Inter Vlan Configuration

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Intervlan

1. Intervlan is used for to create virtual network in two different ip network.
2. In intervlan ise dot1q protocol.
3. dot1q protocol is create the sub interface and divide the virtual local area network.


Diagram



Basic Configuraation:-

Go to first router

Router>en
Router#conf t
Router(config)#int s0/0
Router(config-if)#ip ad
Router(config-if)#ip address 192.168.30.1 255.255.255.0
Router(config-if)#no shut
Router(config-if)#cl rate 64000
Router(config-if)#exit

Router(config)#int f0/0
Router(config-if)#no shut
Router(config-if)#exit

Now create sub-network

Router(config)#int f0/0.1
Router(config-subif)#encapsulation dot1Q 1
Router(config-subif)#ip address 192.168.10.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Router(config)#int f0/0.2
Router(config-subif)#encapsulation dot1Q 10
Router(config-subif)#ip address 192.168.6.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Router(config)#int f0/0.3
Router(config-subif)#encapsulation dot1Q 30
Router(config-subif)#ip address 192.168.5.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Go to second router

Router>en
Router#conf t
Router(config)#int s0/0
Router(config-if)#ip address 192.168.30.2 255.255.255.0
Router(config-if)#no shut

Router(config)#int f0/0
Router(config-if)#no shut
Router(config-if)#exit

Now create sub-network

Router(config)#int f0/0.1
Router(config-subif)#encapsulation dot1Q 1
Router(config-subif)#ip address 192.168.20.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Router(config)#int f0/0.2
Router(config-subif)#encapsulation dot1Q 10
Router(config-subif)#ip address 192.168.6.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Router(config)#int f0/0.3
Router(config-subif)#encapsulation dot1Q 20
Router(config-subif)#ip address 192.168.5.1 255.255.255.0
Router(config-subif)#no shut
Router(config-subif)#exit

Now Switching 

go to router first switch

Switch>en

Switch#conf t
Switch(config)#vlan 10
Switch(config-vlan)#name abc
Switch(config-vlan)#exit


Switch(config)#vlan 20
Switch(config-vlan)#name xyz
Switch(config-vlan)#exit

Switch(config)#int f0/2
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#exit

Switch(config)#int f0/3
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#exit

Switch(config-if)#int f0/4
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#exit

Switch(config)#int f0/5
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#exit

go to seconf router switch

Same as above switch 
           or

Switch>en

Switch#conf t
Switch(config)#vlan 10
Switch(config-vlan)#name abc
Switch(config-vlan)#exit


Switch(config)#vlan 20
Switch(config-vlan)#name xyz
Switch(config-vlan)#exit

Switch(config)#int f0/2
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#exit

Switch(config)#int f0/3
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 10
Switch(config-if)#exit

Switch(config-if)#int f0/4
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#exit

Switch(config)#int f0/5
Switch(config-if)#switchport mode access
Switch(config-if)#switchport access vlan 20
Switch(config-if)#exit


Now routing with rip

Go to first router
Router(config)#router rip
Router(config-router)#network 192.168.10.0
Router(config-router)#network 192.168.30.0

Router(config-router)#network 192.168.5.0

Router(config-router)#network 192.168.6.0

Go to Second router
Router(config)#router rip
Router(config-router)#network 192.168.20.0
Router(config-router)#network 192.168.30.0

Router(config-router)#network 192.168.5.0

Router(config-router)#network 192.168.6.0

Now give ip to all pc's according to above diagram


Testing

Send packet from all pc. vlan 10 not send able to send packet to vlan 20 in both network so it's fail.
and also vlan 20 pc's not send packet to vlan 10 pc's so it also fail
only same vlan's send packet to each other and they are successfull.
as shown in the figure.

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