What an IP address can do and what it does

You can see the address of the other party, which is convenient for finding people, and at the same time provides protection for the police to collect information.

An IP address is a 32-bit address assigned to each host connected to the Internet.

An IP address (Internet Protocol address) refers to an Internet Protocol address, also known as an Internet Protocol address.

IP address is a unified address format provided by the IP protocol, which assigns a logical address to every network and each host on the Internet to mask the difference in physical addresses.

In the Internet, IP is a set of rules that enable all computer networks connected to the Internet to communicate with each other, and sets out the rules that computers should follow when communicating on the Internet. Any computer system manufactured by any manufacturer can be interconnected with the Internet as long as it complies with the IP protocol.

Internet cafes usually have a backup network, for example, if network line A fails, the technician can continue to surf the Internet if the IP is replaced by the backup network B, preventing users from being unable to access the Internet normally.

An IP address is a 32-bit numeric identifier used in the Internet Protocol (IP) protocol to identify and locate a device. It is one of the core concepts that computers and other network devices are necessary to communicate on the internet. An IP address helps the router deliver packets from sender to receiver and ensures that the packets are transmitted correctly across the network.

An IP address consists of 4 digits, each between 0 and 255, separated by a dot. For example, a common IP address. IP addresses are divided into two parts:

Network address and host address. A network address identifies the network to which a computer is connected, and a host address identifies a specific device in that network. Thus, by using IP addresses, computers and other devices can locate and communicate with each other.

The role of an IP address is to identify and locate devices on the Internet, enabling devices to communicate with each other and exchange data. When the device needs to send a packet, it encapsulates the packet in an IP packet and includes the destination IP address and the source IP address in the packet. When a packet travels through the internet, the router will identify the target device based on the IP address and send the packet to the correct device.

In a network, each device must have a unique IP address to ensure that packets are sent to the correct destination device. By using IP addresses, computers and other network devices can communicate with each other and enable various network applications, such as web browsing, e-mail, file transfer, etc. Therefore, IP address is one of the most basic and important concepts in the Internet.

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There are three basic types of IP addresses, which are represented by the first set of digits of the network number.

The first set of numbers for a category A address is 1,126. (Note that the digits 0 and 127 are not Class A addresses, the digits 127 are reserved for the internal loopback function, and the digits 0 indicate that the address is a local host and cannot be delivered.) ）

The first set of numbers for category B addresses is 128,191.

The first set of numbers for category C addresses is 192,223.

IP address addressing scheme: The IP address addressing scheme divides the IP address space into five categories: A, B, C, D, and E, of which A, B, and C are the basic classes, and D and E are used as multicast and retained.

IPv4 has 4 segments, each with a maximum of 255. Due to the vigorous development of the Internet, the demand for IP addresses is increasing, which makes the issuance of IP addresses more and more stringent, and various data show that all IPv4 addresses in the world may be issued between 2005 and 2010 (in fact, the IPv4 bit address allocation was completed on February 3, 2011).