ip address

Sets the address and subnet mask of an interface.

ip address <address> <mask>
 
no ip address [<address> <mask>]
 

• address--IP address of the interface, in dotted decimal format (a.b.c.d)
• mask--subnetwork mask for the interface, in dotted decimal format (a.b.c.d)

Must be in interface configuration (config-if) mode, which requires privileged-level access.

Once per interface.