配置IKEV2,IPsec VPN不稳定
本地H3C F1000华三防火墙配置IPsec VPN(IKEV2),同时配置NAT代理内网终端访问互联网,出现IPsec VPN通道中断情况
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IKEV2,参考
https://www.h3c.com/cn/pub/Document_Center/2023/08/WebHelp_H3C_SecPath_FHQCP_DXPZALJ(V7)/default_auto.htm?CHID=904200
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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
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您好,请知:
以下是配置案例,请参考:
本举例是在F1090的R8660P33版本上进行配置和验证的。
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
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。
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
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
配置安全策略
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
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
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
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
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
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
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
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。
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
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
配置安全策略
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
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
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
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
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
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
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
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
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
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
#
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
#
#
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
#
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