Can you paste the ACK that loops, after being handled once by Kamailio? Cheers, Daniel
On 07.05.21 13:25, Igor Olhovskiy wrote: > > Daniel, > > Yes, it is. > > alias=... > > Also tried with > > listen = IP advertise FQDN > > same behavior, loose_route() stops acting correctly. > > PS: Forgot to add, Kamailio 5.4.3 / 5.4.4 > > Regards, > Igor > On 07.05.2021 13:21, Daniel-Constantin Mierla wrote: >> >> Hello, >> >> is the KAMAILIO_FQDN set as local domain for Kamailio (via alias >> parameter or domain module+register myself)? >> >> Cheers, >> Daniel >> >> On 07.05.21 11:17, Igor Olhovskiy wrote: >>> >>> Hello, >>> >>> I saw there are some topics on this already and carefully walked >>> through all of them, but can't solve following issue. >>> >>> For a reason I do need that in Record-Route header sent to endpoint >>> would present FQDN. If it matters, it's UDP/WSS conversion done on >>> Kamailio. >>> >>> So, scheme is quite simple >>> >>> Enpoint A ->UDP-> Kamailio ->WSS-> Endpoint B (NAT) >>> >>> Main issue here, that if in Record-Route headers it's FQDN, but not >>> IP addresses, on a new transactions with a dialog (ACK on 200, >>> PRACK, BYE), Kamailio*loose_route()* function resolves address of >>> destination not current dialog, but actual R-URI (or itself, if >>> R-URI is something from WebRTC world) that is not correct due to NAT. >>> >>> If in RR headers IP addresses are present - all is working as expected. >>> >>> As an example (RR with FQDN) >>> >>> B answers 200 >>> >>> SIP/2.0 200 OK >>> Record-Route: >>> <sip:KAMAILIO_FQDN:8089;transport=ws;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss> >>> Record-Route: >>> <sip:KAMAILIO_FQDN;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss> >>> Via: SIP/2.0/UDP <A_IP_ADDRESS>:5060;received=A IP >>> ADDRESS;rport=5060;branch=z9hG4bKPj67fb6d86-97d7-4231-995b-e54b0f62881e >>> To: <sip:88290@<KAMAILIO_FQDN>>;tag=hvra7mj3q0 >>> From: >>> <sip:+XXXX7688881@<KAMAILIO_FQDN>>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d >>> Call-ID: 46f44741-d155-4dd5-8fd8-78e540fc1acb >>> CSeq: 18326 INVITE >>> Contact: <sip:88290@toleivu2gdbh.invalid;transport=wss> >>> Allow: ACK,CANCEL,INVITE,MESSAGE,BYE,OPTIONS,INFO,NOTIFY,REFER >>> Supported: outbound >>> Content-Type: application/sdp >>> Content-Length: 817 >>> >>> >>> ACK looks like >>> >>> ACK sip:88290@toleivu2gdbh.invalid;transport=wss SIP/2.0 >>> Via: SIP/2.0/UDP >>> A_IP_ADDRESS:5060;rport;branch=z9hG4bKPj8d05548a-91ef-4332-8617-32f8eeebf8f2 >>> From: <sip:88881@A_IP_ADDRESS>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d >>> To: <sip:88290@KAMAILIO_FQDN>;tag=hvra7mj3q0 >>> Call-ID: 46f44741-d155-4dd5-8fd8-78e540fc1acb >>> CSeq: 18326 ACK >>> Route: >>> <sip:FQDN;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss> >>> Route: >>> <sip:FQDN:8089;transport=ws;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss> >>> Max-Forwards: 70 >>> User-Agent: Asterisk PBX 13.33.0 >>> Content-Length: 0 >>> >>> And Kamailio on *loose_route()* loops ACK to itself. (with result of >>> function == 1) >>> >>> In a case if in Record-Route/Route headers just IP address of >>> Kamailio present, all works as expected, but it's not really >>> behavior I want to achieve. >>> >>> I've tried to play with *record_route_preset("...")* specifying only >>> WSS part (as suggested in >>> https://skalatan.de/de/blog/kamailio-sbc-teams) with FQDN, but no luck. >>> >>> Also wanted to try approach using record_route_preset() function in >>> branch route, but it was working only with first branch, not >>> affecting others (but I assume having different RR headers across >>> branches is not a good idea) >>> >>> -- >>> Regards, >>> Igor >>> >>> __________________________________________________________ >>> Kamailio - Users Mailing List - Non Commercial Discussions >>> * sr-users@lists.kamailio.org >>> Important: keep the mailing list in the recipients, do not reply only to >>> the sender! >>> Edit mailing list options or unsubscribe: >>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >> -- >> Daniel-Constantin Mierla -- www.asipto.com >> www.twitter.com/miconda -- www.linkedin.com/in/miconda >> Kamailio Advanced Training - Online >> May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone) >> * https://www.asipto.com/sw/kamailio-advanced-training-online/ > > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > * sr-users@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to the > sender! > Edit mailing list options or unsubscribe: > * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Online May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone) * https://www.asipto.com/sw/kamailio-advanced-training-online/
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