Routing

Routing

Open console of router by default you are in user mode

Router>

Write command enable to enter privilege mode
Router>enable                                
Router#    

Write command configure terminal to enter global config mode
Router#configure terminal
Router(config)#

All the configuration are done in  global config mode

Show IP routing table of router

Go to  privilege mode
Router#

Enter command->show ip route
Router#show ip route

Configuring Router Statically

Go to  global config mode
Router(config)#

Enter command->ip route networkID subnetMask  nextHopIP, here networkID is the ID of network that is not directly attach to the router and  subnetMask is the subnet mask of
networkID. Next hop is the IP of the interface which receive the packet belongs to subnet
networkID.
Router(config)#ip route 172.31.132.0 255.255.255.0 172.31.144.2

Removing routing entries

Go to  global config mode
Router(config)#

Enter command->no ip route networkID subnetMask  nextHopIP
Router#show ip route 172.31.132.0 255.255.255.0 172.31.144.2

Configuring Router Dynamically

Go to  global config mode
Router(config)#
 
Enter command->router rip to enter in to router config mode 
Router(config)#router rip

Enter command->network networkID, here networkID is network ID of directly connected sub networks.
Router(config-router)#network 10.0.1.0

Enter command ->end to come out to privilege mode 
Router(config-router)#end

Enter command ->write
Router#write