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Suhas Chikkanna avatar

La conexión VPN termina: L2TP no pudo establecer la asignación de puertos para en0, errorCode: -65564

Preguntado el 24 de Enero, 2022
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La semana pasada surgió el siguiente problema y ya no estoy seguro de que haya ocurrido antes de o después de Me he actualizado a Monterey.

Estoy utilizando una conexión VPN para el trabajo, pero desde la semana pasada esta conexión sólo dura entre 60 y 90 segundos. En los primeros 60 segundos todo está trabajando . La máquina está conectada y tiene internet. Después de estos 60 segundos la conexión a internet deja de funcionar y unos 30 segundos después el cliente VPN me dice que la conexión VPN se ha terminado.

Ahora, después de algunas pruebas, me sugirieron que intentara acceder a Internet desde otra conexión, así que cambié el router de mi casa por un punto de acceso móvil.

Y ahí lo tienes. Con el punto de acceso móvil todo funciona bien durante horas.

Evidentemente, esto hace que el router sea el principal sospechoso, pero llevo meses trabajando con él y como no lo he tocado, me cuesta creer que sea la causa.

He buscado en internet este tema pero no he encontrado nada útil. ¿Hay algo que pueda hacer? Al menos para obtener más información sobre donde ¿de dónde proviene realmente este problema?

Salida de registro

Eché un vistazo a la /var/log/ppp.log y comparamos ambos casos. La principal diferencia, y lo que llama la atención, son estas líneas de aquí:

Thu Jan 20 09:47:09 2022 : L2TP failed to set port-mapping for en0, errorCode: -65564
Thu Jan 20 09:47:09 2022 : L2TP port-mapping for en0 became invalid. is Connected: 1, Protocol: None, Private Port: 0, Previous publicAddress: (0), Previous publicPort: (0)
Thu Jan 20 09:47:09 2022 : L2TP clearing port-mapping for en0

A continuación puede ver las dos sesiones completas.

Trabajando (punto de acceso móvil)

