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Cisco IOS Router on a Stick

Network Topology

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Router0 Configuration Commands

Router0>enable
Router0#configure terminal
Router0(config)#interface fastEthernet 0/0
Router0(config-if)#no shutdown
Router0(config-if)#interface fastEthernet 0/0.10
Router0(config-subif)#encapsulation dot1q 10
Router0(config-subif)#ip address 192.168.10.1 255.255.255.0
Router0(config-if)#interface fastEthernet 0/0.20
Router0(config-subif)#encapsulation dot1q 20
Router0(config-subif)#ip address 192.168.20.1 255.255.255.0
Router0(config-if)#interface fastEthernet 0/0.30
Router0(config-subif)#encapsulation dot1q 30
Router0(config-subif)#ip address 192.168.30.1 255.255.255.0
Router0(config-subif)#end
Router0#show ip interface brief

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Router0#show interfaces

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Switch0 Configuration Commands

Switch0>enable
Switch0#configure terminal
Switch0(config)#interface fastEthernet 0/1
Switch0(config-if)#switchport mode trunk
Switch0(config-if)#interface fastEthernet 0/2
Switch0(config-if)#switchport access vlan 10
Switch0(config-if)#interface fastEthernet 0/3
Switch0(config-if)#switchport access vlan 20
Switch0(config-if)#interface fastEthernet 0/4
Switch0(config-if)#switchport access vlan 30
Switch0(config-if)#end
Switch0#show vlan brief

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Switch0#show interfaces status

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Configure the Three PCs

PC0

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PC1

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PC2

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Test with Ping and Tracert

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Cisco Packet Tracer File

net12 router on a stick.pkt