IP Address Classes A,B,C,D,E in Networking || IP Addressing ||

IP Address Classes

#Summary - In today's blog we will discuss about IP Address classes that is very important part of Networking.

#IP Address Classes (Classful IP Addressing) -

Class A
Class B
Class C
Class D
Class E

The Scheme of IP Addressing using address is called Classful Addressing. Classful addressing allows only network blocks from Class A, Class B, and Class C prefix corresponding to 8-bit, 16-bit, and 24-bit network prefix addresses. TCP/IP defines Class D for multicasting and Class E for experimental purpose.

#Class A Addressing -

*Class A consists of 8 bit Network ID and 24 bit host ID.

*Each Network in Class A will have 2^24-2 = 16,777,214 number of host Addresses available to assign to the devices except for two reserved host addresses in each network.

*Class A can contain 128 networks blocks where the first network block address starts from 0.0.0.0 to 0.255.255.255 where 0 is the network ID.

*Similarly, second network block address address start from 1.0.0.0.0 to 1.255.255.255 where 1 is the Network ID for second network block.In Class A First and the last network block are reserved for special purpose.

*Class A provides 1 reserved network adress for private address that range is 10.0.0.0 to 10.255.255.255

* Class A provides 14,777,216 host addresses that is useful for big organization.

Note - Reserved host addresses are one of network address and another for broadcast address. First byte of Class A specifies decimal values from 0 to 127.

for more information watch video

#Class B Addressing -

*Class b Addresses consists of 16-bit Network ID and 16-bit Host ID.

*In class B each Network will have 2^16-2 = 65,534 number of host addresses available to assign to the devices. This address class consists of 16,384 network blocks.

*The first block starts from 128.0.0.0 to 128.0.255.255. In this address class the first two bytes represent Network ID that is 128.0.x.x where 'x' is any number between 0 and 255.

*The last network block starts from 191.255.0.0 to191.255.255.255 where, the network ID of last block is 191.255.x.x

*In Class B addressing 16 reserved network address block for private addresses that range is 172.16.0.0 to 172.31.255.255

*First Byte of Class B Specifies decimal values from 128 to 191.

For more information watch video

#Class C Addressing -

* Class C addresses consists of 24 bit network ID and 8 bit Host ID.

*In the Class C each Network will have 2^8-2 = 254 number of host addresses available to be assigned to the devices.

*Class c address supports 20,97,152 network blocks.

*The first block starts from 192.0.0.0 to 192.0.0.255 and the last network block in Class C starts from 223.255.255.0 to 223.255.255.255 where the network id is 223.255.255.x.

*Class C provides 256 network blocks which are reserved for private addresses that range is 192.168.0.0 to 192.168.255.255

*First Byte of Class C specifies decimal values from 192 to 223.

for more information watch video

#Class D Addresses -

*Class D address class is designed for multicasting.

*Each address in this class defines a particular group of hosts over the internet.

*Class D addresses used for one to many types communication.

*First Byte of Class D specifies decimal values from 224 to 239 (224.0.0.0 to 239.255.255.255).

*Class E Addresses -

*Class E address is reserved for future and experimental use.

*First Byte of Class E specifies decimal Values from 240 to 255 (240.0.0.0 to 254.255.255.254)

Thanks.....

IP Address Classes A,B,C,D,E in Networking || IP Addressing ||