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H3C MSR系列路由器典型配置举例(V5)-6W100

18-MSR系列路由器IPSec VPN多分支安全模板NAT穿越功能的配置举例

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18-MSR系列路由器IPSec VPN多分支安全模板NAT穿越功能的配置举例

MSR系列路由器IPsec VPN多分支安全模板NAT穿越功能的配置举例

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H3C_彩色.emf

 



1  简介

本文档介绍MSR路由器IPsec VPN多分支安全模板NAT穿越功能的典型配置举例。

2  配置前提

本文档不严格与具体软、硬件版本对应,如果使用过程中与产品实际情况有差异,请参考相关产品手册,或以设备实际情况为准。

本文档中的配置均是在实验室环境下进行的配置和验证,配置前设备的所有参数均采用出厂时的缺省配置。如果您已经对设备进行了配置,为了保证配置效果,请确认现有配置和以下举例中的配置不冲突。

本文档假设您已了解IPsec和NAT特性。

3  配置举例

3.1  组网需求

图1所示,Router A为某机构总部网关,Router D和Router E是两个分支网关,Router B和

Router C为分支提供NAT转换。要求:为了接受协商发起端的访问控制列表设置,Router A采用安全模板方式分别与Router D和Router E建立IPsec VPN,为总部和分支流量进行加密传输。

图1 IPSec VPN多分支安全模板NAT穿越功能的配置举例组网图

设备

接口

IP地址

设备

接口

IP地址

Router A

Eth0/0

1.0.0.60/24

Router D

Eth0/0

10.0.1.2/24

 

Eth0/1

172.0.0.1/24

 

Eth0/1

192.168.1.1/24

Router B

Eth0/0

1.0.0.1/24

Router E

Eth0/0

10.0.2.2/24

 

Eth0/1

10.0.1.1/24

 

Eth0/1

192.168.2.1/24

Router C

Eth0/0

1.0.0.2/24

 

 

 

 

Eth0/1

10.0.2.1/24

 

 

 

 

3.2  配置思路

·     为了穿越NAT,总部与分支之间需要配置成野蛮模式。

·     Router A采用安全模板方式时不需要配置ACL,接受协商发起端的ACL。但Router D和Router E需要配置ACL,使特定流量匹配安全策略;

