静态NAT

学习目标：

明天复习路由

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学习内容：

1.NAT

学习时间：

• 周一至周五晚上 7 点—晚上9点

学习产出：

拓扑图：
LAN:
Router>en
Router#conf t
Router(config)#hostname LAN
LAN(config)#int g0/0
LAN(config-if)#ip add 192.168.1.254 255.255.255.0
LAN(config-if)#no shut
%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

LAN(config-if)#int s0/0/0
LAN(config-if)#ip add 20.1.8.1 255.255.255.0
LAN(config-if)#no shut

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to down

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
LAN(config-if)#exi
LAN(config)#ip route 0.0.0.0 0.0.0.0 s0/0/0 （默认路由ISP也要打）
LAN(config)#ip nat inside source static 192.168.1.35 20.1.8.9 (方法1)
LAN(config)#ip nat inside source static tcp 192.168.1.35 80 20.1.8.9 80 (方法2)
LAN(config)#int g0/0
LAN(config-if)#ip nat inside
LAN(config-if)#exi
LAN(config)#int s0/0/0
LAN(config-if)#ip nat outside
LAN(config-if)#end
LAN#
%SYS-5-CONFIG_I: Configured from console by console
write
Building configuration…
[OK]
ISP:
Router>en
Router#conf t
Router(config)#hostname ISP
ISP(config)#int s0/0/0
ISP(config-if)#clock rate 64000
This command applies only to DCE interfaces
ISP(config-if)#clock rate 64000
ISP(config-if)#ip add 20.1.8.2 255.255.255.0
ISP(config-if)#no shut

%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up

ISP(config-if)#int g0/0
ISP(config-if)#ip add 117.1.1.254 255.255.255.0
ISP(config-if)#no shut

%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

ISP(config-if)#
ISP(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console
write
Building configuration…
[OK]
ISP#conf t
ISP(config)#ip route 0.0.0.0 0.0.0.0 s0/0/0 (默认路由)
任务验收：
LAN:


PC1：

Server0：

PC1：