Question: Why Do We Need An IP Address?

Is IP address really unique?

An IP address is not necessarily an “identity on the internet”, it is just a unique address assigned to a specific network card on an IP network.

The internet is one big network, and so anything on it (that has an IP address) has a unique address, and so the IP address can be considered its identity..

Can MAC address be changed?

However, while changing the MAC address of a device isn’t possible unless you replace the network hardware itself, there are ways to fool the OS into broadcasting a different MAC address to the network.

Why do we need both IP and MAC addresses?

Computer A could potentially learn the IP Address of Computer 2. … And that’s why computers have both MAC Addresses and IP Addresses. MAC Addresses handle the physical connection from computer to computer while IP Addresses handle the logical routeable connection from both computer to computer AND network to network.

Is a MAC address permanent?

A MAC address is unique and permanent. It’s embedded in each networking adapter by the manufacturer.

Is it safe to give my IP address?

Answer No its not dangerous to share your IP, but it may be a sign of poor security practices masked by IP-based Access Lists. It’s a common practice : for restricting an outside access to VPN and other services. You should not worry and use a static IP address – for your own safety, btw.

How do I protect my IP address?

The two primary ways to hide your IP address are using a proxy server or using a virtual private network (VPN). (There’s also Tor, which is great for extreme anonymization, but it’s very slow and for most people isn’t necessary.) A proxy server is an intermediary server through which your traffic gets routed.

Is it dangerous if someone knows your IP?

If someone knows your IP address, they can try to connect to your device directly. … There are tens of thousands of ports for every IP address, and a hacker who knows your IP can try to brute-force a connection. Once they succeed, hackers can take control of your device, steal your data or even impersonate you.

What does IP address tell you?

The IP address routes internet traffic to your computer. To clarify, it does not reveal your location. If someone was able to get your IP address they could learn a bit about your internet service, such as which provider you use to connect to the internet, but they really can’t locate you, your home, or your office.

Can someone track my MAC address?

In short, MAC address is not routable. The only thing MAC address can be traced is the MAC address facing the ISP. … So, the short answer is only MAC address of the device directly connected to the ISP can be traced by the ISP.

Does IP address show history?

Since an IP address by itself is not a data store, it does not show the history of what sites were visited or data passed through it. The IP address shows nothing much to humans. It part of a process that tells the Internet infrastructure how to find your computer, but few humans have much use for it.

What is the purpose of MAC address?

Some modern operating systems, such as Apple iOS and Android, especially in mobile devices, are designed to randomize the assignment of a MAC address to network interface when scanning for wireless access points to avert tracking systems.

What can someone do with your IP address?

With someone’s IP address, you can learn a user’s general location, and disable some parts of their internet browsing experience. Every device connected to the internet has an IP address, which helps websites identify your computer.

How do you know if someone is using your IP address?

Check The Log To See If Someone’s Been On The first way to see if someone’s been leeching off your wireless network is to check the logs for unknown IP addresses. Log into your router by entering its IP address into your browser address bar.

Should I be worried if someone has my IP address?

Don’t worry too much They can work out your ISP and approximate location, but usually not any other personal information. Potentially they can connect your IP with other online activity, but that’s more a Google/NSA thing than some guy on a forum. You are absolutely right to lock down your router.