对具有PSK的站点到站点VPN使用ASA IKEv2调试

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已更新: 2025 年 4 月 29 日
文档 ID:115935

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    简介

    本文档介绍有关思科自适应安全设备(ASA)上的互联网密钥交换版本2(IKEv2)调试的信息。

    先决条件

    要求

    本文档没有任何特定的要求。

    使用的组件

    本文档不限于特定的软件和硬件版本。

    本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您的网络处于活动状态，请确保您了解所有命令的潜在影响。

    核心问题

    IKEv2使用的数据包交换过程与IKEv1使用的数据包交换过程截然不同。使用IKEv1时，有一个明确分界的phase1交换，包含六个数据包，然后是一个包含三个数据包的phase 2交换。IKEv2交换是可变的。

    提示：有关差异的更多详细信息以及数据包交换过程的说明，请参阅IKEv2数据包交换和协议级别调试。

    使用的调试

    以下两个调试用于IKEv2:

    debug crypto ikev2 protocol 127
    debug crypto ikev2 platform 127

    ASA配置

    本节提供ASA1（启动器）和ASA2（响应器）的示例配置。

    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 *****

    调试

    本节介绍ASA1（发起方）和ASA2（响应方）隧道协商以及子级安全关联(SA)调试和消息说明。

    隧道协商

    ASA1收到与对等体ASA 10.0.0.2的加密访问控制列表(ACL)匹配的数据包，然后启动SA创建：

    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

    发送的初始消息对用于IKE_SA_INIT交换。这些消息会协商加密算法、交换失效并执行Diffie-Hellman(DH)交换。

    以下是ASA1的相关配置：

    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 *****

    以下是此交换的调试输出：

    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

    ASA1随后构建IKE_INIT_SA数据包，其中包含：

    • ISAKMP报头（SPI/版本/标志）

    • SAi1（IKE发起程序支持的加密算法）

    • KEi（发起方的DH公钥值）

    • N（发起方非活动）
    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

    然后，ASA1会发送IKE_INIT_SA数据包：

    IKEv2-PLAT-4: SENT PKT [IKE_SA_INIT]
         [10.0.0.1]:500->[10.0.0.2]:500

    ASA2接收IKEV_INIT_SA数据包：

    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启动该对等体的SA创建：

    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验证并处理IKE_INIT消息：

    1. 它从ASA1提供的加密套件中选择加密套件。

    2. 它计算自己的DH密钥。

    3. 它还计算SKEY ID值，从中可以派生此IKE_SA的所有密钥。除后面的所有邮件的报头外，所有邮件都经过加密和身份验证。用于加密和完整性保护的密钥源自SKEY ID，称为：

      • SK_e用于加密。

      • SK_a用于身份验证。

      • SK_d被导出并用于导出CHILD_SA的进一步密钥材料。为每个方向计算单独的SK_e和SK_a。

    以下是ASA2的相关配置：

    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 *****

    以下是调试输出：

    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

    然后，ASA2为ASA1收到的IKE_SA_INIT交换构建响应方消息。此数据包包含：

    • ISAKMP报头（SPI/版本/标志）

    • SAr1（IKE响应器选择的加密算法）

    • KEr（响应方的DH公钥值）

    • 响应器Nonce

    以下是调试输出：

    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向ASA1发送响应方消息：

    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收到来自ASA2的IKE_SA_INIT响应数据包：

    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启动授权过程的计时器：

    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验证并处理响应：

    1. 计算启动器DH密钥。

    2. 生成启动器SKYID。

    以下是调试输出：

    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

    ASA之间的IKE_INIT_SA交换现已完成：

    IKEv2-PROTO-3: (16): Complete SA init exchange

    ASA1启动IKE_AUTH交换并开始生成身份验证负载。IKE_AUTH数据包包含：

    • ISAKMP报头（SPI/版本/标志）

    • IDi（发起方身份）

    • AUTH负载

    • SAi2（启动SA — 类似于IKEv1中的第2阶段转换集交换）

    • TSi和TSr（发起方和响应方流量选择器）

    注意：TSi和TSr分别包含发起方和响应方的源地址和目的地址，以转发/接收加密流量。地址范围指定进出该范围的所有流量都通过隧道传输。如果响应方可以接受该建议，它将返回相同的TS负载。

    此外，为与触发数据包匹配的proxy_ID对创建第一个CHILD_SA。

    以下是ASA1的相关配置：

    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

    以下是调试输出：

    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将IKE_AUTH数据包发送到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从ASA1接收此数据包：

    IKEv2-PLAT-4: RECV PKT [IKE_AUTH] 
         [10.0.0.1]:500->[10.0.0.2]:500 
         InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 
       MID=00000001

    ASA2停止授权计时器并验证从ASA1收到的身份验证数据。然后，它生成自己的身份验证数据，与ASA1完全相同。

    以下是ASA2的相关配置：

    crypto ipsec 
         ikev2 
         ipsec-
         proposal 
         AES256
      protocol esp 
         encryption 
         aes-256
      protocol esp 
         integrity 
       sha-1 md5

    以下是调试输出：

    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发送IKE_AUTH数据包，其中包含：

    • ISAKMP报头（SPI/版本/标志）

    • IDr.（响应方身份）

    • AUTH负载

    • SAr2（启动SA — 类似于IKEv1中的第2阶段转换集交换）

    • TSi和TSr（发起方和响应方流量选择器）

    注意：TSi和TSr分别包含发起方和响应方的源地址和目的地址，以转发/接收加密流量。地址范围指定进出该范围的所有流量都通过隧道传输。这些参数与从ASA1接收的参数相同。

