This document provides information to understand IKEv2 debugs on the Adaptive Security Appliance (ASA) when preshared key (PSKs) are used.
There are no specific requirements for this document.
This document is not restricted to specific software and hardware versions.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Refer to Cisco Technical Tips Conventions for more information on document conventions.
The packet exchange in IKEv2 is radically different from what it was in IKEv1. Whereas in IKEv1 there was a clearly demarcated phase1 exchange that consisted of 6 packets followed by a phase 2 exchange that consisted of 3 packets, the IKEv2 exchange is variable. For more detailed information on the differences and an explanation of the packet exchange, refer to IKEv2 Packet Exchange and Protocol Level Debugging.
debug crypto ikev2 protocol 127 debug crypto ikev2 platform 127
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 ***** |
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 191.168.1.1 access-list l2l_list extended permit ip host 192.168.2.99 host 191.168.1.12 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 ***** |
ASA1 (Initiator) Message Description | Debugs | ASA2 (Responder) Message Description | |
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ASA1 receives a packet that matches the crypto acl for peer ASA 10.0.0.2. Initiates SA creation. | 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 |
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The first pair of messages is the IKE_SA_INIT exchange. These messages negotiate cryptographic algorithms, exchange nonces, and do a Diffie-Hellman exchange. Relevant Configuration: 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 ***** |
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 |
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Initiator builds IKE_INIT_SA packet. It contains:
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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 d5 6e bc e8 85 25 e7 de 7f 00 d6 c2 d3 |
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The Initiator is sent. | IKEv2-PLAT-4: SENT PKT [IKE_SA_INIT] [10.0.0.1]:500->[10.0.0.2]:500 |
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------------------------------------- Initiator sent IKE_INIT_SA -------------------------------------> | |||
IKEv2-PLAT-4: RECV PKT [IKE_SA_INIT] [10.0.0.1]:500->[10.0.0.2]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x0000000000000000 MID=00000000 |
The Responder receives IKEV_INIT_SA. | ||
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) |
The Responder initiates SA creation for that peer . | ||
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 |
The Responder verifies and processes the IKE_INIT message:
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 ***** |
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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 builds the responder message for IKE_SA_INIT exchange, which is received by ASA1. This packet contains:
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IKEv2-PLAT-4: SENT PKT [IKE_SA_INIT] [10.0.0.2]:500->[10.0.0.1]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000000 |
ASA2 sends out the responder message to ASA1. | ||
<------------------------------------- Responder sent IKE_INIT_SA ------------------------------------- | |||
ASA1 receives the IKE_SA_INIT response packet from ASA2. | IKEv2-PLAT-4: RECV PKT [IKE_SA_INIT] [10.0.0.2]:500-> [10.0.0.1]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000000 |
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 |
The Responder starts the timer for the Auth process. |
ASA1 verifies and processes the response:
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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 |
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The IKE_INIT_SA exchange between the ASAs is now complete. | IKEv2-PROTO-3: (16): Complete SA init exchange |
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The Initiator starts the “IKE_AUTH” exchange and starts generation of the authentication payload. The IKE_AUTH packet contains:
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 |
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 |
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ASA1 sends out the IKE_AUTH packet to ASA2. | IKEv2-PLAT-4: SENT PKT [IKE_AUTH] [10.0.0.1]:500->[10.0.0.2]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000001 |
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------------------------------------- Initiator sent IKE_AUTH -------------------------------------> | |||
IKEv2-PLAT-4: RECV PKT [IKE_AUTH] [10.0.0.1]:500->[10.0.0.2]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000001 |
ASA2 receives this packet from ASA1. | ||
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 stops the auth timer and verifies the authentication data received from ASA1. Then, it generates its own authentication data, exactly like ASA1 did. Relevant Configuration: crypto ipsec ikev2 ipsec- proposal AES256 protocol esp encryption aes-256 protocol esp integrity sha-1 md5 |
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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 |
The IKE_AUTH packet sent from ASA2 contains:
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IKEv2-PLAT-4: SENT PKT [IKE_AUTH] [10.0.0.2]:500->[10.0.0.1]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000001 |
The Responder sends the response for IKE_AUTH. | ||
<------------------------------------- Responder sent ------------------------------------- | |||
The Initiator receives a response from Responder. | IKEv2-PLAT-4: RECV PKT [IKE_AUTH] [10.0.0.2]:500-> [10.0.0.1]:500 InitSPI=0xdfa3b583a4369958 RespSPI=0x27c943c13fd94665 MID=00000001 |
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 |
The Responder inserts an entry into the SAD. |
ASA1 verifies and processes the authentication data in this packet. ASA1 then inserts this SA into its 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 |
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The tunnel is up on the Initiator. | 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 |
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 |
The tunnel is up on the Responder. The Responder tunnel usually comes up before the Initiator. |
IKEv2 Registration process. | 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-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 |
IKEv2 Registration process. |
This exchange consists of a single request/response pair, and was referred to as a phase 2 exchange in IKEv1. It MIGHT be initiated by either end of the IKE_SA after the initial exchanges are completed.
ASA1 CHILD_SA Message Description | Debugs | ASA2 CHILD_SA Message Description | |
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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 initiates the CHILD_SA exchange. This is the CREATE_CHILD_SA request. The CHILD_SA packet typically contains:
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ASA1 receives this packet. | 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 |
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 |
ASA2 sends this packet out and waits for the response. |
ASA1 receives this exact packet from ASA2 and verifies it. | 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 |
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ASA1 now builds the reply for the CHILD_SA exchange. This is the CREATE_CHILD_SA Response. The CHILD_SA packet typically contains:
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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 |
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ASA1 sends the response out. | IKEv2-PLAT-4: SENT PKT [CREATE_CHILD_SA] [10.0.0.1]:500-> [10.0.0.2]:500 InitSPI=0xfd366326e1fed6fe RespSPI=0xa75b9b2582aaecb7 MID=00000006 |
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 receives this packet. |
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 |
ASA2 now verifies the packet | ||
ASA1 inserts this child SA entry in the security association database. | 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 |
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 |
ASA2 inserts this child SA entry in the security association database. |
Command
show crypto isakmp sa det
Output
ASA1
ASA1(config)#sh 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
ASA2(config)#sh 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 |
Command
show crypto ipsec sa
Output
ASA1
ASA1(config)#sh 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
ASA2(config)#sh 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 |
You can also check the output of the show crypto ikev2 sa command. This gives an output identical to the output of the show crypto isakmp sa command:
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
Revision | Publish Date | Comments |
---|---|---|
1.0 |
06-Mar-2013 |
Initial Release |