PSKによるサイト間VPNでのASA IKEv2デバッグの使用

はじめに

このドキュメントでは、Cisco適応型セキュリティアプライアンス(ASA)でのインターネットキーエクスチェンジバージョン2(IKEv2)のデバッグについて説明します。

前提条件

要件

このドキュメントに関する固有の要件はありません。

使用するコンポーネント

このドキュメントの内容は、特定のソフトウェアやハードウェアのバージョンに限定されるものではありません。

このドキュメントの情報は、特定のラボ環境にあるデバイスに基づいて作成されました。このドキュメントで使用するすべてのデバイスは、クリアな（デフォルト）設定で作業を開始しています。本稼働中のネットワークでは、各コマンドによって起こる可能性がある影響を十分確認してください。

主な問題

IKEv2で使用されるパケット交換プロセスは、IKEv1で使用されるものとは根本的に異なります。IKEv1では、6つのパケットで構成される明確に区別されたフェーズ1交換があり、次に3つのパケットで構成されるフェーズ2交換があります。IKEv2交換は可変です。

ヒント：パケット交換プロセスの相違点と説明の詳細については、「IKEv2のパケット交換とプロトコルレベルデバッグ」を参照してください。

使用したデバッグ

次の2つのデバッグはIKEv2に使用されます。

debug crypto ikev2 protocol 127
debug crypto ikev2 platform 127

ASA の設定

このセクションでは、ASA1（発信側）とASA2（応答側）の設定例を紹介します。

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 *****

デバッグ

この項では、ASA1（イニシエータ）とASA2（レスポンダ）のトンネルネゴシエーションおよび子セキュリティアソシエーション(SA)のデバッグとメッセージの説明について説明します。

トンネル ネゴシエーション

ASA1はピアASA 10.0.0.2の暗号化アクセスコントロールリスト(ACL)と一致するパケットを受信し、SAの作成を開始します。

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

送信されるメッセージの最初のペアはIKE_SA_INIT交換用です。これらのメッセージは、暗号化アルゴリズムのネゴシエート、ナンスの交換、およびDiffie-Hellman(DH)交換を実行します。

ASA1に関連する設定を次に示します。

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 *****

この交換のデバッグ出力を次に示します。

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

次に、ASA1はIKE_INIT_SAパケットを構築します。このパケットには次のものが含まれます。

• ISAKMPヘッダー（SPI/バージョン/フラグ）
  
  
• SAi1（IKEの発信側がサポートする暗号化アルゴリズム）
  
  
• KEi（発信側のDH公開キーの値）
  
  
• N（発信側のナンス）

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

次に、IKE_INIT_SAパケットがASA1によって送信されます。

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

ASA2はIKEV_INIT_SAパケットを受信します。

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が、そのピアのSA作成を開始します。

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はIKE_INITメッセージを確認して処理します。

1. ASA1が提供する暗号スイートを選択する
   
   
2. 独自のDH秘密キーを計算する
   
   
3. この IKE_SA 用のすべてキーの導出元となる SKEYID の値を計算します。次に送信されるすべてのメッセージのヘッダーを除くすべてのメッセージが暗号化され、認証されます。暗号化と整合性の保護に使用されるキーは、SKEYIDから取得され、次のように呼ばれます。
   
   
   • SK_eは暗号化に使用されます。
     
     
   • SK_aは認証に使用されます。
     
     
   • SK_d が計算され、さらに CHILD_SA のキーの材料の計算に使用されます。SK_e と SK_a は、方向ごとに別に計算されます。

ASA2に関連する設定を次に示します。

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 *****

デバッグ出力を次に示します。

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

次にASA2は、ASA1が受信するIKE_SA_INIT交換の応答側メッセージを作成します。このパケットには次が含まれます。

• ISAKMP ヘッダー（SPI、バージョン、フラグ）
  
  
• SAr1（IKEの応答側が選択する暗号化アルゴリズム）
  
  
• KEr（応答側の DH 公開キーの値）
  
  
• 応答側のナンス

デバッグ出力を次に示します。

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はASA1にレスポンダメッセージを送信します。

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はASA2からIKE_SA_INIT応答パケットを受信します。

