Configuración de un túnel IPsec de LAN a LAN entre dos routers

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Actualizado:3 de agosto de 2023
ID del documento:71462

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    Introducción

    Este documento describe cómo configurar una VPN basada en políticas a través del Intercambio de claves de Internet (IKEv1) entre dos routers Cisco (Cisco IOS® o Cisco IOS® XE).

    Prerequisites

    Requirements

    No hay requisitos específicos para este documento.

    Componentes Utilizados

    La información de este documento se basa en un router Cisco con Cisco IOS® Release 15.7. Permite a los usuarios acceder a los recursos de los sitios a través de un túnel VPN IPsec.

    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.

    Convenciones

    Consulte Convenciones de Consejos Técnicos de Cisco para obtener más información sobre las convenciones sobre documentos.

    Configurar

    En esta sección encontrará la información para configurar las funciones descritas en este documento.

    Diagrama de la red

    En este documento, se utiliza esta configuración de red:

    Network diagram

    Nota: Los esquemas de direccionamiento IP usados en esta configuración no son legalmente enrutables en Internet. Son las direcciones RFC1918 que se han utilizado en un entorno de laboratorio.

    Configuraciones

    En este documento, se utilizan estas configuraciones:

    Nota: Cisco recomienda que la ACL aplicada al mapa criptográfico en ambos dispositivos sea una imagen reflejada entre sí.

    Router A 
    !--- Create an ISAKMP policy for Phase 1 negotiations for the L2L tunnels.

crypto isakmp policy 10
encryption aes
hash sha256
authentication pre-share
group 14

!--- Specify the pre-shared key and the remote peer address 
    !--- to match for the L2L tunnel.

crypto isakmp key vpnuser address 10.0.0.2

!--- Create the Phase 2 policy for IPsec negotiation.

crypto ipsec transform-set myset esp-aes esp-sha256-hmac

!--- Create an ACL for the traffic to be encrypted.
!--- In this example, the traffic from 10.1.1.0/24 to 172.16.2.0/24
!--- is encrypted. The traffic which does not match the access list 
!--- is unencrypted for the Internet.

access-list 100 permit ip 10.1.1.0 0.0.0.255 172.16.2.0 0.0.0.255

!--- Create the actual crypto map. Specify an access control list (ACL),
    !--- which defines the proxy identities (local and remote host/networks).

crypto map mymap 10 ipsec-isakmp
 set peer 10.0.0.2
 set transform-set myset
 match address 100

interface GigabitEthernet0/1
ip address 10.1.1.2 255.255.255.0

!--- Apply the crypto map on the outside interface.

interface GigabitEthernet0/0
 ip address 172.16.1.1 255.255.255.0
 crypto map mymap

!--- Route to the default gateway

ip route 0.0.0.0 0.0.0.0 172.16.1.2
    Router B 
    !--- Create an ISAKMP policy for Phase 1 negotiations for the L2L tunnels.

crypto isakmp policy 10
encryption aes
hash sha256
authentication pre-share
group 14

!--- Specify the pre-shared key and the remote peer address 
    !--- to match for the L2L tunnel.

crypto isakmp key vpnuser address 172.16.1.1

!--- Create the Phase 2 policy for IPsec negotiation.

crypto ipsec transform-set myset esp-aes esp-sha256-hmac

!--- Create an ACL for the traffic to be encrypted.
!--- In this example, the traffic from 172.16.2.0/24 to 10.1.1.0/24
!--- is encrypted. The traffic which does not match the access list 
!--- is unencrypted for the Internet.

access-list 100 permit ip 172.16.2.0 0.0.0.255 10.1.1.0 0.0.0.255

!--- Create the actual crypto map. Specify an access control list (ACL),
    !--- which defines the proxy identities (local and remote host/networks).

!
crypto map mymap 10 ipsec-isakmp
 set peer 172.16.1.1
 set transform-set myset
 match address 100

interface GigabitEthernet0/1
ip address 172.16.2.1 255.255.255.0
!

!--- Apply the crypto map on the outside interface.

interface GigabitEthernet0/0
ip address 10.0.0.2 255.255.255.0
crypto map mymap

!--- Route to the default gateway.

ip route 0.0.0.0 0.0.0.0 10.0.01

    Verificación

    Utilize esta sección para confirmar que su configuración funcione correctamente.

