大佬们,现场的情况就是左边的总部,可能会有双出口的情况,如果要实现备份的话,怎样配置时最优的,官网搜了几个案例完全没看到,上面的配置都感觉缺了点,有没有更好的配置解决方案推一下,非常感谢
我试了一下用野蛮模式的方式,然后在不同的接口调用ipsec,这样可以实现备份,但是切换的过程中会丢五六个包,具体配置如下:
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最佳答案
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
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。
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:
公司名称 | 外网接口 | 公网地址/掩码 | 公网网关 | 内网接口 | 内网地址/掩码 |
总部(主链路) | G1/0/2 | 198.76.28.34/30 | 198.76.28.33 |
G1/0/1 |
192.168.2.0/24 |
总部(备链路) | G1/0/3 | 202.34.6.90/30 | 202.34.6.89 | ||
分部 | G1/0/2 | 40.88.9.6/30 | 40.88.9.5 | G1/0/1 | 192.168.1.0/24 |
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。
#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;
#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
#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
#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
[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
#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
#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
[H3C]save force
#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;
#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
#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
#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
[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
#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
#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
[H3C]save force
#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;
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;
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==
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