Utilizar depuraciones IKEv2 de ASA para VPN de sitio a sitio con PSK
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Actualizado:4 de abril de 2024
ID del documento:115935
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Introducción
Este documento describe información sobre las depuraciones de Intercambio de claves de Internet versión 2 (IKEv2) en el Cisco Adaptive Security Appliance (ASA).
Prerequisites
Requirements
No hay requisitos específicos para este documento.
Componentes Utilizados
Este documento no tiene restricciones específicas en cuanto a versiones de software y de hardware.
La información que contiene este documento se creó a partir de los dispositivos en un ambiente de laboratorio específico. Todos los dispositivos que se utilizan en este documento se pusieron en funcionamiento con una configuración verificada (predeterminada). Si tiene una red en vivo, asegúrese de entender el posible impacto de cualquier comando.
Problema principal
El proceso de intercambio de paquetes que se utiliza en IKEv2 es radicalmente diferente del que se utiliza en IKEv1. Con IKEv1, hay un intercambio de fase 1 claramente delimitado que consta de seis paquetes y luego hay un intercambio de fase 2 que consta de tres paquetes. El intercambio IKEv2 es variable.
Sugerencia: para obtener información más detallada sobre las diferencias y una explicación del proceso de intercambio de paquetes, consulte Intercambio de Paquetes IKEv2 y Depuración de Nivel de Protocolo.
Depuraciones utilizadas
Estas dos depuraciones se utilizan para IKEv2:
debug crypto ikev2 protocol 127
debug crypto ikev2 platform 127
Configuraciones ASA
Esta sección proporciona ejemplos de configuraciones para ASA1 (el iniciador) y ASA2 (el respondedor).
ASA1
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 10.0.0.1 255.255.255.0
interface GigabitEthernet0/2
nameif inside
security-level 100
ip address 192.168.1.2 255.255.255.0
crypto ipsec ikev2 ipsec-proposal AES256
protocol esp encryption aes-256
protocol esp integrity sha-1 md5
access-list l2l_list extended permit ip host 192.168.1.1
host 192.168.2.99
access-list l2l_list extended permit ip host 192.168.1.12
host 192.168.2.99
crypto map outside_map 1 match address l2l_list
crypto map outside_map 1 set peer 10.0.0.2
crypto map outside_map 1 set ikev2 ipsec-proposal AES256
crypto map outside_map interface outside
crypto ikev2 policy 1
encryption aes-256
integrity sha
group 2
prf sha
lifetime seconds 86400
crypto ikev2 enable outside
tunnel-group 10.0.0.2 type ipsec-l2l
tunnel-group 10.0.0.2 ipsec-attributes
ikev2 remote-authentication pre-shared-key *****
ikev2 local-authentication pre-shared-key *****
ASA2
interface GigabitEthernet0/1
nameif outside
security-level 0
ip address 10.0.0.2 255.255.255.0
interface GigabitEthernet0/2
nameif inside
security-level 100
ip address 192.168.2.1 255.255.255.0
crypto ipsec ikev2 ipsec-proposal AES256
protocol esp encryption aes-256
protocol esp integrity sha-1 md5
access-list l2l_list extended permit ip host 192.168.2.99
host 192.168.1.1
access-list l2l_list extended permit ip host 192.168.2.99
host 192.168.1.12
crypto map outside_map 1 match address l2l_list
crypto map outside_map 1 set peer 10.0.0.1
crypto map outside_map 1 set ikev2 ipsec-proposal AES256
crypto map outside_map interface outside
crypto ikev2 policy 1
encryption aes-256
integrity sha
group 2
prf sha
lifetime seconds 86400
crypto ikev2 enable outside
tunnel-group 10.0.0.1 type ipsec-l2l
tunnel-group 10.0.0.1 ipsec-attributes
ikev2 remote-authentication pre-shared-key *****
ikev2 local-authentication pre-shared-key *****
Depuraciones
En esta sección se describen los debugs y las descripciones de mensajes de la negociación del túnel ASA1 (iniciador) y ASA2 (respondedor) y de la asociación de seguridad secundaria (SA).
Negociación de túnel
ASA1 recibe un paquete que coincide con la lista de control de acceso (ACL) crypto para el par ASA 10.0.0.2 e inicia la creación de SA:
IKEv2-PLAT-3: attempting to find tunnel
group for IP: 10.0.0.2
IKEv2-PLAT-3: mapped to tunnel group 10.0.0.2
using peer IP
IKEv2-PLAT-3: my_auth_method = 2
IKEv2-PLAT-3: supported_peers_auth_method = 2
IKEv2-PLAT-3: P1 ID = 0
IKEv2-PLAT-3: Translating IKE_ID_AUTO to = 255
IKEv2-PLAT-3: (16) tp_name set to:
IKEv2-PLAT-3: (16) tg_name set to: 10.0.0.2
IKEv2-PLAT-3: (16) tunn grp type set to: L2L
IKEv2-PLAT-5: New ikev2 sa request admitted
IKEv2-PLAT-5: Incrementing outgoing negotiating
sa count by one
El par inicial de mensajes que se envían son para el intercambio IKE_SA_INIT. Estos mensajes negocian los algoritmos criptográficos, intercambian nonces y realizan un intercambio Diffie-Hellman (DH).
Esta es la configuración relevante para ASA1:
crypto ikev2 policy 1
encryption aes-256
integrity sha
group 2
prf sha
lifetime seconds 86400
crypto ikev2 enable outside
Tunnel Group matching the identity name is present:
tunnel-group 10.0.0.2 type ipsec-l2l
tunnel-group 10.0.0.2 ipsec-attributes
ikev2 remote-authentication pre-shared-key *****
ikev2 local-authentication pre-shared-key *****
Este es el resultado de la depuración para este intercambio:
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: IDLE Event: EV_INIT_SA
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_GET_IKE_POLICY
IKEv2-PROTO-3: (16): Getting configured policies
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000
(I) MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_SET_POLICY
IKEv2-PROTO-3: (16): Setting configured policies
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_CHK_AUTH4PKI
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_GEN_DH_KEY
IKEv2-PROTO-3: (16): Computing DH public key
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_NO_EVENT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_OK_RECD_DH_PUBKEY_RESP
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=0000000000000000 (I)
MsgID = 00000000 CurState: I_BLD_INIT
Event: EV_GET_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
A continuación, ASA1 genera el paquete IKE_INIT_SA, que contiene:
- Encabezado ISAKMP (SPI/version/flags)
- SAi1 (algoritmo criptográfico que admite el iniciador IKE)
- KEi (valor de clave pública DH del iniciador)
- N (Iniciador Nonce)
R_SPI=0000000000000000 (I) MsgID = 00000000
CurState: I_BLD_INIT Event: EV_BLD_MSG
IKEv2-PROTO-2: (16): Sending initial message
IKEv2-PROTO-3: Tx [L 10.0.0.1:500/R 10.0.0.2:500/VRF i0:f0]
m_id: 0x0
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 -
r: 0000000000000000]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 0000000000000000
IKEv2-PROTO-4: Next payload: SA, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_SA_INIT,
flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x0, length: 338
SA Next payload: KE, reserved: 0x0,
length: 48
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 44 Proposal: 1, Protocol id: IKE,
SPI size: 0, #trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 2, reserved: 0x0, id: SHA1
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 4, reserved: 0x0,
id: DH_GROUP_1024_MODP/Group 2
KE Next payload: N, reserved: 0x0,
length: 136
DH group: 2, Reserved: 0x0
19 65 43 45 d2 72 a7 11 b8 a4 93 3f 44 95 6c b8
6d 5a f0 f8 1f f3 d4 b9 ff 41 7b 0d 13 90 82 cf
34 2e 74 e3 03 6e 9e 00 88 80 5d 86 2c 4c 79 35
ee e6 98 91 89 f3 48 83 75 09 02 f1 3c b1 7f f5
be 05 f1 fa 7e 8a 4c 43 eb a9 2c 3a 47 c0 68 40
f5 dd 02 9d a5 b5 a2 a6 90 64 95 fc 57 b5 69 e8
b2 4f 8e f2 a5 05 e3 c7 17 f9 c0 e0 c8 3e 91 ed
c1 09 23 3e e5 09 4f be 1a 6a d4 d9 fb 65 44 1d
N Next payload: VID, reserved: 0x0,
length: 24
84 8b 80 c2 52 6c 4f c7 f8 08 b8 ed! 52 af a2 f4
d5 dd d4 f4
VID Next payload: VID, reserved: 0x0,
length: 23
43 49 53 43 4f 2d 44 45 4c 45 54 45 2d 52 45 41
53 4f 4e
VID Next payload: VID, reserved: 0x0, length: 59
43 49 53 43 4f 28 43 4f 50 59 52 49 47 48 54 29
26 43 6f 70 79 72 69 67 68 74 20 28 63 29 20 32
30 30 39 20 43 69 73 63 6f 20 53 79 73 74 65 6d
73 2c 20 49 6e 63 2e
VID Next payload: NONE, reserved: 0x0, length: 20
40 48 b7 6e bc e8 85 25 e7 de 7f 00 d6 c2 d3
A continuación, ASA1 envía el paquete IKE_INIT_SA:
IKEv2-PLAT-4: SENT PKT [IKE_SA_INIT]
[10.0.0.1]:500->[10.0.0.2]:500
ASA2 recibe el paquete IKEV_INIT_SA:
IKEv2-PLAT-4: RECV PKT [IKE_SA_INIT]
[10.0.0.1]:500->[10.0.0.2]:500
InitSPI=0xdfa3b583a4369958 RespSPI=0x0000000000000000
MID=00000000
ASA2 inicia la creación de SA para ese par:
IKEv2-PROTO-3: Rx [L 10.0.0.2:500/R
10.0.0.1:500/VRF i0:f0] m_id: 0x0
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 -
r: 0000000000000000]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 0000000000000000
IKEv2-PROTO-4: Next payload: SA, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_SA_INIT,
flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x0, length: 338
IKEv2-PLAT-5: New ikev2 sa request admitted
IKEv2-PLAT-5: Incrementing incoming negotiating
sa count by one
SA Next payload: KE, reserved: 0x0, length: 48
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 44 Proposal: 1, Protocol id: IKE, SPI size: 0,
#trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 2, reserved: 0x0, id: SHA1
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 4, reserved: 0x0,
id: DH_GROUP_1024_MODP/Group 2
KE Next payload: N, reserved: 0x0, length: 136
DH group: 2, Reserved: 0x0
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: IDLE
Event: EV_RECV_INIT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
ASA2 verifica y procesa el mensaje IKE_INIT:
- Elige el conjunto de cifrado de los que ofrece ASA1.
