Now you can simply compare the MAC addresses listed here with the one you saw via System Preferences. For example, I ran the following commands below until I reached an interface that didn’t exist. Depending on how many interfaces you have on your computer, you might need to run this command several times adding 1 to the number each time. Ifconfig en0 | grep etherThis will give you the MAC address for the en0 interface. In Terminal, you can get the MAC address by typing in the following command: I thought you could simply choose Manually from the Configure dropdown, but that doesn’t allow you to edit the MAC address. Make sure to select the appropriate interface first (WiFi, Ethernet, etc) in the listbox on the left.Ĭlick on the Hardware tab and you will see the first line is MAC Address. Open System Preferences, click on Network and then click on the Advanced button. You can do this in one of two ways: via System Preferences or via Terminal. To start, let’s find out the current MAC address for your Mac.
I’ll explain everything below step by step, but it gets a bit complicated at times. Secondly, you need to manually figure out the technical name of the adapter before you can change the settings. Firstly, you have to use Terminal (similar to command prompt in Windows) to actually change the MAC address. You can also do so via the registry, but it’s much more technical and probably not required by most people.Ĭhange OS X MAC AddressChanging the MAC address on OS X is definitely not as easy as it is on Windows. This is the simplest way to change your MAC address in Windows. You can go to the command prompt and type in IPCONFIG /ALL to check that the MAC address has been changed. Go ahead and restart the computer in order for the changes to take effect. It will normally either be Local Area Connection or Wireless Network Connection. 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.
#I NEED A PROGRAM THAT WILL BLOCK MAC ADDRESS FOR CERTAIN TIMES WINDOWS#
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.Ĭhange Windows MAC AddressYou can change the MAC address for the network card in Windows pretty easily following the steps below. If you can sniff out a legitimate MAC address, you can then spoof your MAC address and gain access to the WiFi network.Īnother example is if you have an ISP that allows only a certain number of computers to connect to the Internet from your home. 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.įor example, a WiFi network may allow only authorized computers to connect to the network and filters out computers based on the MAC address.
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. A MAC address can also be called a Physical Address.Īll 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. In today’s networks, ARP, or Address Resolution Protocol converts a MAC address to a Layer 3 protocol address, such as an IP address. The MAC Address is a six-byte number or 12-digit hexadecimal number that is used to uniquely identify a host on a network.Īn 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. This applies to all types of network cards, including Ethernet cards and WiFi cards.
Every NIC (Network Interface Card) has a unique MAC address ( Media Access Control).
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