To change this address you need to go to Device Manager and find your network adapter. You can still change the address or rather “spoof” it to make your computer think it has the MAC address of the original network card, assuming you know what it was. Then you replace your network card because it went bad and now you have a new MAC address and the software won’t work anymore because it’s not the same one it was registered to. Let’s say you have some software that is registered to the MAC address of your computer for licensing purposes. ![]() The IP address is used first to check is if the destination address is in the same IP network as the sending computer or device.Įven though MAC addresses are burned into the device you might have a reason you need to change this address. The ARP (address resolution protocol) is used to get the MAC address of the next hop for packet transfer. Yes everyone knows you need an IP address for network communication but the MAC address for addressing of Ethernet packets from device to device (MAC address to MAC address). They are also known as a hardware address, burned in address (BIA) or physical address and should not to be confused with an IP address. A MAC address is a unique identifier that is assigned to the device by the manufacturer. Every device that connects to a network, whether it’s an internal network or external network such as the Internet has a MAC Address (media access control address).
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