У меня есть 2 компьютера, и я проверил IP-адрес на каждом компьютере, зайдя на этот сайт.
На обоих компьютерах IP-адрес одинаковый ?!
Разве не каждый компьютер должен иметь уникальный IP-адрес?
Google говорит: уникальная строка чисел, разделенных точками, которая идентифицирует каждый компьютер, использующий интернет-протокол для связи по сети.
Два компьютера используют один и тот же интернет.
Что не так с моим IP-адресом?
Let me guess, both your systems are behind a router, right?
If so, then there's NOTHING wrong with your IP address(es).
Each computer on your private LAN does have its own IP address, but you only have one public Internet IP address, and that's what that site is showing you.
Your router handles the back and forth address translation so that your two devices can share one public (Internet) IP address.
For more info on how NAT routing works, check out these other SU questions:
Your router/gateway will be doing Network Address Translation [NAT] so that any outside IP reporter will only ever see the allocated address of your router.
If you want to know your internal IP Address, then [for Win 7, but similar in others] go to Control Panel > Network & Internet > Network Connections. Right click the connection you see in there, get Status. In the following window hit Details
You will see a line that says similar to IPv4 Address: 192.168.0.10
That is your local IP address.
The IP address you see from that site is your public ip. It's the ip of your router not of your computer.
Your router controls traffic between all the computers on your network and the outside world. Within your local network, your computers will have unique ones. From a terminal type ifconfig (or ipconfig from Windows) to see your local ip.