    El Analizador de Cisco CLI (sólo para clientes registrados) admite determinados show comandos. Utilice el Analizador de Cisco CLI para ver un análisis de show resultado del comando.

    • show crypto ipsec sa - Muestra la configuración, el número de encapsulados y decapitados, las identidades de proxy locales y remotas y los índices de parámetros de seguridad (SPI), entrantes y salientes, utilizados por las asociaciones de seguridad (SA) actuales.

      RouterA#show crypto ipsec sa

interface: Serial2/0
    Crypto map tag: mymap, local addr 172.16.1.1

    protected vrf: (none)
   local  ident (addr/mask/prot/port): (10.1.1.0/255.255.255.0/0/0)
   remote ident (addr/mask/prot/port): (172.16.2.0/255.255.255.0/0/0)
   current_peer 10.0.0.2 port 500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 21, #pkts encrypt: 21, #pkts digest: 21
    #pkts decaps: 21, #pkts decrypt: 21, #pkts verify: 21
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 0, #recv errors 0

     local crypto endpt.: 172.16.1.1, remote crypto endpt.: 10.0.0.2
     plaintext mtu 1438, path mtu 1500, ip mtu 1500, ip mtu idb GigabitEthernet0/0
     current outbound spi: 0x8767D399(2271728537)
     PFS (Y/N): N, DH group: none

     inbound esp sas:
      spi: 0x6E210372(1847657330)
        transform: esp-aes esp-sha256-hmac ,
        in use settings ={Tunnel, }
        conn id: 2007, flow_id: Onboard VPN:7, sibling_flags 80004040, crypto map: mymap
        sa timing: remaining key lifetime (k/sec): (4338240/3269)
        IV size: 16 bytes
        replay detection support: Y
        Status: ACTIVE(ACTIVE)

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x8767D399(2271728537)
        transform: esp-aes esp-sha256-hmac ,
        in use settings ={Tunnel, }
        conn id: 2008, flow_id: Onboard VPN:8, sibling_flags 80004040, crypto map: mymap
        sa timing: remaining key lifetime (k/sec): (4338240/3269)
        IV size: 16 bytes
        replay detection support: Y
        Status: ACTIVE(ACTIVE)

     outbound ah sas:

     outbound pcp sas:

    • show crypto isakmp sa - Muestra todas las IKE SA actuales y el estado.

      RouterA#show crypto isakmp sa
dst             src             state          conn-id slot status
10.0.0.2        172.16.1.1      QM_IDLE              1    0 ACTIVE
    • show crypto map - Muestra la estructura de mapa criptográfico creada con:
      • Nombre del mapa criptográfico y número de secuencia.
      • Dirección de par.
      • Nombre de la ACL aplicada junto con las identidades de proxy local y remota.
      • Valores del conjunto de transformación IPsec utilizado.
      • Interfaz en la que está enlazado el mapa criptográfico.
      RouterA#show crypto map
                

Crypto Map IPv4 "mymap" 10 ipsec-isakmp
                Peer = 10.0.0.2
                Extended IP access list 100
                    access-list 100 permit ip 10.1.1.0 0.0.0.255 172.16.2.0 0.0.0.255
                Current peer: 10.0.0.2
                Security association lifetime: 4608000 kilobytes/3600 seconds
                Responder-Only (Y/N): N
                PFS (Y/N): N
                Mixed-mode : Disabled
                Transform sets={
                                myset:  { esp-aes esp-sha256-hmac  } ,
                }
                Interfaces using crypto map mymap:
                                GigabitEthernet0/0

RouterB#show crypto map
                Interfaces using crypto map NiStTeSt1:

Crypto Map IPv4 "mymap" 10 ipsec-isakmp
                Peer = 172.16.1.1
                Extended IP access list 100
                    access-list 100 permit ip 172.16.2.0 0.0.0.255 10.1.1.0 0.0.0.255
                Current peer: 10.0.0.1
                Security association lifetime: 4608000 kilobytes/3600 seconds
                Responder-Only (Y/N): N
                PFS (Y/N): N
                Mixed-mode : Disabled
                Transform sets={
                                myset:  { esp-aes esp-sha256-hmac  } ,
                }
                Interfaces using crypto map mymap:
                                GigabitEthernet0/0
    • show crypto session remote detail 
      RouterA#show crypto session remote 10.0.0.2 detail   
Crypto session current status

