VLAN Subnet Architecture: Re-configuring Home Network
In this article, we will discuss the key concepts related to re-configuring a home network with a focus on VLAN subnet architecture. We will cover the basics of networks, subnets, and VLANs, and provide detailed explanations of each concept. The article will also include subtitles, paragraphs, and code blocks to help illustrate the concepts discussed.
Networks
A network is a collection of interconnected devices that can communicate with each other. These devices can include computers, servers, switches, routers, and other network-enabled devices. Networks can be classified into two main categories: Local Area Networks (LANs) and Wide Area Networks (WANs).
A LAN is a network that covers a small geographical area, such as a home, office, or building. A WAN, on the other hand, covers a larger geographical area, such as a city, state, or country. The Internet is the most well-known example of a WAN. In this article, we will focus on LANs, specifically home networks.
Subnets
A subnet is a smaller network that is created within a larger network. Subnets are used to divide a large network into smaller, more manageable segments. This allows for better network performance, security, and administration. Subnets are created by dividing a network's IP address range into smaller ranges. Each subnet is assigned a unique IP address range, which is used to identify devices on that subnet.
For example, if a network has an IP address range of 192.168.1.1 to 192.168.1.254, a subnet can be created by dividing this range into two smaller ranges: 192.168.1.1 to 192.168.1.126 and 192.168.1.127 to 192.168.1.254. The first range can be assigned to one subnet, and the second range can be assigned to another subnet. Each subnet can then be further divided into smaller subnets if needed.
VLANs
A Virtual Local Area Network (VLAN) is a logical network that is created within a physical network. VLANs are used to group devices together based on specific criteria, such as department, function, or location. This allows for better network security and management, as devices in different VLANs cannot communicate with each other unless explicitly allowed.
For example, a home network can have multiple VLANs, such as a VLAN for IoT devices, a VLAN for computers, and a VLAN for servers. Each VLAN can have its own IP address range, subnet, and security policies. This allows for better control over network resources and improved security.
Re-configuring Home Network
Re-configuring a home network to use VLAN subnet architecture involves several steps. First, the network's IP address range must be divided into smaller subnets. Each subnet can then be assigned to a different VLAN. Devices can then be added to the appropriate VLAN based on their function or location.
For example, a home network can have a subnet for IoT devices, a subnet for computers, and a subnet for servers. Each subnet can then be assigned to a different VLAN. Devices can then be added to the appropriate VLAN based on their function or location. For example, IoT devices can be added to the IoT VLAN, computers can be added to the computer VLAN, and servers can be added to the server VLAN.
# Example VLAN configuration
vlan 10
name IoT
exit
vlan 20
name Computers
exit
vlan 30
name Servers
exit
# Example subnet configuration
subnet 192.168.1.0 255.255.255.0
network 192.168.1.0
mask 255.255.255.0
exit
subnet 192.168.2.0 255.255.255.0
network 192.168.2.0
mask 255.255.255.0
exit
subnet 192.168.3.0 255.255.255.0
network 192.168.3.0
mask 255.255.255.0
exit
# Example VLAN-to-subnet mapping
vlan 10
ip address 192.168.1.1 255.255.255.0
exit
vlan 20
ip address 192.168.2.1 255.255.255.0
exit
vlan 30
ip address 192.168.3.1 255.255.255.0
exit
- A network is a collection of interconnected devices that can communicate with each other.
- A subnet is a smaller network that is created within a larger network.
- A VLAN is a logical network that is created within a physical network.
- Re-configuring a home network to use VLAN subnet architecture involves dividing the network's IP address range into smaller subnets and assigning each subnet to a different VLAN.
References
- Cisco. (n.d.). Virtual LAN (VLAN) Overview. https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/vlan.html
- Microsoft. (n.d.). Create a subnet. https://docs.microsoft.com/en-us/windows-server/networking/technologies/network-subnetting/create-a-subnet
- Techopedia. (n.d.). Virtual LAN (VLAN). https://www.techopedia.com/definition/27295/virtual-lan-vlan