IKEV2，参考

https://www.h3c.com/cn/pub/Document_Center/2023/08/WebHelp_H3C_SecPath_FHQCP_DXPZALJ(V7)/default_auto.htm?CHID=904200

直接在知识库里搜ipsec案例，或者在官网查ipsec配置视频（在设备配置视频里有）

你这个问题是因为内网流量被丢到公网去了所以ipsec中断

您好，请知：

以下是配置案例，请参考：

使用版本

本举例是在F1090的R8660P33版本上进行配置和验证的。

组网需求

如下图所示，Device A在NAT安全网关内网侧。要求在Device A和Device B之间建立一个IPsec隧道，对Host A所在的子网（10.1.1.2/24）与Host B所在的子网（10.1.2.2/24）之间的数据流进行安全保护。具体需要求如下：

• 协商双方使用缺省的IKEv2安全提议和IKEv2安全策略。

• 第一阶段协商的认证方法为预共享密钥认证。

图-1 IKEv2 NAT穿越配置组网图

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配置步骤

配置Device A

1. 配置接口IP地址

# 根据组网图中规划的信息，配置各接口的IP地址，具体配置步骤如下。

<DeviceA> system-view

[DeviceA] interface gigabitethernet 1/0/1

[DeviceA-GigabitEthernet1/0/1] ip address 1.1.1.1 255.255.0.0

[DeviceA-GigabitEthernet1/0/1] quit

请参考以上步骤配置其他接口的IP地址，具体配置步骤略。

2. 配置静态路由

本举例仅以静态路由方式配置路由信息。实际组网中，请根据具体情况选择相应的路由配置方式。

# 请根据组网图中规划的信息，配置静态路由，本举例假设下一跳IP地址为1.1.1.2，实际使用中请以具体组网情况为准，具体配置步骤如下。

[DeviceA] ip route-static 10.1.2.0 24 1.1.1.2

[DeviceA] ip route-static 2.2.2.2 16 1.1.1.2

3. 配置接口加入安全域。

# 请根据组网图中规划的信息，将接口加入对应的安全域，具体配置步骤如下。

[DeviceA] security-zone name trust

[DeviceA-security-zone-Trust] import interface gigabitethernet 1/0/2

[DeviceA-security-zone-Trust] quit

[DeviceA] security-zone name untrust

[DeviceA-security-zone-Untrust] import interface gigabitethernet 1/0/1

[DeviceA-security-zone-Untrust] quit

4. 配置安全策略

1. 配置安全策略放行Untrust与Local安全域之间的流量，用于设备之间可以建立IPsec隧道。

# 配置名称为ipseclocalout的安全策规则，使Device A可以向Device B发送IPsec隧道协商报文，具体配置步骤如下。

[DeviceA] security-policy ip

[DeviceA-security-policy-ip] rule name ipseclocalout

[DeviceA-security-policy-ip-1-ipseclocalout] source-zone local

[DeviceA-security-policy-ip-1-ipseclocalout] destination-zone untrust

[DeviceA-security-policy-ip-1-ipseclocalout] source-ip-host 1.1.1.1

[DeviceA-security-policy-ip-1-ipseclocalout] destination-ip-host 2.2.2.2

[DeviceA-security-policy-ip-1-ipseclocalout] action pass

[DeviceA-security-policy-ip-1-ipseclocalout] quit

# 配置名称为ipseclocalin的安全策略规则，使Device A可以接收和处理来自Device B的IPsec隧道协商报文，具体配置步骤如下。

[DeviceA-security-policy-ip] rule name ipseclocalin

[DeviceA-security-policy-ip-2-ipseclocalin] source-zone untrust

[DeviceA-security-policy-ip-2-ipseclocalin] destination-zone local

[DeviceA-security-policy-ip-2-ipseclocalin] source-ip-host 2.2.2.2

[DeviceA-security-policy-ip-2-ipseclocalin] destination-ip-host 1.1.1.1

[DeviceA-security-policy-ip-2-ipseclocalin] action pass