Thu Jan 20 14:51:30 2022 : publish_entry SCDSet() failed: Success!
Thu Jan 20 14:51:30 2022 : publish_entry SCDSet() failed: Success!
Thu Jan 20 14:51:30 2022 : l2tp_get_router_address
Thu Jan 20 14:51:30 2022 : l2tp_get_router_address 192.168.43.1 from dict 1
Thu Jan 20 14:51:30 2022 : L2TP connecting to server '85.237.31.244' (85.237.31.244)...
Thu Jan 20 14:51:30 2022 : IPSec connection started
Thu Jan 20 14:51:30 2022 : IPSec phase 1 client started
Thu Jan 20 14:51:30 2022 : IPSec phase 1 server replied
Thu Jan 20 14:51:31 2022 : IPSec phase 2 started
Thu Jan 20 14:51:31 2022 : IPSec phase 2 established
Thu Jan 20 14:51:31 2022 : IPSec connection established
Thu Jan 20 14:51:31 2022 : L2TP sent SCCRQ
Thu Jan 20 14:51:32 2022 : L2TP received SCCRP
Thu Jan 20 14:51:32 2022 : L2TP sent SCCCN
Thu Jan 20 14:51:32 2022 : L2TP sent ICRQ
Thu Jan 20 14:51:32 2022 : L2TP received ICRP
Thu Jan 20 14:51:32 2022 : L2TP sent ICCN
Thu Jan 20 14:51:32 2022 : L2TP connection established.
Thu Jan 20 14:51:32 2022 : L2TP set port-mapping for en0, interface: 6, protocol: 0, privatePort: 0
Thu Jan 20 14:51:32 2022 : using link 0
Thu Jan 20 14:51:32 2022 : Using interface ppp0
Thu Jan 20 14:51:32 2022 : Connect: ppp0 <--> socket[34:18]
Thu Jan 20 14:51:32 2022 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x57c42b33> <pcomp> <accomp>]
Thu Jan 20 14:51:32 2022 : rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth eap> <magic 0x5e3d2499>]
Thu Jan 20 14:51:32 2022 : lcp_reqci: returning CONFNAK.
Thu Jan 20 14:51:32 2022 : sent [LCP ConfNak id=0x1 <auth chap MS-v2>]
Thu Jan 20 14:51:32 2022 : rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <auth chap MS-v2> <magic 0x5e3d2499>]
Thu Jan 20 14:51:32 2022 : lcp_reqci: returning CONFACK.
Thu Jan 20 14:51:32 2022 : sent [LCP ConfAck id=0x2 <asyncmap 0x0> <auth chap MS-v2> <magic 0x5e3d2499>]
Thu Jan 20 14:51:35 2022 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x57c42b33> <pcomp> <accomp>]
Thu Jan 20 14:51:35 2022 : rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x57c42b33> <pcomp> <accomp>]
Thu Jan 20 14:51:35 2022 : sent [LCP EchoReq id=0x0 magic=0x57c42b33]
Thu Jan 20 14:51:35 2022 : rcvd [CHAP Challenge id=0xc2 <b59776d4e95ffd9c447b70655c5808b6>, name = "xl2tpd"]
Thu Jan 20 14:51:35 2022 : sent [CHAP Response id=0xc2 <6399983a35e92f14499ef668e18b2898000000000000000047db3fdec44452683582e60fd1d8ef17cb0308c7c24d6bff00>, name = "sfalk"]
Thu Jan 20 14:51:35 2022 : rcvd [LCP EchoRep id=0x0 magic=0x5e3d2499]
Thu Jan 20 14:51:35 2022 : rcvd [CHAP Success id=0xc2 "S=E25C4E6D7589D22C958A063AE5018D4349014605"]
Thu Jan 20 14:51:35 2022 : sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
Thu Jan 20 14:51:35 2022 : sent [IPV6CP ConfReq id=0x1 <addr fe80::f218:98ff:fe5f:11f2>]
Thu Jan 20 14:51:35 2022 : rcvd [IPCP ConfReq id=0x1 <addr 10.255.255.0>]
Thu Jan 20 14:51:35 2022 : ipcp: returning Configure-ACK
Thu Jan 20 14:51:35 2022 : sent [IPCP ConfAck id=0x1 <addr 10.255.255.0>]
Thu Jan 20 14:51:36 2022 : rcvd [IPCP ConfNak id=0x1 <addr 10.10.20.8> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 14:51:36 2022 : sent [IPCP ConfReq id=0x2 <addr 10.10.20.8> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 14:51:36 2022 : rcvd [LCP ProtRej id=0x3 80 57 01 01 00 0e 01 0a f2 18 98 ff fe 5f 11 f2]
Thu Jan 20 14:51:36 2022 : rcvd [IPCP ConfAck id=0x2 <addr 10.10.20.8> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 14:51:36 2022 : ipcp: up
Thu Jan 20 14:51:36 2022 : local  IP address 10.10.20.8
Thu Jan 20 14:51:36 2022 : remote IP address 10.255.255.0
Thu Jan 20 14:51:36 2022 : primary   DNS address 10.10.10.1
Thu Jan 20 14:51:36 2022 : secondary DNS address 10.10.10.1
Thu Jan 20 14:51:36 2022 : Received protocol dictionaries
Thu Jan 20 14:51:36 2022 : l2tp_wait_input: Address added. previous interface setting (name: en0, address: 192.168.43.145), current interface setting (name: ppp0, family: PPP, address: 10.10.20.8, subnet: 255.0.0.0, destination: 10.255.255.0).
Thu Jan 20 14:51:36 2022 : Committed PPP store on install command
Thu Jan 20 14:51:36 2022 : rcvd [IPV6 data]
   60 00 00 00 00 24 00 01   00 00 00 00 00 00 00 00   '`....$..........'
   00 00 00 00 00 00 00 00   ff 02 00 00 00 00 00 00   '................'
   00 00 00 00 00 00 00 16   3a 00 05 02 00 00 01 00   '........:.......'
   8f 00 6e 8a 00 00 00 01   04 00 00 00 ff 02 00 00   '..n.............'
   00 00 00 00 00 00 00 00   00 00 00 02               '............'
Thu Jan 20 14:51:36 2022 : Unsupported protocol 0x57 received
Thu Jan 20 14:51:36 2022 : sent [LCP ProtRej id=0x2 00 57 60 00 00 00 00 24 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 02 00 00 00 00 ...]
Thu Jan 20 14:51:37 2022 : rcvd [IPV6 data]
   60 00 00 00 00 24 00 01   00 00 00 00 00 00 00 00   '`....$..........'
   00 00 00 00 00 00 00 00   ff 02 00 00 00 00 00 00   '................'
   00 00 00 00 00 00 00 16   3a 00 05 02 00 00 01 00   '........:.......'
   8f 00 6e 8a 00 00 00 01   04 00 00 00 ff 02 00 00   '..n.............'
   00 00 00 00 00 00 00 00   00 00 00 02               '............'
Thu Jan 20 14:51:37 2022 : Unsupported protocol 0x57 received
Thu Jan 20 14:51:37 2022 : sent [LCP ProtRej id=0x3 00 57 60 00 00 00 00 24 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 02 00 00 00 00 ...]
Thu Jan 20 14:51:39 2022 : L2TP port-mapping update for en0 ignored: VPN is the Primary interface. Public Address: 0, Protocol: None, Private Port: 0, Public Port: 0
Thu Jan 20 14:51:39 2022 : L2TP clearing port-mapping for en0

