Wireless Client Authentication Recovery from Recursive Re-Association Loops
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Solution Overview
Problem
Client devices often get stuck in an infinite loop of sending re-association requests to the same Access Point (AP) due to authentication failures during dual VLAN posturing, particularly in the third EAPOL handshake, leading to a situation where they cannot recover without manual intervention.
Innovation Solution
An indication is sent to the client device after a predetermined number of authentication failures, triggering it to send a new association request instead of a re-association request, breaking the loop and allowing recovery without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the client device continuously sends re-association requests to the same Access Point after authentication failures, then the device attempts to maintain network connection, but the device enters an infinite loop and cannot recover without manual intervention
Solution Approach 1:
The Access Point monitors authentication failure events from the client device and uses this feedback to determine when to send the indication message. After detecting a threshold number of authentication failures, the AP sends an indication to the client device to switch from re-association requests to a new association request, breaking the infinite loop and enabling automatic recovery.
2Duration of action of stationary object
If the client device sends re-association requests to maintain connection, then connection continuity is attempted, but the device gets stuck in a recursive failure loop
Solution Approach 1:
Instead of continuing to send re-association requests (the same action that caused failure), the system inverts the approach by having the client device send a completely new association request. This fundamental change in the association process breaks the recursive failure pattern and allows re-authentication.
3Reliability
If manual intervention is required to recover from authentication failures, then authentication accuracy can be ensured, but system automation and productivity decrease
Solution Approach 1:
The system enables self-service by automatically detecting authentication failures and triggering the recovery process without human intervention. The Access Point monitors failure events, determines when the threshold is reached, and sends the indication message to the client device, which then autonomously switches to sending a new association request to recover from the failure state.
Data Source
AI summary
Recovering from recursive wireless client authentication failures may be provided. A re-association request may be received from a client device in response to the client device failing to authenticate with a network through an Access Point (AP) of the network. The re-association request may be processed. In response to processing of the re-association request resulting in another authentication failure for the client device through the AP, it may be determined that a number of authentication failures through the AP is greater than a predetermined number. An indication may be sent to the client device in response to determining that the number of authentication failures is greater than the predetermined number. The indication frame may trigger the client device to send a new association request instead of another re-association request.