[DeviceA-security-policy-ip-2-ipseclocalin] quit

2. 配置安全策略放行Host A与Host B之间的流量

# 配置名称为trust-untrust的安全策略规则，使Host A访问Host B的报文可通，具体配置步骤如下。

[DeviceA-security-policy-ip] rule name trust-untrust

[DeviceA-security-policy-ip-3-trust-untrust] source-zone trust

[DeviceA-security-policy-ip-3-trust-untrust] destination-zone untrust

[DeviceA-security-policy-ip-3-trust-untrust] source-ip-subnet 10.1.1.0 24

[DeviceA-security-policy-ip-3-trust-untrust] destination-ip-subnet 10.1.2.0 24

[DeviceA-security-policy-ip-3-trust-untrust] action pass

[DeviceA-security-policy-ip-3-trust-untrust] quit

# 配置名称为untrust-trust的安全策略规则，使Host B访问Host A的报文可通，具体配置步骤如下。

[DeviceA-security-policy-ip] rule name untrust-trust

[DeviceA-security-policy-ip-4-untrust-trust] source-zone untrust

[DeviceA-security-policy-ip-4-untrust-trust] destination-zone trust

[DeviceA-security-policy-ip-4-untrust-trust] source-ip-subnet 10.1.2.0 24

[DeviceA-security-policy-ip-4-untrust-trust] destination-ip-subnet 10.1.1.0 24

[DeviceA-security-policy-ip-4-untrust-trust] action pass

[DeviceA-security-policy-ip-4-untrust-trust] quit

[DeviceA-security-policy-ip] quit

5. 定义需要保护的数据流

# 配置ACL 3101，定义要保护由子网10.1.1.0/24去往子网10.1.2.0/24的数据流。

[DeviceA] acl advanced 3101

[DeviceA-acl-ipv4-adv-3101] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.1.2.0 0.0.0.255

[DeviceA-acl-ipv4-adv-3101] quit

6. 配置IPsec安全提议，协商封装报文使用的各种安全协议

# 创建IPsec安全提议，两端配置的安全提议参数需要完全相同，具体配置步骤如下。

[DeviceA] ipsec transform-set transform1

[DeviceA-ipsec-transform-set-transform1] protocol esp

[DeviceA-ipsec-transform-set-transform1] esp encryption-algorithm 3des-cbc

[DeviceA-ipsec-transform-set-transform1] esp authentication-algorithm md5

[DeviceA-ipsec-transform-set-transform1] quit

7. 配置IKEv2 keychain，约定通信双方使用的密钥信息

[DeviceA] ikev2 keychain keychain1

[DeviceA-ikev2-keychain-keychain1] peer peer1

[DeviceA-ikev2-keychain-keychain1-peer-peer1] address 2.2.2.2 16

[DeviceA-ikev2-keychain-keychain1-peer-peer1] identity address 2.2.2.2

[DeviceA-ikev2-keychain-keychain1-peer-peer1] pre-shared-key plaintext 123

[DeviceA-ikev2-keychain-keychain1-peer-peer1] quit

[DeviceA-ikev2-keychain-keychain1] quit

8. 配置IKEv2 profile，约定建立IKE SA所需的安全参数

[DeviceA] ikev2 profile profile1

[DeviceA-ikev2-profile-profile1] keychain keychain1

[DeviceA-ikev2-profile-profile1] identity local fqdn ***.***

[DeviceA-ikev2-profile-profile1] match remote identity address 2.2.2.2 255.255.0.0

