Introduction to IPv6 for AFCAT 2022
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Complete Video at β Introduction to IPv6: Addressing Modes & Format of IPV6 (Computer Science)
Topics
- Introduction to IPv6
- Address Format
- Addressing Modes
- Unicast Addressing Mode
- Multicast Addressing Mode
- Anycast Addressing Mode
Complete notes and preparation module at doorsteptutor. com
Introduction to IPv6
- As IPv4 address space was limited , so IPv6 was developed to solve this problem of address space exhaustion.
- IPv6 (Internet Protocol version 6) is the latest version of Internet protocol.
- It was developed by Internet Engineering Task Force (IETF) .
- It was developed mainly to deal with the problem of IPv4 exhaustion.
Address Format of IPV6
- IPv6 address is of 128 bits, which is divided into 8 groups.
- Each group consists of 16 bits and separated by colon (:) .
- Each group is represented by 4 bit hexadecimal number.
- Example:
Address Format of IPV6 Contd
The Ipv6 Address is Divided into Two Parts
The Network Component is Further Divided As
Addressing Modes
- IPv6 supports 3 types of addressing modes:
- Unicast addressing mode
- Multicast addressing mode
- Anycast addressing mode
Unicast Addressing Mode
- In this, IPv6 host is uniquely identified in network segment.
- When router receives unicast IP packet , it sends out to interface that is connected to that particular host
Multicast Addressing Mode
- In this, all the hosts which are interested in multicast information are joined to multicast group first .
- Multicast packet is received by all the hosts which are joined by multicast group.
Anycast Addressing Mode
- itΥs a new addressing mode introduced by IPv6.
- In this , multiple hosts are assigned same anycast IP addresses.
- When a host wants to communicate to host with anycast IP address, it sends unicast message.
- The unicast message is delivered to host closest to the sender.
MCQ
Q1. IPv6 does not use ________ type of address.
Options:
A. Unicast
B. Broadcast
C. Multicast
D. None of the above
Answer: B
Q2. The size of IP address in IPv6 is:
Options:
A. 4 bytes
B. 128 bytes
C. 8 bytes
D. 100 bytes
Answer: B
- We learnt about:
# Introduction IPv6
# Address Format
#Addressing Modes
#Unicast Mode
#Multicast Mode
# Anycast Mode
β Mayank