- Computa su propia clave secreta DH.
- También calcula un valor SKEYID, del cual se pueden derivar todas las claves para este IKE_SA. Todos los encabezados de todos los mensajes que vienen después, excepto los que vienen a continuación, están cifrados y autenticados. Las claves que se utilizan para la protección de la integridad y el cifrado se derivan de SKEYID y se conocen como:
- SK_e se utiliza para el cifrado.
- SK_a se utiliza para la autenticación.
- SK_d se deriva y se utiliza para derivar material de claves adicional para CHILD_SAs. Se calcula un SK_e y un SK_a separados para cada dirección.
- SK_e se utiliza para el cifrado.
Esta es la configuración relevante para ASA2:
crypto ikev2 policy 1
encryption aes-256
integrity sha
group 2
prf sha
lifetime seconds 86400
crypto ikev2 enable outside
Tunnel Group matching the identity name is present:
tunnel-group 10.0.0.1 type ipsec-l2l
tunnel-group 10.0.0.1 ipsec-attributes
ikev2 remote-authentication pre-shared-key *****
ikev2 local-authentication pre-shared-key *****
Este es el resultado de la depuración:
MsgID = 00000000 CurState: R_INIT Event: EV_VERIFY_MSG
IKEv2-PROTO-3: (16): Verify SA init message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_INIT Event: EV_INSERT_SA
IKEv2-PROTO-3: (16): Insert SA
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_INIT
Event: EV_GET_IKE_POLICY
IKEv2-PROTO-3: (16): Getting configured policies
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_INIT Event:EV_PROC_MSG
IKEv2-PROTO-2: (16): Processing initial message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_INIT
Event: EV_DETECT_NAT
IKEv2-PROTO-3: (16): Process NAT discovery notify
IKEv2-PROTO-5: (16): No NAT found
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_INIT
Event: EV_CHK_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_SET_POLICY
IKEv2-PROTO-3: (16): Setting configured policies
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_CHK_AUTH4PKI
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_PKI_SESH_OPEN
IKEv2-PROTO-3: (16): Opening a PKI session
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_GEN_DH_KEY
IKEv2-PROTO-3: (16): Computing DH public key
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_NO_EVENT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_OK_RECD_DH_PUBKEY_RESP
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_GEN_DH_SECRET
IKEv2-PROTO-3: (16): Computing DH secret key
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_NO_EVENT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_OK_RECD_DH_SECRET_RESP
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_GEN_SKEYID
IKEv2-PROTO-3: (16): Generate skeyid
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000000 CurState: R_BLD_INIT
Event: EV_GET_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000000
CurState: R_BLD_INIT Event: EV_BLD_MSG
A continuación, ASA2 genera el mensaje de respuesta para el intercambio IKE_SA_INIT, que recibe ASA1. Este paquete contiene:
- Encabezado ISAKMP (SPI/versión/indicadores)
- SAr1 (algoritmo criptográfico que elige el respondedor IKE)
- KEr (valor de clave pública DH del respondedor)
- Responder Nonce
Este es el resultado de la depuración:
IKEv2-PROTO-2: (16): Sending initial message
IKEv2-PROTO-3: IKE Proposal: 1, SPI size: 0
(initial negotiation),
Num. transforms: 4
AES-CBC SHA1 SHA96 DH_GROUP_1024_MODP/Group 2
IKEv2-PROTO-5: Construct Vendor Specific Payload:
FRAGMENTATIONIKEv2-PROTO-3:
Tx [L 10.0.0.2:500/R 10.0.0.1:500/VRF i0:f0] m_id: 0x0
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: SA, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_SA_INIT,
flags: RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x0, length: 338
SA Next payload: KE, reserved: 0x0, length: 48
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 44 Proposal: 1, Protocol id: IKE, SPI size: 0,
#trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 2, reserved: 0x0, id: SHA1
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 4, reserved: 0x0,
id: DH_GROUP_1024_MODP/Group 2
KE Next payload: N, reserved: 0x0, length: 136
DH group: 2, Reserved: 0x0
ASA2 envía el mensaje de respuesta a ASA1:
IKEv2-PLAT-4: SENT PKT [IKE_SA_INIT]
[10.0.0.2]:500->[10.0.0.1]:500 InitSPI=0xdfa3b583a4369958
RespSPI=0x27c943c13fd94665 MID=00000000
ASA1 recibe el paquete de respuesta IKE_SA_INIT del ASA2:
IKEv2-PLAT-4: RECV PKT
[IKE_SA_INIT]
[10.0.0.2]:500->
[10.0.0.1]:500
InitSPI=0xdfa3b583a4369958
RespSPI=0x27c943c13fd94665
MID=00000000
ASA2 inicia el temporizador para el proceso de autorización:
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000000
CurState: INIT_DONE
Event: EV_DONE
IKEv2-PROTO-3: (16):
Fragmentation is
enabled
IKEv2-PROTO-3: (16): Cisco
DeleteReason Notify
is enabled
IKEv2-PROTO-3: (16): Complete
SA init exchange
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000000
CurState: INIT_DONE
Event: EV_CHK4_ROLE
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000000
CurState: INIT_DONE Event:
EV_START_TMR
IKEv2-PROTO-3: (16): Starting
timer to wait for auth
message (30 sec)
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000000
CurState: R_WAIT_AUTH
Event: EV_NO_EVENT
ASA1 verifica y procesa la respuesta:
- Se calcula la clave secreta DH del iniciador.
- Se generará el ID ESQUEYA del iniciador.
