WHAT IS SUBNETTING?

Subnetting is the process of dividing a larger network into smaller, more manageable segments, each identified by its own unique range of IP addresses. This practice enhances organization, efficiency, and security within a network.

Real-time example to understand easy.

Imagine a Town with Street Addresses:

1. Town's Original Street:

   - The town has one big street, and every house has an address like 100, 101, 102, etc.

   - Original street range: 100 to 199.

2. Subnetting into Smaller Blocks:

   - Now, to make things more organized, the town decides to create smaller blocks.

   - Each block has a range of 10 addresses.

3. New Blocks:

   - Block 1: Addresses 100 to 109

   - Block 2: Addresses 110 to 119

   - Block 3: Addresses 120 to 129

   - ...

4. Each Block Represents a Subnet:

   - In networking terms, each block is like a subnet. It has its own range of addresses.

5. Benefits:

   - Organization: It's easier to find houses in smaller blocks.

   - Efficiency: Instead of having one long street, people can access their houses more quickly in their designated block.

In Networking Terms:

- Original Town Range: 192.168.1.0 to 192.168.1.255

- Subnet Mask: 255.255.255.0 or /24

- Subnet 1: 192.168.1.0 to 192.168.1.9

- Subnet 2: 192.168.1.10 to 192.168.1.19

- Subnet 3: 192.168.1.20 to 192.168.1.29

- ...

Benefits in Networking:

- Organization: Devices in each subnet are easier to manage.

- Efficiency: Smaller subnets mean less unnecessary traffic.

Just like houses on a street, devices on a subnet can communicate easily within their block. Subnetting helps manage and organize IP addresses more effectively in a network.