Change to Config Mode Router# configure terminal

Enter Interface Mode Router (config)# interface g0/0

interface f0/0

interface s0/0/0

Set ip address to interface R1 (config-if)# ip address 10.0.0.1 255.255.255.0

Set interface description R1 (config-if)# description Gigabit 0/0 Interface

Turn on Interface R1 (config-if)# no shutdown

All Cisco Routers and Switches

The command below is from a router, the type of interface must match the physical interface on the device

Prefix

g – GigabitEthernet

f – FastEthernet

s - Serial

Basic Router NIC Settings