Somehow I thought that the keepalive is not working and you look for fixing it. Now I read the full thread and actually the routing of requests within dialog doesn't work.
Can you send a pcap with such a call taken on Kamailio system? ACK and BYE should be routed based on Contact of INVITE/200ok and record-route headers, no longer related to REGISTER (only initial INVITE should rely on registration data). Cheers, Daniel On 02.04.20 22:11, Daniel W. Graham wrote: > > Same behavior with add_contact_alias() > > > > -dan > > > > > > *From: *"[email protected]" <[email protected]> > *Reply-To: *"[email protected]" <[email protected]> > *Date: *Thursday, April 2, 2020 at 2:59 PM > *To: *"Kamailio (SER) - Users Mailing List" > <[email protected]>, Daniel Graham <[email protected]> > *Subject: *Re: [SR-Users] nathelper without usrloc > > > > Hello, > > can you try with add_contact_alias() instead of set_contact_alias()? > The second one updates the contact URI in a way that is visible for > the couple of local modules immediately, typically needed when having > dialog/presence module in that instance (still no changes to the > header itself, it uses some internal mechanism to signal contact value > should be taken from a special field). The first one uses the lumps > system that makes the changes over the contact URI not visible > immediately (unless msg_apply_changes() is used). > > Maybe nat_keepalive() needs the original contact URI, not the one > updated by set_contact_alias(). > > Cheers, > Daniel > > On 02.04.20 18:45, Daniel W. Graham wrote: > > I was able to fix all issues, but have one partially lingering. > > > > For register only, if I apply: set_contact_alias() with > nat_keepalive(), keepalives are not sent. Removing > set_contact_alias() fixes this. > > > > I *shouldn’t need this if the pbx was saving received and rport > params as a result of add_path_received(). > > > > Can anyone explain why these two functions conflict? > > > > Test scenario - > > # Doesn’t result in register keepalive – > > > > route[NATDETECT] { > > force_rport(); > set_contact_alias(); # removal of this enables keepalive > nat_keepalive(); > return; > } > > > > I’ve tested this with and without calls to handle_ruri_alias() > elsewhere in cfg script with same result. > > > > -dan > > > > *From: *sr-users <[email protected]> > <mailto:[email protected]> on behalf of Sergiu > Pojoga <[email protected]> <mailto:[email protected]> > *Reply-To: *"Kamailio (SER) - Users Mailing List" > <[email protected]> <mailto:[email protected]> > *Date: *Wednesday, April 1, 2020 at 8:58 AM > *To: *"Kamailio (SER) - Users Mailing List" > <[email protected]> <mailto:[email protected]> > *Subject: *Re: [SR-Users] nathelper without usrloc > > > > Nothing else comes to mind based on info provided. May be you can > send some sip traffic captures and elaborate? > > > > Regards, > > --Sergiu > > > > On Tue, Mar 31, 2020 at 10:29 PM Daniel W. Graham > <[email protected] <mailto:[email protected]>> wrote: > > Thanks, yeah I had already changed that, but registration > works with either. I’m not asking for a solution, just looking > for suggestions on anything that needs attention, so I > appreciate your pointers. > > > > -dan > > On Mar 31, 2020, at 8:55 PM, Sergiu Pojoga <[email protected] > <mailto:[email protected]>> wrote: > > > > Oh and almost forgot - try *add_path_received()* instead > of add_path() > > > > Good luck! > > > > On Tue, Mar 31, 2020 at 8:48 PM Sergiu Pojoga > <[email protected] <mailto:[email protected]>> wrote: > > A lot of things may not be 'right' here, unfortunately > your question is too broad to answer and too little > info, the topology is indeed non-default and I doubt > someone will present you with a final solution > (there's business support, if you're looking for that). > > > > Otherwise, if I were to just throw a guess: > > - try fix_nated_register() (instead of > set_contact_alias) just for Register method on the way > to the registrar > > - in the Registrar, make sure the Contact's Path > address is correct > > > > Cheers, > > --Sergiu > > > > On Tue, Mar 31, 2020 at 7:34 PM Daniel W. Graham > <[email protected] <mailto:[email protected]>> wrote: > > It did help, I read that a couple times already > but something is still not right, and its only > because of the decoupling of the registrar. I need > to do more debugging and see if Im loosing the > flag value. Hoping something sticks out that > someone sees and can point me in the right direction. > > -dan > > On Mar 31, 2020, at 7:15 PM, Alex Balashov > <[email protected] > <mailto:[email protected]>> wrote: > > > > Daniel, > > > > Might this article be of aid? > > > > > > http://www.evaristesys.com/blog/server-side-nat-traversal-with-kamailio-the-definitive-guide/ > > > > -- Alex > > > >> On Tue, Mar 31, 2020 at 11:12:23PM +0000, > Daniel W. Graham wrote: > >> > >> It does but doesn't work as well as kamailio, > and since the proxy is the entry point. > >> > >> The biggest issue here isnt the keepalive, as I > did have that