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が許可プロセスのタイマーを起動します。

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 は応答を確認して次の処理を行います。

1. 発信側のDH秘密キーが計算されます。
   
   
2. イニシエータSKEYIDが生成されます。

デバッグ出力を次に示します。

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間のIKE_INIT_SA交換が完了しました。

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

ASA1はIKE_AUTH交換を開始し、認証ペイロードの生成を開始します。IKE_AUTH パケットには次が含まれます。

• ISAKMP ヘッダー（SPI、バージョン、フラグ）
  
  
• IDi（イニシエータID）
  
  
• AUTHペイロード
  
  
• SAi2（IKEv1のフェーズ2トランスフォームセット交換と同様にSAを開始）
  
  
• TSiおよびTSr（発信側および応答側のトラフィックセレクタ）

注:TSiとTSrには、暗号化されたトラフィックを送受信するための発信側と応答側の送信元アドレスと宛先アドレスがそれぞれ含まれています。このアドレス範囲は、宛先および送信元がこの範囲内であるすべてのトラフィックをトンネルすることを指定します。プロポーザルが応答側で受け入れ可能な場合、同一のTSペイロードを返します。

また、トリガーパケットと一致するproxy_IDペアに対して最初のCHILD_SAが作成されます。

ASA1に関連する設定を次に示します。

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

デバッグ出力を次に示します。

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はIKE_AUTHパケットをASA2に送信します。

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

ASA2はASA1から次のパケットを受信します。

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

ASA2は許可タイマーを停止し、ASA1から受信した認証データを確認します。次に、ASA1とまったく同様に、独自の認証データを生成します。

ASA2に関連する設定を次に示します。

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

デバッグ出力を次に示します。

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は次の内容を含むIKE_AUTHパケットを送信します。

• ISAKMP ヘッダー（SPI、バージョン、フラグ）
  
  
• IDr（応答側のID）
  
  
• AUTHペイロード
  
  
• SAr2（IKEv1のフェーズ2トランスフォームセット交換と同様にSAを開始）
  
  
• TSiおよびTSr（発信側および応答側のトラフィックセレクタ）

注:TSiとTSrには、暗号化されたトラフィックを送受信するための発信側と応答側の送信元アドレスと宛先アドレスがそれぞれ含まれています。このアドレス範囲は、宛先および送信元がこの範囲内であるすべてのトラフィックをトンネルすることを指定します。これらのパラメータは、ASA1から受信したパラメータと同じです。

デバッグ出力を次に示します。

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がIKE_AUTHパケットの応答を送信します。

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

ASA1はASA2から応答を受信します。

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

ASA2はエントリをSAデータベース(SAD)に挿入します。

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は、このパケットの認証データを確認して処理し、次のSAをSADに挿入します。

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

ASA1のトンネルがアクティブになります。

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 

ASA2のトンネルがアクティブになります。

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：応答側トンネルは通常、発信側トンネルよりも先にアクティブになります。

IKEv2登録プロセスはASA1で発生します。

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登録プロセスはASA2で発生します。

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のデバッグ

注：この交換は、単一の要求と応答のペアで構成され、IKEv1ではフェーズ2交換と呼ばれます。最初の交換が完了した後、IKE_SAのどちらの側からでも開始できます。

ASA2 が CHILD_SA 交換を開始します。これは CREATE_CHILD_SA 要求です。CHILD_SA パケットには一般的に次が含まれます。

• SA HDR：これにはversion.flagsと交換タイプが含まれています。
  
  
• ナンスNi（オプション）:CHILD_SAが初期交換の一部として作成される場合、2番目のキー交換(KE)ペイロードとナンスは送信されません。
  
  
• SA ペイロード
  
  
• KEi(Key-optional):CREATE_CHILD_SA要求には、CHILD_SAの転送秘密の保証を強化するために、追加のDH交換のKEペイロードをオプションで含めることができます。SAが異なるDHグループを含めることを提供する場合、発信側が応答側の受け入れを期待するグループの要素がKEiである必要があります。推測が正しくない場合、CREATE_CHILD_SA交換は失敗し、別のKEiで再試行する必要があります。
  
