R1配置
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R7配置
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host R1
int f0/0
ip add 192.168.0.2 255.255.255.0
no shut
ip route 0.0.0.0 0.0.0.0 192.168.0.1
//用路由器来模拟PC所以要加默认路由
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host R7
int f0/0
ip add 192.168.0.3 255.255.255.0
no shut
ip route 0.0.0.0 0.0.0.0 192.168.0.1
//用路由器来模拟PC所以要加默认路由
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R2配置
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ISP配置
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host R2
int f0/0
ip add 192.168.0.1 255.255.255.0
ip route 0.0.0.0 0.0.0.0 202.99.224.10
int s1/1
ip add 202.99.224.9 255.255.255.252
clock rate 56000
no shut
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host ISP
int l0 //用loopback地址来模拟外网
ip add 202.99.223.1 255.255.255.0
int s1/0
ip add 202.99.224.10 255.255.255.252
no shut
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ip nat inside
int s1/1
ip nat outside
