What is a subnet mask and why is it needed?
And what do IP addresses have to do with it?
Analysis
January 22, 2025
Share
What is a subnet mask and why is it needed?
Content
1.
What is IP addressing
2.
How IP works
3.
What is a subnet
4.
How to determine a subnet by IP address
5.
Why do you need a subnet mask?
6.
How to choose a subnet mask
7.
Subnet masks in IPv6
8.
The main thing about the subnet mask
Anastasia Cheshegorova
Anastasia Cheshegorova
Skillfactory author, journalist, editor, copywriter
When you share a funny picture with a friend, your computer needs to know where to send it. The IP address helps it do this, as does the subnet mask. Let's figure out how it works.
9 months
System administrator
Become a Linux Generalist from Scratch
3 560 ₽/month
5 933 ₽/month
Read more
cables_2 2-PhotoRoom 1 (3)
What is IP addressing
IP is an Internet Protocol . It contains information about the uae telegram data location of computers on the network. Thanks to this, the right recipient will receive your message and it will not get lost along the way.
Every device has an IP address, and it is always unique. It is almost like a house address, thanks to which others can find you and communicate with you.
To find out your IP:
Open your computer settings (Win + I).