Hi Kristian and Sebastiaan

@Kristian: I mainly used this document from Cisco, it is showing the WGB
with EAP-TLS in an unified environment, but the root ap configuration is
simple anyway:

http://www.cisco.com/en/US/products/ps6366/products_configuration_example091
86a00809637dd.shtml

Attached you find my example configurations for the root ap and the wgb. For
the import of the certificates, these commands are essential:

1. Trustpoint configuration

crypto pki trustpoint {Trustpoint Name}
 enrollment terminal pem
 fqdn none
 subject-name CN={Hostname}
 revocation-check none
 rsakeypair manual-key 2048
!

2. Dot1x credentials and profile

dot1x credentials eap-tls
 username {Hostname}
 pki-trustpoint {Trustpoint Name}
!
eap profile eap-tls
 method tls
!

3. CA certificate import

crypto pki authenticate {Trustpoint Name}

4. User certificate request generation

crypto pki authenticate {Trustpoint Name}

5. User certificate import

crypto pki import {Trustpoint Name} certificate

If you have any questions, just ask ;-)

@Sebastiaan: This is the radio configuration, so it should be CCMP and not
TKIP:

interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption mode ciphers aes-ccm
 !
 ssid wgb-eap-tls
 !
 station-role workgroup-bridge
 bridge-group 1
 bridge-group 1 spanning-disabled
!

I am using this IOS version:

Cisco IOS Software, C1240 Software (C1240-K9W7-M), Version 12.3(8)JEA3,
RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 21-Nov-07 13:59 by ccai

ROM: Bootstrap program is C1240 boot loader
BOOTLDR: C1240 Boot Loader (C1240-BOOT-M) Version 12.4(13d)JA, RELEASE
SOFTWARE (fc2)

Regards
Dominic


> Von: "Sebastiaan Noppe (Europe)" <[email protected]>
> Datum: Mon, 10 Jan 2011 11:51:48 +0100
> An: <[email protected]>
> Betreff: Re: [CCIE Wireless] WGB with EAP-TLS and CCKM (Stalder Dominic)
> 
> Hey,
> 
> I'm finding these outputs conflicting.
> To my knowledge, when you are performing AES-CCMP, there is no concept of
> TSC's. PN's are used.
> I suppose you are encrypting the radio's using TKIP ?
> Would it be possible to show the Dotradio config ?
> What SW are you running on the bridges ?
> 
> Regards,
> 
> Sebastiaan
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Kristján
> Ólafur Eðvarðsson
> Sent: 09 January 2011 23:57
> To: [email protected]
> Subject: [CCIE Wireless] WGB with EAP-TLS and CCKM (Stalder Dominic)
> 
> Interesting stuff Dominic.
>  I have always slightly worried that they want to
> to do EAP-TLS client on a WGB. Do you have any docmuentation
> on of you get the Certfificate on the WGB ?
> 
> regards. Kristjan
> 
> Today's Topics:
> 
>    1. WGB with EAP-TLS and CCKM (Stalder Dominic)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 5 Jan 2011 17:41:26 +0000
> From: Stalder Dominic <[email protected]>
> To: "[email protected]"
> <[email protected]>
> Subject: [CCIE Wireless] WGB with EAP-TLS and CCKM
> Message-ID: <c94a6bd6.29f6%[email protected]>
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi there
> 
> I was just playing around and tried to configure a WGB with EAP-TLS and CCKM.
> If I use the following configuration without CCKM, all works great:
> 
> dot11 ssid wgb-eap-tls
>    authentication open eap eap_methods
>    authentication network-eap eap_methods
>    authentication key-management wpa
> 
> If I change it to CCKM, after the reauth timeout it re-connects the WGB and
> shows the message at the bottom:
> 
> wlccp ap username d password 7 050F020B25
> wlccp authentication-server infrastructure eap_methods
> wlccp authentication-server client any eap_methods
>   ssid wgb-eap-tls
> wlccp wds priority 255 interface BVI1
> 
> dot11 ssid wgb-eap-tls
>    authentication open eap eap_methods
>    authentication network-eap eap_methods
>    authentication key-management cckm
> 
> Jan  5 17:33:10.971: %DOT11-4-UPLINK_ESTABLISHED: Interface Dot11Radio0,
> Associated To AP root 003a.9927.57b0 [EAP-TLS CCKM]
> Jan  5 17:33:11.008: %DOT11-4-CCMP_REPLAY: AES-CCMP TSC replay was detected on
> a packet (TSC 0x2) received from 003a.9927.57b0.
> Jan  5 17:33:11.108: %DOT11-4-CCMP_REPLAY: AES-CCMP TSC replay was detected on
> a packet (TSC 0x2) received from 003a.9927.57b0.
> 
> @Cisco it says: AES-CCMP TSC replay was indicated on a frame. A replay of the
> AES-CCMP TSC in a received packet almost indicates an active attack.
> 
> 
> I do not attack my own network ;-) Does anybody know what the problem could
> be?
> 
> Regards
> Dominic
> -------------- next part --------------
> _______________________________________________
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Attachment: root.cfg
Description: root.cfg

Attachment: wgb.cfg
Description: wgb.cfg

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