If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly. For example, these are examples of OUI: 00:00:0A - this is owned by Omron. The OUI is basically the first three octets of a MAC address. They are purchased and assigned by the IEEE. Likewise, people ask, who owns a MAC address? First 6-digits (say 00:40:96) of MAC Address identifies the manufacturer, called as OUI (Organizational Unique Identifier). Likewise, how do you write MAC address? Format of MAC Address – MAC Address is a 12-digit hexadecimal number (6-Byte binary number), which is mostly represented by Colon-Hexadecimal notation. Once you start jumping between different networks IP addresses take over. There you’ll find your IP address under Router. Then choose the TCP/IP tab in the next window. In your Network settings, choose Wi-Fi from the left-side menu and click Advanced in the bottom-right corner of the window. In other words, your computer at home can see the MAC addresses of other computers that are at your house because they are on the same network. On Mac, click on the WiFi icon in the menu bar and choose Open Network Preferences. Technically, a MAC address can be only traced on the network that it is currently connected to. The now displayed Physical Address is the MAC address of your network device.
HOW TO FIND MAC ADDRESS OF OTHER COMPUTERS IN A NETWORK WINDOWS
The router responds, “I have IP address 192.168.1.1 and I see that you’re calling from 192.168.1.2 so I’ll forward all data packets to your physical MAC address 01:23:45:67:89:AB.The easiest way to get your Mac address under Microsoft Windows is to open the command line or Powershell and enter the command: ipconfig /all. “Please tell 192.168.1.2” (tell me, the laptop, because I’m trying to send/receive data).
The laptop says “who has IP address 192.168.1.1”? (which is the routers IP address).
The person trying to reach you is trying to deliver a package to your home address (in this case, the package is a data packet).The operator (router) receives a call for you and forwards the call (using the ARP protocol) to your home phone number (your private IP address).You have a physical home address located at 123 Main St, Somewhere, USA (let’s say this is your computers MAC address).You have a private home phone number (your private IP address).The telephone operator is, let’s say, your NAT server (router).Once again, let’s use the address and telephone number example to break this down into a digestible example: TIP: ARP may sound similar to a Network Address Translation (NAT), but you need to understand that NAT is used for addressing and locating networks whereas, ARP is used to deliver the actual data to the physical device. Once the request reaches the correct network using the IP address, ARP is what converts an IP address to a MAC address and delivers the data packet to the right computer. The IP address is what is first used to find the right network. So, the router sends a broadcast that says “hey everyone, if you have IP address X, please tell me what your MAC address is.” One of your computers will respond “Hello, I have IP address X and my MAC address is XYZ, please forward the data to my MAC address.” Your router is basically trying to resolve (find) the physical address of which computer this IP address belongs to. So, the router sends an ARP broadcast request on the LAN. When you router wants to send data packets to your computer with IP address ‘X’, the router needs to know what your computers MAC address is. If your computer has two Ethernet ports and dual-band wireless, it will have four MAC addresses. If it has dual-band wireless capability, it will have a MAC address for each wireless band. If the computer has two Ethernet ports, it will have a MAC address for each Ethernet port. Each network controller has its own MAC address. In the previous image, I have one Etherent controller, and one wireless controller.