Can someone else use the IP address I used?

Landlord, is the IP you are talking about public or private?

1. The IP of the public network is unique in the world and assigned to you by the telecom company. But generally speaking, the IP assigned to you is different every time you go online. First, there is a shortage of IP addresses (upgrading to the next generation network IPV6 will not solve this problem). Second, it can prevent attacks. Otherwise, someone knows that your IP address is for your home, and your home network security will be very dangerous, hehe.

2. If it is a private network IP, you can use it at will. There are three kinds of so-called private network IP, 10. *. *,172.16. * * and 192.5438+068. *. *, in general.

3. I don't know if you are asking whether others in the local area network have stolen your IP. This problem may exist. If the switch used in your local area network is a cheap switch without security management function, others only need to change the IP address and MAC address of the machine to be the same as yours, and you will not have IP conflicts. ...