·     为了访问总部外网接口,Router D和Router E必须配置静态路由。

3.3  使用版本

本举例是在Release 2317版本上进行配置和验证的。

3.4  配置注意事项

·     在配置IPsec之前,需要保证总部与分支间路由可达。

·     ACL一定不要最后添加一条deny ip的规则,该配置会导致不需要加密的流量被丢弃。

3.5  配置步骤

3.5.1  Router A的配置

# 配置接口Ethernet0/1的IP地址。

<RouterA> system-view

[RouterA] interface ethernet 0/1

[RouterA-Ethernet0/1] ip address 172.0.0.1 255.255.255.0

[RouterA-Ethernet0/1] quit

# 配置接口Ethernet0/0的IP地址。

[RouterA] interface ethernet 0/0

[RouterA-Ethernet0/0] ip address 1.0.0.60 255.255.255.0

[RouterA-Ethernet0/0] quit

# 配置到NAT设备的静态路由,目的地址为NAT转换后的地址。

[RouterA] ip route-static 11.0.0.0 255.0.0.0 1.0.0.1

[RouterA] ip route-static 12.0.0.0 255.0.0.0 1.0.0.2

# 配置到分支内网的静态路由。

[RouterA] ip route-static 192.168.1.0 255.255.255.0 1.0.0.1

[RouterA] ip route-static 192.168.2.0 255.255.255.0 1.0.0.2

# 配置本端安全网关的名字为center。

[RouterA] ike local-name center

# 创建一个IKE对等体branch1,并进入IKE-Peer视图。

[RouterA] ike peer branch1

# 配置IKE第一阶段的协商模式为野蛮模式。

[RouterA-ike-peer-branch1] exchange-mode aggressive

# 选择IKE第一阶段的协商过程中使用ID的类型为name。

[RouterA-ike-peer-branch1] id-type name

# 配置对端安全网关的名字。

[RouterA-ike-peer-branch1] remote-name branch1

# 配置预共享密钥。

[RouterA-ike-peer-branch1] pre-shared-key 123

# 启用NAT穿越功能。

[RouterA-ike-peer-branch1] nat traversal

[RouterA-ike-peer-branch1] quit

# 配置IKE对等体branch2。

[RouterA] ike peer branch2

[RouterA-ike-peer-branch2] pre-shared-key 123

[RouterA-ike-peer-branch2] exchange-mode aggressive

[RouterA-ike-peer-branch2] id-type name

[RouterA-ike-peer-branch2] remote-name branch2

[RouterA-ike-peer-branch2] nat traversal

[RouterA-ike-peer-branch2] quit

# 采用安全提议的缺省配置。

[RouterA] ipsec proposal def

# 配置ESP协议采用md5认证算法。

[RouterA-ipsec-transform-set-def] esp authentication-algorithm md5

[RouterA-ipsec-transform-set-def] quit

# 创建IPsec安全策略模板branch1

[RouterA] ipsec policy-template branch1 1

[RouterA-ipsec-policy-template-branch1-1] ike-peer branch1

[RouterA-ipsec-policy-template-branch1-1] proposal def

[RouterA-ipsec-policy-template-branch1-1] quit

# 引用IPsec安全策略模板创建一条IPsec安全策略。

[RouterA] ipsec policy branch 1 isakmp template branch1

# 创建IPsec安全策略模板branch2

[RouterA] ipsec policy-template branch2 1

[RouterA-ipsec-policy-template-branch2-1] ike-peer branch2

[RouterA-ipsec-policy-template-branch2-1] proposal def

[RouterA-ipsec-policy-template-branch2-1] quit

# 引用IPsec安全策略模板创建一条IPsec安全策略。

[RouterA] ipsec policy branch 2 isakmp template branch2

# 在接口Ethernet0/0上应用安全策略。

[RouterA] interface ethernet 0/0

[RouterA-Ethernet0/0] ipsec policy branch

[RouterA-Ethernet0/0] quit

3.5.2  Rouer B的配置

# 配置接口Ethernet0/1的IP地址。

<RouterB> system-view

[RouterB] interface ethernet 0/1

[RouterB-Ethernet0/1] ip address 10.0.1.1 255.255.255.0

[RouterB-Ethernet0/1] quit

# 配置接口Ethernet0/0的IP地址。

[RouterB] interface ethernet 0/0

[RouterB-Ethernet0/0] ip address 1.0.0.1 255.255.255.0

[RouterB-Ethernet0/0] quit

# 创建NAT转换地址池。

[RouterB] nat address-group 0 11.0.0.1 11.0.0.10

# 创建ACL2000,定义需要NAT转换的数据流。

[RouterB] acl number 2000

[RouterB-acl-basic-2000] rule 0 permit source 10.0.1.0 0.0.0.255

[RouterB-acl-basic-2000] quit

# 在接口下配置访问控制列表和地址池关联。

[RouterB] interface ethernet 0/0

[RouterB-Ethernet0/0] nat outbound 2000 address-group 0

[RouterB-Ethernet0/0] quit

3.5.3  Rouer C的配置

# 配置接口Ethernet0/0的IP地址。

<RouterC> system-view

