Learn Cisco Packet Tracer
(c)# interface fastEthernet <port>
(c)# ip address <ip_address> <subnet_mask>
(c)# interface range fastEthernet <port>
(c)# ip address <ip_address> <subnet_mask>
(c)# no shutdown
(c)# no sh
(c)# shutdown
(c)# sh
# show ip interface brief