IPv4 vs IPv6 – Difference Explained with Table


 

Introduction  

IP address is a unique address used to identify devices on a network. There are two versions of IP addresses: IPv4 and IPv6. This article explains the differences between IPv4 and IPv6 in a simple and exam-oriented way.


What is IPv4?  

IPv4 stands for Internet Protocol Version 4. It uses a 32-bit address and is written in decimal format separated by dots.


Example of IPv4 address:  

192.168.1.1


What is IPv6?  

IPv6 stands for Internet Protocol Version 6. It uses a 128-bit address and is written in hexadecimal format separated by colons.


Example of IPv6 address:  

2001:0db8:85a3:0000:0000:8a2e:0370:7334


Differences between IPv4 and IPv6  


IPv4:

- Uses 32-bit address

- Address format is decimal

- Limited number of IP addresses

- Uses NAT to save addresses

- Less secure


IPv6:

- Uses 128-bit address

- Address format is hexadecimal

- Very large number of IP addresses

- No need for NAT

- More secure with built-in encryption


Advantages of IPv6  

- Solves IP address shortage  

- Faster packet processing  

- Better security  

- Supports modern internet devices  


Conclusion  

IPv4 is still widely used, but IPv6 is the future of the internet. Due to address limitations in IPv4, IPv6 is gradually replacing it.


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