[DeviceA-ikev2-profile-profile1] authentication-method local pre-share

[DeviceA-ikev2-profile-profile1] authentication-method remote pre-share

[DeviceA-ikev2-profile-profile1] quit

9. 配置IPsec安全策略，建立IPsec隧道，保护需要防护的数据流

# 创建一条手工方式的IPsec安全策略，引用需要保护数据流的ACL和所需的IPsec安全提议，指定对端的IP地址，具体配置步骤如下。

[DeviceA] ipsec policy policy1 1 isakmp

[DeviceA-ipsec-policy-isakmp-policy1-1] remote-address 2.2.2.2

[DeviceA-ipsec-policy-isakmp-policy1-1] transform-set transform1

[DeviceA-ipsec-policy-isakmp-policy1-1] security acl 3101

[DeviceA-ipsec-policy-isakmp-policy1-1] ikev2-profile profile1

[DeviceA-ipsec-policy-isakmp-policy1-1] quit

10. 在接口上应用IPsec安全策略，对接口上的流量进行保护

[DeviceA] interface gigabitethernet 1/0/1

[DeviceA-GigabitEthernet1/0/1] ipsec apply policy policy1

[DeviceA-GigabitEthernet1/0/1] quit

配置Device B

1. 配置接口IP地址

# 根据组网图中规划的信息，配置各接口的IP地址，具体配置步骤如下。

<DeviceB> system-view

[DeviceB] interface gigabitethernet 1/0/1

[DeviceB-GigabitEthernet1/0/1] ip address 2.2.2.2 255.255.0.0

[DeviceB-GigabitEthernet1/0/1] quit

请参考以上步骤配置其他接口的IP地址，具体配置步骤略。

2. 配置静态路由

本举例仅以静态路由方式配置路由信息。实际组网中，请根据具体情况选择相应的路由配置方式。

# 请根据组网图中规划的信息，配置静态路由，本举例假设下一跳IP地址为2.2.2.1，实际使用中请以具体组网情况为准，具体配置步骤如下。

[DeviceB] ip route-static 10.1.1.0 24 2.2.2.1

[DeviceB] ip route-static 1.1.1.1 16 2.2.2.1

3. 配置接口加入安全域。

# 请根据组网图中规划的信息，将接口加入对应的安全域，具体配置步骤如下。

[DeviceB] security-zone name trust

[DeviceB-security-zone-Trust] import interface gigabitethernet 1/0/2

[DeviceB-security-zone-Trust] quit

[DeviceB] security-zone name untrust

[DeviceB-security-zone-Untrust] import interface gigabitethernet 1/0/1

[DeviceB-security-zone-Untrust] quit

4. 配置安全策略

1. 配置安全策略放行Untrust与Local安全域之间的流量，用于设备之间可以建立IPsec隧道。

# 配置名称为ipseclocalout的安全策规则，使Device B可以向Device A发送IPsec隧道协商报文，具体配置步骤如下。

[DeviceB] security-policy ip

[DeviceB-security-policy-ip] rule name ipseclocalout

[DeviceB-security-policy-ip-1-ipseclocalout] source-zone local

[DeviceB-security-policy-ip-1-ipseclocalout] destination-zone untrust

[DeviceB-security-policy-ip-1-ipseclocalout] source-ip-host 2.2.2.2

