Static

Static Routing

R1 Configuration:                             
R1(config)#ip route 0.0.0.0 0.0.0.0 12.0.0.2

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R2 Configuration:
R2(config)#ip route 11.11.11.0 255.255.255.0 12.0.0.1
R2(config)#ip route 33.33.33.0 255.255.255.0 23.0.0.3
R2(config)#ip route 34.0.0.0 255.255.255.0 23.0.0.3
R2(config)#ip route 44.44.44.0 255.255.255.0 23.0.0.3

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R3 Configuration:
R3(config)#ip route 11.11.11.0 255.255.255.0 23.0.0.2
R3(config)#ip route 12.0.0.0 255.255.255.0 23.0.0.2
R3(config)#ip route 22.22.22.0 255.255.255.0 23.0.0.2
R3(config)#ip route 44.44.44.0 255.255.255.0 34.0.0.4

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R4 Configuration:
R4(config)#ip route 0.0.0.0 0.0.0.0 34.0.0.3