Prevention of denial of service attacks using FTM requests

An access point (AP) comprising:

• a processor;
• and
• a memory coupled to the processor, the memory storing instructions executable by the processor to:
• receive, from a client device, a ranging request for initiating a Fine Timing Measurement (FTM) session;
• responsive to determining that the client device is connected with the AP or that the client device is included in an admit list associated with an AP cluster of the AP, determine that the ranging request is received after a threshold time from expiry of an FTM burst period of the client device, wherein the admit list is indicative of client devices connected to at least one AP in the AP duster;
• determine that the ranging request is within an FTM acceptance threshold of the AP;
• determine a number of consecutive unsuccessful FTM bursts between the AP and the client device;
• and
• initiate the FTM session based on the ranging request, in response to determining that the number of consecutive unsuccessful FTM bursts is less than an unsuccessful burst threshold of the AP.

A non-transitory computer-readable medium comprising computer-readable instructions, the computer-readable instructions when executed by a processor, cause the processor to:

• receive, by an access point (AP) from a client device, a ranging request for initiating a Fine Timing Measurement (FTM) session;
• responsive to determining that the client device is connected with the AP or that the client device is included in an admit list associated with an AP cluster of the AP, determine that the ranging request is received after a threshold time from expiry of an FTM burst period of the client device, wherein the admit list is indicative of client devices connected to at least one AP in the AP cluster, determine that the ranging request is within an FTM acceptance threshold of the AP;
• determine a number of consecutive unsuccessful FTM bursts between the AP and the client device;
• and
• initiate the FTM session based on the ranging request, in response to determining that the number of consecutive unsuccessful FTM bursts is less than an unsuccessful burst threshold of the AP.