[DeviceB-security-policy-ip-1-ipseclocalout] destination-ip-host 3.3.3.1

[DeviceB-security-policy-ip-1-ipseclocalout] action pass

[DeviceB-security-policy-ip-1-ipseclocalout] quit

# 配置名称为ipseclocalin的安全策略规则，使Device B可以接收和处理来自Device A的IPsec隧道协商报文，具体配置步骤如下。

[DeviceB-security-policy-ip] rule name ipseclocalin

[DeviceB-security-policy-ip-2-ipseclocalin] source-zone untrust

[DeviceB-security-policy-ip-2-ipseclocalin] destination-zone local

[DeviceB-security-policy-ip-2-ipseclocalin] source-ip-host 3.3.3.1

[DeviceB-security-policy-ip-2-ipseclocalin] destination-ip-host 2.2.2.2

[DeviceB-security-policy-ip-2-ipseclocalin] action pass

[DeviceB-security-policy-ip-2-ipseclocalin] quit

2. 配置安全策略放行Host B与Host A之间的流量

# 配置名称为trust-untrust的安全策略规则，使Host B访问Host A的报文可通，具体配置步骤如下。

[DeviceB-security-policy-ip] rule name trust-untrust

[DeviceB-security-policy-ip-3-trust-untrust] source-zone trust

[DeviceB-security-policy-ip-3-trust-untrust] destination-zone untrust

[DeviceB-security-policy-ip-3-trust-untrust] source-ip-subnet 10.1.2.0 24

[DeviceB-security-policy-ip-3-trust-untrust] destination-ip-subnet 10.1.1.0 24

[DeviceB-security-policy-ip-3-trust-untrust] action pass

[DeviceB-security-policy-ip-3-trust-untrust] quit

# 配置名称为untrust-trust的安全策略规则，使Host A访问Host B的报文可通，具体配置步骤如下。

[DeviceB-security-policy-ip] rule name untrust-trust

[DeviceB-security-policy-ip-4-untrust-trust] source-zone untrust

[DeviceB-security-policy-ip-4-untrust-trust] destination-zone trust

[DeviceB-security-policy-ip-4-untrust-trust] source-ip-subnet 10.1.1.0 24

[DeviceB-security-policy-ip-4-untrust-trust] destination-ip-subnet 10.1.2.0 24

[DeviceB-security-policy-ip-4-untrust-trust] action pass

[DeviceB-security-policy-ip-4-untrust-trust] quit

[DeviceB-security-policy-ip] quit

5. 定义需要保护的数据流

# 配置ACL 3101，定义要保护由子网10.1.2.0/24去往子网10.1.1.0/24的数据流。

[DeviceB] acl advanced 3101

[DeviceB-acl-ipv4-adv-3101] rule 0 permit ip source 10.1.2.0 0.0.0.255 destination 10.1.1.0 0.0.0.255

