分支单外网链路与总部双外网链路形成IPSEC VPN主备隧道配置方法

目录

1 配置需求及说明... 2

1.1 适用的产品系列... 2

1.2 配置需求及实现的效果... 2

2 组网图... 2

3 配置步骤... 3

3.1 两端防火墙上网配置... 3

3.2 分部侧创建IPSEC安全提议... 3

3.3 分部侧创建IKE安全提议... 3

3.4 分部侧创建IKE安全密钥... 3

3.5 分部侧创建IKE安全框架... 3

3.6 分部侧创建IPSEC安全框架... 4

3.7 分部侧创建IPSEC隧道... 4

3.8 分部侧配置到总部内部网段的路由... 4

3.9 保存配置... 5

3.10 总部侧创建IPSEC安全提议... 5

3.11 总部侧创建IKE安全提议... 5

3.12 总部侧创建IKE安全密钥... 5

3.13 总部侧创建IKE安全框架... 5

3.14 分部侧创建IPSEC安全框架... 6

3.15 分部侧创建IPSEC隧道... 6

3.16 总部侧配置到分部内部网段的路由... 6

3.17 保存配置... 6

3.18 隧道验证... 6

3.19 实验注意事项... 9

3.20 设备完整配置... 9

1 配置需求及说明

1.1  适用的产品系列

本案例适用于软件平台为Comware V7系列防火墙：F100-X-G2、F1000-X-G2、F100-X-WiNet、F1000-AK、F10X0等。

注：本案例分支是F100-C-G2的Version 7.1.064, Release 9510P08版本，总部是F1000-C-G2的Version 7.1.064, Release 9323P1801上进行配置和验证的。

1.2  配置需求及实现的效果

某大型互联网企业在全国各地都有分支机构，为提高业务的可靠性需要分支单位与总部单位建立互为主备的IPSEC隧道，总部为双互联网出口、分支为单互联网出口；IP地址及接口规划如下表所示：

2 组网图

3 配置步骤

3.1  两端防火墙上网配置

防火墙上网配置请参考“2.3.2 防火墙外网使用固定IP地址上网配置方法”及“2.3.1 防火墙外网使用拨号上网配置方法”进行配置，本文只针对IPSEC VPN配置进行介绍。

3.2  分部侧创建IPSEC安全提议

#加密类型设置为3des-cbc，认证类型设置为md5。

[H3C]ipsec transform-set 1

[H3C-ipsec-transform-set-1]esp encryption-algorithm 3des-cbc

[H3C-ipsec-transform-set-1]esp authentication-algorithm md5

[H3C-ipsec-transform-set-1]quit

注：IPSEC安全提议只需要创建一个，两条隧道都可以调用此IPSEC安全提议；

3.3  分部侧创建IKE安全提议

#IKE安全提议默认的认证类型为sha1，加密类型为DES-CBC，DH组为DH1，所以不需要配置也存在这些参数。

[H3C]ike proposal 1

[H3C-ike-proposal-1]quit

3.4  分部侧创建IKE安全密钥

#创建两条IKE密钥，地址分别填写总部主链路地址与备链路地址，密码设置为123456。

[H3C]ike keychain 1

[H3C-ike-keychain-1]pre-shared-key address 198.76.28.34 255.255.255.255 key simple 123456

[H3C-ike-keychain-1]quit

[H3C]ike keychain 2

[H3C-ike-keychain-2]pre-shared-key address 202.34.6.90 255.255.255.255 key simple 123456

