LAA or Locally Administered Address. This is the address that could modify the MAC address of the adapter. The LAA is a kind of administered Media Access Control Address, thus, the LAA of a certain network adapter could be modified to any address, as long as it meets the allowed length.
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Mac Wifi Adapter
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Apple iMac and Macbook's built-in wireless card is known to have limited coverage as it does not feature an external antenna for better signal reception, however we can easily boost the Wi-Fi signal strength and range of any Apple Mac computer using external USB wireless dongles with external antenna. To get this working make sure you have an WiFi USB Adapter which is compatible with Apple Mac OS X and have drivers available for it, luckily for me the Realtek 8191 Chipset based Mini 300Mbps USB Wireless Adapter we used earlier to did the trick. Once you have your wireless usb adapter connected to the Mac we need to identify it and install the correct driver for it, We will be using the Mac OS X ' System Information' utility (find via spotlight search) to get our hardware information as shown below.