IP Addressing :

An IP Address is a Unique identifier for devices on a network.

IPv4: 32-bit address (e.g., 192.168.1.1), divided into 4 octets. Limited up to 4.3 billion Addresses.

IPv6: 128-bit address (Example 2001:0db8:85a3:0000:0000:8a2e:0370:7334).Virtually unlimited addresses.

IPv4 Classes :

Class	Range
A	1 - 126
B	128 - 191
C	192 - 223
D	224 - 239
E	240 - 255