Wi-Fi Authentication Session Tracking via Echoed Tags
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Solution Overview
Problem
Existing Wi-Fi network authentication systems face difficulties in troubleshooting authentication sessions due to the inability to easily correlate authentication messages, often resulting in challenges in identifying the session to which specific messages belong, especially in cases of unexpected failures.
Innovation Solution
Incorporating a tracking tag into authentication messages sent by the authentication server, which is echoed by the wireless access point and stored with each message in a database, allowing for correlation of messages and facilitating troubleshooting of authentication sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication messages are exchanged between Wi-Fi-enabled devices and authentication servers via wireless access points, then seamless Wi-Fi network access is enabled, but the ability to correlate authentication messages and identify sessions is lost
Solution Approach 1:
The patent introduces a tracking tag as an intermediary element that is inserted into authentication messages by the authentication server and echoed back by the wireless access point. This tracking tag serves as a mediator that carries session identification information through the authentication message exchange process, enabling correlation without interfering with the seamless authentication operation.
Solution Approach 2:
The wireless access point copies the tracking tag from incoming authentication messages and inserts it into outgoing messages. This copying mechanism ensures that the session identification information is preserved and transmitted throughout the authentication process, allowing for later correlation of messages belonging to the same session.
2Reliability
If multiple authentication messages are exchanged during authentication sessions, then proper authentication is achieved, but troubleshooting becomes difficult due to inability to correlate messages
Solution Approach 1:
The tracking tag provides feedback information about the authentication session by being consistently present in all related authentication messages. This feedback mechanism allows system operators to trace and correlate messages belonging to the same session, thereby improving troubleshooting capability while maintaining authentication reliability.
3Ease of repair
If tracking tags are inserted into authentication messages, then message correlation and troubleshooting are improved, but authentication message structure becomes more complex
Solution Approach 1:
The tracking tag is nested within the existing authentication message structure, specifically being inserted into the State attribute field of RADIUS messages. This nesting approach allows the tracking information to be embedded within the existing message framework without requiring fundamental structural changes, thereby minimizing the increase in system complexity.
Data Source
AI summary
Systems and methods of tracking authentication sessions performed between Wi-Fi-enabled devices and authentication servers via wireless access points in Wi-Fi networks that allow authentication messages to be easily correlated to determine the authentication sessions to which the authentication messages belong. The systems and methods employ a tracking tag that an authentication server can insert into each authentication message that it sends to a Wi-Fi-enabled device via a wireless access point in an authentication session. By having the wireless access point echo the same tracking tag in each subsequent authentication message that it forwards to the authentication server, and storing each authentication message with its tracking tag in a database, the authentication messages stored in the database can be correlated using their tracking tags to determine the authentication session to which the respective authentication messages belong, thereby facilitating subsequent troubleshooting of the authentication session in the event of an unexpected failure.