[RouterC] interface ethernet 0/0

[RouterC-Ethernet0/0] ip address 1.0.0.2 255.255.255.0

[RouterC-Ethernet0/0] quit

# 配置接口Ethernet0/1的IP地址。

[RouterC] interface ethernet 0/1

[RouterC-Ethernet0/1] ip address 10.0.2.1 255.255.255.0

[RouterC-Ethernet0/1] quit

# 创建NAT转换地址池。

[RouterC] nat address-group 0 12.0.0.1 12.0.0.10

# 创建ACL2000,定义需要NAT转换的数据流。

 [RouterC] acl number 2000

[RouterC-acl-basic-2000] rule 0 permit source 10.0.2.0 0.0.0.255

[RouterC-acl-basic-2000] quit

# 在接口下配置访问控制列表和地址池关联。

[RouterC] interface ethernet 0/0

[RouterC-Ethernet0/0] nat outbound 2000 address-group 0

[RouterC-Ethernet0/0] quit

3.5.4  Rouer D的配置

# 配置接口Ethernet0/0的IP地址。

<RouterD> system-view

[RouterD] interface ethernet 0/0

[RouterD-Ethernet0/0] ip address 10.0.1.2 255.255.255.0

[RouterD-Ethernet0/0] quit

# 配置接口Ethernet0/1的IP地址。

[RouterD] interface ethernet 0/1

[RouterD-Ethernet0/1] ip address 192.168.1.1 255.255.255.0

[RouterD-Ethernet0/1] quit

# 配置访问外网的默认路由。

[RouterD] ip route-static 0.0.0.0 0.0.0.0 10.0.1.1

# 创建ACL3000,定义需要IPsec保护的数据流。

 [RouterD] acl number 3000

[RouterD-acl-adv-3000] rule 0 permit ip source 192.168.1.0 0.0.0.255 destination

 172.0.0.0 0.0.0.255

[RouterD-acl-adv-3000] quit

# 配置本端安全网关的名字为branch1。

[RouterD] ike local-name branch1

# 创建一个IKE对等体,并进入IKE-Peer视图。

[RouterD] ike peer center

# 配置IKE第一阶段的协商模式为野蛮模式。

[RouterD-ike-peer-center] exchange-mode aggressive

# 配置预共享密钥。

[RouterD-ike-peer-center] pre-shared-key 123

# 选择IKE第一阶段的协商过程中使用ID的类型为name。

[RouterD-ike-peer-center] id-type name

# 配置对端安全网关的名字。

[RouterD-ike-peer-center] remote-name center

# 配置远端地址为总部网关的出接口地址。

[RouterD-ike-peer-center] remote-address 1.0.0.60

# 启用NAT穿越功能。

[RouterD-ike-peer-center] nat traversal

[RouterD-ike-peer-center] quit

# 采用安全提议的缺省配置。

[RouterD] ipsec proposal def

# 配置ESP协议采用md5认证算法。

[RouterD-ipsec-transform-set-def] esp authentication-algorithm md5

[RouterD-ipsec-transform-set-def] quit

# 创建IPsec安全策略center,其协商方式为isakmp

[RouterD] ipsec policy center 1 isakmp

[RouterD-ipsec-policy-isakmp-center-1] security acl 3000

[RouterD-ipsec-policy-isakmp-center-1] ike-peer center

[RouterD-ipsec-policy-isakmp-center-1] proposal def

[RouterD-ipsec-policy-isakmp-center-1] quit

# 在接口Ethernet0/0上应用安全策略。

[RouterD] interface ethernet 0/0

[RouterD-Ethernet0/0] ipsec policy center

[RouterD-Ethernet0/0] quit

3.5.5  Rouer E的配置

# 配置接口Ethernet0/0的IP地址。

<RouterE> system-view

[RouterE] interface ethernet 0/0

[RouterE-Ethernet0/0] ip address 10.0.2.2 255.255.255.0

[RouterE-Ethernet0/0] quit

# 配置接口Ethernet0/1的IP地址。

[RouterE] interface ethernet 0/1

[RouterE-Ethernet0/1] ip address 192.168.2.1 255.255.255.0

[RouterE-Ethernet0/1] quit

# 配置访问外网的默认路由。

[RouterE] ip route-static 0.0.0.0 0.0.0.0 10.0.2.1

# 创建ACL3000,定义需要IPsec保护的数据流。

[RouterE] acl number 3000

[RouterE-acl-adv-3000] rule 0 permit ip source 192.168.2.0 0.0.0.255 destination

 172.0.0.0 0.0.0.255

[RouterE-acl-adv-3000] quit

# 配置本端安全网关的名字为branch2。

[RouterE] ike local-name branch2

# 创建一个IKE对等体,并进入IKE-Peer视图。

[RouterE] ike peer center

# 配置IKE第一阶段的协商模式为野蛮模式。

[RouterE-ike-peer-center] exchange-mode aggressive

# 配置预共享密钥。

[RouterE-ike-peer-center] pre-shared-key 123

# 选择IKE第一阶段的协商过程中使用ID的类型为name。

[RouterE-ike-peer-center] id-type name

# 配置对端安全网关的名字。

[RouterE-ike-peer-center] remote-name center

