Re: [SR-Users] Kamailio-5.3.3. NAT and RTP not working

Hi Supreeth, I am getting the below error ms_usrloc_pcscf [/usr/lib/x86_64-linux-gnu/kamailio/modules/ims_usrloc_pcscf.so] 0(455) DEBUG: ims_registrar_pcscf [ims_registrar_pcscf_mod.c:264]: mod_init(): Successfully bound to PCSCF Usrloc module 0(455) DEBUG: <core> [core/sr_module.c:632]: find_mod_export_record(): found export of <bind_ims_ipsec_pcscf> in module ims_ipsec_pcscf [/usr/lib/x86_64-linux-gnu/kamailio/modules/ims_ipsec_pcscf.so] 0(455) ERROR: ims_ipsec_pcscf [cmd.c:85]: bind_ipsec_pcscf(): configuration error - trying to bind to ipsec pscscf module before being initialized 0(455) ERROR: <core> [core/sr_module.c:849]: init_mod(): Error while initializing module ims_registrar_pcscf (/usr/lib/x86_64-linux-gnu/kamailio/modules/ims_registrar_pcscf.so) ERROR: error while initializing modules 0(455) ERROR: ims_ipsec_pcscf [ims_ipsec_pcscf_mod.c:305]: mod_destroy(): Error destroying spi generator 0(455) ERROR: ims_ipsec_pcscf [ims_ipsec_pcscf_mod.c:309]: mod_destroy(): Error destroying port generator 0(455) DEBUG: tm [t_funcs.c:84]: tm_shutdown(): start 0(455) DEBUG: tm [t_funcs.c:87]: tm_shutdown(): emptying hash table 0(455) DEBUG: tm [t_funcs.c:89]: tm_shutdown(): removing semaphores 0(455) DEBUG: tm [t_funcs.c:91]: tm_shutdown(): destroying tmcb lists Kindly help On Wed, Jun 24, 2020 at 5:03 PM supreeth herle &lt;herlesupreeth(a)gmail.com&gt; wrote: > There is no other IPSec configuration needed apart from running Kamailio > P-CSCF and UE sending a SIP Register with Security-Client information for > IPSec creation. Kamailio IMS IPSec module creates IPSec tunnels using > Netlink library. > > Best Regards, > Supreeth > > On Wed, 24 Jun 2020 at 13:29, Pavithra Mohanraja &lt;pavimohan3004(a)gmail.com&gt; > wrote: > >> Hi , >> >> Could you please tell how to configure ipsec (general configuration not >> related to kamailio). >> >> Thanks, >> Pavithra >> >> On Wed, Jun 24, 2020 at 2:12 PM supreeth herle &lt;herlesupreeth(a)gmail.com&gt; >> wrote: >> >>> reason=404 (Not Found - destination user not found on this S-CSCF)] >>>> >>> >>> Please check your IMPU for the IMS user in the IMS HSS (e.g. FHoSS or >>> any other HSS you are using to enter IMS user details). SCSCF is not able >>> to find a registered user with that IMPU (i am assuming that you are >>> getting this response while calling) >>> >>> Increase the debug level on S-CSCF and check out which IMPU is being >>> referred by SCSCF >>> >>> Best Regards, >>> Supreeth >>> >>> On Wed, 24 Jun 2020 at 10:26, Pavithra Mohanraja < >>> pavimohan3004(a)gmail.com&gt; wrote: >>> >>>> Hi, >>>> >>>> I am facing below error in kamailio-ims 5.3.4 version. >>>> >>>> reason=404 (Not Found - destination user not found on this S-CSCF)] >>>> >>>> could you please help me how should i proceed with and where the >>>> registration details will be stored in kamailio ims. >>>> >>>> It fails at this line in kamailio.cfg file in scscf . >>>> >>>> route[FINAL_TERM] { >>>> if (lookup("location")) { >>>> if (uri==myself) { >>>> if (!t_newtran()) { >>>> sl_reply_error(); >>>> exit; >>>> } >>>> xlog("Destination Not Found ----\n"); >>>> t_reply("404","Not Found - destination user >>>> not found on this S-CSCF"); >>>> exit; >>>> } >>>> >>>> here lookup(location) means what it means. Could you please help me >>>> >>>> >>>> >>>> Thanks, >>>> Pavithra >>>> >>>> On Thu, May 14, 2020 at 9:59 PM supreeth herle < >>>> herlesupreeth(a)gmail.com&gt; wrote: >>>> >>>>> Hello Pavithra, >>>>> >>>>> I have written a guide for how to integrate an IMS using Kamailio >>>>> with open5gs EPC, here is the link >>>>> https://open5gs.org/open5gs/docs/tutorial/02-VoLTE-setup/. You can >>>>> find steps to setup rtpengine in that guide. >>>>> >>>>> Regarding requirement of rtpengine, its mandatory if you want to use >>>>> the scripts in that example folder without modification. Also, read the >>>>> READE of sipwise/rtpengine github repo, its very informative (in a gist >>>>> rtpengine offer much more feature than rtpproxy) >>>>> >>>>> why can't we have sip client to sip client rtps flowing like how it >>>>>> is happening without NAT. >>>>>> >>>>> >>>>> For this, i would definitely suggest to read about SIP working. This >>>>> is a perfect link https://github.com/onmyway133/blog/issues/284 >>>>> which offers extensive