[SR-Users-ES] Kamailio como SBC
sip user
sipuser404 en gmail.com
Jue Abr 16 09:11:57 CEST 2020
Hola David, muchas gracias por responder.
Voy a mirar ahí y/o pregunto ahí..
Gracias
El mié., 15 abr. 2020 a las 13:09, David Villasmil (<
david.villasmil.work en gmail.com>) escribió:
> Hola y bienvenido,
>
> Aparentemente tienes que agregar un RR con un FQDN.
>
> En la lista en inglés se ha hablado mucho de ese tema. Mira en los
> archives.
>
> Un saludo
>
> On Wed, 15 Apr 2020 at 10:23, sip user <sipuser404 en gmail.com> wrote:
>
>> Hola buenos días... soy nuevo en esta lista y estaba empezzando a meterme
>> con Kamailio, principalmente para configurarlo como SBC contra Teams, en
>> este caso.
>>
>> Pero no consigo que me funcione. Si lanzo una llamadas desde el Teams, en
>> el Kamailio veo:
>>
>> 1.- En syslog:
>>
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [ip_addr.c:243]: print_ip(): tcpconn_new: new tcp connection: 52.114.7.24
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [tcp_main.c:1073]: tcpconn_new(): tcpconn_new: on port 4160, type 3
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [tcp_main.c:1382]: tcpconn_add(): tcpconn_add: hashes: 171:1857:1187, 30
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [io_wait.h:388]: io_watch_add(): DBG: io_watch_add(0xa1f240, 23, 2,
>> 0x7f90f2438f80), fd_no=17
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [io_wait.h:610]: io_watch_del(): DBG: io_watch_del (0xa1f240, 23, -1, 0x0)
>> fd_no=18 called
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [tcp_main.c:4219]: handle_tcpconn_ev(): tcp: DBG: sending to child, events 1
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [tcp_main.c:3902]: send2child(): selected tcp worker 1 10(23159) for
>> activity on [tls:SBC_IP:5061], 0x7f90f2438f80
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_read.c:1507]: handle_io(): received n=8 con=0x7f90f2438f80, fd=9
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: tls
>> [tls_server.c:184]: tls_complete_init(): Using TLS domain TLSs<default>
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: tls
>> [tls_domain.c:700]: sr_ssl_ctx_info_callback(): SSL handshake started
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_main.c:2516]: tcpconn_do_send(): tcp_send: sending...
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_main.c:2550]: tcpconn_do_send(): tcp_send: after real write: c=
>> 0x7f90f2438f80 n=1468 fd=9
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_main.c:2551]: tcpconn_do_send(): tcp_send: buf=
>> Apr 15 11:11:41 vps793907 kamailio[23122]: #026#003#003
>> Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [io_wait.h:388]: io_watch_add(): DBG: io_watch_add(0x9c1700, 9, 2,
>> 0x7f90f2438f80), fd_no=1
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_read.c:296]: tcp_read_data(): EOF on 0x7f90f2438f80, FD 9
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_read.c:1291]: tcp_read_req(): tcp_read_req: EOF
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [io_wait.h:610]: io_watch_del(): DBG: io_watch_del (0x9c1700, 9, -1, 0x10)
>> fd_no=2 called
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_read.c:1434]: release_tcpconn(): releasing con 0x7f90f2438f80, state
>> -1, fd=9, id=30
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
>> [tcp_read.c:1435]: release_tcpconn(): extra_data 0x7f90f2432b40
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
>> [tcp_main.c:3331]: handle_tcp_child(): handle_tcp_child: reader response=
>> 7f90f2438f80, -1 from 1
>> Apr 15 11:11:42 vps793907 kamailio[23122]: 13(23167) DEBUG: tls
>> [tls_server.c:604]: tls_h_close(): Closing SSL connection 0x7f90f2432b40
>>
>> 2.- Con un TCPDUMP:
>>
>> 11:13:09.311797 IP SBC_IP .1024 > SBC_IP .eu.sip-tls: Flags [S], seq
>> 261244614, win 64240, options [mss 1440,nop,wscale 8,nop,nop,sackOK],
>> length 0
>> 11:13:09.311898 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [S.],
>> seq 812357247, ack 261244615, win 29200, options [mss