Interface: GigabitEthernet0/0
Uptime: 00:39:16 
Session status: UP-ACTIVE   >>>>> Status of the VPN 
Peer: 10.0.0.2 port 500 fvrf: (none) ivrf: (none)
      Phase1_id: 10.0.0.2
      Desc: (none)
  Session ID: 0
  IKEv1 SA: local 172.16.1.1/500 remote 10.0.0.2/500 Active
          Capabilities:(none) connid:1004 lifetime:23:20:43
  IPSEC FLOW: permit ip 10.1.1.0/255.255.255.0 172.16.2.0/255.255.255.0
        Active SAs: 2, origin: crypto map
        Inbound:  #pkts dec'ed 21 drop 0 life (KB/Sec) 4338240/1243
        Outbound: #pkts enc'ed 21 drop 0 life (KB/Sec) 4338240/1243


RouterB#show crypto session remote 172.16.1.1 detail
Crypto session current status

Interface: GigabitEthernet0/0
Uptime: 00:40:43
Session status: UP-ACTIVE    >>>>> Status of the VPN 
Peer: 172.16.1.1 port 500 fvrf: (none) ivrf: (none)
      Phase1_id: 172.16.1.1
      Desc: (none)
  Session ID: 0
  IKEv1 SA: local 10.0.0.2/500 remote 172.16.1.1/500 Active
          Capabilities:(none) connid:1004 lifetime:23:19:16
  IPSEC FLOW: permit ip 172.16.2.0/255.255.255.0 10.1.1.0/255.255.255.0
        Active SAs: 2, origin: crypto map
        Inbound:  #pkts dec'ed 21 drop 0 life (KB/Sec) 4271304/1156
        Outbound: #pkts enc'ed 21 drop 0 life (KB/Sec) 4271304/1156

    Troubleshoot

    En esta sección se brinda información que puede utilizar para resolver problemas en su configuración.

    Comandos

    El Analizador de Cisco CLI (sólo para clientes registrados) admite determinados show comandos. Utilice el Analizador de Cisco CLI para ver un análisis de show resultado del comando.

    Nota: Consulte Información Importante sobre los Comandos Debug antes de utilizar debug comandos.

    • debug crypto isakmp - Muestra las negociaciones ISAKMP de la Fase 1.

    • debug crypto ipsec - Muestra las negociaciones IPsec de la fase 2.

    Ejemplo de resultado del comando debug

    El resultado de depuración de ejemplo proviene del RouterA (iniciador) para una negociación VPN exitosa.

    Router

    RouterA#debug crypto isakmp
Jul  1 04:08:49.558: ISAKMP: (0):SA request profile is (NULL)
Jul  1 04:08:49.558: ISAKMP: (0):Created a peer struct for 10.0.0.2, peer port 500
Jul  1 04:08:49.558: ISAKMP: (0):New peer created peer = 0x2108BC48 peer_handle = 0x80000005
Jul  1 04:08:49.558: ISAKMP: (0):Locking peer struct 0x2108BC48, refcount 1 for isakmp_initiator
Jul  1 04:08:49.558: ISAKMP: (0):local port 500, remote port 500
Jul  1 04:08:49.558: ISAKMP: (0):set new node 0 to QM_IDLE
Jul  1 04:08:49.558: ISAKMP: (0):Find a dup sa in the avl tree during calling isadb_insert sa = 3DA022D8
Jul  1 04:08:49.558: ISAKMP: (0):Can not start Aggressive mode,.!
Success rate is 50 percent (1/2), round-trip min/avg/max = 1/1/1 ms
Router# trying Main mode.
Jul  1 04:08:49.558: ISAKMP: (0):found peer pre-shared key matching 10.0.0.2
Jul  1 04:08:49.558: ISAKMP: (0):constructed NAT-T vendor-rfc3947 ID
Jul  1 04:08:49.558: ISAKMP: (0):constructed NAT-T vendor-07 ID
Jul  1 04:08:49.558: ISAKMP: (0):constructed NAT-T vendor-03 ID
Jul  1 04:08:49.558: ISAKMP: (0):constructed NAT-T vendor-02 ID
Jul  1 04:08:49.558: ISAKMP: (0):Input = IKE_MESG_FROM_IPSEC, IKE_SA_REQ_MM
Jul  1 04:08:49.558: ISAKMP: (0):Old State = IKE_READY  New State = IKE_I_MM1

