Does a public IP address correspond to a fixed computer network cable port? Hope high finger teachin

The two have nothing to do with each other.

One network cable corresponds to one IP address.

The network cable is the transmission medium. A single computer can correspond to multiple IP addresses. In fact, the network card interface of the computer corresponds to the IP address.

If a computer has two network cards, this computer can have two IP addresses.

An IP address is the address assigned by the network to each user's computer. If a router is installed, each computer is assigned an IP address, which can be acquired automatically or set by itself. Please note that the IP address cannot be the same for each computer.

The same LAN IP address will result in IP conflicts, resulting in a network disconnection.

One BAI cable corresponds to one IP address

IP is the abbreviation of Internet Protocol (the protocol for interconnection between network dus).

Zhi, abbreviated as "network dao association" in Chinese, is a protocol designed for computer networks to connect and communicate with each other. In the Internet, it is a set of rules that enable all computer networks connected to the Internet to communicate with each other, and prescribe 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.

IP addresses are unique.

The network cable is the transmission medium, a computer can correspond to multiple IP addresses, in fact, the network card interface of a computer corresponds to an IP address, such as the computer and two network cards, then the computer can have two IP addresses!

It is a network card and an IP, and the line itself is the transmission, and a computer can have several IPs, but the premise is that there is a network card.

Summary. The IP address of each computer in the intranet is the same, because of the scarcity of public addresses, the internal Internet access is converted into a public address through mapping or port reuse. The public address is the address of the gateway device egress, which can also be said to be the egress address of the router, that is, the address of the operator's broadband entrance.

Is the public IP port of the device in the same LAN the same?

The IP address of each computer in the intranet is the same, because of the scarcity of public addresses, the internal Internet access is converted into a public address through mapping or port reuse. The public address is the address of the gateway device egress, which can also be said to be the egress address of the router, that is, the address of the operator's broadband entrance.

The ports mapped by devices in the same LAN are different, right?

Yes. How does the sent data router determine which port is needed?

This depends on which wireless you are connected to.

I mean. If there is one to to. A device within a local area network. Send data. Since the public IP of the devices in a LAN is the same. How to tell if he is going to send it. To which one?

I can't tell the difference, it's basically a meaning, that is, through an IP, how can it be sent accurately?

So how to deliver it accurately?

When the device is in use, other ports do not output.