拓撲圖
靜態nat轉換
Router(config-if)#ip address 192.168.100.254 255.255.255.0 Router(config-if)#no shutdown Router(config-if)#exit Router(config-if)#ip address 61.159.62.1 255.255.255.0 Router(config-if)#no shutdown Router(config-if)#exit Router(config)#ip nat inside source static 192.168.100.1 61.159.62.130 Router(config)#ip nat inside source static 192.168.100.2 61.159.62.131 Router(config)#int e0/0 Router(config-if)#ip nat inside Router(config)#int e0/1 Router(config-if)#ip nat outside Router(config-if)#do show ip nat tran Pro Inside global Inside local Outside local Outside global --- 61.159.62.130 192.168.100.1 --- --- --- 61.159.62.131 192.168.100.2 --- --
動態NAT轉換
Router(config)#int e0/0 Router(config-if)#ip address 192.168.100.254 255.255.255.0 Router(config-if)#no shutdown Router(config-if)#int e0/1 Router(config-if)#ip address 61.159.62.1 255.255.255.0 Router(config-if)#no shutdown Router(config-if)#exit Router(config)#access-list 1 permit 192.168.100.0 0.0.0.255 Router(config)#ip nat pool test 61.159.62.130 61.159.62.190 netmask 255.255.255.0 Router(config)#ip nat inside source list 1 pool test Router(config)#int e0/0 Router(config-if)#ip nat inside Router(config-if)#exi Router(config)#int e0/1 Router(config-if)#ip nat outside
PAT轉換
Router(config)#access-list 1 permit 192.168.100.0 0.0.0.255 [
Router(config)#ip nat pool test 61.159.62.130 61.159.62.130 netmask 255.255.255.0 Router(config)#ip nat inside source list 1 pool test overload
] 或 [
Router(config)#ip nat inside source list 1 interface ethernet 0/1 overload
] Router(config)#int e0/0 Router(config-if)#ip nat inside Router(config-if)#exi Router(config)#int e0/1 Router(config-if)#ip nat outside
最終三種配置可以讓內網訪問外網，現在常用的配置為PAT配置
