IP Addressing with class and ranges and types

 

Q1: Introduction to IP Addressing (IPV4)

Q2: IP Classes and their Ranges with example

Q3: Public and Private IP address with example

 

 

 

IP Addressing:

                                IPv4 address is the 1^st type of IP address which is an unique address generated by the router to identify the network. It is 32 bit long address with four 8 bit fields. Bad thing about this ipv4 is this that it can only generate about 4 billion unique addresses which would be less in future so, therefore to fulfill this requirement ipv6 were introduced which is 64 bit long address. Also IP address has two parts one is network and other is host.

 

IP Classes and their Ranges:

Class	1st Octave	Network Host	Subnet	Hosts per Network
A	1-----------126	N.H.H.H	255.0.0.0	2^24------2^32
B	128--------191	N.N.H.H	255.255.0.0	2^16------2^23
C	192--------233	N.H.H.H	255.255.255.0	2^0-------2^15
D	224--------239	RESERVED	FOR	MULTICASTING
E	240--------254	EXPERIMENTAL	USED FOR	RESEARCH

 

For example IP address for class A is 1.1.1.1 as the same way IP address for class C is 198.168.1.1. In this way this IP addresses uses but class D and E are only reserved for the Research and multicasting.

Public and private IP addresses:

                                                                IP address is the globally unique IP address provided by ISP to our network also there is a private IP address which is locally unique IP address furthermore we cannot access the internet by using private IP address also there are some ranges from class A, B and C which is only reserved for private IP addresses and the range is here

Class	Private IP address
A	10.0.0.0------------------10.255.255.255
B	172.16.0.0---------------172.31.255.255
C	192.168.0.0--------------192.168.255.255

Now the whole story is here that our pc contains private IP addresses and our internet service provider contains public IP addresses so if we want to access the goggle then request from our local network send to ISP and then ISP provides us a public IP address to access the Google so in this way we access the internet.