What are IP Addresses?
IP addresses are unique identifiers that are assigned to devices that are connected to the internet. IP addresses are composed of four numbers, separated by periods, and they look something like this: 192.168.1.1.
Every device that is connected to the internet has to have an IP address. This includes devices like laptops, cell phones, and tablets, as well as devices like routers and modems.
How IP addresses are classified?
IP addresses are classified based on their purpose. There are five classes of IP addresses, and each class is designated for a specific type of use.
The five classes of IP addresses are:
Class A
Class B
Class C
Class D
Class E
Class A IP addresses are for large organizations and corporations. Class B IP addresses are for medium-sized organizations, and Class C IP addresses are for small businesses and individual users. Class D IP addresses are for multicast applications, and Class E IP addresses are for experimental applications.
Class D IP addresses are reserved for multicast applications. This means that packets addressed to a Class D address are automatically delivered to all devices on the network that has joined the multicast group to which the address belongs.
Class E IP addresses are reserved for experimental applications. This means that packets addressed to a Class E address are not automatically delivered to any devices on the network. Instead, the network administrator must specifically configure the devices on the network to receive packets addressed to a Class E address.