How to Configure IP Unicast Routing The following sections provide configuration information about IP unicast routing. Enabling IP Unicast Routing By default, the device is in Layer 2 switching mode and IP routing is disabled. To use the Layer 3 capabilities of the device, you must enable IP routing. Procedure Configuring IP Unicast Routing How to Configure IP Unicast Routing Command or Action Purpose Device(config)#end Step 6 show running-config Example: Device#show running-config Verifies your entries. Step 7 copy running-config startup-config Example: Device#copy running-config startup-config (Optional) Saves your entries in the configuration file.
Command or Action Purpose Step 1 enable Example: Device>enable Enables privileged EXEC mode. Enter your password if prompted. Step 2 configure terminal Example: Device#configure terminal Enters global configuration mode. Step 3 ip routing Example: Device(config)#ip routing Enables IP routing. Configuring IP Unicast Routing 28