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You can even run a tracert on the hostname and get a general idea where they are located by the routers the ping packets hop through.

The problem is, a MAC address doesnt travel far enough to be useful.

But how traceable are they If my laptop gets stolen, and I know my MAC address, can I get back to it if the person stole it gets connected to internet, even after formatting the machine and thinking that its safe to connect Seems like this could stop laptop burglaries if that MAC address thing is traceable.

It would at least increase the odds of stolen equipment being recovered.

Most commonly, wireless network adapters are designed to connect to Wi-Fi wireless networks.

Wireless network adapters are commonly built into most modern laptop and portable computers, but they can also be added, using expansion ports on almost all computers.

Click on the term for full definition.) wireless network adapter each interface will have its own MAC address.

In theory, every network card or network interface should have its own unique MAC address that is different from every other network card on the planet.

At its simplest, a packet is nothing more than some number of bytes of data communicated from one point to another, as a single entity.

The best example might be the transfer of a large file of, say, many megabytes.

Rather than just sending the data as one long transmission of data, its broken into packets of smaller size.

Each packet must be acknowledged by the recipient, or it will be re-sent until it is (or until some limit is exceeded).

As an oversimplification, a file transmission might conceptually look like this.

Breaking larger communications into streams of packets allows errors to be tolerated by retransmitting the smaller missed or erroneous packets, rather than having to retransmit the entire file.

Click on the term for full definition.) packet of information is to be sent to.

While the IP addresses involved indicate the original source 3 and ultimate destination, a MAC address is used only on connections from one piece of networking equipment to the next.

But when it arrives at your router A router is a computer network device that receives data through one connection and then sends (routes) it to other connections, perhaps making changes to the data as it passes it on.

Not to be confused with IP, which is completely unrelated.) An ISP is the company providing your home or place of business its connection to the internet.

They may also provide services such as email, web hosting, or more.

Click on the term for full definition.) ISP s router, it contains the MAC address of your router.

When it moves from the ISPs router to another router on the internet, it contains the MAC address of the ISPs router.

Except that like all computers your Macs network adapter has a MAC address.

Im Leo Notenboom and Ive been playing with computers since I took a required programming class in 1976.

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I spent over 18 years as a software engineer at Microsoft, and retired in 2001.

I started Ask Leo in 2003 as a place to help you find answers and become more confident using all this amazing technology at our fingertips.

What they do is resolve the wan ip address of the system the software is installed on into a hostname.

You can then log into your account and see the IP address last used when the software was running.

This can aid law enforcement with the combination of the ISP used by the thief, to track him down.

Practice For Best Mac Address