  
• N（Notifyペイロード、オプション）:Notifyペイロードは、エラー状態や状態遷移などの情報データをIKEピアに送信するために使用されます。Notifyペイロードは、応答メッセージ（通常は要求が拒否された理由を示す）、情報交換（IKE要求以外のエラーを報告する）、またはその他の任意のメッセージに含まれ、送信者の機能を示したり要求の意味を変更するために使用されます。このCREATE_CHILD_SA交換がIKE_SA以外の現在のSAのキーを再生成する場合、タイプREKEY_SAのリードNペイロードはキー再生成されるSAを識別する必要があります。このCREATE_CHILD_SA交換で現在のSAのキー再生成が行われない場合、Nペイロードは省略する必要があります。
  
  
• TSiおよびTSr（オプション）:SAが作成されるトラフィックセレクタを示します。この例では、ホスト 192.168.1.12 とホスト 192.168.2.99 の間です。

CREATE_CHILD_SAデバッグ出力を次に示します。

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はこのパケットを送信し、応答を待機します。

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はパケットを受信します。

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

次に、ASA1はASA2から次のパケットを受信し、確認します。

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 は CHILD_SA 交換の返信を作成します。これは CREATE_CHILD_SA 応答です。CHILD_SA パケットには一般的に次が含まれます。

• SA HDR：これにはversion.flagsと交換タイプが含まれています。
  
  
• ナンスNi（オプション）:CHILD_SAが初期交換の一部として作成される場合、2番目のKEペイロードとナンスは送信されません。
  
  
• SA ペイロード
  
  
• KEi（キー、オプション）:CREATE_CHILD_SA要求には、CHILD_SAの転送秘密の保証を強化するために、追加のDH交換のKEペイロードをオプションで含めることができます。SAが異なるDHグループを含めることを提供する場合、発信側が応答側の受け入れを期待するグループの要素がKEiである必要があります。推測に失敗した場合、CREATE_CHILD_SA の交換は失敗し、別の KEi を使用して再試行を行う必要があります。
  
  
• N（Notifyペイロード、オプション）:Notifyペイロードは、エラー状態や状態遷移などの情報データをIKEピアに送信するために使用されます。Notifyペイロードは、応答メッセージ（通常は要求が拒否された理由を示す）、情報の交換（IKE要求以外のエラーを報告するため）、またはその他の任意のメッセージに含まれ、送信側の機能を示したり、要求の意味を変更するために使用されます。このCREATE_CHILD_SA交換がIKE_SA以外の現在のSAのキーを再生成する場合、タイプREKEY_SAのリードNペイロードはキー再生成されるSAを識別する必要があります。このCREATE_CHILD_SA交換で現在のSAのキー再生成が行われない場合、Nペイロードは省略する必要があります。
  
  
• TSiおよびTSr（オプション）:SAが作成されるトラフィックセレクタを示します。この例では、ホスト 192.168.1.12 とホスト 192.168.2.99 の間です。

デバッグ出力を次に示します。

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が応答を送信します。

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はパケットを受信します。

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がパケットを確認します。

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は、次の子SAエントリをSADに挿入します。

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は、次の子SAエントリをSADに挿入します。

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

トンネルの確認

このセクションで説明する情報を使用して、Internet Security Association and Key Management Protocol(ISAKMP)とIPSecトンネルの設定を確認します。

ISAKMP

ISAKMPを確認するには、次のコマンドを入力します。

show crypto isakmp sa det

ASA1

ASA1の出力を次に示します。

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

ASA2の出力を次に示します。

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

IPSecを確認するには、次のコマンドを入力します。

show crypto ipsec sa

ASA1

ASA1の出力を次に示します。

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

ASA2の出力を次に示します。

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

show crypto ikev2 saコマンドの出力を確認することもできます。その結果、show crypto isakmp saコマンドの出力と同じ出力が表示されます。

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

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