Topological structure
Configure all code on the Router1
Router>enable
Router#conf
Router (config) #int f0/0
Router (config-if) #ip address 192.168.0.1 255.255.255.0
Router (config-if) #no shutdown
Router (config-if) #int s2/0
Router (config-if) #ip address 192.168.1.1 255.255.255.0
Router (config-if) #no shutdown
Router (config-if) #exit
Router (config) #ip Route 192.168.2.0 255.255.255.0 192.168.1.2
Router (config) #ip Route 192.168.3.0 255.255.255.0 192.168.1.2
Router (config) #
All the configuration code on the Router2
Router>enable
Router#conf
Router (config) #int s2/0
Router (config-if) #ip address 192.168.1.2 255.255.255.0
Router (config-if) #clock rate 128000
Router (config-if) #no shutdown
Router (config-if) #int s3/0
Router (config-if) #ip address 192.168.2.1 255.255.255.0
Router (config-if) #no shutdown
Router (config-if) #exit
Router (config) #ip Route 192.168.0.0 255.255.255.0 192.168.1.1
Router (config) #ip Route 192.168.3.0 255.255.255.0 192.168.2.2
All the configuration code on the Router3
Router>enable
Router#conf
Router (config) #int s3/0
Router (config-if) #ip address 192.168.2.2 255.255.255.0
Router (config-if) #clock rate 128000
Router (config-if) #no shutdown
Router (config-if) #int f0/0
Router (config-if) #ip address 192.168.3.1 255.255.255.0
Router (config-if) #no shutdown
Router (config-if) #exit
Router (config) #ip Route 192.168.0.0 255.255.255.0 192.168.2.1
Router (config) #ip Route 192.168.1.0 255.255.255.0 192.168.2.1
Router (config) #exit
router#
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