IPV6 CHAPTER 2 - IPV6 ADDRESS FORMAT

Will Focus on :-

• Hexadecimal Number System
• Understanding IPV6 Address Structure
• Splitting IPV6 addresses  
• IPV6 – CIDR Representation.

Hexadecimal Number System

IPV6 addresses are 128 bits addresses.

IPv6 addresses are written using hexadecimal.

Before learning IPv6 Address Format.

Let’s First Understand Hexadecimal Number System .

HEXADECIMAL NUMBER SYSTEM

IPV6 ADDRESS FORMAT

IPV6 is I28 bits address. 

Divided into 8 blocks . 

Each block having 16 bits .

Each block is represented in 4 digit Hexadecimal number.

Each block is separated by colon 

                                                                                              

IPV6 ADDRESS FORMAT

Example :-

0010000000000001 0000000000000000 0000000000000000 0000000000000000 0000011000010100 0000000000000000 0000000000000000 1011110110000000

Splitting IPV6 Addresses

The 128 bits IPV6 address is split into two 64 bits segments the top 64 bits is the network part and the lower 64 bits the host part.

Host part is automatically calculated by the host itself.

eg. 

2001:0000:0000:0000:0614:0000:0000:BD80

CIDR Notation

2001:0000:0000:0000:0614:0000:0000:BD80 /64

64 => Network Prefix Length

Represents the number bits used for Network .

                                                                                              

Thanks for Reading !!!!