An IP address is a unique number that almost all network devices have. There are several types of IP addresses, each of which is responsible for a specific parameter.
What is an IP address?
IP addresses are represented by several numbers: either 32-bit or 128-bit, depending on the version used to connect. Each IP address is written in the form of four numbers in a ten-digit system, and they are separated by dots. For example, the IP address might look like this: 192.168.0.1. By itself, an IP address consists of two elements: the network number and the number of the node being used. It is worth noting that if the computers are on a local network, then the IP address will be distributed directly by the system administrator from the addresses reserved in advance. If the computer is connected to the global network, then the IP address will be issued by the ISP.
Varieties of IP addresses
IP-addresses can differ among themselves not only by numbers, but also by their appearance. In total, there are four types of IP addresses, these are: external address, internal, static, and dynamic. Each of these species has its own unique characteristics, advantages and disadvantages. For example, in the event that a user of a personal computer has an external IP address, then he can easily make it so that other people from the Internet connect to him, even those whose provider is different from the one used. The internal IP address is the exact opposite of the previous option. In this case, those people whose provider is not the same as the user will not be able to connect to the network. A static IP address means that the user's IP address will always be the same and will never change. It is worth noting a significant drawback of such an address, which lies in the fact that if a user is blocked on some resource, he will not be able to recover in any way. A dynamic IP address is an address that changes all the time when a user logs on to the Internet again, reboots a router or modem, or reboots a computer, that is, the address changes with each new connection.
As a result, it turns out that there can be only four types of IP addresses: external static, external dynamic, internal static or internal dynamic. External static means that absolutely all people can connect and the IP will never change. External dynamic - everyone will be able to connect in the same way, only with each new connection you will have to give people a new address. Internal static - only those people who have a similar provider with the user distributing the network will be able to connect, and the address will not change. Internal dynamic means that the address will always change and it will need to be given to people all the time, and at the same time, only people with the same provider can connect.
