来进行翻译规则控制

Router1#configure terminal
Enter configuration commands, one per line.End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 172.16.1.5255.255.255.252
Router(config-if)#ip nat outside
Router(config-if)#exit
Router(config)#interface FastEthernet0/1
Router(config-if)#ip address 172.16.2.5255.255.255.252
Router(config-if)#ip nat outside
Router(config-if)#exit
Router(config)#interface FastEthernet0/2
Router(config-if)#ip address 192.168.1.1255.255.255.0
Router(config-if)#ip nat inside
Router(config-if)#exit
Router(config)#ip nat inside sourceroute-map ISP-1 interface FastEthernet0/0 overload
Router(config)#ip nat inside sourceroute-map ISP-2 interface FastEthernet0/1 overload
Router(config)#route-map ISP-1 permit 10
Router(config-route-map)#match interfaceFastEthernet0/0
Router(config-route-map)#exit
Router(config)#route-map ISP-2 permit 10
Router(config-route-map)#match interfaceFastEthernet0/1
Router(config-route-map)#exit
Router(config)#end
Router#

注释适用于多个outside端口的情况