IPv4 Addressing-Part-I

1. Subnetting (IP4)

 

Subnetting is only making systems inside a system. Subnetting permits an association with a solitary IP address (Class A/ClassB/ClassC) to have numerous subnetworks, in this manner permitting a few physical systems within the association.

Addresses are composed utilizing decimal numbers isolated by decimal focuses. This is called spotted decimal documentation of communicating IP addresses.

The diverse classes of IP addresses are as underneath:

 

System address of each of the zeros signifies “This system or fragment.

System address of every one of the 1s signifies “all systems”, same as hexadecimal of all Fs.

System number 127 is saved for loopback tests.

Host (Node) address of every one of the zeros signifies “This Host (Node)”.

Host (Node) address of each of the 1s signify “all Hosts (Nodes) ” on the predetermined system.

1. The location run and the comparing paired qualities for the primary octet of IP classes are as given underneath:

 

Class A

 

0. 0. 0. 0 = 00000000.00000000.00000000.00000000

127.255.255.255 = 01111111.11111111.11111111.11111111

0nnnnnnn.HHHHHHHH.HHHHHHHH.HHHHHHHH

 

Class B

 

128. 0. 0. 0 = 10000000.00000000.00000000.00000000

191.255.255.255 = 10111111.11111111.11111111.11111111

10nnnnnn.nnnnnnnn.HHHHHHHH.HHHHHHHH

 

Class C

 

192. 0. 0. 0 = 11000000.00000000.00000000.00000000

223.255.255.255 = 11011111.11111111.11111111.11111111

110nnnnn.nnnnnnnn.nnnnnnnn.HHHHHHHH

 

Class D

 

224. 0. 0. 0 = 11100000.00000000.00000000.00000000

239.255.255.255 = 11101111.11111111.11111111.11111111

1110XXXX.XXXXXXXX.XXXXXXXX.XXXXXXXX

 

Class E

 

240. 0. 0. 0 = 11110000.00000000.00000000.00000000

255.255.255.255 = 11111111.11111111.11111111.11111111

1111XXXX.XXXXXXXX.XXXXXXXX.XXXXXXXX

2. The scope of numbers from 224.0.0.0 to 239.255.255.255 are utilized for multicast parcels. This is known as Class D address run.

I hope it has been a useful article.