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How to Configure Default Routing between 3 Router In Cisco Packet Tracer

Default routes are used to direct packets addressed to networks not explicitly listed in the routing table. Default routes are invaluable in topologies where learning all the more specific networks is not desirable, as in case of stub networks, or not feasible due to limited system resources such as memory and processing power.





Defaults Routing-----------



1st router command



Continue with configuration dialog? [yes/no]: n



Press RETURN to get started!


Router>enable 

Router#configure terminal 

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip address 10.10.10.1 255.0.0.0

Router(config-if)#no shutdown 

Router(config-if)#exit 

Router(config)#interface serial 0/0

Router(config-if)#ip address 1.1.1.1 255.0.0.0

Router(config-if)#no shutdown 

Router(config-if)#clock rate 64000

Router(config-if)#exit 



2nd router command 



Continue with configuration dialog? [yes/no]: n



Press RETURN to get started!


Router>enable 

Router#configure terminal 

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip address 172.24.10.1 255.255.0.0

Router(config-if)#no shutdown 

Router(config-if)#exit 

Router(config)#interface serial 0/0

Router(config-if)#ip address 1.1.1.2 255.0.0.0

Router(config-if)#no shutdown 

Router(config-if)#exit 

Router(config)#interface serial 0/1

Router(config-if)#ip address 200.200.200.1 255.255.255.0

Router(config-if)#no shutdown 

Router(config-if)#clock rate 64000

Router(config-if)#no shutdown 

Router(config-if)#exit



3rd router command



Continue with configuration dialog? [yes/no]: n



Press RETURN to get started!


Router>enable 

Router#configure terminal 

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip address 192.168.10.1 255.255.255.0

Router(config-if)#no shutdown 

Router(config-if)#exit 

Router(config)#interface serial 0/0

Router(config-if)#ip address 200.200.200.2 255.255.255.0

Router(config-if)#no shutdown 

Router(config-if)#exit 




Defaults Routing 



R0 -  Router(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0



R1 -  Router(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0

         Router(config)#ip route 0.0.0.0 0.0.0.0 serial 0/1


R2 -  Router(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0







YouTube Link : 


How to Configure Default Routing between 3 Router











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