Jul  1 04:08:49.562: ISAKMP: (0):beginning Main Mode exchange
Jul  1 04:08:49.562: ISAKMP-PAK: (0):sending packet to 10.0.0.2 my_port 500 peer_port 500 (I) MM_NO_STATE
Jul  1 04:08:49.562: ISAKMP: (0):Sending an IKE IPv4 Packet.
Jul  1 04:08:49.690: ISAKMP-PAK: (0):received packet from 10.0.0.2 dport 500 sport 500 Global (I) MM_NO_STATE
Jul  1 04:08:49.690: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
Jul  1 04:08:49.690: ISAKMP: (0):Old State = IKE_I_MM1  New State = IKE_I_MM2

Jul  1 04:08:49.690: ISAKMP: (0):processing SA payload. message ID = 0
Jul  1 04:08:49.690: ISAKMP: (0):processing vendor id payload
Jul  1 04:08:49.690: ISAKMP: (0):vendor ID seems Unity/DPD but major 69 mismatch
Jul  1 04:08:49.690: ISAKMP: (0):vendor ID is NAT-T RFC 3947
Jul  1 04:08:49.690: ISAKMP: (0):found peer pre-shared key matching 10.0.0.2
Jul  1 04:08:49.690: ISAKMP: (0):local preshared key found
Jul  1 04:08:49.690: ISAKMP: (0):Scanning profiles for xauth ...
Jul  1 04:08:49.690: ISAKMP: (0):Checking ISAKMP transform 1 against priority 10 policy
Jul  1 04:08:49.690: ISAKMP: (0):      encryption AES-CBC
Jul  1 04:08:49.690: ISAKMP: (0):      keylength of 128
Jul  1 04:08:49.690: ISAKMP: (0):      hash SHA256
Jul  1 04:08:49.690: ISAKMP: (0):      default group 14
Jul  1 04:08:49.690: ISAKMP: (0):      auth pre-share
Jul  1 04:08:49.690: ISAKMP: (0):      life type in seconds
Jul  1 04:08:49.690: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
Jul  1 04:08:49.690: ISAKMP: (0):atts are acceptable. Next payload is 0
Jul  1 04:08:49.690: ISAKMP: (0):Acceptable atts:actual life: 0
Jul  1 04:08:49.690: ISAKMP: (0):Acceptable atts:life: 0
Jul  1 04:08:49.690: ISAKMP: (0):Fill atts in sa vpi_length:4
Jul  1 04:08:49.690: ISAKMP: (0):Fill atts in sa life_in_seconds:86400
Jul  1 04:08:49.690: ISAKMP: (0):Returning Actual lifetime: 86400
Jul  1 04:08:49.690: ISAKMP: (0):Started lifetime timer: 86400.

Jul  1 04:08:49.814: ISAKMP: (0):processing vendor id payload
Jul  1 04:08:49.814: ISAKMP: (0):vendor ID seems Unity/DPD but major 69 mismatch
Jul  1 04:08:49.814: ISAKMP: (0):vendor ID is NAT-T RFC 3947
Jul  1 04:08:49.814: ISAKMP: (0):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
Jul  1 04:08:49.814: ISAKMP: (0):Old State = IKE_I_MM2  New State = IKE_I_MM2

Jul  1 04:08:49.818: ISAKMP-PAK: (0):sending packet to 10.0.0.2 my_port 500 peer_port 500 (I) MM_SA_SETUP
Jul  1 04:08:49.818: ISAKMP: (0):Sending an IKE IPv4 Packet.
Jul  1 04:08:49.818: ISAKMP: (0):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
Jul  1 04:08:49.818: ISAKMP: (0):Old State = IKE_I_MM2  New State = IKE_I_MM3

