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Cisco Bug: CSCup42735 - idle timeout deauths the client later than the expected time interval

Last Modified

Feb 22, 2018

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases


Description (partial)

idle timeout deauths the client later than the configured time interval on the wlan.

Idle client timer: this is on last frame received from client, and this triggers client to be deleted with reason code 4. This can be any frame from device.

debug and over the air packet capture confirms that the last received frame from the client and the time we deauth it, is way more large than the configured value on the wlan for idle timeout.

wlan configured for idle timeout and client's wifi adaptor was shutdown, to make sure no frames were sourced from it.

calculating the time it was deauthenticated from wlc, comes out to be larger than the configured value of idle timeout on wlan.

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