[DeviceB-acl-ipv4-adv-3101] quit

6. 配置IPsec安全提议，协商封装报文使用的各种安全协议

# 创建IPsec安全提议，两端配置的安全提议参数需要完全相同，具体配置步骤如下。

[DeviceB] ipsec transform-set transform1

[DeviceB-ipsec-transform-set-transform1] protocol esp

[DeviceB-ipsec-transform-set-transform1] esp encryption-algorithm 3des-cbc

[DeviceB-ipsec-transform-set-transform1] esp authentication-algorithm md5

[DeviceB-ipsec-transform-set-transform1] quit

7. 配置IKEv2 keychain，约定通信双方使用的密钥信息

[DeviceB]ikev2 keychain keychain1

[DeviceB-ikev2-keychain-keychain1] peer peer1

[DeviceB-ikev2-keychain-keychain1-peer-peer1] address 3.3.3.1 16

[DeviceB-ikev2-keychain-keychain1-peer-peer1] identity address 3.3.3.1

[DeviceB-ikev2-keychain-keychain1-peer-peer1] pre-shared-key plaintext 123

[DeviceB-ikev2-keychain-keychain1-peer-peer1] quit

[DeviceB-ikev2-keychain-keychain1] quit

8. 配置IKEv2 profile，约定建立IKE SA所需的安全参数

[DeviceB] ikev2 profile profile1

[DeviceB-ikev2-profile-profile1] keychain keychain1

[DeviceB-ikev2-profile-profile1] match remote identity fqdn ***.***

[DeviceB-ikev2-profile-profile1] authentication-method local pre-share

[DeviceB-ikev2-profile-profile1] authentication-method remote pre-share

[DeviceB-ikev2-profile-profile1] quit

9. 配置IPsec安全策略模板，用于创建IPsec安全策略

[DeviceB] ipsec policy-template template1 1

[DeviceB-ipsec-policy-template-template1-1] remote-address 3.3.3.1

[DeviceB-ipsec-policy-template-template1-1] security acl 3101

[DeviceB-ipsec-policy-template-template1-1] transform-set transform1

[DeviceB-ipsec-policy-template-template1-1] ikev2-profile profile1

[DeviceB-ipsec-policy-template-template1-1] quit

10. 创建IPsec安全策略，建立IPsec隧道，保护需要防护的数据流

[DeviceB] ipsec policy policy1 1 isakmp template template1

11. 在接口上应用IPsec安全策略，对接口上的流量进行保护

[DeviceB] interface gigabitethernet 1/0/1

[DeviceB-GigabitEthernet1/0/1] ipsec apply policy policy1

[DeviceB-GigabitEthernet1/0/1] quit

验证配置

以上配置完成后，子网10.1.1.0/24若向子网10.1.2.0/24发送报文，将触发IKEv2协商。

# 可通过如下显示信息查看到Device A上IKEv2协商成功后生成的IKEv2 SA。

[DeviceA] display ikev2 sa

Tunnel ID   Local                       Remote                      Status

---------------------------------------------------------------------------

  1        1.1.1.1/4500                  2.2.2.2/4500                  EST

Status:

IN-NEGO: Negotiating, EST: Established, DEL:Deleting

 [DeviceA] display ikev2 sa verbose

  Tunnel ID: 45

  Local IP/Port: 1.1.1.1/4500

  Remote IP/Port: 2.2.2.2/4500

  Outside VRF: -

  Inside VRF: -

  Local SPI: 372228d699a33c63

  Remote SPI: 75c537621b4a7190

  Local ID type: ID_FQDN

  Local ID: ***.***

  Remote ID type: ID_IPV4_ADDR

  Remote ID: 2.2.2.2

  Auth sign method: Pre-shared key

  Auth verify method: Pre-shared key

  Integrity algorithm: SHA1

  PRF algorithm: SHA1

  Encryption algorithm: AES-CBC-128

  Life duration: 86400 secs

  Remaining key duration: 86177 secs

  Diffie-Hellman group: MODP1536/Group5

  NAT traversal: Detected

  DPD: Interval 0 secs, retry interval 0 secs

  Transmitting entity: Initiator

  Local window: 1

  Remote window: 1

  Local request message ID: 2

  Remote request message ID: 0

  Local next message ID: 2

  Remote next message ID: 0

# 可通过如下显示信息查看到IKEv2协商生成的IPsec SA。

[DeviceA] display ipsec sa

-------------------------------

Interface: GigabitEthernet1/0/1

-------------------------------

  -----------------------------

  IPsec policy: policy1

  Sequence number: 1

  Mode: ISAKMP

  -----------------------------

    Tunnel id: 0

    Encapsulation mode: tunnel

    Perfect Forward Secrecy:

    Inside VPN:

    Extended Sequence Numbers enable: N

    Traffic Flow Confidentiality enable: N

    Transmitting entity: Initiator

    Path MTU: 1435

    Tunnel:

        local  address/port: 1.1.1.1/500

        remote address/port: 2.2.2.2/500

    Flow:

        sour addr: 10.1.1.0/255.255.255.0  port: 0  protocol: ip

        dest addr: 10.2.1.0/255.255.255.0  port: 0  protocol: ip

    [Inbound ESP SAs]

      SPI: 830667426 (0x3182faa2)

      Connection ID: 605590388736

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/2313

      Max received sequence-number:

      Anti-replay check enable: Y

      Anti-replay window size: 64

      UDP encapsulation used for NAT traversal: Y

      Status: Active

    [Outbound ESP SAs]

      SPI: 3516214669 (0xd1952d8d)

      Connection ID: 227633266689

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/2313

      Max sent sequence-number:

      UDP encapsulation used for NAT traversal: Y

      Status: Active

配置文件

Device A

#

interface GigabitEthernet1/0/1

 ip address 1.1.1.1 255.255.0.0

 ipsec apply policy policy1

#

interface GigabitEthernet1/0/2

 ip address 10.1.1.1 255.255.255.0

#

security-zone name Trust

 import interface GigabitEthernet1/0/2

#

security-zone name Untrust

 import interface GigabitEthernet1/0/1

#

 ip route-static 2.2.0.0 16 1.1.1.2

 ip route-static 10.1.2.0 24 1.1.1.2

#

acl advanced 3101

 rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.1.2.0 0.0.0.255

#

ipsec transform-set transform1

 encapsulation-mode tunnel

 protocol esp

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec policy policy1 1 isakmp

 transform-set transform1

 security acl 3101

 remote-address 2.2.2.2

 ikev2-profile profile1

#

ikev2 keychain keychain1

 peer peer1

  address 2.2.2.2 255.255.0.0

  identity address 2.2.2.2

  pre-shared-key plaintext 123

#

ikev2 profile profile1

 authentication-method local pre-share

 authentication-method remote pre-share

 keychain keychain1

 identity local fqdn ***.***

 match remote identity address 2.2.2.2 255.255.0.0

#

security-policy ip

 rule 0 name ipseclocalout

  action pass

  source-zone local

  destination-zone untrust

  source-ip-host 1.1.1.1

  destination-ip-host 2.2.2.2

 rule 1 name ipseclocalin

  action pass

  source-zone untrust

  destination-zone local

  source-ip-host 2.2.2.2

  destination-ip-host 1.1.1.1

 rule 2 name trust-untrust

  action pass

  source-zone trust

  destination-zone untrust

  source-ip-subnet 10.1.1.0 255.255.255.0

  destination-ip-subnet 10.1.2.0 255.255.255.0

 rule 3 name untrust-trust

  action pass

  source-zone untrust

  destination-zone trust

  source-ip-subnet 10.1.2.0 255.255.255.0

  destination-ip-subnet 10.1.1.0 255.255.255.0

#

Device B

#

interface GigabitEthernet1/0/1

 ip address 2.2.2.2 255.255.0.0

 ipsec apply policy policy1

#

interface GigabitEthernet1/0/2

 ip address 10.1.2.1 255.255.255.0

#

security-zone name Trust

 import interface GigabitEthernet1/0/2

#

security-zone name Untrust

 import interface GigabitEthernet1/0/1

#

 ip route-static 1.1.0.0 16 2.2.2.1

 ip route-static 10.1.1.0 24 2.2.2.1

#

acl advanced 3101

 rule 0 permit ip source 10.1.2.0 0.0.0.255 destination 10.1.1.0 0.0.0.255

#

ipsec transform-set transform1

 encapsulation-mode tunnel

 protocol esp

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec policy-template template1 1

 transform-set transform1

 security acl 3101

 remote-address 3.3.3.1

 ikev2-profile profile1

#

ipsec policy policy1 1 isakmp template template1

#

ikev2 keychain keychain1

 peer peer1

  address 3.3.3.1 255.255.0.0

  identity address 3.3.3.1

  pre-shared-key plaintext 123

#

ikev2 profile profile1

 authentication-method local pre-share

 authentication-method remote pre-share

 keychain keychain1

 match remote identity fqdn ***.***

#

security-policy ip

 rule 0 name ipseclocalout

  action pass

  source-zone local

  destination-zone untrust

  source-ip-host 2.2.2.2

  destination-ip-host 3.3.3.1

 rule 1 name ipseclocalin

  action pass

  source-zone untrust

  destination-zone local

  source-ip-host 3.3.3.1

  destination-ip-host 2.2.2.2

 rule 2 name trust-untrust

  action pass

  source-zone trust

  destination-zone untrust

  source-ip-subnet 10.1.2.0 255.255.255.0

  destination-ip-subnet 10.1.1.0 255.255.255.0

 rule 3 name untrust-trust

  action pass

  source-zone untrust

  destination-zone trust

  source-ip-subnet 10.1.1.0 255.255.255.0

  destination-ip-subnet 10.1.2.0 255.255.255.0

#