Jul  1 04:08:49.978: ISAKMP-PAK: (0):received packet from 10.0.0.2 dport 500 sport 500 Global (I) MM_SA_SETUP
Jul  1 04:08:49.978: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
Jul  1 04:08:49.978: ISAKMP: (0):Old State = IKE_I_MM3  New State = IKE_I_MM4

Jul  1 04:08:49.978: ISAKMP: (0):processing KE payload. message ID = 0
Jul  1 04:08:50.138: ISAKMP: (0):processing NONCE payload. message ID = 0
Jul  1 04:08:50.138: ISAKMP: (0):found peer pre-shared key matching 10.0.0.2
Jul  1 04:08:50.138: ISAKMP: (1004):processing vendor id payload
Jul  1 04:08:50.138: ISAKMP: (1004):vendor ID is Unity
Jul  1 04:08:50.138: ISAKMP: (1004):processing vendor id payload
Jul  1 04:08:50.138: ISAKMP: (1004):vendor ID is DPD
Jul  1 04:08:50.138: ISAKMP: (1004):processing vendor id payload
Jul  1 04:08:50.138: ISAKMP: (1004):speaking to another IOS box!
Jul  1 04:08:50.138: ISAKMP: (1004):received payload type 20
Jul  1 04:08:50.138: ISAKMP: (1004):His hash no match - this node outside NAT
Jul  1 04:08:50.138: ISAKMP: (1004):received payload type 20
Jul  1 04:08:50.138: ISAKMP: (1004):No NAT Found for self or peer
Jul  1 04:08:50.138: ISAKMP: (1004):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
Jul  1 04:08:50.138: ISAKMP: (1004):Old State = IKE_I_MM4  New State = IKE_I_MM4

Jul  1 04:08:50.138: ISAKMP: (1004):Send initial contact
Jul  1 04:08:50.138: ISAKMP: (1004):SA is doing
Jul  1 04:08:50.138: ISAKMP: (1004):pre-shared key authentication using id type ID_IPV4_ADDR
Jul  1 04:08:50.138: ISAKMP: (1004):ID payload
                next-payload : 8
                type         : 1
Jul  1 04:08:50.138: ISAKMP: (1004):        address      : 172.16.1.1   >>>>> IKE ID sent
Jul  1 04:08:50.138: ISAKMP: (1004):        protocol     : 17
                port         : 500
                length       : 12
Jul  1 04:08:50.138: ISAKMP: (1004):Total payload length: 12
Jul  1 04:08:50.138: ISAKMP-PAK: (1004):sending packet to 10.0.0.2 my_port 500 peer_port 500 (I) MM_KEY_EXCH
Jul  1 04:08:50.138: ISAKMP: (1004):Sending an IKE IPv4 Packet.
Jul  1 04:08:50.138: ISAKMP: (1004):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
Jul  1 04:08:50.138: ISAKMP: (1004):Old State = IKE_I_MM4  New State = IKE_I_MM5

Jul  1 04:08:50.138: ISAKMP-PAK: (1004):received packet from 10.0.0.2 dport 500 sport 500 Global (I) MM_KEY_EXCH
Jul  1 04:08:50.142: ISAKMP: (1004):processing ID payload. message ID = 0
Jul  1 04:08:50.142: ISAKMP: (1004):ID payload
                next-payload : 8
                type         : 1
Jul  1 04:08:50.142: ISAKMP: (1004):        address      : 10.0.0.2   >>>>> IKE ID received
Jul  1 04:08:50.142: ISAKMP: (1004):        protocol     : 17
                port         : 500
                length       : 12
Jul  1 04:08:50.142: ISAKMP: (0):peer matches *none* of the profiles
Jul  1 04:08:50.142: ISAKMP: (1004):processing HASH payload. message ID = 0
Jul  1 04:08:50.142: ISAKMP: (1004):SA authentication status:
                authenticated
Jul  1 04:08:50.142: ISAKMP: (1004):SA has been authenticated with 10.0.0.2
Jul  1 04:08:50.142: ISAKMP: (0):Trying to insert a peer 172.16.1.1/10.0.0.2/500/,
Jul  1 04:08:50.142: ISAKMP: (0): and inserted successfully 2108BC48.
Jul  1 04:08:50.142: ISAKMP: (1004):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
Jul  1 04:08:50.142: ISAKMP: (1004):Old State = IKE_I_MM5  New State = IKE_I_MM6