# 配置远端地址为总部网关的出接口地址。

[RouterE-ike-peer-center] remote-address 1.0.0.60

# 启用NAT穿越功能。

[RouterE-ike-peer-center] nat traversal

[RouterE-ike-peer-center] quit

# 采用安全提议的缺省配置。

[RouterE] ipsec proposal def

# 配置ESP协议采用md5认证算法。

[RouterE-ipsec-transform-set-def] esp authentication-algorithm md5

[RouterE-ipsec-transform-set-def] quit

# 创建IPsec安全策略center,其协商方式为isakmp

[RouterE] ipsec policy center 1 isakmp

[RouterE-ipsec-policy-isakmp-center-1] security acl 3000

[RouterE-ipsec-policy-isakmp-center-1] ike-peer center

[RouterE-ipsec-policy-isakmp-center-1] proposal def

[RouterE-ipsec-policy-isakmp-center-1] quit

# 在接口Ethernet0/0上应用安全策略。

[RouterE] interface ethernet 0/0

[RouterE-Ethernet0/0] ipsec policy center

[RouterE-Ethernet0/0] quit

3.6  验证配置

完成以上配置后,Router A和Router D、Router E可分别实现互通,且数据经IPsec进行加密,并不受NAT影响。这里以Router A与Router D为例进行验证。

# 可以通过如下显示信息看到,Router A和Router D实现互通。

<RouterD> ping -a 192.168.1.1 172.0.0.1

  PING 172.0.0.1: 56  data bytes, press CTRL_C to break

    Request time out

    Reply from 172.0.0.1: bytes=56 Sequence=1 ttl=255 time=3 ms

    Reply from 172.0.0.1: bytes=56 Sequence=2 ttl=255 time=2 ms

    Reply from 172.0.0.1: bytes=56 Sequence=3 ttl=255 time=3 ms

    Reply from 172.0.0.1: bytes=56 Sequence=4 ttl=255 time=3 ms

 

  --- 172.0.0.1 ping statistics ---

    5 packet(s) transmitted

    4 packet(s) received

    20.00% packet loss

round-trip min/avg/max = 2/2/3 ms

# 可以通过如下显示信息看到,IKE协商成功,生成了两个阶段的SA。

<RouterD> display ike sa

    total phase-1 SAs:  1

    connection-id  peer                    flag        phase   doi

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

     1             1.0.0.60                RD|ST       1       IPSEC

     2             1.0.0.60                RD|ST       2       IPSEC

 

  flag meaning

  RD--READY ST--STAYALIVE RL--REPLACED FD--FADING TO--TIMEOUT RK--REKEY

# 可以通过如下显示信息查看协商生成的IPsec SA

<RouterD> display ipsec sa

===============================

Interface: GigabitEthernet0/0

    path MTU: 1500

===============================

 

  -----------------------------

  IPsec policy name: "center"

  sequence number: 1

  acl version: ACL4

  mode: isakmp

  -----------------------------

    PFS: N, DH group: none

    tunnel:

        local  address: 10.0.1.2

        remote address: 1.0.0.60

    flow:

        sour addr: 192.168.1.0/255.255.255.0  port: 0  protocol: IP

        dest addr: 172.0.0.0/255.255.255.0  port: 0  protocol: IP

 

    [inbound ESP SAs]

      spi: 0xA5933FB9(2777890745)

      transform: ESP-ENCRYPT-NULL ESP-AUTH-MD5

      in use setting: Tunnel

      connection id: 1

      sa duration (kilobytes/sec): 1843200/3600

      sa remaining duration (kilobytes/sec): 1843199/3525

      anti-replay detection: Enabled

        anti-replay window size(counter based): 32

      udp encapsulation used for nat traversal: Y

 

    [outbound ESP SAs]

      spi: 0x30FA0BC7(821693383)

      transform: ESP-ENCRYPT-NULL ESP-AUTH-MD5

      in use setting: Tunnel

      connection id: 2

      sa duration (kilobytes/sec): 1843200/3600

      sa remaining duration (kilobytes/sec): 1843199/3525

      anti-replay detection: Enabled

        anti-replay window size(counter based): 32

      udp encapsulation used for nat traversal: Y

3.7  配置文件

·     Router A:

