Spoofing Techniques for Initiating Deauthentication Attacks in 802.11 Networks

A.

An 802.11 wireless network uses the protocol IEEE 802.11 to communicate wirelessly. A deauthentication attack is a type of attack in which an attacker sends deauthentication packets to a wireless client or an access point, pretending to be the other party, causing a disconnection. This type of attack can be used to disrupt wireless network communication or to force clients to connect to an attacker's rogue access point.

To initiate a deauthentication attack against connected clients in an 802.11 wireless network, the attacker would need to spoof the BSSID (Basic Service Set Identifier) of the access point where the clients are currently connected. The BSSID is a unique identifier that identifies an access point in the wireless network. The attacker can send a deauthentication packet to the client with the spoofed BSSID, causing the client to disconnect from the legitimate access point.

Spoofing the SSID (Service Set Identifier) of the wireless network would not be sufficient to initiate a deauthentication attack. The SSID is a human-readable name that identifies a wireless network. It is used by clients to find and connect to the wireless network, but it is not used to communicate with clients or access points.

Spoofing the MAC address of the target client machine would not be sufficient to initiate a deauthentication attack against connected clients. Deauthentication packets are sent to the access point, not directly to the client machine. Therefore, spoofing the MAC address of the client machine would not cause the client to disconnect from the access point.

Spoofing the broadcast address of the wireless network would not be sufficient to initiate a deauthentication attack. Deauthentication packets are not broadcast packets and are not sent to the broadcast address of the wireless network.

Therefore, the correct answer is A. the BSSID of the AP where the clients are currently connected.