INTER$-$VLAN ROUIING

VLANS essentially are isolated from each oticer so that packets in one VLAN cannot cross into another VLAN.

To iransport packels between VLANs, you must use a Layer $3$ device. Traditionally, this has been a router's function. The router must have a plysicai or logical connection to each VLAN so that it can forward packets between them. This is known as

inter$-$VI$.$AN routing.

inter$-$VLAN muting can be perforned ly nn external rouler that connects to cach of the VI ANs on a sieitcit. Separate physicai comnections an be wsed, of the router can actess ench of the VI$.$ANs through a singie truak link

Examples of

Inter$-$VI$.$AN Routing Connections

Router

VLANs $1,2,3$

"Router on a Stick"