Configuring Inter-vlan routing

Dot1q encapsulation

Switch configuration

Router(config) interface range f0/0 - 6
Router(config) swichport mode access
Router(config) switchport access vlan 100
Router(config) interface range f0/7 - 14
Router(config) swichport mode access
Router(config) switchport access vlan 200
Router(config) interface range f0/14 - 21
Router(config) swichport mode access
Router(config) switchport access vlan 300

Router configuration

Router(config) interface g0/0.100
Router(config) encapsulation dot1q 100
Router(config) ip address 192.168.1.1 255.255.255.0
Router(config) interface g0/0.200
Router(config) encapsulation dot1q 200
Router(config) ip address 192.168.2.1 255.255.255.0
Router(config) interface g0/0.300
Router(config) encapsulation dot1q 300
Router(config) ip address 192.168.3.1 255.255.255.0