Cisco standalone IOS 1252AP has number of SSIDs (MBSSID guest-mode) and one is a public access. It has been noted since the IOS upgrade that the client associations are just growing and growing, and never seem to timeout, even though they are no longer associated, as per the example below:
Cisco Aironet 1250 Series Access Point
Cisco standalone IOS 1252AP/1141N
THEAP#show dot11 associations
802.11 Client Stations on Dot11Radio0:
SSID [XXXXXXXXX] :
MAC Address IP address Device Name Parent State
0023.322c.xxxx 0.0.0.0 unknown - self Assoc
581f.aa41.xxxx 0.0.0.0 unknown - self Assoc
9084.0d2c.xxxx 0.0.0.0 unknown - self Assoc
dc2b.615b.xxxx 0.0.0.0 unknown - self Assoc
THEAP#show dot11 associations dc2b.615b.xxxx
Address : dc2b.615b.xxxx Name : NONE
IP Address : 0.0.0.0 Interface : Dot11Radio 0
Device : unknown Software Version : NONE
CCX Version : NONE Client MFP : Off
State : Assoc Parent : self
SSID : Internode
VLAN : 5
Hops to Infra : 1
Clients Associated: 0 Repeaters associated: 0
This only seems to happen on dot110 (b/g) radio, perhaps due to this being a common client. Tried adding the following to see if the default of 60 is broken
dot11 activity-timeout unknown default 70
1141N AP displays ghost client sessions
Symptom:1141N AP running 12.4(25d)JA code displays ghost client sessions . The expired client sessions are not getting removed on AIR-AP1141N-E-K9 and 'show dot11 association all-clients' output displays some of the expired client entries as well. This behavior is seen in customer n/w and particularly on access-points placed in environments (public hotspot solution) with many "unintended" associations e.g. people passing by with smartphones seems to accumulate associations.
Conditions:Wait some time till the ghost clients are associated to AP.
Workaround: 1. clear dot11 client < MAC of client> will clear the particular client. 2. reload the image will clear all the ghost clients. 3. issue "shut" and "no shut" on interface
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