Shiva "probably meant". I can be away from my colleagues computer, but we're on the same network. I can be working from home via VPN and be away from my actual work machine, yet we're still on the same network. I strongly believe your answer should be reworded to clearly indicate that one can only resolve IPs to MACs in a local network, but one can always do that. I agree too. Does this works on Linux? Tried and definitely works on windows May 19 '17 at My Most Embarrassing Mistakes as a Programmer so far.
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- How do I find my device’s MAC address?;
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Feedback post: Moderator review and reinstatement processes. Post for clarifications on the updated pronouns FAQ. Do not confuse an Ethernet or Wireless hardware address with an Internet Protocol v4 "IPv4" address; that's a number assigned to some computers and printers by the Princeton University, and looks something like: Your Ethernet or Wireless hardware address is also not your email address, which typically looks something like rfraggle princeton. The Easiest Way to Discover a Hardware Address Often, the fastest way to discover a device's Ethernet or Wireless hardware address is to look for a printed label.
For example, if you buy an Ethernet or Wireless interface card, check the box it came in for a label; you may recognize the hardware address on the label. Other times, the actual interface may have a sticky label somewhere on it with the hardware address. If your computer or printer has a built-in Ethernet or Wireless interface, you may find a label attached to the back or bottom of the computer displaying the hardware address.
If you find a label, make sure it really is a hardware address; the section above describes what an Ethernet or Wireless hardware address looks like. For example, if you see letters of the alphabet other than A-F, you can be sure you're not looking at an Ethernet or Wireless hardware address; perhaps it is a model number or serial number for your computer. In some cases, you will not find a hardware address displayed on the box, the Ethernet or Wireless interface, or the computer or printer.
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Or you may have discarded the box, and opening the computer or printer to examine the interface card inside may not be a good choice. In these cases, there is usually software you can run on the computer or printer that will display the Ethernet or Wireless hardware address.
Instructions for some popular configurations appear below. Forging Spoofing, Cloning Another Hardware Address is not Acceptable Many devices can be reconfigured so that instead of using the hardware address assigned by the manufacturer, they instead forge another hardware address of your own choosing. This is sometimes called "spoofing" or "cloning" a hardware address, particularly when the forged hardware address is one that belongs to another device. Because a device's hardware address is one of the most important ways the device is identified on the campus network, forging a hardware address is not acceptable on the campus network.
No device attached to the campus network should be configured to forge its hardware address; instead, every device attached to the campus network should use the unique hardware address assigned to it by the manufacturer. Some devices automatically change their network interface's hardware address from time to time, for example, by generating a new random or pseudo-random hardware address.
Some do so periodically. Some do so each time the network interface attaches to a different network. Such devices do so in the belief that it promotes privacy. More often than not, such devices limit this feature to Wireless network interfaces. For some devices, this is a behavior which can be user-configured; for other devices, it is not user-configurable.
For the most part, we do not support use of such devices on the University's networks. Each device attached via an Ethernet or Wireless network interface at the University is expected to use the unique hardware address assigned by the manufacturer to that network interface, not to generate random values or to change the value periodically or each time it connects to a different network. If your device allows you to configure it to generate random hardware addresses or to use its real hardware address, you should configure it to use its real hardware address.
Finding the MAC from MS-DOS or Windows command line
A single device can possess multiple network interfaces and MAC addresses. A laptop computer with Ethernet , Wi-Fi , and Bluetooth connections, for example, has two or sometimes three MAC addresses associated with it, one for each physical network device. It isn't usually possible to look up MAC addresses for devices that are outside a person's physical reach.
It often isn't possible to determine the MAC address of a computer from its IP address alone because these two addresses originate from different sources.fgc-engineering.com/5136.php
windows - Get only ethernet MAC-address via command prompt - Stack Overflow
A computer's hardware configuration determines its MAC address, while the configuration of the network it is connected to determines its IP address. Most computers let you see this list of addresses that ARP has collected. However, it only works within the small group of computers on a local area network LAN , not across the internet. ARP is intended to be used by system administrators and is not a typically useful way to track down computers and people on the internet.
Start by pinging the device you want the MAC to address for:. You will want to use a local address, so if your network is