What is Inter Vlan Routing ?

Inter vlan routing is used to communicate between different Vlans. As you think from name inter vlan routing a Router is use to  communicate this network.
 As in below image. A router is directly connected to switch. That port of which on which Switch is connected that is configured as trunk port.A trunk port is that port which pass the information of all vlans from this port.

Way of communication :-
  1. Suppose a PC from Vlan 100 want to communicate with Vlan 200 PC.
  2. That first send the information to its connected port of switch.
  3. After that Switch broadcast the request.
  4. That infomation go to Router.(Router is used to communicate between 2 different network.)
  5. Then Router forward the request to Switch that is trunk port.
  6. Then again Switch function to broadcast the request.
  7. After that request is forwarded to that port of Switch of Vlan 200 PC.
  8. This is our inter VLAN Routing Communication.



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