material (short and very interesting to read with >>>>> examples) related to SIP. >>>>> >>>>> Best Regards, >>>>> Supreeth >>>>> >>>>> >>>>> On Thu, 14 May 2020 at 17:51, Pavithra Mohanraja < >>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>> >>>>>> Hi , >>>>>> >>>>>> I didn't configure rtpengine ..instead of that only I used >>>>>> rrpproxy..will it not work? >>>>>> >>>>>> If not please tell me how to configure rtpengine and also tell me if >>>>>> it is really madatory .. why can't we have sip client to sip client rtps >>>>>> flowing like how it is happening without NAT. >>>>>> >>>>>> That's my doubt ..please clarify .. >>>>>> >>>>>> Thanks. >>>>>> >>>>>> On Thu, May 14, 2020, 8:57 PM supreeth herle < >>>>>> herlesupreeth(a)gmail.com&gt; wrote: >>>>>> >>>>>>> HI, >>>>>>> >>>>>>> Hold on a moment, >>>>>>> >>>>>>> >>>>>>>> 10.40.10.3 - pcscf in port 4060 (pcscf with NAT enabled in >>>>>>>> pcscf.cfg (!#define WITH_NAT) and configured rtpproxy) >>>>>>>> 10.40.10.12 - icscf in port 4070 >>>>>>>> 10.40.10.5 - scscf in port 4080 >>>>>>>> 10.40.10.30 - hss >>>>>>>> >>>>>>> >>>>>>> So i assume you are using the examples provided in the ims folder >>>>>>> of kamailio repo right? Isn't it using RTPEngine and not RTPProxy? Or have >>>>>>> you modified the P-CSCF configuration to work with RTPProxy? >>>>>>> >>>>>>> Best regards, >>>>>>> Supreeth >>>>>>> >>>>>>> On Thu, 14 May 2020 at 16:39, Pavithra Mohanraja < >>>>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>>>> >>>>>>>> Hi , >>>>>>>> I have attached working rtp pcap file. But it is getting reverted >>>>>>>> back to me . >>>>>>>> >>>>>>>> As you said , i have tried restarting rtpproxy several times. but >>>>>>>> it didnt work . >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Thu, May 14, 2020 at 7:11 PM supreeth herle < >>>>>>>> herlesupreeth(a)gmail.com&gt; wrote: >>>>>>>> >>>>>>>>> Thanks for the pcap. Sorry, to ask this but can you also send >>>>>>>>> pcap of scenario where you see RTP packets? >>>>>>>>> >>>>>>>>> Also, did you restart the rtpproxy after altering the >>>>>>>>> /etc/default/rtpproxy ? >>>>>>>>> >>>>>>>>> i.e. >>>>>>>>> >>>>>>>>> $ systemctl restart rtpproxy >>>>>>>>> >>>>>>>>> Best Regards, >>>>>>>>> Supreeth >>>>>>>>> >>>>>>>>> On Thu, 14 May 2020 at 14:51, Pavithra Mohanraja < >>>>>>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>>>>>> >>>>>>>>>> Hi Supreeth, >>>>>>>>>> I have attached pcap files . kindly check and let me know. >>>>>>>>>> filter of rtp packets and check. >>>>>>>>>> >>>>>>>>>> *filter : sip || rtp* >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Thu, May 14, 2020 at 5:15 PM supreeth herle < >>>>>>>>>> herlesupreeth(a)gmail.com&gt; wrote: >>>>>>>>>> >>>>>>>>>>> Hi Pavithra, >>>>>>>>>>> >>>>>>>>>>> Thanks for the clarification. Can you please attach a pcap of >>>>>>>>>>> the call where you are not seeing the RTP packets? And, btw is the call >>>>>>>>>>> getting dropped or something in that scenario? >>>>>>>>>>> >>>>>>>>>>> Regards, >>>>>>>>>>> Supreeth >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Thu, 14 May 2020 at 13:34, Pavithra Mohanraja < >>>>>>>>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>>>>>>>> >>>>>>>>>>>> Hi Supreeth, >>>>>>>>>>>> >>>>>>>>>>>> I have kamailio ims installed in 4 vms inside openstack. >>>>>>>>>>>> >>>>>>>>>>>> 10.40.10.3 - pcscf in port 4060 (pcscf with NAT enabled in >>>>>>>>>>>> pcscf.cfg (!#define WITH_NAT) and configured rtpproxy) >>>>>>>>>>>> 10.40.10.12 - icscf in port 4070 >>>>>>>>>>>> 10.40.10.5 - scscf in port 4080 >>>>>>>>>>>> 10.40.10.30 - hss >>>>>>>>>>>> >>>>>>>>>>>> so all these vms are running in same subnet. >>>>>>>>>>>> I have a floating ip associated to pcscf. >>>>>>>>>>>> Now I have two zoiper clients outside openstack >>>>>>>>>>>> zoiper1 - 10.0.2.15 (NAT Enabled Network adaptor) >>>>>>>>>>>> zoiper2 - 10.0.2.15 >>>>>>>>>>>> >>>>>>>>>>>> when i am making a call from zoiper1 to zoiper2, call is going >>>>>>>>>>>> properly . SIP messages are coming properly in wireshark packets. >>>>>>>>>>>> when i filter for RTP packets in wireshark, it is not coming. >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> when i have the zoiper clients inside openstack itself ,i can >>>>>>>>>>>> able to see RTP Packets in wireshark between two sip clients without any >>>>>>>>>>>> NAT related configurations done. >>>>>>>>>>>> >>>>>>>>>>>> Kindly help me. >>>>>>>>>>>> Thanks. >>>>>>>>>>>> >>>>>>>>>>>> On Thu, May 14, 2020 at 4:49 PM supreeth herle < >>>>>>>>>>>> herlesupreeth(a)gmail.com&gt; wrote: >>>>>>>>>>>> >>>>>>>>>>>>> Can you explain some more when you mean by "RTP alone is not >>>>>>>>>>>>> coming."