Este es el resultado de la depuración:
IKEv2-PROTO-3: Rx [L 10.0.0.1:500/R 10.0.0.2:500/VRF i0:f0]
m_id: 0x0
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: SA, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_SA_INIT,
flags: RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x0, length: 338
SA Next payload: KE, reserved: 0x0, length: 48
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 44 Proposal: 1, Protocol id: IKE, SPI size: 0,
#trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 2, reserved: 0x0, id: SHA1
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 4, reserved: 0x0,
id: DH_GROUP_1024_MODP/Group 2
KE Next payload: N, reserved: 0x0, length: 136
DH group: 2, Reserved: 0x0
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_WAIT_INIT
Event: EV_RECV_INIT
IKEv2-PROTO-5: (16): Processing initial message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_CHK4_NOTIFY
IKEv2-PROTO-2: (16): Processing initial message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_VERIFY_MSG
IKEv2-PROTO-3: (16): Verify SA init message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_PROC_MSG
IKEv2-PROTO-2: (16): Processing initial message
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_DETECT_NAT
IKEv2-PROTO-3: (16): Process NAT discovery notify
IKEv2-PROTO-3: (16): NAT-T is disabled
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_CHK_NAT_T
IKEv2-PROTO-3: (16): Check NAT discovery
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_PROC_INIT
Event: EV_CHK_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000000
CurState: INIT_DONE Event: EV_GEN_DH_SECRET
IKEv2-PROTO-3: (16): Computing DH secret key
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000000
CurState: INIT_DONE Event: EV_NO_EVENT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000000
CurState: INIT_DONE Event: EV_OK_RECD_DH_SECRET_RESP
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000000
CurState: INIT_DONE Event: EV_GEN_SKEYID
IKEv2-PROTO-3: (16): Generate skeyid
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: INIT_DONE Event: EV_DONE
IKEv2-PROTO-3: (16): Fragmentation is enabled
IKEv2-PROTO-3: (16): Cisco DeleteReason Notify is enabled
El intercambio IKE_INIT_SA entre los ASA ha finalizado:
IKEv2-PROTO-3: (16): Complete SA init exchange
ASA1 inicia el intercambio IKE_AUTH y comienza a generar la carga útil de autenticación. El paquete IKE_AUTH contiene:
- Encabezado ISAKMP (SPI/versión/indicadores)
- IDi (identidad del iniciador)
- carga de AUTH
- SAi2 (inicia SA, similar al intercambio de conjunto de transformación de fase 2 en IKEv1)
- TSi y TSr (selectores de tráfico de iniciador y respondedor)
Nota: TSi y TSr contienen la dirección de origen y de destino del iniciador y el respondedor respectivamente para reenviar/recibir tráfico cifrado. El rango de direcciones especifica que todo el tráfico hacia y desde ese rango se tuneliza. Si la propuesta es aceptable para el respondedor, devuelve cargas útiles de TS idénticas.
Además, el primer CHILD_SA se crea para el par proxy_ID que coincide con el paquete de desencadenador.
Esta es la configuración relevante para ASA1:
crypto ipsec
ikev2
ipsec-proposal
AES256
protocol esp
encryption
aes-256
protocol esp
integrity
sha-1 md5
access-list
l2l_list
extended
permit ip
host 10.0.0.2
host 10.0.0.1
Este es el resultado de la depuración:
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_GEN_AUTH
IKEv2-PROTO-3: (16): Generate my authentication data
IKEv2-PROTO-3: (16): Use preshared key for id 10.0.0.1,
key len 5
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_BLD_AUTH
Event: EV_CHK_AUTH_TYPE
IKEv2-PROTO-3: (16): Get my authentication method
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_BLD_AUTH
Event: EV_OK_AUTH_GEN
IKEv2-PROTO-3: (16): Check for EAP exchange
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (I)
MsgID = 00000000 CurState: I_BLD_AUTH
Event: EV_SEND_AUTH
IKEv2-PROTO-2: (16): Sending auth message
IKEv2-PROTO-5: Construct Vendor Specific Payload:
CISCO-GRANITE
IKEv2-PROTO-3: ESP Proposal: 1, SPI size: 4
(IPSec negotiation),
Num. transforms: 4
AES-CBC SHA96 MD596
IKEv2-PROTO-5: Construct Notify Payload: INITIAL_CONTACT
IKEv2-PROTO-5: Construct Notify Payload: ESP_TFC_NO_SUPPORT
IKEv2-PROTO-5: Construct Notify Payload: NON_FIRST_FRAGS
IKEv2-PROTO-3: (16): Building packet for encryption;
contents are:
VID Next payload: IDi, reserved: 0x0, length: 20
dd a3 b4 83 b7 01 6a 1f 3d b7 84 1a 75 e6 83 a6
IDi Next payload: AUTH, reserved: 0x0, length: 12
Id type: IPv4 address, Reserved: 0x0 0x0
47 01 01 01
AUTH Next payload: SA, reserved: 0x0, length: 28
Auth method PSK, reserved: 0x0, reserved 0x0
Auth data: 20 bytes
SA Next payload: TSi, reserved: 0x0, length: 52
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 48 Proposal: 1, Protocol id: ESP, SPI size: 4,
#trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: MD596
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
TSi Next payload: TSr, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.1, end addr: 192.168.1.1
TSr Next payload: NOTIFY, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
IKEv2-PROTO-3: Tx [L 10.0.0.1:500/R 10.0.0.2:500/VRF i0:f0]
m_id: 0x1
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_AUTH, flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x1, length: 284
ENCR Next payload: VID, reserved: 0x0, length: 256
Encrypted data: 252 bytes
ASA1 envía el paquete IKE_AUTH a ASA2:
IKEv2-PLAT-4: SENT PKT [IKE_AUTH]
[10.0.0.1]:500->[10.0.0.2]:500
InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665
MID=00000001
ASA2 recibe este paquete de ASA1:
IKEv2-PLAT-4: RECV PKT [IKE_AUTH]
[10.0.0.1]:500->[10.0.0.2]:500
InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665
MID=00000001
ASA2 detiene el temporizador de autorización y verifica los datos de autenticación que se reciben de ASA1. A continuación, genera sus propios datos de autenticación, exactamente igual que ASA1.
Esta es la configuración relevante para ASA2:
crypto ipsec
ikev2
ipsec-
proposal
AES256
protocol esp
encryption
aes-256
protocol esp
integrity
sha-1 md5
Este es el resultado de la depuración:
IKEv2-PROTO-3: Rx [L 10.0.0.2:500/R 10.0.0.1:500/VRF i0:f0]
m_id: 0x1
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_AUTH, flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x1, length: 284
IKEv2-PROTO-5: (16): Request has mess_id 1;
expected 1 through 1 REAL Decrypted packet:
Data: 216 bytes
IKEv2-PROTO-5: Parse Vendor Specific Payload: (CUSTOM) VID
Next payload: IDi, reserved: 0x0, length: 20
dd a3 b4 83 b7 01 6a 1f 3d b7 84 1a 75 e6 83 a6
IDi Next payload: AUTH, reserved: 0x0, length: 12
Id type: IPv4 address, Reserved: 0x0 0x0
47 01 01 01
AUTH Next payload: SA, reserved: 0x0, length: 28
Auth method PSK, reserved: 0x0, reserved 0x0
Auth data: 20 bytes
SA Next payload: TSi, reserved: 0x0, length: 52
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 48 Proposal: 1, Protocol id: ESP, SPI size: 4,
#trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: MD596
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
TSi Next payload: TSr, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.1, end addr: 192.168.1.1
TSr Next payload: NOTIFY, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000001
CurState: R_WAIT_AUTH Event: EV_RECV_AUTH
IKEv2-PROTO-3: (16): Stopping timer to wait for auth
message
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000001
CurState: R_WAIT_AUTH Event: EV_CHK_NAT_T
IKEv2-PROTO-3: (16): Check NAT discovery
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000001
CurState: R_WAIT_AUTH Event: EV_PROC_ID
IKEv2-PROTO-2: (16): Recieved valid parameteres in
process id
IKEv2-PLAT-3: (16) peer auth method set to: 2
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000001
CurState: R_WAIT_AUTH
Event: EV_CHK_IF_PEER_CERT_NEEDS_TO_BE_FETCHED_FOR_
PROF_SEL
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R) MsgID = 00000001
CurState: R_WAIT_AUTH Event: EV_GET_POLICY_BY_PEERID
IKEv2-PROTO-3: (16): Getting configured policies
IKEv2-PLAT-3: attempting to find tunnel group for
ID: 10.0.0.1
IKEv2-PLAT-3: mapped to tunnel group 10.0.0.1 using
phase 1 ID
IKEv2-PLAT-3: (16) tg_name set to: 10.0.0.1
IKEv2-PLAT-3: (16) tunn grp type set to: L2L
IKEv2-PLAT-3: my_auth_method = 2
IKEv2-PLAT-3: supported_peers_auth_method = 2
IKEv2-PLAT-3: P1 ID = 0
IKEv2-PLAT-3: Translating IKE_ID_AUTO to = 255
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_WAIT_AUTH
Event: EV_SET_POLICY
IKEv2-PROTO-3: (16): Setting configured policies
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_WAIT_AUTH
Event: EV_VERIFY_POLICY_BY_PEERID
IKEv2-PROTO-3: (16): Verify peer's policy
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: R_WAIT_AUTH Event: EV_CHK_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_WAIT_AUTH
Event: EV_CHK_AUTH4EAP
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_WAIT_AUTH
Event: EV_CHK_POLREQEAP
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_CHK_AUTH_TYPE
IKEv2-PROTO-3: (16): Get peer authentication method
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_GET_PRESHR_KEY
IKEv2-PROTO-3: (16): Get peer's preshared key for 10.0.0.1
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_VERIFY_AUTH
IKEv2-PROTO-3: (16): Verify authentication data
IKEv2-PROTO-3: (16): Use preshared key for id 10.0.0.1,
key len 5
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_GET_CONFIG_MODE
IKEv2-PLAT-2: Build config mode reply: no request stored
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_CHK4_IC
IKEv2-PROTO-3: (16): Processing initial contact
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_CHK_REDIRECT
IKEv2-PROTO-5: (16): Redirect check is not needed,
skipping it
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_PROC_SA_TS
IKEv2-PROTO-2: (16): Processing auth message
IKEv2-PLAT-3: Selector received from peer is accepted
IKEv2-PLAT-3: PROXY MATCH on crypto map
outside_map seq 1
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_NO_EVENT
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_VERIFY_AUTH
Event: EV_OK_RECD_IPSEC_RESP
IKEv2-PROTO-2: (16): Processing auth message
ASA2 envía el paquete IKE_AUTH, que contiene:
- Encabezado ISAKMP (SPI/versión/indicadores)
- IDr (identidad del respondedor)
- carga de AUTH
- SAr2 (inicia SA, similar al intercambio de conjunto de transformación de fase 2 en IKEv1)
- TSi y TSr (selectores de tráfico de iniciador y respondedor)
Nota: TSi y TSr contienen la dirección de origen y de destino del iniciador y el respondedor respectivamente para reenviar/recibir tráfico cifrado. El rango de direcciones especifica que todo el tráfico hacia y desde ese rango se tuneliza. Estos parámetros son idénticos a los recibidos de ASA1.
