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CLASSES OF IP

ADDRESSING

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CONTENTS1. Network layer.

2. Elements of communication

3. What is ip address and its need

4. Ip address types

5. History

6. Structure of ip address

7. Public and private ips

8. Classes

9. Ip Address distribution

10. IPV6

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NETWORK LAYER NETWORK LAYER IS THE 3RD LAYER OF OSI REFERANCE MODEL.IT IS RESPONSIBLE FOR SOURCE TO DESTINATION DELIVERY OF A PACKET ACROSS MULTIPLE NETWORKS.

Let us understand the ROLE of network layer

A

Link X

B

Link Y

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ELEMENTS OF COMMUNICATION

- - - - - - - - - - -

SOURCE DESTINATION

MESSAGE

LETS GET STARTED!

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WHAT IS AN IP ADDRESS AND ITS NEED ?

SOURCE

DESTINATION

In order to identify each device on internet uniquely , network layer defines an addressing scheme.An IP address is a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.

In short!It’s a unique address of each device on internet

IDENTIFICATION

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TYPES OF IP ADDRESS .

CLASS FULL

(IPV4)

CLASSLESS (IPV6)

32 BIT ADDRESS.

CLASS ACLASS BCLASS C CLASS DCLASS E

128 BIT ADDRESS.

THERE IS NO CONCEPT OF CLASSES.

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HISTORYWe all know that there are two types of internet protocol (ipv4 and ipv6).

Before that there was just a standard in which the first octet was reserved for network bit and others for host.

IPV4

Was introduced by JON POSTEL on 1 january 1983 In oct 1998

United States Department of Commerce ("DoC") and Network Solutions, Inc. ("NSI")  formed a singular global address regulating authority

In DEC 19 1988 IANA(INTERENT ASSIGNED NUMBER AUTHORITY) was published by JON POSTEL

In 1999 the development of ipv6 began

IPV6

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STRUCTURE OF AN IP ADDRESS .

Octets

Let us know about the concept of public and

private ips!

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PUBLIC AND PRIVATE IP.Every computer has 2 IP address one public and one private .public

private

And my fav. Just GOOGLE search it

Now lets move

on to the classes

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CLASSES

CLASSES

DEAFULT MASK RANGES (publicL)

PRIVATE

CLASS A1 TO 126

10.0.0.1 TO 10.255.255.254

CLASS B128 TO 191

172.16.0.1 TO 172.31.255.254

CLASS C192 TO 223

192.168.0.1 TO 192.168.255.254

CLASS D

Don’t have concept of HOST and NETWORK.There 1st 4 bits of first octet are always (1110).

224 TO 239 N/A

CLASS E Don’t have concept of HOST and NETWORK.There 1st 4 bits of first octet are always (1111).

240 TO 255 N/A

With each and every class there is a associated range when we talk about range we talk about first octet

N

H HHN

HH

HNN

N

N

How do we

actually get Ip’s.?

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HOW IP ADDRESSES ARE REGULATED ?

ISP’s

RIR’s (regional internet registry)

It’s a hierarchal system.

We the consumers

Subpart of bigger organization (ICANN)

INTERNET CO-OPERATION FOR ASSIGNED NAMES AND NUMBERS

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WHAT IF WE RUN OUT OF IP ADDRESSES ?

This resulted in the

introduction of

a new classless address

scheme IPV6

ISP’s

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IPv6 addresses are 128-bit hexadecimal numbers.

2^128 addresses

IPV6 (OVERVIEW)

3.4×1038 (340 undecillion) 

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THANKYOU FOR ATTENDING THIS SEMINAR I HOPE THIS WAS HELPFUL . I’LL BE VERY HAPPY TO ANSWER ANY QUERY'S YOU HAVE RELATED TO THIS TOPIC.