[H3C-ike-keychain-2]quit

3.5  分部侧创建IKE安全框架

#创建IKE安全框架，协商模式调整为野蛮模式。本端身份识别为a，总部身份识别为b，并指定总部主备链路的IP地址。

[H3C]ike identity fqdn a

[H3C]ike profile 1

[H3C-ike-profile-1]keychain 1

[H3C-ike-profile-1]exchange-mode aggressive

[H3C-ike-profile-1]local-identity fqdn a

[H3C-ike-profile-1]match remote identity address 198.76.28.34

[H3C-ike-profile-1]match remote identity fqdn b

[H3C-ike-profile-1]proposal 1

[H3C-ike-profile-1]quit

[H3C]ike profile 2

[H3C-ike-profile-2]keychain 2

[H3C-ike-profile-2]exchange-mode aggressive

[H3C-ike-profile-2]local-identity fqdn a

[H3C-ike-profile-2]match remote identity address 202.34.6.90

[H3C-ike-profile-2]match remote identity fqdn b

[H3C-ike-profile-2]proposal 1

[H3C-ike-profile-2]quit

3.6  分部侧创建IPSEC安全框架

[H3C]ipsec profile 1 isakmp

[H3C-ipsec-profile-isakmp-1]transform-set 1

[H3C-ipsec-profile-isakmp-1]ike-profile 1

[H3C-ipsec-profile-isakmp-1]quit

[H3C]ipsec profile 2 isakmp

[H3C-ipsec-profile-isakmp-2]transform-set 1

[H3C-ipsec-profile-isakmp-2]ike-profile 2

[H3C-ipsec-profile-isakmp-2]quit

3.7  分部侧创建IPSEC隧道

#创建IPsec隧道的接口Tunnel1并配置IPsec安全框架引用名称为1的IKE profile。

[H3C]interface Tunnel1 mode ipsec

[H3C-Tunnel1] ip address 8.8.8.8 255.255.255.0

[H3C-Tunnel1] source 40.88.9.6

[H3C-Tunnel1] destination 198.76.28.34

[H3C-Tunnel1] tunnel protection ipsec profile 1

[H3C-Tunnel1]quit

#创建IPsec隧道的接口Tunnel2并配置IPsec安全框架引用名称为2的IKE profile。

[H3C]interface Tunnel2 mode ipsec

[H3C-Tunnel2] ip address 9.9.9.9 255.255.255.0

[H3C-Tunnel2] source 40.88.9.6

[H3C-Tunnel2] destination 202.34.6.90

[H3C-Tunnel2] tunnel protection ipsec profile 2

[H3C-Tunnel2]quit

3.8  分部侧配置到总部内部网段的路由

#因为需要tunnel1为主隧道，因此到tunnel1路由的优先级要高于tunnel2路由优先级。

[H3C]ip route-static 192.168.2.0 24 Tunnel1

[H3C]ip route-static 192.168.2.0 24 Tunnel2 preference 70

3.9  保存配置

[H3C]save force

3.10  总部侧创建IPSEC安全提议

#加密类型设置为3des-cbc，认证类型设置为md5。

[H3C]ipsec transform-set 1

[H3C-ipsec-transform-set-1]esp encryption-algorithm 3des-cbc

[H3C-ipsec-transform-set-1]esp authentication-algorithm md5

[H3C-ipsec-transform-set-1]quit

注：IPSEC安全提议只需要创建一个，两条隧道都可以调用此IPSEC安全提议；

3.11  总部侧创建IKE安全提议

#IKE安全提议默认的认证类型为sha1，加密类型为DES-CBC，DH组为DH1，所以不需要配置也存在这些参数。

[H3C]ike proposal 1

[H3C-ike-proposal-1]quit

3.12  总部侧创建IKE安全密钥

#创建两条IKE密钥，地址填写分部侧IP地址，密码设置为123456。

[H3C]ike keychain 1

[H3C-ike-keychain-1]pre-shared-key address 40.88.9.6 255.255.255.255 key simple 123456

[H3C-ike-keychain-1]quit

[H3C]ike keychain 2

[H3C-ike-keychain-2]pre-shared-key address 40.88.9.6 255.255.255.255 key simple 123456