Este es el resultado de la depuración:
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_MY_AUTH_METHOD
IKEv2-PROTO-3: (16): Get my authentication method
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_GET_PRESHR_KEY
IKEv2-PROTO-3: (16): Get peer's preshared key for 10.0.0.1
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_GEN_AUTH
IKEv2-PROTO-3: (16): Generate my authentication data
IKEv2-PROTO-3: (16): Use preshared key for id 10.0.0.2,
key len 5
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_CHK4_SIGN
IKEv2-PROTO-3: (16): Get my authentication method
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_OK_AUTH_GEN
IKEv2-PROTO-5: (16): SM Trace->
SA: I_SPI=DFA3B583A4369958 R_SPI=27C943C13FD94665 (R)
MsgID = 00000001 CurState: R_BLD_AUTH
Event: EV_SEND_AUTH
IKEv2-PROTO-2: (16): Sending auth message
IKEv2-PROTO-5: Construct Vendor Specific Payload:
CISCO-GRANITE
IKEv2-PROTO-3: ESP Proposal: 1, SPI size: 4 (IPSec
negotiation),
Num. transforms: 3
AES-CBC SHA96
IKEv2-PROTO-5: Construct Notify Payload:
ESP_TFC_NO_SUPPORTIKEv2-PROTO-5:
Construct Notify Payload: NON_FIRST_FRAGSIKEv2-PROTO-3:
(16):
Building packet for encryption; contents are:
VID Next payload: IDr, reserved: 0x0, length: 20
25 c9 42 c1 2c ee b5 22 3d b7 84 1a 75 e6 83 a6
IDr Next payload: AUTH, reserved: 0x0,
length: 12 Id type: IPv4 address, Reserved: 0x0 0x0
51 01 01 01
AUTH Next payload: SA, reserved: 0x0,
length: 28 Auth method PSK, reserved: 0x0, reserved 0x0
Auth data: 20 bytes
SA Next payload: TSi, reserved: 0x0,
length: 44 IKEv2-PROTO-4: last proposal: 0x0,
reserved: 0x0, length: 40
Proposal: 1, Protocol id: ESP, SPI size: 4, #trans: 3
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
TSi Next payload: TSr, reserved: 0x0,
length: 24 Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.1, end addr: 192.168.1.1
TSr Next payload: NOTIFY, reserved: 0x0,
length: 24 Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
NOTIFY(ESP_TFC_NO_SUPPORT) Next payload: NOTIFY,
reserved: 0x0, length: 8 Security protocol id: IKE,
spi size: 0, type: ESP_TFC_NO_SUPPORT
NOTIFY(NON_FIRST_FRAGS) Next payload: NONE, reserved: 0x0,
length: 8 Security protocol id: IKE, spi size: 0,
type: NON_FIRST_FRAGS
IKEv2-PROTO-3: Tx [L 10.0.0.2:500/R 10.0.0.1:500/VRF i0:f0]
m_id: 0x1
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_AUTH, flags:
RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x1, length: 236
ENCR Next payload: VID, reserved: 0x0, length: 208
Encrypted data: 204 bytes
ASA2 envía la respuesta para el paquete IKE_AUTH:
IKEv2-PLAT-4: SENT PKT [IKE_AUTH]
[10.0.0.2]:500->[10.0.0.1]:500
InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665
MID=00000001
ASA1 recibe la respuesta de ASA2:
IKEv2-PLAT-4:
RECV PKT [IKE_AUTH]
[10.0.0.2]:500->
[10.0.0.1]:500
InitSPI=0xdfa3b583a4369958
RespSPI=0x27c943c13fd94665
MID=00000001
ASA2 inserta una entrada en la base de datos SA (SAD):
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_OK
IKEv2-PROTO-5: (16): Action:
Action_Null
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_PKI_SESH_CLOSE
IKEv2-PROTO-3: (16): Closing
the PKI session
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_INSERT_IKE
IKEv2-PROTO-2: (16):
SA created;
inserting SA into database
ASA1 verifica y procesa los datos de autenticación en este paquete, y luego inserta esta SA en su SAD:
IKEv2-PROTO-3: Rx [L 10.0.0.1:500/R 10.0.0.2:500/VRF i0:f0]
m_id: 0x1
IKEv2-PROTO-3: HDR[i:DFA3B583A4369958 - r: 27C943C13FD94665]
IKEv2-PROTO-4: IKEV2 HDR ispi: DFA3B583A4369958 -
rspi: 27C943C13FD94665
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: IKE_AUTH,
flags: RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x1, length: 236
REAL Decrypted packet:Data: 168 bytes
IKEv2-PROTO-5: Parse Vendor Specific Payload: (CUSTOM) VID
Next payload: IDr, reserved: 0x0, length: 20
25 c9 42 c1 2c ee b5 22 3d b7 84 1a 75 e6 83 a6
IDr Next payload: AUTH, reserved: 0x0, length: 12
Id type: IPv4 address, Reserved: 0x0 0x0
51 01 01 01
AUTH Next payload: SA, reserved: 0x0, length: 28
Auth method PSK, reserved: 0x0, reserved 0x0
Auth data: 20 bytes
SA Next payload: TSi, reserved: 0x0, length: 44
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 40 Proposal: 1, Protocol id: ESP, SPI size: 4,
#trans: 3
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
TSi Next payload: TSr, reserved: 0x0,
length: 24 Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.1, end addr: 192.168.1.1
TSr Next payload: NOTIFY, reserved: 0x0,
length: 24 Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
IKEv2-PROTO-5: Parse Notify Payload:
ESP_TFC_NO_SUPPORT NOTIFY(ESP_TFC_NO_SUPPORT)
Next payload: NOTIFY, reserved: 0x0, length: 8
Security protocol id: IKE, spi size: 0,
type: ESP_TFC_NO_SUPPORT
IKEv2-PROTO-5: Parse Notify Payload:
NON_FIRST_FRAGS NOTIFY(NON_FIRST_FRAGS) Next payload:
NONE, reserved: 0x0, length: 8
Security protocol id: IKE, spi size: 0,
type: NON_FIRST_FRAGS
Decrypted packet:Data: 236 bytes
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_WAIT_AUTH Event: EV_RECV_AUTH
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_CHK4_NOTIFY
IKEv2-PROTO-2: (16): Process auth response notify
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_PROC_MSG
IKEv2-PLAT-3: (16) peer auth method set to: 2
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH
Event: EV_CHK_IF_PEER_CERT_NEEDS_TO_BE_FETCHED_
FOR_PROF_SEL
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_GET_POLICY_BY_PEERID
IKEv2-PROTO-3: (16): Getting configured policies
IKEv2-PLAT-3: connection initiated with tunnel
group 10.0.0.2
IKEv2-PLAT-3: (16) tg_name set to: 10.0.0.2
IKEv2-PLAT-3: (16) tunn grp type set to: L2L
IKEv2-PLAT-3: my_auth_method = 2
IKEv2-PLAT-3: supported_peers_auth_method = 2
IKEv2-PLAT-3: P1 ID = 0
IKEv2-PLAT-3: Translating IKE_ID_AUTO to = 255
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_VERIFY_POLICY_BY_PEERID
IKEv2-PROTO-3: (16): Verify peer's policy
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_CHK_AUTH_TYPE
IKEv2-PROTO-3: (16): Get peer authentication method
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_GET_PRESHR_KEY
IKEv2-PROTO-3: (16): Get peer's preshared key for 10.0.0.2
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_VERIFY_AUTH
IKEv2-PROTO-3: (16): Verify authentication data
IKEv2-PROTO-3: (16): Use preshared key for id 10.0.0.2,
key len 5
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_CHK_EAP
IKEv2-PROTO-3: (16): Check for EAP exchange
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_CHK_CONFIG_MODE
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_CHK_IKE_ONLY
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: I_PROC_AUTH Event: EV_PROC_SA_TS
IKEv2-PROTO-2: (16): Processing auth message
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: AUTH_DONE Event: EV_OK
IKEv2-PROTO-5: (16): Action: Action_Null
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: AUTH_DONE Event: EV_PKI_SESH_CLOSE
IKEv2-PROTO-3: (16): Closing the PKI session
IKEv2-PROTO-5: (16): SM Trace-> SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I) MsgID = 00000001
CurState: AUTH_DONE Event: EV_INSERT_IKE
IKEv2-PROTO-2: (16): SA created; inserting SA into
database
El túnel está ahora activo para ASA1:
CONNECTION
STATUS: UP...
