R1(config)#router rip

R1(config-router)#network 192.168.0.0 R1(config-router)#network 192.168.1.0 R1(config-router)#network 192.168.10.0 ------------------------------------------------------ R2(config)#router rip R2(config-router)#network 192.168.0.0 R2(config-router)#network 192.168.2.0 R2(config-router)#network 192.168.20.0 ------------------------------------------------------ R3(config)#router rip R3(config-router)#network 192.168.1.0 R3(config-router)#network 192.168.2.0 R3(config-router)#network 192.168.3.0 R3(config-router)#network 192.168.30.0 ------------------------------------------------------ R4(config)#router rip R4(config-router)#network 192.168.3.0 R4(config-router)#network 192.168.40.0