>> 1460,nop,nop,sackOK,nop,wscale 7], length 0
>> 11:13:09.340358 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [.],
>> ack 1, win 2053, length 0
>> 11:13:09.340560 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [P.],
>> seq 1:187, ack 1, win 2053, length 186
>> 11:13:09.340578 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [.], ack
>> 187, win 237, length 0
>> 11:13:09.341361 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [P.],
>> seq 1:1469, ack 187, win 237, length 1468
>> 11:13:09.369606 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [.], ack
>> 1469, win 2053, length 0
>> 11:13:12.451498 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [S], seq
>> 309084204, win 64240, options [mss 1440,nop,wscale 8,nop,nop,sackOK],
>> length 0
>> 11:13:12.451587 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [S.], seq
>> 3275066862, ack 309084205, win 29200, options [mss
>> 1460,nop,nop,sackOK,nop,wscale 7], length 0
>> 11:13:12.707119 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack
>> 1, win 2053, length 0
>> 11:13:12.707311 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [P.], seq
>> 1:187, ack 1, win 2053, length 186
>> 11:13:12.707345 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [.], ack
>> 187, win 237, length 0
>> 11:13:12.708273 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [P.], seq
>> 1:1469, ack 187, win 237, length 1468
>> 11:13:12.965101 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack
>> 1469, win 2053, length 0
>> 11:13:12.965156 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [F.], seq
>> 187, ack 1469, win 2053, length 0
>> 11:13:12.965688 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [F.], seq
>> 1469, ack 188, win 237, length 0
>> 11:13:13.220871 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack
>> 1470, win 2053, length 0
>>
>> No consigo "recibir" nada.
>>
>> Tengo generados los certificados y configurados en el tls.cfg del
>> Kamailio:
>>
>> [server:default]
>> method = TLSv1.2
>> verify_certificate = no
>> require_certificate = no
>> private_key = /etc/letsencrypt/ssl/cert.key
>> certificate = /etc/letsencrypt/ssl/cert.crt
>> ca_list = /etc/letsencrypt/ssl/ca.crt
>>
>> Dentro del propio Kamailio tengo configurado para que devuelva un 200
>> KeepAlive al Teams cuando recibe un OPTIONS:
>>
>> event_route[tm:local-request] {
>>
>> if(is_method("OPTIONS") && $ru =~ "pstnhub.microsoft.com") {
>> append_hf("Contact: <sip: SBC_DNS
>> :5061;transport=tls>\r\n");
>> }
>> xlog("L_INFO", "Sent out tm request: $mb\n");
>> }
>>
>> Y he midificado el record_route por este nuevo:
>>
>> record_route_preset(" SBC_DNS :5061;transport=tls", " SBC_IP :5061");
>>
>> He creado una dispatcher.list:
>>
>> # setid(integer) destination(sip uri) flags (integer, optional),
>> priority(int,opt), attrs (str,optional)
>> 1:1:sip:sip.pstnhub.microsoft.com;transport=tls 0 3 socket=tls: SBC_IP
>> :5061;ping_from= sip:SBC_DNS
>> 2:1:sip:sip2.pstnhub.microsoft.com;transport=tls 0 2 socket=tls: SBC_IP
>> :5061;ping_from=sip: SBC_DNS
>> 3:1:sip:sip3.pstnhub.microsoft.com;transport=tls 0 1 socket=tls: SBC_IP
>> :5061;ping_from=sip: SBC_DNS
>> 4:1:sip:sip-all.pstnhub.microsoft.com;transport=tls 0 1 socket=tls:
>> SBC_IP :5061;ping_from=sip: SBC_DNS
>>
>> Creo, que uno de los problemas es que no mando bien el OPTIONS hacia el
>> Teams, ya que este en su panel, me indica que el SBC está INACTIVO.
>>
>> No se si podrías ayudarme a enderezar un poco esto....
>>
>> Muchas gracias por todo..
>>
>> Un saludo
>> _______________________________________________
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>> sr-users-es en lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users-es
>>
> --
> Regards,
>
> David Villasmil
> email: david.villasmil.work en gmail.com
> phone: +34669448337
> _______________________________________________
> sr-users-es mailing list
> sr-users-es en lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users-es
>
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