No funciona (router)

Registro de eventos del router

Al establecer la conexión VPN, puedo ver estas entradas en el registro de eventos de mi router:

24.01.22  10:19:24  Wireless LAN transmission quality increased by reduced channel bandwidth (2,4 GHz). [3 messages since 24.01.22 10:19:04]
24.01.22  10:19:01  Forwarding to 192.168.178.69 (sfalk) added for port 1701.
24.01.22  10:19:01  Forwarding to 192.168.178.69 (sfalk) added for port 4500.
24.01.22  10:18:58  Forwarding to 192.168.178.69 (sfalk) added for port 500.
24.01.22  10:18:04  Event Log was deleted. This change was made in the home network from IP address 192.168.178.69 [sfalk].

/var/log/ppp.log

Thu Jan 20 09:47:07 2022 : publish_entry SCDSet() failed: Success!
Thu Jan 20 09:47:07 2022 : publish_entry SCDSet() failed: Success!
Thu Jan 20 09:47:07 2022 : l2tp_get_router_address
Thu Jan 20 09:47:07 2022 : l2tp_get_router_address 192.168.178.1 from dict 1
Thu Jan 20 09:47:07 2022 : L2TP connecting to server '85.237.31.244' (85.237.31.244)...
Thu Jan 20 09:47:07 2022 : IPSec connection started
Thu Jan 20 09:47:07 2022 : IPSec phase 1 client started
Thu Jan 20 09:47:07 2022 : IPSec phase 1 server replied
Thu Jan 20 09:47:08 2022 : IPSec phase 2 started
Thu Jan 20 09:47:08 2022 : IPSec phase 2 established
Thu Jan 20 09:47:08 2022 : IPSec connection established
Thu Jan 20 09:47:08 2022 : L2TP sent SCCRQ
Thu Jan 20 09:47:08 2022 : L2TP received SCCRP
Thu Jan 20 09:47:08 2022 : L2TP sent SCCCN
Thu Jan 20 09:47:08 2022 : L2TP sent ICRQ
Thu Jan 20 09:47:08 2022 : L2TP received ICRP
Thu Jan 20 09:47:08 2022 : L2TP sent ICCN
Thu Jan 20 09:47:08 2022 : L2TP connection established.
Thu Jan 20 09:47:08 2022 : L2TP set port-mapping for en0, interface: 6, protocol: 0, privatePort: 0
Thu Jan 20 09:47:08 2022 : using link 0
Thu Jan 20 09:47:08 2022 : Using interface ppp0
Thu Jan 20 09:47:08 2022 : Connect: ppp0 <--> socket[34:18]
Thu Jan 20 09:47:08 2022 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x62b2ff57> <pcomp> <accomp>]
Thu Jan 20 09:47:08 2022 : rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth eap> <magic 0xfb54e2f3>]
Thu Jan 20 09:47:08 2022 : lcp_reqci: returning CONFNAK.
Thu Jan 20 09:47:08 2022 : sent [LCP ConfNak id=0x1 <auth chap MS-v2>]
Thu Jan 20 09:47:08 2022 : rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <auth chap MS-v2> <magic 0xfb54e2f3>]
Thu Jan 20 09:47:08 2022 : lcp_reqci: returning CONFACK.
Thu Jan 20 09:47:08 2022 : sent [LCP ConfAck id=0x2 <asyncmap 0x0> <auth chap MS-v2> <magic 0xfb54e2f3>]
Thu Jan 20 09:47:09 2022 : L2TP failed to set port-mapping for en0, errorCode: -65564
Thu Jan 20 09:47:09 2022 : L2TP port-mapping for en0 became invalid. is Connected: 1, Protocol: None, Private Port: 0, Previous publicAddress: (0), Previous publicPort: (0)
Thu Jan 20 09:47:09 2022 : L2TP clearing port-mapping for en0
Thu Jan 20 09:47:11 2022 : sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x62b2ff57> <pcomp> <accomp>]
Thu Jan 20 09:47:11 2022 : rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x62b2ff57> <pcomp> <accomp>]
Thu Jan 20 09:47:11 2022 : sent [LCP EchoReq id=0x0 magic=0x62b2ff57]
Thu Jan 20 09:47:11 2022 : rcvd [CHAP Challenge id=0x82 <bbb842cfd05b65391f0820f7ec1c1b72>, name = "xl2tpd"]
Thu Jan 20 09:47:11 2022 : sent [CHAP Response id=0x82 <a2927010ebf97d96742c7d737dfc48970000000000000000fc5ecb5fbcf32db7dae3b920fe97b4d44028989d613ddb3b00>, name = "sfalk"]