working. The main issue is the > routing of messages, utilizing set_contact_alias > and handle_ruri_alias, as Ive been unable to get > ack and bye messages to make it past the proxy. > I’m assuming these functions are not being used at > the right locations or I need to rely on another > mechanism to accomplish it. I also question my use > of the PBX flag and the natmanage logic. > >> > >> -dan > >> > >> On Mar 31, 2020, at 7:01 PM, Sergiu Pojoga > <[email protected] <mailto:[email protected]>> wrote: > >> > >> > >> Hi Daniel, > >> > >> From what you are describing, my understanding > is that the Registrar is the PBX, kamailio is > acting as an edge proxy. If so, doesn't the > PBX/registrar have NAT traversal/keepalive > mechanisms of its own? > >> > >> Regards, > >> --Sergiu > >> > >> On Tue, Mar 31, 2020 at 1:55 PM Daniel W. > Graham <[email protected] > <mailto:[email protected]><mailto:[email protected] > <mailto:[email protected]>>> wrote: > >> I’ve been missing with this for a while and > seem to be missing something. Any suggestions on > what is missing here? > >> > >> Trying to use set_contact_alias() and > handle_ruri_alias() from nathelper module and > nat_keepalive from nat_traversal module, without > registrar. > >> > >> I had register keepalive working, that has > since broke. When register keepalive was working, > I was able to place call in either direction but > ACK and BYE was not being routed past kamailio. > >> > >> Registrations are forwarded to the PBX using > add_path() and is working. > >> > >> Also not included below is the routing to the > PBX, that is just setting $du and t_relay, and is > also working. > >> > >> Topology is: UA1 -> NAT -> kamailio -> PBX -> UA2 > >> > >> Using default config file as the example, > modified with above changes. I also removed RTP > config as that is a non-issue. > >> > >> request_route { > >> …… > >> # FLAG MESSAGES FROM PBX > >> setflag(FLT_PBX); > >> route(NATDETECT); > >> …… > >> > >> route[NATDETECT] { > >> if (nat_uac_test("19")) { > >> force_rport(); > >> set_contact_alias(); > >> nat_keepalive(); > >> } > >> return; > >> } > >> > >> route[WITHINDLG] { > >> if (!has_totag()) return; > >> if (loose_route()) { > >> route(DLGURI); > >> } else if ( > is_method("ACK") ) { > >> > route(NATMANAGE); > >> } else if ( > is_method("NOTIFY") ) { > >> record_route(); > >> } > >> route(RELAY); > >> exit; > >> } > >> > >> if (is_method("SUBSCRIBE") && uri == > myself) { > >> route(PRESENCE); > >> exit; > >> } > >> if ( is_method("ACK") ) { > >> if ( t_check_trans() ) { > >> route(RELAY); > >> exit; > >> } else { > >> exit; > >> } > >> } > >> sl_send_reply("404","Not here"); > >> exit; > >> } > >> > >> route[NATMANAGE] { > >> if(isflagset(FLT_PBX)) { > >> handle_ruri_alias(); > >> } > >> if(!isflagset(FLT_PBX)) { > >> set_contact_alias(); > >> } return; > >> } > >> > >> route[DLGURI] { > >> if(!isdsturiset()) { > >> handle_ruri_alias(); > >> } > >> return; > >> } > >> > >> branch_route[MANAGE_BRANCH] { > >> route(NATMANAGE); > >> } > >> > >> onreply_route[MANAGE_REPLY] { > >> if(status=~"[12][0-9][0-9]") { > >> route(NATMANAGE); > >> } > >> } > >> failure_route[MANAGE_FAILURE] { > >> route(NATMANAGE); > >> > >> if (t_is_canceled()) exit; > >> > >> > >> -dan > >> > >> _______________________________________________ > >> Kamailio (SER) - Users Mailing List > >> [email protected] > > <mailto:[email protected]><mailto:[email protected] > <mailto:[email protected]>> > >> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > >> _______________________________________________ > >> Kamailio (SER) - Users Mailing List > >> [email protected] > <mailto:[email protected]> > >> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > > >> _______________________________________________ > >> Kamailio (SER) - Users Mailing List > >> [email protected] > <mailto:[email protected]> > >> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > > > > > -- > > Alex Balashov | Principal | Evariste Systems LLC > > > > Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) > > Web: http://www.evaristesys.com/, > http://www.csrpswitch.com/ > > > > _______________________________________________ > > Kamailio (SER) - Users Mailing List > > [email protected] > <mailto:[email protected]> > > > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > <mailto:[email protected]> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > <mailto:[email protected]> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] <mailto:[email protected]> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > > > _______________________________________________ > > Kamailio (SER) - Users Mailing List > > [email protected] <mailto:[email protected]> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com> > www.twitter.com/miconda <http://www.twitter.com/miconda> -- > www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda
_______________________________________________ Kamailio (SER) - Users Mailing List [email protected] https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
