Cisco switch: 802.1q trunk to router (router-on-a-stick)

Switch Config:

vlan 100

name data

state active

vlan 200

name data

state active

interface fastethernet 1/0/1

switchport trunk encapsulation dot1q

switchport mode trunk

Router Config:

interface fastethernet 0/0

no ip address

interface fastethernet 0/0.1

encapsulation dot1q 1 native (native vlan on switch is vlan 1)

interface fastethernet 0/0.100

encapsulation dot1q 100

ip address 192.168.100.1 255.255.255.0

interface fastethernet 0/0.200

encapsulation dot1q 200

ip address 192.168.200.1 255.255.255.0