cisco NAT 的配置例子

答案：
version 12.0 
service timestamps debug uptime 
service timestamps log uptime 
no service password-encryption 
! 
hostname nat-r1 
! 
enable secret 5 $1$FEQr$INhRecYBeCb.UqTQ3b9mY0 
! 
ip subnet-zero 
! 
 ! 
 ! 
 ! 
 inte易做图ce Ethernet0 
 ip address 172.18.150.150 255.255.0.0 
 no ip directed-broadcast 
 ip nat inside            /* 定义此为网络的内部端口 */ 
! 
inte易做图ce Serial0 
 ip address 192.1.1.161 255.255.255.252 
 no ip directed-broadcast 
 ip nat outside    /*  定义此为网络的外部端口 */ 
 
 no ip mroute-cache 
 no fair-queue 
! 
inte易做图ce Serial1 
 no ip address 
 no ip directed-broadcast 
 shutdown 
!        /* 定义从ISP那里申请到的IP在企业内部的分配策阅 */ 
ip nat pool tech 192.1.1.100 192.1.1.120 netmask 255.255.255.0 
ip nat pool deve 192.1.1.121 192.1.1.150 netmask 255.255.255.0 
ip nat pool manager 192.1.1.180 192.1.1.200 netmask 255.255.255.0 
ip nat pool soft-1 192.1.1.170 192.1.1.179 netmask 255.255.255.0 
ip nat pool soft-2 192.1.1.151 192.1.1.159 netmask 255.255.255.0 
ip nat pool temp-user 192.1.1.160 192.1.1.160 netmask 255.255.255.0 
        /* 将访问列表与地址池对应，以下为动态地址转换*/ 
ip nat inside source list 1 pool tech 
ip nat inside source list 2 pool deve 
ip nat inside source list 3 pool manager 
ip nat inside source list 4 pool soft-1 
ip nat inside source list 5 pool soft-2 
             /*   将访问列表与地址池对应，以下为复用动态地址转换*/ 
ip nat inside source list 6 pool temp-user overload 
             /*   将访问列表与地址池对应，以下为静态地址转换*/      
ip nat inside source static 172.18.100.168 192.1.1.168 
ip nat inside source static 172.18.100.169 192.1.1.169 
ip classless  
ip route 0.0.0.0 0.0.0.0 Serial0       /* 设置一个缺省路由 */ 
!            /* 内部网访问地址表，他指出内部网络能访问外部网的地址段， 
分别定义是为了对应 
                     不同的地址池  */ 
access-list 1 permit 172.18.107.0 0.0.0.255 
access-list 2 permit 172.18.101.0 0.0.0.255 
access-list 3 permit 172.18.108.0 0.0.0.255 
access-list 4 permit 172.18.103.0 0.0.0.255 
access-list 4 permit 172.18.102.0 0.0.0.255 
access-list 4 permit 172.18.104.0 0.0.0.255 
access-list 5 permit 172.18.105.0 0.0.0.255 
access-list 5 permit 172.18.106.0 0.0.0.255 
access-list 6 permit 172.18.111.0 0.0.0.255 
! 
line con 0 
 transport input none 
line 1 16 
line aux 0 
line vty 0 4 
 login 
! 
end 

上一个：The Bat!防止重复接收邮件
下一个：改变缺省的邮件关联软件