Denial of service attacks tend to be some of the more dangerous techniques to practice or try to get hands on experience with. It is very easy to fat finger a mac address and take down a device that you do not have lawful permission to test against. For this reason, unless you are an adequately trained professional and adequately equipped to negate any potential inadvertent risks, it is advised to not attempt these techniques (even in a lab environment).
Warning - Inadvertent Outages
This technique can cause outages for any nearby WiFi-enabled devices.
It is strongly advised to not attempt this technique unless you are adequately trained and equipped to do so safely and be in compliance with local laws and regulations.
Warning - Regarding Legality
Performing this technique may not be in compliance with relevant laws and regulation. Please ensure that you confirm that any experiments or exercises are done within the bounds of the laws and regulations that apply to your location.
Sending authentication frames to all accessible Access Points (APs) within range can overload these APs, especially when numerous clients are involved. This intense traffic can lead to system instability, causing some APs to freeze or even reset.