Jul  1 04:08:50.142: ISAKMP: (1004):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
Jul  1 04:08:50.142: ISAKMP: (1004):Old State = IKE_I_MM6  New State = IKE_I_MM6

Jul  1 04:08:50.142: ISAKMP: (1004):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
Jul  1 04:08:50.142: ISAKMP: (1004):Old State = IKE_I_MM6  New State = IKE_P1_COMPLETE

Jul  1 04:08:50.142: ISAKMP: (1004):beginning Quick Mode exchange, M-ID of 3184909968
Jul  1 04:08:50.142: ISAKMP: (1004):QM Initiator gets spi
Jul  1 04:08:50.142: ISAKMP-PAK: (1004):sending packet to 10.0.0.2 my_port 500 peer_port 500 (I) QM_IDLE
Jul  1 04:08:50.142: ISAKMP: (1004):Sending an IKE IPv4 Packet.
Jul  1 04:08:50.142: ISAKMP: (1004):Node 3184909968, Input = IKE_MESG_INTERNAL, IKE_INIT_QM
Jul  1 04:08:50.142: ISAKMP: (1004):Old State = IKE_QM_READY  New State = IKE_QM_I_QM1
Jul  1 04:08:50.142: ISAKMP: (1004):Input = IKE_MESG_INTERNAL, IKE_PHASE1_COMPLETE   >>>>> Phase1 negotiation is complete
Jul  1 04:08:50.142: ISAKMP: (1004):Old State = IKE_P1_COMPLETE  New State = IKE_P1_COMPLETE

