To create an interface, enter interface followed by the type of interface you want to create.
ADDITIONAL INFORMATION:
Some types of interfaces require an identifier as a parameter. Other types of interfaces require the interface’s module and port number as a parameter.
For example:
interface vlan 1 interface serial 3/1 interface fastethernet 10/2
Enter ip address, followed by an IP address and subnet mask, to assign an IP address to the interface.
ADDITIONAL INFORMATION:
Use the no form of this command to delete the IP interface.