[H3C-ike-keychain-2]quit

3.13  总部侧创建IKE安全框架

#创建IKE安全框架，协商模式调整为野蛮模式。本端身份识别为b，分部身份识别为a。

[H3C]ike identity fqdn b

[H3C]ike profile 1

[H3C-ike-profile-1]keychain 1

[H3C-ike-profile-1]exchange-mode aggressive

[H3C-ike-profile-1]local-identity fqdn b

[H3C-ike-profile-1]match remote identity fqdn a

[H3C-ike-profile-1]proposal 1

[H3C-ike-profile-1]quit

[H3C]ike profile 2

[H3C-ike-profile-2]keychain 2

[H3C-ike-profile-2]exchange-mode aggressive

[H3C-ike-profile-2]local-identity fqdn b

[H3C-ike-profile-2]match remote identity fqdn a

[H3C-ike-profile-2]proposal 1

[H3C-ike-profile-2]quit

3.14  分部侧创建IPSEC安全框架

[H3C]ipsec profile 1 isakmp

[H3C-ipsec-profile-isakmp-1]transform-set 1

[H3C-ipsec-profile-isakmp-1]ike-profile 1

[H3C-ipsec-profile-isakmp-1]quit

[H3C]ipsec profile 2 isakmp

[H3C-ipsec-profile-isakmp-2]transform-set 1

[H3C-ipsec-profile-isakmp-2]ike-profile 2

[H3C-ipsec-profile-isakmp-2]quit

3.15  分部侧创建IPSEC隧道

#创建IPsec隧道的接口Tunnel1并配置IPsec安全框架引用名称为1的IKE profile。

[H3C]interface Tunnel1 mode ipsec

[H3C-Tunnel1] ip address 8.8.8.9 255.255.255.0

[H3C-Tunnel1] source 198.76.28.34

[H3C-Tunnel1] destination 40.88.9.6

[H3C-Tunnel1] tunnel protection ipsec profile 1

[H3C-Tunnel1]quit

#创建IPsec隧道的接口Tunnel2并配置IPsec安全框架引用名称为2的IKE profile。

[H3C]interface Tunnel2 mode ipsec

[H3C-Tunnel2] ip address 9.9.9.10 255.255.255.0

[H3C-Tunnel2] source 202.34.6.90

[H3C-Tunnel2] destination 40.88.9.6

[H3C-Tunnel2] tunnel protection ipsec profile 2

[H3C-Tunnel2]quit

3.16  总部侧配置到分部内部网段的路由

#因为需要tunnel1为主隧道，因此到tunnel1路由的优先级要高于tunnel2路由优先级。

[H3C]ip route-static 192.168.1.0 24 Tunnel1

[H3C]ip route-static 192.168.1.0 24 Tunnel2 preference 70

3.17  保存配置

[H3C]save force

3.18  隧道验证

#分部通过命令行查看display ike sa可以看到隧道状态为RD状态表示ike建立完成。

分支通过display ipsec sa可以看到IPSEC SA基本状态。

#总部通过命令行查看display ike sa可以看到隧道状态为RD状态表示ike建立完成。

#总部通过display ipsec sa可以看到IPSEC SA基本状态。

测试主隧道链路中断后VPN切换情况：将总部侧主链路接口shutdown；备SA备激活；

3.19  实验注意事项

1、Tunnel接口会自动探测目的地址是否可达，如果目的地址可达则路由生效，路由不可达目的地址不生效，所以tunnel无法额外绑定NQA探测；

3.20  设备完整配置

分部侧所有配置：

#

 security-zone intra-zone default permit

#

interface GigabitEthernet1/0/1

 port link-mode route

 ip address 192.168.1.1 255.255.255.0

#

interface GigabitEthernet1/0/2

 port link-mode route

 ip address 40.88.9.6 255.255.255.252

 nat outbound

#

interface Tunnel1 mode ipsec

 ip address 8.8.8.8 255.255.255.0

 source 40.88.9.6

 destination 198.76.28.34

 tunnel protection ipsec profile 1

#             

interface Tunnel2 mode ipsec

 ip address 9.9.9.9 255.255.255.0

 source 40.88.9.6

 destination 202.34.6.90

 tunnel protection ipsec profile 2

#

security-zone name Trust

 import interface GigabitEthernet1/0/1

#

security-zone name Untrust

import interface GigabitEthernet1/0/2

import interface Tunnel1

import interface Tunnel2

#

 ip route-static 0.0.0.0 0 40.88.9.5