Thu Jan 20 09:47:11 2022 : rcvd [LCP EchoRep id=0x0 magic=0xfb54e2f3]
Thu Jan 20 09:47:11 2022 : rcvd [CHAP Success id=0x82 "S=AF62F9AD454798E796FDA8AF4F151B7204E6C838"]
Thu Jan 20 09:47:11 2022 : sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
Thu Jan 20 09:47:11 2022 : sent [IPV6CP ConfReq id=0x1 <addr fe80::f218:98ff:fe5f:11f2>]
Thu Jan 20 09:47:11 2022 : rcvd [IPCP ConfReq id=0x1 <addr 10.255.255.0>]
Thu Jan 20 09:47:11 2022 : ipcp: returning Configure-ACK
Thu Jan 20 09:47:11 2022 : sent [IPCP ConfAck id=0x1 <addr 10.255.255.0>]
Thu Jan 20 09:47:11 2022 : rcvd [IPCP ConfNak id=0x1 <addr 10.10.20.12> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 09:47:11 2022 : sent [IPCP ConfReq id=0x2 <addr 10.10.20.12> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 09:47:11 2022 : rcvd [LCP ProtRej id=0x3 80 57 01 01 00 0e 01 0a f2 18 98 ff fe 5f 11 f2]
Thu Jan 20 09:47:11 2022 : rcvd [IPCP ConfAck id=0x2 <addr 10.10.20.12> <ms-dns1 10.10.10.1> <ms-dns3 10.10.10.1>]
Thu Jan 20 09:47:11 2022 : ipcp: up
Thu Jan 20 09:47:11 2022 : local  IP address 10.10.20.12
Thu Jan 20 09:47:11 2022 : remote IP address 10.255.255.0
Thu Jan 20 09:47:11 2022 : primary   DNS address 10.10.10.1
Thu Jan 20 09:47:11 2022 : secondary DNS address 10.10.10.1
Thu Jan 20 09:47:11 2022 : Received protocol dictionaries
Thu Jan 20 09:47:11 2022 : l2tp_wait_input: Address added. previous interface setting (name: en0, address: 192.168.178.22), current interface setting (name: ppp0, family: PPP, address: 10.10.20.12, subnet: 255.0.0.0, destination: 10.255.255.0).
Thu Jan 20 09:47:11 2022 : Committed PPP store on install command
Thu Jan 20 09:47:11 2022 : rcvd [IPV6 data]
   60 00 00 00 00 24 00 01   00 00 00 00 00 00 00 00   '`....$..........'
   00 00 00 00 00 00 00 00   ff 02 00 00 00 00 00 00   '................'
   00 00 00 00 00 00 00 16   3a 00 05 02 00 00 01 00   '........:.......'
   8f 00 6e 8a 00 00 00 01   04 00 00 00 ff 02 00 00   '..n.............'
   00 00 00 00 00 00 00 00   00 00 00 02               '............'
Thu Jan 20 09:47:11 2022 : Unsupported protocol 0x57 received
Thu Jan 20 09:47:11 2022 : sent [LCP ProtRej id=0x2 00 57 60 00 00 00 00 24 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 02 00 00 00 00 ...]
Thu Jan 20 09:47:12 2022 : rcvd [IPV6 data]
   60 00 00 00 00 24 00 01   00 00 00 00 00 00 00 00   '`....$..........'
   00 00 00 00 00 00 00 00   ff 02 00 00 00 00 00 00   '................'
   00 00 00 00 00 00 00 16   3a 00 05 02 00 00 01 00   '........:.......'
   8f 00 6e 8a 00 00 00 01   04 00 00 00 ff 02 00 00   '..n.............'
   00 00 00 00 00 00 00 00   00 00 00 02               '............'
Thu Jan 20 09:47:12 2022 : Unsupported protocol 0x57 received
Thu Jan 20 09:47:12 2022 : sent [LCP ProtRej id=0x3 00 57 60 00 00 00 00 24 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 02 00 00 00 00 ...]
Thu Jan 20 09:48:39 2022 : L2TP received StopCCN
Thu Jan 20 09:48:39 2022 : L2TP hangup
Thu Jan 20 09:48:39 2022 : ipcp: down
Thu Jan 20 09:48:39 2022 : Connection terminated.
Thu Jan 20 09:48:39 2022 : L2TP clearing port-mapping for en0
Thu Jan 20 09:48:39 2022 : Connect time 1.6 minutes.
Thu Jan 20 09:48:39 2022 : Sent 87703 bytes, received 50878 bytes.
Thu Jan 20 09:48:39 2022 : L2TP disconnecting...
Thu Jan 20 09:48:39 2022 : L2TP sent CDN
Thu Jan 20 09:48:39 2022 : L2TP sent StopCCN
Thu Jan 20 09:48:39 2022 : L2TP disconnected
Preguntado el 24 de Enero, 2022 por Suhas Chikkanna

