Introduction
When I first heard about IP address and subnet, I felt it is very difficult. But after learning slowly, I understood it is actually simple. In this blog, I will explain in a very basic way.
What is IP Address?
IP address is like an ID for every device on internet.
Just like every student has a register number, every device has an IP address.
Example:
192.168.1.1
So when we send data, it will go to the correct device using this IP address.
Types of IP Address
IPv4
- Most used
- Simple format
- Example: 192.168.0.1
IPv6
- New type
- Longer address
- Created because IPv4 is limited
What is Subnet?
Subnet means small part of a network.
Big network divided into small networks = subnet
What is Subnetting?
Subnetting means dividing one big network into smaller parts.
At first I thought it is very tough, but actually it is just splitting.
Why we need Subnetting?
- Easy to manage network
- Better speed
- More security
- No waste of IP addresses
Simple Understanding
Imagine a big classroom:
- One teacher handling 100 students difficult
Now divide into:
- 4 groups with 25 students easy
This is exactly subnetting
Subnet Mask
Subnet mask tells which part is network and which part is device.
Example:
IP: 192.168.1.10
Mask: 255.255.255.0
You don’t need to worry much now, just remember it helps in dividing.
Public vs Private IP
Public IP
- Used in internet
- Given by ISP
Private IP
- Used inside home or college
- Example: 192.168.x.x
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