peer: 10.0.0.2:500,
phase1_id: 10.0.0.2
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_REGISTER_SESSION
El túnel está ahora activo para ASA2:
CONNECTION
STATUS: UP...
peer: 10.0.0.1:500,
phase1_id: 10.0.0.1
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_REGISTER_SESSION
Nota: El túnel del respondedor generalmente se activa antes del túnel del iniciador.
El proceso de registro de IKEv2 ocurre en ASA1:
IKEv2-PLAT-3: (16)
connection
auth hdl set to 15
IKEv2-PLAT-3: AAA conn
attribute retrieval
successfully queued
for register session
request.
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (I)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_NO_EVENT
IKEv2-PLAT-3: (16) idle
timeout set to: 30
IKEv2-PLAT-3: (16) session
timeout set to: 0
IKEv2-PLAT-3: (16) group
policy set to
DfltGrpPolicy
IKEv2-PLAT-3: (16) class
attr set
IKEv2-PLAT-3: (16) tunnel
protocol set to: 0x5c
IKEv2-PLAT-3: IPv4 filter
ID not configured
for connection
IKEv2-PLAT-3: (16) group
lock set to: none
IKEv2-PLAT-3: IPv6 filter ID
not configured
for connection
IKEv2-PLAT-3: (16)
connection attribues
set valid to TRUE
IKEv2-PLAT-3: Successfully
retrieved conn attrs
IKEv2-PLAT-3: Session
registration after conn
attr retrieval
PASSED, No error
IKEv2-PLAT-3:
CONNECTION STATUS:
REGISTERED...
peer: 10.0.0.2:500,
phase1_id: 10.0.0.2
El proceso de registro de IKEv2 ocurre en ASA2:
IKEv2-PLAT-3: (16)
connection
auth hdl set to 15
IKEv2-PLAT-3: AAA conn
attribute retrieval
successfully queued for
register session request.
IKEv2-PROTO-3: (16):
IKEv2-PROTO-5: (16):
SM Trace->
SA: I_SPI=DFA3B583A4369958
R_SPI=27C943C13FD94665 (R)
MsgID = 00000001
CurState: AUTH_DONE
Event: EV_NO_EVENT
IKEv2-PLAT-3: (16) idle
timeout
set to: 30
IKEv2-PLAT-3: (16) session
timeout
set to: 0
IKEv2-PLAT-3: (16) group
policy set to
DfltGrpPolicy
IKEv2-PLAT-3: (16) class
attr set
IKEv2-PLAT-3: (16) tunnel
protocol set to: 0x5c
IKEv2-PLAT-3: IPv4 filter ID
not configured
for connection
IKEv2-PLAT-3: (16) group
lock set to: none
IKEv2-PLAT-3: IPv6 filter ID
not configured
for connection
attribues set
valid to TRUE
IKEv2-PLAT-3: Successfully
retrieved conn attrs
IKEv2-PLAT-3: Session
registration after conn
attr retrieval PASSED,
No error
IKEv2-PLAT-3:
CONNECTION STATUS:
REGISTERED...
peer: 10.0.0.1:500,
phase1_id: 10.0.0.1
Depuraciones SA secundarias
Nota: Este intercambio consta de un solo par de solicitud y respuesta, y se denomina intercambio de fase 2 en IKEv1. Puede ser iniciado por cualquiera de los extremos de IKE_SA después de que se completen los intercambios iniciales.
ASA2 inicia el intercambio CHILD_SA. Esta es la solicitud CREATE_CHILD_SA. El paquete CHILD_SA normalmente contiene:
- SA HDR: contiene version.flags y el tipo de intercambio.
- Nonce Ni (opcional): si se crea CHILD_SA como parte del intercambio inicial, no se debe enviar una segunda carga útil de intercambio de claves (KE) ni nonce.
- Carga útil de SA
- KEi (clave opcional): la solicitud CREATE_CHILD_SA puede contener opcionalmente una carga útil KE para un intercambio DH adicional con el fin de habilitar garantías más sólidas de confidencialidad de reenvío para CHILD_SA. Si las ofertas SA incluyen diferentes grupos DH, el KEi debe ser un elemento del grupo que el iniciador espera que acepte el respondedor. Si se calcula que no es correcto, el intercambio CREATE_CHILD_SA falla y tiene que volver a intentarlo con una KEi diferente.
- N (carga útil de notificación, opcional): la carga útil de notificación se utiliza para transmitir datos informativos, como condiciones de error y transiciones de estado, a un par IKE. Una carga útil de notificación puede aparecer en un mensaje de respuesta (normalmente especifica por qué se rechaza una solicitud), en un intercambio de información (para informar de un error que no está en una solicitud IKE) o en cualquier otro mensaje para indicar las capacidades del remitente o para modificar el significado de la solicitud. Si este intercambio CREATE_CHILD_SA regenera una SA actual distinta de IKE_SA, la carga útil de N de lead de tipo REKEY_SA debe identificar la SA que se regenera. Si este intercambio CREATE_CHILD_SA no vuelve a generar una SA actual, se debe omitir la carga N.
- TSi y TSr (opcional): Muestra los selectores de tráfico para los que se crea la SA. En este caso, está entre los hosts 192.168.1.12 y 192.168.2.99.
