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Every NIC (Network Interface Card) has a unique MAC address ( Media Access Control). This applies to all types of network cards, including Ethernet cards and WiFi cards.

The MAC Address is a six-byte number or 12-digit hexadecimal number that is used to uniquely identify a host on a network. An example of a MAC address is 1F-2E-3D-4C-5B-6A and it falls into the Layer 2 networking protocol of the OSI model. Obd2 scanner tool software for mac. In today’s networks, ARP, or Address Resolution Protocol converts a MAC address to a Layer 3 protocol address, such as an IP address. A MAC address can also be called a Physical Address.

Read my post on if you don’t know it. All MAC addresses are hard-coded into a network card and can never be changed. However, you can change or spoof the MAC address in the operating system itself using a few simple tricks. So why would you want to change your MAC address? Well there are many reasons for this, mostly related to bypassing some kind of MAC address filter set on a modem, router or firewall.

Changing the MAC Address can help you bypass certain network restrictions by emulating an unrestricted MAC Address or by spoofing a MAC address that is already authorized. For example, a WiFi network may allow only authorized computers to connect to the network and filters out computers based on the MAC address. If you can sniff out a legitimate MAC address, you can then spoof your MAC address and gain access to the WiFi network. Another example is if you have an ISP that allows only a certain number of computers to connect to the Internet from your home. If you have more computers that need to connect, you can spoof the MAC address of an authorized computer and connect from a different computer. Change Windows MAC Address You can change the MAC address for the network card in Windows pretty easily following the steps below. Step 1: Click on Start, then Control Panel, then Network Connections, and right-click on the network connection you want to change the MAC address for and select Properties.

If you know your password and can use it to log in to your account, you can change your password in Users & Groups preferences: Choose System Preferences from the Apple menu, then click Users & Groups. Select your user name from the list of users. Click the Change Password button, then follow the onscreen instructions. How to Check for and Install Updates on a Mac Computer. In this Article: Updating App Store Apps and System Software Enabling Automatic Updates Updating Apps Installed Without the App Store Upgrading to a Newer OS X Version Installing Updates in Legacy OS X Versions Community Q&A Software updates keep your computer and programs secure, fix errors, and provide new features. Optional: If you previously installed the software for a USB connection and now want to change to a wireless network connection, remove the USB installation before you continue. Search Windows for your printer model name, then click the printer name in the list of results. Each network interface connected to your network—whether it’s your router, wireless device, or network card in your computer—has a unique media access control (MAC) address.These MAC addresses—sometimes referred to as physical or hardware addresses—are assigned in the factory, but you can usually change the addresses in software.