    以下是调试输出：

    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发送IKE_AUTH数据包的响应：

    IKEv2-PLAT-4: SENT PKT [IKE_AUTH] 
         [10.0.0.2]:500->[10.0.0.1]:500 
         InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 
       MID=00000001

    ASA1收到来自ASA2的响应：

    IKEv2-PLAT-4: 
         RECV PKT [IKE_AUTH] 
         [10.0.0.2]:500->
         [10.0.0.1]:500 
         InitSPI=0xdfa3b583a4369958 
         RespSPI=0x27c943c13fd94665 
       MID=00000001

    ASA2在SA数据库(SAD)中插入条目：

    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验证并处理此数据包中的身份验证数据，然后将此SA插入其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

    隧道现在对ASA1处于活动状态：

    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

    隧道现在对ASA2处于活动状态：

    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

    注意：响应方隧道通常在发起方隧道之前变为活动状态。

    IKEv2注册过程在ASA1上发生：

    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

    IKEv2注册过程发生在ASA2上：

    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

    子SA调试

    注意：此交换由单个请求和响应对组成，在IKEv1中称为第2阶段交换。初始交换完成后，可以由IKE_SA的任一端发起此交换。

    ASA2启动CHILD_SA交换。这是CREATE_CHILD_SA请求。CHILD_SA数据包通常包含：

    • SA HDR — 包含version.flags和交换类型。

    • Nonce Ni（可选） — 如果将CHILD_SA创建为初始交换的一部分，则不得发送第二个密钥交换(KE)负载和nonce。

    • SA负载

    • KEi(Key-optional)- CREATE_CHILD_SA请求可以选择包含用于附加DH交换的KE负载，以便为CHILD_SA启用更强的前向保密保证。如果SA提供包括不同的DH组，则KEi必须是发起方期望响应方接受的组的元素。如果它猜测错误，CREATE_CHILD_SA交换将失败，并且必须使用其他KEi重试。

    • N（通知负载，可选） — 通知负载，用于将信息数据（例如错误条件和状态转换）传输到IKE对等体。通知负载可以出现在响应消息（通常指定请求被拒绝的原因）、信息交换（以便报告不在IKE请求中的错误）或任何其他消息中，以便指示发送方功能或修改请求的含义。如果此CREATE_CHILD_SA交换重新生成除IKE_SA之外的当前SA的密钥，REKEY_SA类型的前N个负载必须标识重新生成密钥的SA。如果此CREATE_CHILD_SA交换不为当前SA重新生成密钥，则必须省略N个负载。

    • TSi和TSr（可选）：这将显示为其创建SA的流量选择器。在本例中，它位于主机192.168.1.12和192.168.2.99之间。

    以下是CREATE_CHILD_SA调试输出：

    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发送此数据包并等待响应：

    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接收数据包：

    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

    然后，ASA1从ASA2收到此确切的数据包并对其进行验证：

    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现在为CHILD_SA交换构建应答。这是CREATE_CHILD_SA响应。CHILD_SA数据包通常包含：

    • SA HDR — 包含version.flags和交换类型。

    • Nonce Ni（可选） — 如果作为初始交换的一部分创建CHILD_SA，则不得发送第二个KE负载和nonce。

    • SA负载

    • KEi（Key，可选） — CREATE_CHILD_SA请求可以选择包含用于附加DH交换的KE负载，以便为CHILD_SA启用更强的前向保密保证。如果SA提供包括不同的DH组，则KEi必须是发起方期望响应方接受的组的元素。如果它猜测错误，则CREATE_CHILD_SA交换将失败，并且必须使用其他KEi重试。

    • N（通知负载，可选） — 通知负载用于将信息数据（例如错误条件和状态转换）传输到IKE对等体。通知负载可以出现在响应消息（通常指定请求被拒绝的原因）、信息交换（以报告不在IKE请求中的错误）或任何其他消息中，以指示发送方功能或修改请求的含义。如果此CREATE_CHILD_SA交换重新生成除IKE_SA之外的当前SA的密钥，REKEY_SA类型的前N个负载必须标识重新生成密钥的SA。如果此CREATE_CHILD_SA交换不为当前SA重新生成密钥，则必须省略N个负载。

    • TSi和TSr（可选） — 显示为其创建SA的流量选择器。在本例中，它位于主机192.168.1.12和192.168.2.99之间。

    以下是调试输出：

    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发送响应：

    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接收数据包：

    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现在验证数据包：

    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将此子SA条目插入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将此子SA条目插入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

    隧道验证

    使用本节提供的信息验证Internet安全关联和密钥管理协议(ISAKMP)和IPSec隧道配置。

    ISAKMP

    要验证ISAKMP，请输入以下命令：

    show crypto isakmp sa det

    ASA1

    以下是ASA1的输出：

    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

    以下是ASA2的输出：

    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

    要验证IPSec，请输入以下命令：

    show crypto ipsec sa

    ASA1

    以下是ASA1的输出：

    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

    以下是ASA2的输出：

    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

    您还可以检查show crypto ikev2 sa命令的输出，该命令提供的输出与show crypto isakmp sa命令的输出相同：

    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

    相关信息

    修订历史记录

    版本 发布日期 备注
    4.0
    29-Apr-2025
    重新认证和更新格式。
    3.0
    04-Apr-2024
    重新认证。
    1.0
    28-Jan-2013
    初始版本
    TAC Authored

    由思科工程师提供

    • 阿努·姆查科
      领导者技术营销

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