Aquí está el resultado de la depuración CREATE_CHILD_SA:
IKEv2-PLAT-5: INVALID PSH HANDLE
IKEv2-PLAT-3: attempting to find tunnel group
for IP: 10.0.0.1
IKEv2-PLAT-3: mapped to tunnel group 10.0.0.1
using peer IP
IKEv2-PLAT-3: my_auth_method = 2
IKEv2-PLAT-3: supported_peers_auth_method = 2
IKEv2-PLAT-3: P1 ID = 0
IKEv2-PLAT-3: Translating IKE_ID_AUTO to = 255
IKEv2-PLAT-3: (226) tp_name set to:
IKEv2-PLAT-3: (226) tg_name set to: 10.0.0.1
IKEv2-PLAT-3: (226) tunn grp type set to: L2L
IKEv2-PLAT-3: PSH cleanup
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001 CurState: READY
Event: EV_INIT_CREATE_CHILD
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001 CurState: CHILD_I_INIT
Event: EV_INIT_CREATE_CHILD
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001 CurState: CHILD_I_IPSEC
Event: EV_INIT_CREATE_CHILD
IKEv2-PROTO-3: (225): Check for IPSEC rekey
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001 CurState: CHILD_I_IPSEC
Event: EV_SET_IPSEC_DH_GRP
IKEv2-PROTO-3: (225): Set IPSEC DH group
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001
CurState: CHILD_I_IPSEC Event: EV_CHK4_PFS
IKEv2-PROTO-3: (225): Checking for PFS configuration
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7
(I) MsgID = 00000001 CurState: CHILD_I_IPSEC
Event: EV_BLD_MSG
IKEv2-PROTO-2: (225): Sending child SA exchange
IKEv2-PROTO-3: ESP Proposal: 1, SPI size: 4
(IPSec negotiation), num. transforms: 4
AES-CBC SHA96 MD596
IKEv2-PROTO-3: (225): Building packet for encryption;
contents are:
SA Next payload: N, reserved: 0x0, length: 52
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 48 Proposal: 1, Protocol id: ESP,
SPI size: 4, #trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: MD596
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
N Next payload: TSi, reserved: 0x0, length: 24
2d 3e ec 11 e0 c7 5d 67 d5 23 25 76 1d 50 0d 05
fa b7 f0 48
TSi Next payload: TSr, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
TSr Next payload: NONE, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.12, end addr: 192.168.1.12
IKEv2-PROTO-3: (225): Checking if request will fit in
peer window
IKEv2-PROTO-3: Tx [L 10.0.0.2:500/R 10.0.0.1:500/VRF i0:f0]
m_id: 0x6
IKEv2-PROTO-3: HDR[i:FD366326E1FED6FE -
r: A75B9B2582AAECB7]
IKEv2-PROTO-4: IKEV2 HDR ispi: FD366326E1FED6FE -
rspi: A75B9B2582AAECB7
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: CREATE_CHILD_SA,
flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x6, length: 180
ENCR Next payload: SA, reserved: 0x0, length: 152
Encrypted data: 148 bytes
ASA2 envía este paquete y espera la respuesta:
IKEv2-PLAT-4: SENT PKT
[CREATE_CHILD_SA]
[10.0.0.2]:500->
[10.0.0.1]:500
InitSPI=0xfd366326e1fed6fe
RespSPI=0xa75b9b2582aaecb7
MID=00000006
IKEv2-PROTO-5: (225):
SM Trace->
SA: I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006
CurState: CHILD_I_WAIT
Event: EV_NO_EVENT
ASA1 recibe el paquete:
IKEv2-PLAT-4:
RECV PKT [CREATE_CHILD_SA]
[10.0.0.2]:500->
[10.0.0.1]:500
InitSPI=0xfd366326e1fed6fe
RespSPI=0xa75b9b2582aaecb7
MID=00000006
IKEv2-PROTO-3: Rx
[L 10.0.0.1:500/R
10.0.0.2:500/VRF i0:f0]
m_id: 0x6
ASA1 recibe este paquete exacto de ASA2 y lo verifica:
IKEv2-PROTO-3: HDR[i:FD366326E1FED6FE -
r: A75B9B2582AAECB7]
IKEv2-PROTO-4: IKEV2 HDR ispi: FD366326E1FED6FE -
rspi: A75B9B2582AAECB7
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: CREATE_CHILD_SA,
flags: INITIATOR
IKEv2-PROTO-4: Message id: 0x6, length: 180
IKEv2-PROTO-5: (225): Request has mess_id 6;
expected 6 through 6
REAL Decrypted packet:Data: 124 bytes
SA Next payload: N, reserved: 0x0, length: 52
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 48 Proposal: 1, Protocol id: ESP,
SPI size: 4, #trans: 4
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 ype: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: MD596
IKEv2-PROTO-4: last transform: 0x0, reserved: 0x0:
length: 8 type: 5, reserved: 0x0, id:
N Next payload: TSi, reserved: 0x0, length: 24
2d 3e ec 11 e0 c7 5d 67 d5 23 25 76 1d 50 0d 05
fa b7 f0 48
TSi Next payload: TSr, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99, end addr: 192.168.2.99
TSr Next payload: NONE, reserved: 0x0, length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0, length: 16
start port: 0, end port: 65535
start addr: 192.168.1.12, end addr: 192.168.1.12
Decrypted packet:Data: 180 bytes
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState: READY
Event: EV_RECV_CREATE_CHILD
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState: CHILD_R_INIT
Event: EV_RECV_CREATE_CHILD
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState: CHILD_R_INIT
Event: EV_VERIFY_MSG
IKEv2-PROTO-3: (225): Validating create child message
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 urState: CHILD_R_INIT
Event: EV_CHK_CC_TYPE
ASA1 ahora genera la respuesta para el intercambio CHILD_SA. Esta es la respuesta CREATE_CHILD_SA. El paquete CHILD_SA normalmente contiene:
- SA HDR: contiene version.flags y el tipo de intercambio.
- Nonce Ni (opcional): Si se crea CHILD_SA como parte del intercambio inicial, no se debe enviar una segunda carga KE ni nonce.
- Carga útil de SA
- KEi (clave, opcional): la solicitud CREATE_CHILD_SA puede contener opcionalmente una carga útil KE para un intercambio DH adicional con el fin de habilitar garantías más sólidas de confidencialidad de reenvío para CHILD_SA. Si las ofertas SA incluyen diferentes grupos DH, el KEi debe ser un elemento del grupo que el iniciador espera que acepte el respondedor. Si se calcula que no es correcto, el intercambio CREATE_CHILD_SA falla y debe volver a intentarlo con una KEi diferente.
- N (carga útil de notificación, opcional): la carga útil de notificación se utiliza para transmitir datos informativos, como condiciones de error y transiciones de estado, a un par IKE. Una carga útil de notificación puede aparecer en un mensaje de respuesta (normalmente especifica por qué se rechaza una solicitud), en un intercambio de información (para informar de un error que no está en una solicitud IKE) o en cualquier otro mensaje para indicar las capacidades del remitente o para modificar el significado de la solicitud. Si este intercambio CREATE_CHILD_SA regenera una SA actual distinta de IKE_SA, la carga útil de N de lead de tipo REKEY_SA debe identificar la SA que se regenera. Si este intercambio CREATE_CHILD_SA no vuelve a generar una SA actual, se debe omitir la carga N.
- TSi y TSr (opcional): Muestra los selectores de tráfico para los que se crea la SA. En este caso, está entre los hosts 192.168.1.12 y 192.168.2.99.
