Ah, I didn't even think about CCKM requiring WDS but that makes perfect sense 
when you think of the need to distribute keys.  That's a good nugget to keep in 
mind – if the requirement is for CCKM with multiple autonomous AP's then it's 
inherently asking for WDS as well.

And good note on 'network eap', thanks for the reminder.

Thanks Jeff

From: Jeff Rensink <[email protected]<mailto:[email protected]>>
Date: Monday, February 10, 2014 10:08 AM
To: Jay Killion <[email protected]<mailto:[email protected]>>
Cc: 
"[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: [OSL | CCIE_Wireless] AAP - WGB not compatible with CCKM?

I would suggest two things.

First, any time you do AP to AP associations, I recommend configuring the 
"authentication network-eap" command.  I don't think that's the issue here, as 
it works without the CCKM option.  But go ahead and put it in.

Second, you need to have WDS operating for CCKM to work in the autonomous 
world.  I'm guessing that this is your issue. I replicated your scenario and 
with WDS, the WGB never even showed up int the associations list.  ONce I got 
WDS working on the root AP, it worked.  Here is my config under the SSID on the 
root.

   authentication open eap eap_methods
   authentication network-eap eap_methods
   authentication key-management wpa version 2 cckm

and the association details (once WDS was running)

AAP1#sho dot11 ass acf2.c5ea.cac2
Address           : acf2.c5ea.cac2     Name             : AAP2
IP Address        : 10.10.110.101      Interface        : Dot11Radio 0
Device            : WGB                Software Version : NONE
CCX Version       : 5                  Client MFP       : Off

State             : EAP-Assoc          Parent           : self
SSID              : fork-01
VLAN              : 17
Hops to Infra     : 1                  Association Id   : 1
Clients Associated: 0                  Repeaters associated: 0
Tunnel Address    : 0.0.0.0
Key Mgmt type     : CCKM               Encryption       : AES-CCMP
Current Rate      : 48.0               Capability       : WMM ShortHdr ShortSlot


Regards,



Jeff Rensink : Sr Instructor : iPexpert<http://www.ipexpert.com/>

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On Mon, Feb 10, 2014 at 9:38 AM, Jay Killion (jakillio) 
<[email protected]<mailto:[email protected]>> wrote:
Hi all -

I'm going back through WB1 and have hit an interesting issue with lab 3.12.  
It's a basic WGB lab with the requirement to "ensure only Cisco clients can 
associate" - which leads to CCKM.  I configure the SSID as follows -

dot11 ssid WGB-01
   vlan 11
   authentication open eap eap_methods
   authentication key-management wpa version 2 cckm

With this configuration, I can't even get the WGB to associate.  But simply 
remove "cckm" from the authentication key and everything immediately begins 
working.  Something I'm missing?  If CCKM can't be used, how else would you 
only allow Cisco clients?

Here's an example of what I see on the root.

(Set auth to WPA2 only - Working)
AAP1(config)#dot11 ss WGB-01
AAP1(config-ssid)#auth k w v 2
AAP1(config-ssid)#

AAP1#sh dot11 ass

802.11 Client Stations on Dot11Radio0:

SSID [WGB-01] :

MAC Address    IP address      Device        Name            Parent         
State
0024.c4a1.e852 10.10.110.101   WGB           AAP2            self           
EAP-Assoc
2477.033d.da08 0.0.0.0         ccx-client    AAP1            self           
AAA_Auth


(Set auth to WPA2/CCKM – AAP2 drops and won't associate)
AAP1(config)#dot11 ss WGB-01
AAP1(config-ssid)#auth k w v 2 c

AAP1#sh dot11 ass
AAP1#

Thanks -

Jay Killion, CCIE #17873

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