The following command is used to view the contents of a Cisco router's routing table.

Router#show ip route - View the contents of the routing table

The following command is used to view routing protocol information on a Cisco router.

Router#show ip protocols - View routing protocol information on the router

The following command is used to assign an IP address and subnet mask to a router interface.

Router(config-if)#ip address 13.0.0.1 255.0.0.0 - Assign an IP address and subnet mask to an interface

The following command is used bring up an interface and make it active.

Router(config-if)#no shutdown - Bring up the interface

The following command is used to configure a clock rate on a DCE router interface.

Router(config-if)#clock rate 64000 - Configure a clock rate on a DCE interface

The following command is used to configure the serial 0 interface of a Cisco router.

Router(config)#interface s0 - Configure the serial 0 interface

The following command is used to change the hostname of a Cisco router or switch.

Router(config)#hostname NewYork - Change the system's network name to NewYork

The following commands are used to enter global configuration mode on Cisco routers or Switches.

Router#config terminal - Enter global configuration mode to make configuration changes

The following command to save the running configuration to the startup configuration.

Router#copy running-config startup-config - Save the running configuration to the startup
configuration

The following commands are used to show the startup and running configurations on a router.

Router#show startup-config - Displays the startup configuration
Router#show running-config - Displays the running configuration