#

 ike local-name center

#

ike peer branch1

 exchange-mode aggressive

 pre-shared-key cipher $c$3$usDE48gmYI36TbftpJ3+YOBgFaff2w==

 id-type name

 remote-name branch1

 nat traversal

#

ike peer branch2

 exchange-mode aggressive

 pre-shared-key cipher $c$3$vrfgGzDJE8PBS25Mr/tQT7mqCRvraA==

 id-type name

 remote-name branch2

 nat traversal

#

ipsec transform-set def

 encapsulation-mode tunnel

 transform esp

 esp authentication-algorithm md5

#

ipsec policy-template branch1 1

 ike-peer branch1

 transform-set def

#

ipsec policy-template branch2 1

 ike-peer branch2

 transform-set def

#

ipsec policy branch 1 isakmp template branch1

#

ipsec policy branch 2 isakmp template branch2

#

interface Ethernet0/1

 port link-mode route

ip address 172.0.0.1 255.255.255.0

#

interface Ethernet0/0

 port link-mode route

 ip address 1.0.0.60 255.255.255.0

 ipsec policy branch

#

ip route-static 11.0.0.0 255.0.0.0 1.0.0.1

 ip route-static 12.0.0.0 255.0.0.0 1.0.0.2

 ip route-static 192.168.1.0 255.255.255.0 1.0.0.1

 ip route-static 192.168.2.0 255.255.255.0 1.0.0.2

#

·     Router B:

#

 nat address-group 0 11.0.0.1 11.0.0.10

#

acl number 2000

 rule 0 permit source 10.0.1.0 0.0.0.255

#

interface Ethernet0/1

 port link-mode route

 ip address 10.0.1.1 255.255.255.0

#

interface Ethernet0/0

 port link-mode route

 nat outbound 2000 address-group 0

 ip address 1.0.0.1 255.255.255.0

#

·     Router C:

#

nat address-group 0 12.0.0.1 12.0.0.10

#

acl number 2000

 rule 0 permit source 10.0.2.0 0.0.0.255

#

interface Ethernet0/0

 port link-mode route

nat outbound 2000 address-group 0

 ip address 1.0.0.2 255.255.255.0

#

interface Ethernet0/1

 port link-mode route

ip address 10.0.2.1 255.255.255.0

#

·     Router D:

#

 ike local-name branch1

#

acl number 3000

 rule 0 permit ip source 192.168.1.0 0.0.0.255 destination 172.0.0.0 0.0.0.255

#

ike peer center

 exchange-mode aggressive

 pre-shared-key cipher $c$3$9ffLIFKA7XqYlM1C5+uvwqH+UJcOEQ==

 id-type name

 remote-name center

 remote-address 1.0.0.60

 nat traversal

#

ipsec transform-set def

 encapsulation-mode tunnel

 transform esp

 esp authentication-algorithm md5

#

ipsec policy center 1 isakmp

 security acl 3000

 ike-peer center

 transform-set def

#

interface Ethernet0/0

 port link-mode route

ip address 10.0.1.2 255.255.255.0

 ipsec policy center

#

interface Ethernet0/1

 port link-mode route

 ip address 192.168.1.1 255.255.255.0

#

ip route-static 0.0.0.0 0.0.0.0 10.0.1.1

#

·     Router E:

#

 ike local-name branch2

#

acl number 3000

 rule 0 permit ip source 192.168.2.0 0.0.0.255 destination 172.0.0.0 0.0.0.255

#

ike peer center

 exchange-mode aggressive

 pre-shared-key cipher $c$3$9ffLIFKA7XqYlM1C5+uvwqH+UJcOEQ==

 id-type name

 remote-name center

 remote-address 1.0.0.60

 nat traversal

#

ipsec transform-set def

 encapsulation-mode tunnel

 transform esp

 esp authentication-algorithm md5

#

ipsec policy center 1 isakmp

 security acl 3000

 ike-peer center

 transform-set def

#

interface Ethernet0/0

 port link-mode route

ip address 10.0.2.2 255.255.255.0

 ipsec policy center

#

interface Ethernet0/1

 port link-mode route

 ip address 192.168.2.1 255.255.255.0

#

ip route-static 0.0.0.0 0.0.0.0 10.0.2.1

#

4  相关资料

·     H3C MSR 系列路由器 命令参考(V5)-R2311

·     H3C MSR 系列路由器 配置指导(V5)-R2311

不同款型规格的资料略有差异, 详细信息请向具体销售和400咨询。H3C保留在没有任何通知或提示的情况下对资料内容进行修改的权利!