AP6522 Log comprehensions

[tech_ori]

Hello,

We have 12 AP6522 and a RFS4000 Wireless Controller. All of them are in version 5.5.1.0-017R. The peripherals connected to the AP are 25 MC90XX.

Since september, we started to check the logs of the AP and I need some help to understand some message or to solve some alerts.

There are the message :

1. KERN-3-ERR: 0| bridge.c:1598 Warning: Filtering MAC address 00-00-00-00-00-00 on vlan 1 port up1 from FDB.
2. DOT11-5-WPA_WPA2_FAILED: Client 00-23-68-00-00-00 failed group key handshake on wlan TerminauxMobiles radio ap6522-AP1:R1
3. DOT11-6-CLIENT_DISASSOCIATED: Client 00-23-68-00-00-00 disassociated from wlan TerminauxMobiles radio ap6522-AP9:R1: client initiated (reason code:3)
4. DOT11-6-CLIENT_DISASSOCIATED: Client 00-23-68-00-00-00 disassociated from wlan TerminauxMobiles radio ap6522-AP3:R1: dot11i 4way handshake timeout (reason code:15)
5. DOT11-6-CLIENT_DISASSOCIATED: Client 00-23-68-00-00-00 disassociated from wlan TerminauxMobiles radio ap6522-AP8:R1: dot11i group handshake timeout (reason code:16)

I found in the FAQ a similar message for KERN-3-ERR but it's slighty different.

I understand with the second message that there is a problem between the AP and the peripheral.

In the manual for the Wing Wireless Reason Code, reason code says "station has left ess" but it doesn't help me.

For the reason code 15 & 16, the manual says that the problem come from the AP or the client. But the wireless cover is excellent and this messages concern all peripheral.

Some peripherals are in 2,4GHz and some in 5GHz. The AP are at 10m high. I think the height may be the problem.

Can you help me with this alerts ?

Best regards.

[Timo1]

Do you also check the warehouse for SNR, Channel plan and CCI?

Just checking for Signal say's mostly nothing

[tech_ori]

We get an intervention to check the Wifi signal and the strengh is good on the entire warehouse. The AP cover very well the building.

For the pocket capture, did you advice me a soft in particular ?
Thanks.

[Timo1]

I get the same 00-00-00-00-00-00 MAC message with a RFS6000 and WiNG 5.8.4. But don't see any of this packages.

For the reason code 15 and 16 you can do a packet capture to understand the problem. Maybe do a spectrum analyst, of the signal strength is perfect.

[tech_ori]

Thanks for additional information.

Do you know this alert : KERN-3-ERR: 0| bridge.c:1598 Warning: Filtering MAC address 00-00-00-00-00-00 on vlan 1 port up1 from FDB ?
I can't find a good explanation. I see a similar message in the FAQ but it's diffrent.

Thanks.

[Ronald_Dvorak]

https://en.wikipedia.org/wiki/IEEE_802.11i-2004\
The group key is for broadcast/multicast messages between the AP-client.

I'd recommend to read this book to get a better unterstanding..
https://www.amazon.fr/Cwna-Certified-Wireless-Administrator-Official/dp/1118893700/