Jul  1 04:08:50.146: ISAKMP-PAK: (1004):received packet from 10.0.0.2 dport 500 sport 500 Global (I) QM_IDLE
Jul  1 04:08:50.146: ISAKMP: (1004):processing HASH payload. message ID = 3184909968
Jul  1 04:08:50.146: ISAKMP: (1004):processing SA payload. message ID = 3184909968
Jul  1 04:08:50.146: ISAKMP: (1004):Checking IPSec proposal 1
Jul  1 04:08:50.146: ISAKMP: (1004):transform 1, ESP_AES
Jul  1 04:08:50.146: ISAKMP: (1004):   attributes in transform:
Jul  1 04:08:50.146: ISAKMP: (1004):      encaps is 1 (Tunnel)
Jul  1 04:08:50.146: ISAKMP: (1004):      SA life type in seconds
Jul  1 04:08:50.146: ISAKMP: (1004):      SA life duration (basic) of 3600
Jul  1 04:08:50.146: ISAKMP: (1004):      SA life type in kilobytes
Jul  1 04:08:50.146: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
Jul  1 04:08:50.146: ISAKMP: (1004):      authenticator is HMAC-SHA256
Jul  1 04:08:50.146: ISAKMP: (1004):      key length is 128
Jul  1 04:08:50.146: ISAKMP: (1004):atts are acceptable.
Jul  1 04:08:50.146: IPSEC(validate_proposal_request): proposal part #1
Jul  1 04:08:50.146: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 172.16.1.1:0, remote= 10.0.0.2:0,
    local_proxy= 10.1.1.0/255.255.255.0/256/0,
    remote_proxy= 172.16.2.0/255.255.255.0/256/0,
    protocol= ESP, transform= esp-aes esp-sha256-hmac  (Tunnel),
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
Jul  1 04:08:50.146: Crypto mapdb : proxy_match
                src addr     : 10.1.1.0
                dst addr     : 172.16.2.0
                protocol     : 0
                src port     : 0
                dst port     : 0
Jul  1 04:08:50.146: (ipsec_process_proposal)Map Accepted: mymap, 10
Jul  1 04:08:50.146: ISAKMP: (1004):processing NONCE payload. message ID = 3184909968
Jul  1 04:08:50.146: ISAKMP: (1004):processing ID payload. message ID = 3184909968
Jul  1 04:08:50.146: ISAKMP: (1004):processing ID payload. message ID = 3184909968
Jul  1 04:08:50.146: ISAKMP: (1004):Node 3184909968, Input = IKE_MESG_FROM_PEER, IKE_QM_EXCH
Jul  1 04:08:50.146: ISAKMP: (1004):Old State = IKE_QM_I_QM1  New State = IKE_QM_IPSEC_INSTALL_AWAIT
Jul  1 04:08:50.146: IPSEC(key_engine): got a queue event with 1 KMI message(s)
Jul  1 04:08:50.146: Crypto mapdb : proxy_match
                src addr     : 10.1.1.0
                dst addr     : 172.16.2.0
                protocol     : 256
                src port     : 0
                dst port     : 0
Jul  1 04:08:50.146: IPSEC(crypto_ipsec_create_ipsec_sas): Map found mymap, 10
Jul  1 04:08:50.146: IPSEC(crypto_ipsec_sa_find_ident_head): reconnecting with the same proxies and peer 10.0.0.2
Jul  1 04:08:50.146: IPSEC(get_old_outbound_sa_for_peer): No outbound SA found for peer 22C55798
Jul  1 04:08:50.146: IPSEC(create_sa): sa created,
  (sa) sa_dest= 172.16.1.1, sa_proto= 50,
    sa_spi= 0x6E210372(1847657330),    >>>>> Inbound SPI 
    sa_trans= esp-aes esp-sha256-hmac , sa_conn_id= 2007
    sa_lifetime(k/sec)= (4608000/3600),
  (identity) local= 172.16.1.1:0, remote= 10.0.0.2:0,
    local_proxy= 10.1.1.0/255.255.255.0/256/0,
    remote_proxy= 172.16.2.0/255.255.255.0/256/0
Jul  1 04:08:50.146: IPSEC(create_sa): sa created,
  (sa) sa_dest= 10.0.0.2, sa_proto= 50,
    sa_spi= 0x8767D399(2271728537),   >>>>> Outbound SPI
    sa_trans= esp-aes esp-sha256-hmac , sa_conn_id= 2008
    sa_lifetime(k/sec)= (4608000/3600),
  (identity) local= 172.16.1.1:0, remote= 10.0.0.2:0,
    local_proxy= 10.1.1.0/255.255.255.0/256/0,
    remote_proxy= 172.16.2.0/255.255.255.0/256/0
Jul  1 04:08:50.150: IPSEC: Expand action denied, notify RP
Jul  1 04:08:50.150: ISAKMP-ERROR: (0):Failed to find peer index node to update peer_info_list
Jul  1 04:08:50.150: ISAKMP: (1004):Received IPSec Install callback... proceeding with the negotiation
Jul  1 04:08:50.150: ISAKMP: (1004):Successfully installed IPSEC SA (SPI:0x6E210372) on GigabitEthernet0/0   >>>>> IPsec SA is installed
Jul  1 04:08:50.150: ISAKMP-PAK: (1004):sending packet to 10.0.0.2 my_port 500 peer_port 500 (I) QM_IDLE
Jul  1 04:08:50.150: ISAKMP: (1004):Sending an IKE IPv4 Packet.
Jul  1 04:08:50.150: ISAKMP: (1004):deleting node -1110057328 error FALSE reason "No Error"
Jul  1 04:08:50.150: ISAKMP: (1004):Node 3184909968, Input = IKE_MESG_FROM_IPSEC, IPSEC_INSTALL_DONE
Jul  1 04:08:50.150: ISAKMP: (1004):Old State = IKE_QM_IPSEC_INSTALL_AWAIT  New State = IKE_QM_PHASE2_COMPLETE >>>>> Phase2 negotiation is complete
Jul  1 04:08:50.950: ISAKMP: (1003):purging node -262896492
Jul  1 04:09:09.710: ISAKMP: (1003):purging SA., sa=3DA05D84, delme=3DA05D84

    Información Relacionada

    Historial de revisiones

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    3.0
    03-Aug-2023
    Actualización Introducción, SEO, requisitos de marca, requisitos de estilo y formato.
    2.0
    05-Jul-2022
    Se actualizó el documento a Cisco IOS Release 15.7
    1.0
    12-Sep-2006
    Versión inicial
    TAC Authored

    Con la colaboración de ingenieros de Cisco

    • Mrutunjay Sethi
      Cisco TAC Engineer

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