 ip route-static 192.168.2.0 24 Tunnel1

 ip route-static 192.168.2.0 24 Tunnel2 preference 70

#

ipsec transform-set 1

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#             

ipsec profile 1 isakmp

 transform-set 1

 ike-profile 1

#

ipsec profile 2 isakmp

 transform-set 1

 ike-profile 2

#

 ike identity fqdn a

#

ike profile 1

 keychain 1

 exchange-mode aggressive

 local-identity fqdn a

 match remote identity fqdn b

 match remote identity fqdn 198.76.28.34

#

ike profile 2

 keychain 2

 exchange-mode aggressive

 local-identity fqdn a

 match remote identity fqdn b

 match remote identity fqdn 202.34.6.90

#

ike keychain 1

 pre-shared-key address 198.76.28.34 255.255.255.255 key cipher $c$3$wN167W6uzXxhCS6A8Sjo9QdYuSH7Sg==

#

ike keychain 2

 pre-shared-key address 202.34.6.90 255.255.255.255 key cipher $c$3$JP8dZ8yofSfIp2+QTKJ4GHKP7zm1OQ==

#

security-policy ip

 rule 1 name test

  action pass

#

总部侧完整配置：

#

 security-zone intra-zone default permit

#

interface GigabitEthernet1/0/1

 port link-mode route

ip address 192.168.2.1 255.255.255.0

#

interface GigabitEthernet1/0/2

 port link-mode route

 ip address 198.76.28.34 255.255.255.252

 nat outbound

#

interface GigabitEthernet1/0/3

 port link-mode route

 ip address 202.34.6.90 255.255.255.252

nat outbound

#

interface Tunnel1 mode ipsec

 ip address 8.8.8.9 255.255.255.0

 source 198.76.28.34

 destination 40.88.9.6

 tunnel protection ipsec profile 1

#

interface Tunnel2 mode ipsec

 ip address 9.9.9.10 255.255.255.0

 source 202.34.6.90

 destination 40.88.9.6

 tunnel protection ipsec profile 2

#

security-zone name Trust

 import interface GigabitEthernet1/0/1

#

security-zone name Untrust

 import interface GigabitEthernet1/0/2

import interface GigabitEthernet1/0/3

import interface Tunnel1

 import interface Tunnel2

#

 ip route-static 0.0.0.0 0 198.76.28.33

 ip route-static 0.0.0.0 0 202.34.6.89 preference 70

 ip route-static 192.168.1.0 24 Tunnel1

 ip route-static 192.168.1.0 24 Tunnel2 preference 70

#

ipsec transform-set 1

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec profile 1 isakmp

 transform-set 1

 ike-profile 1

#

ipsec profile 2 isakmp

 transform-set 1

 ike-profile 2

#

 ike identity fqdn b

#

ike profile 1

 keychain 1

 exchange-mode aggressive

 local-identity fqdn b

 match remote identity fqdn a

#

ike profile 2

 keychain 2

 exchange-mode aggressive

 local-identity fqdn b

 match remote identity fqdn a

#

ike proposal 1

 encryption-algorithm 3des-cbc

 dh group2

 authentication-algorithm md5

#

ike keychain 1

 pre-shared-key address 40.88.9.6 255.255.255.255 key cipher $c$3$SAPwMObhQ33lNY0doESDhauhIUIV8g==

#

ike keychain 2

 pre-shared-key address 40.88.9.6 255.255.255.255 key cipher $c$3$8EV+zB3Yufk80dRI0OER0CAMon1O8w==