Este es el resultado de la depuración:
IKEv2-PROTO-3: (225): Check for create child
response message type
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState: CHILD_R_IPSEC
Event: EV_PROC_MSG
IKEv2-PROTO-2: (225): Processing child
SA exchange
IKEv2-PLAT-3: Selector received from peer
is accepted
IKEv2-PLAT-3: PROXY MATCH on crypto map
outside_map seq 1
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_IPSEC Event: EV_NO_EVENT
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000005
CurState: EXIT Event: EV_FREE_NEG
IKEv2-PROTO-5: (225): Deleting negotiation context
for peer message ID: 0x5
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_IPSEC
Event: EV_OK_RECD_IPSEC_RESP
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_IPSEC Event: EV_PROC_MSG
IKEv2-PROTO-2: (225): Processing child SA exchange
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState:
CHILD_R_IPSEC Event: EV_SET_IPSEC_DH_GRP
IKEv2-PROTO-3: (225): Set IPSEC DH group
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_IPSEC Event: EV_OK
IKEv2-PROTO-3: (225): Requesting SPI from IPSec
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_WAIT_SPI Event: EV_OK_GOT_SPI
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_BLD_MSG Event: EV_CHK4_PFS
IKEv2-PROTO-3: (225): Checking for PFS configuration
IKEv2-PROTO-5: (225): SM Trace->
SA:I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R) MsgID = 00000006
CurState: CHILD_R_BLD_MSG Event: EV_BLD_MSG
IKEv2-PROTO-2: (225): Sending child SA exchange
IKEv2-PROTO-3: ESP Proposal: 1, SPI size: 4
(IPSec negotiation),
Num. transforms: 3
AES-CBC SHA96
IKEv2-PROTO-3: (225): Building packet for encryption;
contents are:
SA Next payload: N, reserved: 0x0, length: 44
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 40
Proposal: 1, Protocol id: ESP, SPI size: 4,
#trans: 3
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12
type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8
type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0,
reserved: 0x0: length: 8
type: 5, reserved: 0x0, id:
N Next payload: TSi, reserved: 0x0,
length: 24
b7 6a c6 75 53 55 99 5a df ee 05
18 1a 27 a6 cb
01 56 22 ad
TSi Next payload: TSr, reserved: 0x0,
length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0,
length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99,
end addr: 192.168.2.99
TSr Next payload: NONE, reserved: 0x0,
length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0,
length: 16
start port: 0, end port: 65535
start addr: 192.168.1.12, end addr: 192.168.1.12
IKEv2-PROTO-3: Tx
[L 10.0.0.1:500/R 10.0.0.2:500/VRF i0:f0]
m_id: 0x6
IKEv2-PROTO-3: HDR[i:FD366326E1FED6FE -
r: A75B9B2582AAECB7]
IKEv2-PROTO-4: IKEV2 HDR ispi: FD366326E1FED6FE -
rspi: A75B9B2582AAECB7
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: CREATE_CHILD_SA,
flags: RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x6, length: 172
ENCR Next payload: SA, reserved: 0x0,
length: 144
Encrypted data: 140 bytes
ASA1 envía la respuesta:
IKEv2-PLAT-4: SENT PKT
[CREATE_CHILD_SA]
[10.0.0.1]:500->
[10.0.0.2]:500
InitSPI=0xfd366326e1fed6fe
RespSPI=0xa75b9b2582aaecb7
MID=00000006
ASA2 recibe el paquete:
IKEv2-PLAT-4:
RECV PKT [CREATE_CHILD_SA]
[10.0.0.1]:500->
[10.0.0.2]:500
InitSPI=0xfd366326e1fed6fe
RespSPI=0xa75b9b2582aaecb7
MID=00000006
IKEv2-PROTO-3: Rx
[L 10.0.0.2:500/R
10.0.0.1:500/VRF i0:f0]
m_id: 0x6
ASA2 ahora verifica el paquete:
IKEv2-PROTO-3: HDR[i:FD366326E1FED6FE -
r: A75B9B2582AAECB7]
IKEv2-PROTO-4: IKEV2 HDR ispi: FD366326E1FED6FE -
rspi: A75B9B2582AAECB7
IKEv2-PROTO-4: Next payload: ENCR, version: 2.0
IKEv2-PROTO-4: Exchange type: CREATE_CHILD_SA,
flags: RESPONDER MSG-RESPONSE
IKEv2-PROTO-4: Message id: 0x6, length: 172
REAL Decrypted packet:Data: 116 bytes
SA Next payload: N, reserved: 0x0, length: 44
IKEv2-PROTO-4: last proposal: 0x0, reserved: 0x0,
length: 40 Proposal: 1, Protocol id: ESP, SPI size: 4,
#trans: 3
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 12 type: 1, reserved: 0x0, id: AES-CBC
IKEv2-PROTO-4: last transform: 0x3, reserved: 0x0:
length: 8 type: 3, reserved: 0x0, id: SHA96
IKEv2-PROTO-4: last transform: 0x0,
reserved: 0x0: length: 8 type: 5, reserved: 0x0, id:
N Next payload: TSi, reserved: 0x0,
length: 24
b7 6a c6 75 53 55 99 5a df ee 05 18
1a 27 a6 cb
01 56 22 ad
TSi Next payload: TSr, reserved: 0x0,
length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0,
length: 16
start port: 0, end port: 65535
start addr: 192.168.2.99,
end addr: 192.168.2.99
TSr Next payload: NONE, reserved: 0x0,
length: 24
Num of TSs: 1, reserved 0x0, reserved 0x0
TS type: TS_IPV4_ADDR_RANGE, proto id: 0,
length: 16
start port: 0, end port: 65535
start addr: 192.168.1.12,
end addr: 192.168.1.12
Decrypted packet:Data: 172 bytes
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006 CurState:
CHILD_I_WAIT Event: EV_RECV_CREATE_CHILD
IKEv2-PROTO-5: (225): Action: Action_Null
IKEv2-PROTO-5: (225): SM Trace-> SA: I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (I) MsgID = 00000006
CurState: CHILD_I_PROC Event: EV_CHK4_NOTIFY
IKEv2-PROTO-2: (225): Processing any notify-messages
in child SA exchange
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006 CurState: CHILD_I_PROC
Event: EV_VERIFY_MSG
IKEv2-PROTO-3: (225): Validating create child message
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006 CurState: CHILD_I_PROC
Event: EV_PROC_MSG
IKEv2-PROTO-2: (225): Processing child SA exchange
IKEv2-PROTO-5: (225): SM Trace->
SA: I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (
I) MsgID = 00000006 CurState: CHILD_I_PROC
Event: EV_CHK4_PFS
IKEv2-PROTO-3: (225): Checking for PFS configuration
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006 CurState: CHILD_I_PROC
Event: EV_CHK_IKE_REKEY
IKEv2-PROTO-3: (225): Checking if IKE SA rekey
IKEv2-PROTO-5: (225): SM Trace-> SA:
I_SPI=FD366326E1FED6FE R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006 CurState: CHILD_I_PROC
Event: EV_GEN_LOAD_IPSEC
IKEv2-PROTO-3: (225): Load IPSEC key material
IKEv2-PLAT-3: PROXY MATCH on crypto map outside_map seq 1
IKEv2-PLAT-3: (225) DPD Max Time will be: 10
IKEv2-PLAT-3: (225) DPD Max Time will be: 10
ASA1 inserta esta entrada SA secundaria en el SAD:
IKEv2-PROTO-5: (225):
SM Trace->
SA: I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006
CurState: CHILD_R_DONE
Event: EV_OK
IKEv2-PROTO-2: (225):
SA created; inserting
SA into database
IKEv2-PROTO-5: (225):
SM Trace->
SA: I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (R)
MsgID = 00000006 CurState:
CHILD_R_DONE
Event: EV_START_DEL_NEG_TMR
ASA2 inserta esta entrada SA secundaria en el SAD:
IKEv2-PROTO-5: (225):
SM Trace->
SA: I_SPI=FD366326E1FED6FE
R_SPI=A75B9B2582AAECB7 (I)
MsgID = 00000006
CurState: CHILD_I_DONE
Event: EV_OK
IKEv2-PROTO-2: (225):
SA created;
inserting SA into database
Verificación del túnel
Utilice la información que se proporciona en esta sección para verificar las configuraciones de túnel IPSec y del protocolo ISAKMP (Internet Security Association and Key Management Protocol).
