Mac address spoofing in linux.

One of the most simple ways to close a network is to configure your AP to allow connections only from specific wireless network cards.

Each network card has a Mac address just like ethernetcards ,and every Mac address in unique.

Some APs allow you to specify a list of legitimate Mac address. If a machine attempts to join the network with a a trusted Mac address, it can connect; otherwise the request is silently ignored.

Each card comes with a Mac address hard coded by the vendor. However an attacker can change it trivially by using the ifconfig command

Gspace# ifconfig wlan0 10:20:30:40:50:60

The attacker needs to know a trusted Mac address. However if she is patient ,she can simply sniff the network and log all Mac addresses that are in use. When one of them stops transmitting for a while,she can steal it and the AP will not be wiser..

Adarshreddy Adelli

As an Engineering Lead with deep expertise in Artificial Intelligence, Cybersecurity, and Systems Architecture, I guide teams in building innovative, secure, and scalable solutions.I am passionate about tackling challenging technical problems, fostering engineering excellence, and delivering solutions that balance innovation, security, and performance. I actively share knowledge through blogging and community engagement, contributing to the advancement of AI and cybersecurity practices.