Configure and verify inter-VLAN routing (router on a stick).
Because Layer 2 switches cannot perform the routing function, it is necessary to implement a Layer 3 device to route between VLANs. Today, we review inter-VLAN routing concepts and configurations.
Inter-VLAN communications cannot occur without a Layer 3 device. There are three options for implementing inter-VLAN routing:
Traditional or legacy inter-VLAN routing