ISAKMP
Para verificar el ISAKMP, ingrese este comando:
show crypto isakmp sa det
ASA1
Este es el resultado para ASA1:
ASA1(config)#show cry isa sa det
There are no IKEv1 SAs
IKEv2 SAs:Session-id:99220, Status:UP-ACTIVE, IKE count:1, CHILD count:2
Tunnel-id Local Remote Status Role
1889403559 10.0.0.1/500 10.0.0.2/500 READY RESPONDER
Encr: 3DES, Hash: MD596, DH Grp:2, Auth sign: PSK, Auth verify: PSK
Life/Active Time: 86400/195 sec
Session-id: 99220
Status Description: Negotiation done
Local spi: A75B9B2582AAECB7 Remote spi: FD366326E1FED6FE
Local id: 10.0.0.1
Remote id: 10.0.0.2
Local req mess id: 14 Remote req mess id: 16
Local next mess id: 14 Remote next mess id: 16
Local req queued: 14 Remote req queued: 16
Local window: 1 Remote window: 1
DPD configured for 10 seconds, retry 2
NAT-T is not detected
Child sa: local selector 192.168.1.12/0 - 192.168.1.12/65535
remote selector 192.168.2.99/0 - 192.168.2.99/65535
ESP spi in/out: 0x8564387d/0x8717a5a
AH spi in/out: 0x0/0x0
CPI in/out: 0x0/0x0
Encr: AES-CBC, keysize: 256, esp_hmac: SHA96
ah_hmac: None, comp: IPCOMP_NONE, mode tunnel
Child sa: local selector 192.168.1.1/0 - 192.168.1.1/65535
remote selector 192.168.2.99/0 - 192.168.2.99/65535
ESP spi in/out: 0x74756292/0xf0d97b2a
AH spi in/out: 0x0/0x0
CPI in/out: 0x0/0x0
Encr: AES-CBC, keysize: 256, esp_hmac: SHA96
ah_hmac: _NONE,, comp: IPCOMP_NONE, mode tunnel
ASA2
Este es el resultado para ASA2:
ASA2(config)#show cry isa sa det
There are no IKEv1 SAs
IKEv2 SAs:
Session-id:99220, Status:UP-ACTIVE, IKE count:1, CHILD count:2
Tunnel-id Local Remote Status Role
472237395 10.0.0.2/500 10.0.0.1/500 READY INITIATOR
Encr: 3DES, Hash: MD596, DH Grp:2, Auth sign: PSK, Auth verify: PSK
Life/Active Time: 86400/190 sec
Session-id: 99220
Status Description: Negotiation done
Local spi: FD366326E1FED6FE Remote spi: A75B9B2582AAECB7
Local id: 10.0.0.2
Remote id: 10.0.0.1
Local req mess id: 16 Remote req mess id: 13
Local next mess id: 16 Remote next mess id: 13
Local req queued: 16 Remote req queued: 13
Local window: 1 Remote window: 1
DPD configured for 10 seconds, retry 2
NAT-T is not detected
Child sa: local selector 192.168.2.99/0 - 192.168.2.99/65535
remote selector 192.168.1.12/0 - 192.168.1.12/65535
ESP spi in/out: 0x8717a5a/0x8564387d
AH spi in/out: 0x0/0x0
CPI in/out: 0x0/0x0
Encr: AES-CBC, keysize: 256, esp_hmac: SHA96
ah_hmac: None, comp: IPCOMP_NONE, mode tunnel
Child sa: local selector 192.168.2.99/0 - 192.168.2.99/65535
remote selector 192.168.1.1/0 - 192.168.1.1/65535
ESP spi in/out: 0xf0d97b2a/0x74756292
AH spi in/out: 0x0/0x0
CPI in/out: 0x0/0x0
Encr: AES-CBC, keysize: 256, esp_hmac: SHA96
ah_hmac: None, comp: IPCOMP_NONE, mode tunnel
IPSec
Para verificar el IPSec, ingrese este comando:
show crypto ipsec sa
ASA1
Este es el resultado para ASA1:
ASA1(config)#show cry ipsec sa
interface: outside
Crypto map tag: outside_map, seq num: 1, local addr: 10.0.0.1
access-list l2l_list extended permit ip host 192.168.1.1
host 192.168.2.99
local ident (addr/mask/prot/port):
(192.168.1.1/255.255.255.255/0/0)
remote ident (addr/mask/prot/port): (
192.168.2.99/255.255.255.255/0/0)
current_peer: 10.0.0.2
#pkts encaps: 3, #pkts encrypt: 3, #pkts digest: 3
#pkts decaps: 3, #pkts decrypt: 3, #pkts verify: 3
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 3, #pkts comp failed: 0,
#pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0,
#fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0,
#decapsulated frgs needing reassembly: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 10.0.0.1/500, remote crypto endpt.:
10.0.0.2/500
path mtu 1500, ipsec overhead 74, media mtu 1500
current outbound spi: F0D97B2A
current inbound spi : 74756292
inbound esp sas:
spi: 0x74756292 (1953850002)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137990144, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4008959/28628)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x0000000F
outbound esp sas:
spi: 0xF0D97B2A (4040784682)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137990144, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4147199/28628)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
Crypto map tag: outside_map, seq num: 1, local addr: 10.0.0.1
access-list l2l_list extended permit ip host 192.168.1.12
host 192.168.2.99
local ident (addr/mask/prot/port): (
192.168.1.12/255.255.255.255/0/0)
remote ident (addr/mask/prot/port):
(192.168.2.99/255.255.255.255/0/0)
current_peer: 10.0.0.2
#pkts encaps: 3, #pkts encrypt: 3, #pkts digest: 3
#pkts decaps: 3, #pkts decrypt: 3, #pkts verify: 3
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 3, #pkts comp failed: 0,
#pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0,
#fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing
reassembly: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 10.0.0.1/500, remote crypto
endpt.: 10.0.0.2/500
path mtu 1500, ipsec overhead 74, media mtu 1500
current outbound spi: 08717A5A
current inbound spi : 8564387D
inbound esp sas:
spi: 0x8564387D (2237937789)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137990144, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4285439/28734)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x0000000F
outbound esp sas:
spi: 0x08717A5A (141654618)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137990144, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4055039/28734)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
ASA2
Este es el resultado para ASA2:
ASA2(config)#show cry ipsec sa
interface: outside
Crypto map tag: outside_map, seq num: 1, local addr: 10.0.0.2
access-list l2l_list extended permit ip host 192.168.2.99 host
192.168.1.12
local ident (addr/mask/prot/port):
(192.168.2.99/255.255.255.255/0/0)
remote ident (addr/mask/prot/port):
(192.168.1.12/255.255.255.255/0/0)
current_peer: 10.0.0.1
#pkts encaps: 3, #pkts encrypt: 3, #pkts digest: 3
#pkts decaps: 3, #pkts decrypt: 3, #pkts verify: 3
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 3, #pkts comp failed: 0,
#pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0,
#fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing
reassembly: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 10.0.0.2/500, remote crypto
endpt.: 10.0.0.1/500
path mtu 1500, ipsec overhead 74, media mtu 1500
current outbound spi: 8564387D
current inbound spi : 08717A5A
inbound esp sas:
spi: 0x08717A5A (141654618)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137973760, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4193279/28770)
IV size: 16 bytes replay detection support: Y
Anti replay bitmap:
0x00000000 0x0000000F
outbound esp sas:
spi: 0x8564387D (2237937789)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137973760, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4055039/28770)
IV size: 16 bytes replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
Crypto map tag: outside_map, seq num: 1, local addr: 10.0.0.2
access-list l2l_list extended permit ip host 192.168.2.99
host 192.168.1.1
local ident (addr/mask/prot/port): (
192.168.2.99/255.255.255.255/0/0)
remote ident (addr/mask/prot/port):
(192.168.1.1/255.255.255.255/0/0)
current_peer: 10.0.0.1
#pkts encaps: 3, #pkts encrypt: 3, #pkts digest: 3
#pkts decaps: 3, #pkts decrypt: 3, #pkts verify: 3
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 3, #pkts comp failed: 0,
#pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0,
#fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing
reassembly: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 10.0.0.2/500, remote crypto
endpt.: 10.0.0.1/500
path mtu 1500, ipsec overhead 74, media mtu 1500
current outbound spi: 74756292
current inbound spi : F0D97B2A
inbound esp sas:
spi: 0xF0D97B2A (4040784682)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137973760, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4285439/28663)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x0000000F
outbound esp sas:
spi: 0x74756292 (1953850002)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, }
slot: 0, conn_id: 137973760, crypto-map: outside_map
sa timing: remaining key lifetime (kB/sec): (4331519/28663)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
También puede verificar el resultado del comando show crypto ikev2 sa, que proporciona un resultado que es idéntico al resultado del comando show crypto isakmp sa:
IKEv2 SAs:
Session-id:99220, Status:UP-ACTIVE, IKE count:1, CHILD count:2
Tunnel-id Local Remote Status Role
1889403559 10.0.0.1/500 10.0.0.2/500 READY RESPONDER
Encr: 3DES, Hash: MD596, DH Grp:2, Auth sign: PSK, Auth verify: PSK
Life/Active Time: 86400/179 sec
Child sa: local selector 192.168.1.12/0 - 192.168.1.12/65535
remote selector 192.168.2.99/0 - 192.168.2.99/65535
ESP spi in/out: 0x8564387d/0x8717a5a
Child sa: local selector 192.168.1.1/0 - 192.168.1.1/65535
remote selector 192.168.2.99/0 - 192.168.2.99/65535
ESP spi in/out: 0x74756292/0xf0d97b2a
Información Relacionada
Historial de revisiones
| Revisión | Fecha de publicación | Comentarios |
|---|---|---|
3.0 |
04-Apr-2024 |
Recertificación. |
1.0 |
28-Jan-2013 |
Versión inicial |
Con la colaboración de ingenieros de Cisco
- Anu M ChackoLeader Technical Marketing
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