? And, how are you checking/verifying that? >>>>>>>>>>>>> >>>>>>>>>>>>> Regards, >>>>>>>>>>>>> Supreeth >>>>>>>>>>>>> >>>>>>>>>>>>> On Thu, 14 May 2020 at 13:12, Pavithra Mohanraja < >>>>>>>>>>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> Hi , >>>>>>>>>>>>>> >>>>>>>>>>>>>> Yes I have configured as you mentioned only . In my >>>>>>>>>>>>>> pcscf only i have rtpproxy also configured. >>>>>>>>>>>>>> Floating IP i have given in listen address also as >>>>>>>>>>>>>> listen = 10.40.10.3:4060 advertise 10.45.4.22:4060 >>>>>>>>>>>>>> >>>>>>>>>>>>>> 10.40.10.3 - private ip >>>>>>>>>>>>>> 10.45.4.22 - floating ip >>>>>>>>>>>>>> Still RTP alone is not coming. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Is it the only way of configuring NAT ? >>>>>>>>>>>>>> >>>>>>>>>>>>>> Thanks. >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Thu, May 14, 2020 at 4:37 PM supreeth herle < >>>>>>>>>>>>>> herlesupreeth(a)gmail.com&gt; wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>>> Hello Pavithra, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Have you tried advertising the floating IP of the VM >>>>>>>>>>>>>>> running RTPProxy as follows? >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Edit /etc/default/rtpproxy file as follows: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> # Additional options that are passed to the daemon. >>>>>>>>>>>>>>> EXTRA_OPTS="-l 172.24.15.30 -d DBUG:LOG_LOCAL0" >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> here, "-l <PUBLIC_IP>" >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Hope it helps. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Regards, >>>>>>>>>>>>>>> Supreeth >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Thu, 14 May 2020 at 13:01, Pavithra Mohanraja < >>>>>>>>>>>>>>> pavimohan3004(a)gmail.com&gt; wrote: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Hi , >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Could anybody please give me the approach how to configure >>>>>>>>>>>>>>>> NAT in kamailio IMS. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> I have installed kamailio IMS in openstack environment >>>>>>>>>>>>>>>> which has private ips for all four vms (each component in one vm). >>>>>>>>>>>>>>>> pcscf has one floating IP attached. I have enabled "WITH_NAT" and >>>>>>>>>>>>>>>> configured rtpproxy . >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> when i make a call from outside of openstack using 2 >>>>>>>>>>>>>>>> zoiper clients with outbound proxy keeping floating ip of pcscf, I am >>>>>>>>>>>>>>>> getting 200 ok with all SIP packets correctly flowing but there is no RTP >>>>>>>>>>>>>>>> Packet. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> When i try the same within openstack environment without >>>>>>>>>>>>>>>> using public ip, I am getting RTP Packets. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Kindly tell me the procedure of NAT Enablement or do i >>>>>>>>>>>>>>>> need to do anything other than this. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Kindly help because i am stuck with this for long time. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Thanks. >>>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>>>>>> >>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>>>>> >>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>>>> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Kamailio (SER) - Users Mailing List >>>>>>>> sr-users(a)lists.kamailio.org >>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> Kamailio (SER) - Users Mailing List >>>>>>> sr-users(a)lists.kamailio.org >>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>>> >>>>>> _______________________________________________ >>>>>> Kamailio (SER) - Users Mailing List >>>>>> sr-users(a)lists.kamailio.org >>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>>> >>>>> _______________________________________________ >>>>> Kamailio (SER) - Users Mailing List >>>>> sr-users(a)lists.kamailio.org >>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>> >>>>