.2.2;lr;ftag=1jcyr93emrjDQ></a></span><br />
<span style="font-family: Monaco, Courier New, monospace">Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK372.d935ecb2.0</span><br />
<span style="font-family: Monaco, Courier New, monospace">Via: SIP/2.0/UDP 1.1.1.1:6080;received=1.1.1.1;rport=6080;branch=z9hG4bK99mtDaevmN7Nj</span><br />
<span style="font-family: Monaco, Courier New, monospace">Max-Forwards: 67</span><br />
<span style="font-family: Monaco, Courier New, monospace">From: "+908508850000" <</span><a style="font-family: Monaco, Courier New, monospace" href="http://sip:908508850000@testgw.bulutfon.net:5060" target="_blank" moz-do-not-send="true">sip:908508850000@testgw.bulutfon.net:5060</a><span style="font-family: Monaco, Courier New, monospace">>;tag=1jcyr93emrjDQ</span><br />
<span style="font-family: Monaco, Courier New, monospace">To: <</span><a style="font-family: Monaco, Courier New, monospace" href="http://sip:905551234567@testgw.bulutfon.net:5060" target="_blank" moz-do-not-send="true">sip:905551234567@testgw.bulutfon.net:5060</a><span style="font-family: Monaco, Courier New, monospace">></span><br />
<span style="font-family: Monaco, Courier New, monospace">Call-ID: aefb8c60-426b-123b-8ca8-82a722ba4f75</span><br />
<span style="font-family: Monaco, Courier New, monospace">CSeq: 51067506 INVITE</span><br />
<span style="font-family: Monaco, Courier New, monospace">Contact: <</span><a style="font-family: Monaco, Courier New, monospace" href="http://sip:mod_sofia@1.1.1.1:6080" target="_blank" moz-do-not-send="true">sip:mod_sofia@1.1.1.1:6080</a><span style="font-family: Monaco, Courier New, monospace">></span><br />
<span style="font-family: Monaco, Courier New, monospace">Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY</span><br />
<span style="font-family: Monaco, Courier New, monospace">Supported: timer, path, replaces</span><br />
<span style="font-family: Monaco, Courier New, monospace">Allow-Events: talk, hold, conference, refer</span><br />
<span style="font-family: Monaco, Courier New, monospace">Content-Type: application/sdp</span><br />
<span style="font-family: Monaco, Courier New, monospace">Content-Disposition: session</span><br />
<span style="font-family: Monaco, Courier New, monospace">Content-Length: 621</span><br />
<span style="font-family: Monaco, Courier New, monospace">Remote-Party-ID: "+908508850000" <</span><a style="font-family: Monaco, Courier New, monospace" href="http://sip:+908508850000@testgw.bulutfon.net:5060" target="_blank" moz-do-not-send="true">sip:+908508850000@testgw.bulutfon.net:5060</a><span style="font-family: Monaco, Courier New, monospace">>;party=calling;screen=yes;privacy=off</span><br />
<br />
<span style="font-family: Monaco, Courier New, monospace">v=0</span><br />
<span style="font-family: Monaco, Courier New, monospace">o=FreeSWITCH 1651210438 1651210439 IN IP4 1.1.1.1</span><br />
<span style="font-family: Monaco, Courier New, monospace">s=FreeSWITCH</span><br />
<span style="font-family: Monaco, Courier New, monospace">c=IN IP4 1.1.1.1</span><br />
<span style="font-family: Monaco, Courier New, monospace">t=0 0 ...</span><br />
<br />
<Screen Shot 2022-04-29 at 15.13.21.png><br />
--</div>
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<div dir="ltr">Volkan Oransoy</div>
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