VLAN

1. Inter-Vlan

1.1. 1. Router-on-a-Stick

1.1.1. Router(config)#interface fa 0/1

1.1.2. Router(config-if)#no shutdown

1.1.3. Router(config)#interface fa 0/1.1

1.1.4. Router(config-subif)#encapsulation dot1q 1 native

1.1.5. Router(config-subif)#description Management VLAN 1

1.1.6. Router(config-subif)#ip address 192.168.1.1 255.255.255.0

1.1.7. Router(config)#interface fa 0/1.2

1.1.8. Router(config-subif)#encapsulation dot1q 100

1.1.9. Router(config-subif)#ip address 192.168.2.1 255.255.255.0

1.2. 2. SVI - Switch L3

1.2.1. Enable Routing

1.2.1.1. Switch3750(Config)# ip routing

1.2.2. Create SVI (Switch Virtual Interface) with the IP address

1.2.2.1. Switch3750(Config)# interface vlan 1

1.2.2.2. Switch3750(Config-if)# ip address 192.168.1.1 255.255.255.0

1.2.2.3. Switch3750(Config-if)#no shutdown

1.2.2.4. Switch3750(Config)#interface vlan 10

1.2.2.5. Switch3750(Config-if)#ip address 192.168.2.1 255.255.255.0

1.2.2.6. Switch3750(Config-if)#no shutdown

1.2.2.7. Switch3750(Config)#interface vlan 20

1.2.2.8. Switch3750(Config-if)#ip address 192.168.3.1 255.255.255.0

1.2.2.9. Switch3750(Config-if)#no shutdown

1.2.3. Configure the interface to the default router

1.2.3.1. Switch3750(Config)# interferface fa 0/1

1.2.3.2. Switch3750(Config-if)#no switchport

1.2.3.3. Switch3750(config-if)#ip address 200.1.1.1 255.255.255.0

1.2.3.4. Switch3750(config-if)#no shutdown

1.2.4. Configure the default route for the switch

1.2.4.1. Switch(config)#ip route 0.0.0.0 0.0.0.0 200.1.1.2

2. VTP VLAN Trunking Protocol

2.1. Switch(config)#vtp mode client

2.2. Switch(config)#vtp mode server

2.3. Switch(config)#vtp mode transparent

2.4. Switch(config)#no vtp mode

2.5. Switch(config)#vtp domain Cisco

2.6. Switch(config)#vtp password password

2.7. Switch(config)#vtp version 2

2.8. Switch(config)#vtp pruning

3. Trunk VLAN Encapsulation

3.1. Switch3750(Config)#interface fa 0/1

3.2. Switch3750(Config-if)# switchport mode trunk

3.3. Switch3750(Config-if)# switchport encapsulation dot1q

3.4. Switch3750(Config-if)# switchport encapsulation isl

3.5. Switch3750(Config-if)# switchport encapsulation negotiate

4. DTP Dynamic Trunking Protocol

4.1. Switch3750(Config)#interface fa 0/1

4.2. Switch3750(Config-if)#switchport mode dynamic auto

4.3. Switch3750(Config-if)#switchport mode dynamic desirable

4.4. Switch3750(Config-if)#switchport mode trunk

4.5. Switch3750(Config-if)#switchport nonegotiate

5. Assigning ports to VLAN

5.1. Switch3750(Config)#interface fa 0/1 - 10

5.2. Switch3750(Config-if)#switchport mode access

5.3. Switch3750(Config-if)#switchport access vlan 10

6. Create and Save VLAN

6.1. Switch3750(Config)#vlan 10

6.2. Switch3750(Config-Vlan)#name Sales

6.3. Switch3750(Config)#vlan 20

6.4. Switch3750(Config-Vlan)#name Accounting

6.5. Switch3750(Config-Vlan)#exit

6.6. Switch3750(Config)#

7. Verifying VLAN

7.1. Switch#show vlna

7.2. Switch#show vlan brief

7.3. Switch#show vlan id 2

7.4. Switch#show vlan name Sales

7.5. Switch#show interface vlan 10

7.6. Switch#show interface switchport

7.7. Switch#show interfaces fa 0/1 switchport

8. Erase VLAN

8.1. Switch# delete flash: vlan.dat

8.2. Switch3750(Config)#no vlan 10

9. Disable/Enable VLAN

9.1. Switch3750(Config-Vlan)#shutdown

9.2. Switch3750(Config-Vlan)#no shutdown