0 votos

Avatar de Davide Giraudo

Según osstatus.com este código corresponde a kDNSServiceErr_NATPortMappingUnsupported . En documentación para este es: La puerta de enlace NAT no soporta PCP, NAT-PMP o UPnP". Así que tal vez MacOS quiere establecer una asignación a través de UPnP en su puerta de enlace (router), pero no puede?

Comentado el 24 de Enero, 2022 por Davide Giraudo

0 votos

Avatar de Suhas Chikkanna

@DarkDust Hola, gracias por la sugerencia. No conocía osstatus.com hasta ahora. He comprobado en mi router y UPnP está activado. Todos los demás dispositivos aquí se conectan bien por lo que el problema podría apuntar al cliente VPN?

Comentado el 24 de Enero, 2022 por Suhas Chikkanna

0 votos

Avatar de Suhas Chikkanna

@DarkDust fyi también vi en el registro de eventos de mi router que los puertos 1701, 4500 y 500 se reenvían para mi dispositivo.

Comentado el 24 de Enero, 2022 por Suhas Chikkanna

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Suhas Chikkanna avatar
Suhas Chikkanna Puntos 36

Un colega mío tuvo la genial idea de volver a crear la conexión VPN dentro de los ajustes de red.

Me lo sugirió después de que pudiera conectarme a través del router utilizando mi PC privado sin problemas.

Así que la solución fue seleccionar la configuración de la VPN y un clic en [-] seguido de un clic en [+] :

enter image description here

No hay palabras para describir lo que siento por esto, pero por si acaso acabas aquí: Borra la conexión VPN y vuelve a crearla.

Todavía no lo sabemos:

  • Por qué no funcionó sobre mi router
  • Por qué funcionó a través del punto caliente del móvil
Respondido el 24 de Enero, 2022 por Suhas Chikkanna (36 Puntos )

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