FORMULA TO FIND THE BLOCK SIZE :
Host: Represents no. of users in the network
To find no of users: 2^h-2 >= User Requirement
To find Host Bit (h): 32 - CIDR value
Subnet: A logical subdivision of an IP network
To find subnets: 2^(CIDR Value - Bit value of the given class)
Subnet bit/CIDR value: Classless Inter-Domain Routing - Current number of network bits
To find CIDR Value(subnet bit): Total value of octet i.e. 32 - Host bit value
Subnet Mask: It is used to differentiate host bit and network bits in an ip address
by CIDR value
Network bits are represented as 1 and Host bits are represented as 0.
To find Subnet mask: Exclude the host bit value from the octet value from right to left and add the remaining bit values
Wildcard Mask: It is the reverse of subnet Mask
To find Wildcard mark: 255-SM
Network bits are represented as 0 and Host bits are represented as 1.
