What is legacy Inter-VLAN routing?

Legacy inter-VLAN routing In this method, multiple router interfaces are used, each connecting to a switch port in different VLANs. These interfaces are served as default gateways, which requires additional cabling when the network has to be expanded.

How do I configure legacy Inter-VLAN routing?

To configure legacy inter-VLAN routing starts by configuring the switch. As shown in the figure, the Router is connected to switch ports Fa0/2 and Fa0/7, which have been configured for VLANs 100 and 200, accordingly. Use the following command to create VLAN and assign ports to that VLAN.

What is an advantage of using legacy Inter-VLAN routing?

The network switches mainly work at layer 2 of the OSI model, so they do not examine the logical addresses. Therefore for traffic between VLAN inter-VLAN routing is required. The Legacy Inter-VLAN routing is the first solution for traffic between different VLAN.

How do I enable inter-VLAN routing on my router?

1. Step 1: Create VLANs (VLANs 10 and 20) on the L2 switch. Description.
2. Step 2: Assign the VLANs to the L2 switch ports.
3. Step 3: Enable L3 routing and create VLANs (VLANs 10 and 20) on the L3 switch.
4. Step 4: Configure Switch VLAN Interfaces (SVI)
5. Step 5: Configure a routed port for connecting to the firewall on the L3 switch.

Why do we need Intervlan routing?

VLANs divide broadcast domains in a LAN environment. Whenever hosts in one VLAN need to communicate with hosts in another VLAN, the traffic must be routed between them. This is known as inter-VLAN routing. On Catalyst switches it is accomplished by the creation of Layer 3 interfaces (switch virtual interfaces (SVIs) ).

What are the different types of VLANs?

There are 5 main types of VLANs depending on the type of the network they carry:

• Default VLAN –
• Data VLAN –
• Voice VLAN –
• Management VLAN –
• Native VLAN –

What is router on a stick inter-VLAN routing?

“Router-on-a-stick” is a type of router configuration in which you are able to use a single physical interface to route traffic between multiple VLANs. The router interface is configured as a trunk link and is connected to a trunk switch port. The switch will handle the Inter-VLAN routing decisions too.

How do I find my inter-VLAN routing?

Step-by-Step Instructions

1. Enable routing on the switch with the ip routing command.
2. Make note of the VLANs that you want to route between.
3. Use the show vlan command in order to verify that the VLANs exist in the VLAN database.
4. Determine the IP addresses you want to assign to the VLAN interface on the switch.

Is VLAN a Layer 2?

VLANs are data link layer (OSI layer 2) constructs, analogous to Internet Protocol (IP) subnets, which are network layer (OSI layer 3) constructs.

What are three advantages of VLANs?

VLANs provide a number of advantages, such as ease of administration, confinement of broadcast domains, reduced broadcast traffic, and enforcement of security policies.

Why use a router on a stick?

Advantages. Networks that utilise router on a stick benefit from only requiring one LAN connection to be used for multiple VLANs, i.e. the number of VLANs are not limited by the number of LAN ports available. Separation of network connections do not respond to the physical location of the ports on the router.