802.1X authentication prompt for repeated authentication offline
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Network Topology
None
Problem Description
AC and IMC perform remote 802.1x authentication, and discover that the terminal may drop during roaming. IMC prompts for duplicate authentication to drop the line.
Process Analysis
When the radius server receives an authentication request again when there is a terminal table entry, if the server receives an authentication request message and finds that the wireless client's table entry already exists locally, it will reply to the device with an authentication failure message, causing the client to be unable to go online through authentication.
Solution
Add configuration, wlan client security authentication clear previous connection, clear old connections. Send the billing stop message before sending the authentication request message on the client line.