Inter Vlan Routing

Whenever hosts in one vlan need to communicate with hosts in another vlan the traffic must be routed between them.

Inter vlan routing. The router you are using for inter vlan routing must be compatible and support inter switch link isl which is a cisco systems proprietary protocol and ieee 8021q frame format for routing on the fast ethernet interfaces. As we learnt previously vlans logically segment the switch into different subnets when a router is connected to the switch an administrator can configure the router to forward the traffic between the various vlans configured on the switch. Intervlan routing makes use of the latest in technology switches ensuring a super fast reliable and acceptable cost routing solution. Dont stop learning now.

This means that any traffic from vlan 10 to vlan 20 for example will go to the router be routed from the fe0010 interface to the fe0020 interface be sent back to the switch and to the appropriate device on vlan 20. Since you need one ethernet interface on your router to connect to each vlan this option is not really scalable and rarely used today. Vlan routing solution no4. Three options are available for routing between vlans.

Inter vlan routing inter vlan routing is the process of forwarding network traffic from one vlan to another vlan using a router. My config involves intervlan routing which is routing from one vlan to another within the layer 3 switch itself. Whenever hosts in one vlan need to communicate with hosts in another vlan the traffic must be routed between them. Inter vlan routing can be defined as a way to forward traffic between different vlan by implementing a router in the network.

This document provides the configuration and troubleshooting steps applicable to the creation of layer 3 interfaces. Vlans divide broadcast domains in a lan environment. Vlans divide broadcast domains in a lan environment. Inter vlan routing 1.

In router on a stick method both switch and router are needed but while using layer 3 switch a single switch will perform inter vlan routing as well as the layer 2 functions vlan therefore this method is cost effective and also less configuration is needed. This is without a doubt the best vlan routing solution out of all of the above. Use a router with one router lan interface connected to the switch for each vlan.