How to assign IP address on Router/Switch/ASA

Some basic configuration for Router/Switch/ASA:

Assign IP Address:

Router>enable

Router#configure terminal

Router(config)#interface fastEthernet 0/0   >> Same as Serial Interface

Router(config-if)#ip address 172.16.100.1 255.255.255.0   >> IP Address

Router(config-if)#no shutdown   >> By default shutdown all interface so, you need to UP interface.

                               

Assign IP Address in Router/Switch:

Router#configure terminal

Router(config)#interface vlan 1  >> Create interface as your requirement (vlan 2, vlan 3)

Router(config-if)#ip address 172.16.200.2 255.255.255.0  >> as your requirement

Router(config-if)#no shutdown