NAT 6

PAT 配置示例
Router>en
            Router#config
            Configuring from terminal, memory, or network [terminal]?
            Enter configuration commands, one per line.   End with CNTL/Z.
            Router(config)#int ser1
            Router(config-if)#exit
            Router(config)#no ip domain-lo
            Router(config)#line c 0
            Router(config-line)#logg syn
            Router(config-line)#exec-t 0 0
            Router(config-line)#exit
            Router(config)#int ser1
            Router(config-if)#ip add 100.0.0.1 255.255.255.0
            Router(config-if)#ip nat outside
            Router(config-if)#ip access-group 1 out
            Router(config-if)#no shut
            Router(config-if)#exit
            Router(config)#int e0
            Router(config-if)#ip add 192.168.1.1 255.255.255.0
            Router(config-if)#ip nat inside
            Router(config-if)#no shut
            Router(config-if)#exit
            Router(config)#ip nat inside source list 1 pool ds1 overload
(其中ip nat inside source list X pool xx overload为关键字)
            Router(config)#access-list 1 permit 192.168.0.1 255.255.0.0   
(设置访问列表,允许内部的网络转换出去,网段自由设顶)
            Router(config)#ip nat pool ds1 100.0.0.1 100.0.0.2 netmask 255.255.255.0
(这里的IP为能在公网上使用的IP,这里设置了2IP,可以为几个,
如果后面设置为10005,那么这里就有5个公网IP,一般2个就够了)
            Router(config)#exit
 

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