VPN实例配置方案－中文注解

Router:sam-i-am(VPN Server)

Current configuration:
!
version 12.2
service timestamps debug uptime
service timestamps log up time
no service password-encryption
!
hostname sam-i-am
!
ip subnet-zero

!--- IKE配置

sam-i-am(config)#crypto isakmp policy 1 //定义策略为1
sam-i-am(isakmp)#hash md5 //定义MD5散列算法
sam-i-am(isakmp)#authentication pre-share //定义为预共享密钥认证方式
sam-i-am(config)#crypto isakmp key cisco123 address 0.0.0.0 0.0.0.0

!--- 配置预共享密钥为cisco123,对等端为所有IP

!--- IPSec协议配置

sam-i-am(config)#crypto ipsec transform-set rtpset esp-des esp-md5-hmac

!--- 创建变换集 esp-des esp-md5-hmac

sam-i-am(config)#crypto dynamic-map rtpmap 10 //创建动态保密图rtpmap 10
san-i-am(crypto-map)#set transform-set rtpset //使用上面的定义的变换集rtpset
san-i-am(crypto-map)#match address 115 //援引访问列表确定受保护的流量
sam-i-am(config)#crypto map rtptrans 10 ipsec-isakmp dynamic rtpmap

!--- 将动态保密图集加入到正规的图集中

!
interface Ethernet0
ip address 10.2.2.3 255.255.255.0
no ip directed-broadcast
ip nat inside

no mop enabled
!
interface Serial0
ip address 99.99.99.1 255.255.255.0
no ip directed-broadcast
ip nat outside
crypto map rtptrans //将保密映射应用到S0接口上

!
ip nat inside source route-map nonat interface Serial0 overload
!--- 这个NAT配置启用了路由策略，内容为10.2.2.0到10.1.1.0的访问不进行地址翻译
!--- 到其他网络的访问都翻译成SO接口的IP地址

ip classless
ip route 0.0.0.0 0.0.0.0 Serial0 //配置静态路由协议
no ip http server
!
access-list 115 permit ip 10.2.2.0 0.0.0.255 10.1.1.0 0.0.0.255
access-list 115 deny ip 10.2.2.0 0.0.0.255 any
!
access-list 120 deny ip 10.2.2.0 0.0.0.255 10.1.1.0 0.0.0.255
access-list 120 permit ip 10.2.2.0 0.0.0.255 any
!
sam-i-am(config)#route-map nonat permit 10 //使用路由策略
sam-i-am(router-map)#match ip address 120
!
line con 0
transport input none
line aux 0
line vty 0 4
password ww
login
!
end



Router:dr_whoovie(VPN Client)


Current configuration:
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname dr_whoovie
!
ip subnet-zero
!
dr_whoovie(config)#crypto isakmp policy 1 //定义策略为1
dr_whoovie(isakmp)#hash md5 //定义MD5散列算法
dr_whoovie(isakmp)#authentication pre-share //定义为预共享密钥认证方式
dr_whoovie(config)#crypto isakmp key cisco123 address 99.99.99.1

!--- 配置预共享密钥为cisco123,对等端为服务器端IP99.99.99.1

!--- IPSec协议配置

dr_whoovie(config)#crypto ipsec transform-set rtpset esp-des esp-md5-hmac

!--- 创建变换集 esp-des esp-md5-hmac

dr_whoovie(config)#crypto map rtp 1 ipsec-isakmp

!--- 使用IKE创建保密图rtp 1

dr_whoovie(crypto-map)#set peer 99.99.99.1 //确定远程对等端
dr_whoovie(crypto-map)#set transform-set rtpset //使用上面的定义的变换集rtpset
dr_whoovie(crypto-map)#match address 115 //援引访问列表确定受保护的流量

!
interface Ethernet0
ip address 10.1.1.1 255.255.255.0
no ip directed-broadcast
ip nat inside

no mop enabled
!
interface Serial0
ip address negotiated //IP地址自动获取
no ip directed-broadcast
ip nat outside
encapsulation ppp //S0接口封装ppp协议
no ip mroute-cache
no ip route-cache
crypto map rtp //将保密映射应用到S0接口上

!
ip nat inside source route-map nonat interface Serial0 overload
!--- 这个NAT配置启用了路由策略，内容为10.1.1.0到10.2.2.0的访问不进行地址翻译
!--- 到其他网络的访问都翻译成SO接口的IP地址

ip classless
ip route 0.0.0.0 0.0.0.0 Serial0 //配置静态路由协议
no ip http server

!
access-list 115 permit ip 10.1.1.0 0.0.0.255 10.2.2.0 0.0.0.255
access-list 115 deny ip 10.1.1.0 0.0.0.255 any

access-list 120 deny ip 10.1.1.0 0.0.0.255 10.2.2.0 0.0.0.255
access-list 120 permit ip 10.1.1.0 0.0.0.255 any

!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
route-map nonat permit 10 //使用路由策略
match ip address 120
!
line con 0
transport input none
line aux 0
line vty 0 4
password ww
login
!
end

screen.width-255) {this.width=screen.width-255;this.alt='本图片已被缩小，点击查看原大小图片。';}" border=0>

 

阅读前一章：单口NAT的超级详细通俗的解释

阅读后一章：网络专业人士笔记