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Need Help with WPA2 Enterprise and IAS

Posted on 2008-10-06
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Last Modified: 2013-11-15
I've got a Windows CE 5.0 device using a Summit Wi-Fi card.  The CE device has the 2.0.17 drivers from Summit (Latest release).

I am using a Linksys Wireless-N Broadband Router as my access point.  The security mode is WPA2 Enterprise.  The encryption method is AES.  The IP address of the RADIUS server is correct (and the AP can ping it), and the shared secret is 4 letters long.  (This is a test to find out how to set up WPA2 Enterprise.)

There is a Windows 2003 Server on the LAN.  I installed IAS to act as the RADIUS server.  I've configured a RADIUS client as the AP.  My remote access policies will grant permission to any user or computer in Domain Users or Domain Computers.  The server is registered in Active Directory.  There is a certificate on the IAS server.

I can see the connection attempts in the IAS logs.  I have no idea what these log entries mean.  Here are two lines from today:

172.16.4.76,MOBI\fnels,10/06/2008,11:13:22,IAS,ZEVON,4,172.16.4.76,30,001ee546c029,31,00172301f9c9,32,001ee546c029,5,49,12,1400,61,19,4108,172.16.4.76,4116,0,4128,TESTWPA2,4155,1,4154,Use Windows authentication for all users,25,311 1 172.16.1.99 10/06/2008 15:12:57 1,4129,MOBI\fnels,4127,5,4149,FredsTest,4130,mobi.local/Engineering/Software Development/Fred Nels,4136,1,4142,0
172.16.4.76,MOBI\fnels,10/06/2008,11:13:22,IAS,ZEVON,25,311 1 172.16.1.99 10/06/2008 15:12:57 1,4130,mobi.local/Engineering/Software Development/Fred Nels,4149,FredsTest,4127,5,4129,MOBI\fnels,4154,Use Windows authentication for all users,4155,1,4108,172.16.4.76,4116,0,4128,TESTWPA2,4136,3,4142,65

On the CE device, I see that the Summit card Associates for a while.  The status then goes to "Not Associated",  and at the same time, the dialog box to collect the user id and password pops up.

I must be close to getting this working.  I am not seeing messages indicating that the user was rejected in the IAS logs.  

I am guessing that the user ID and password that I supply in the dialog box on the CE device ultimately gets authenticated by Active Directory.  The CE device will be part of the Mobi domain once the authentication/authorization succeeds.

Any help would be appreciated.

Thanks!

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Question by:Black_Ed
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Expert Comment

by:arnold
ID: 22656688
Did you configure IAS to provide the vendor Specific attribute as might be required by the Linksys.
Example
http://www.hansenonline.net/Networking/wlanradius.html

The issue is what does IAS send back when the credentials are validated?
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Author Comment

by:Black_Ed
ID: 22658728
How can I find out what IAS sends back?  I thought it might be hidden in the log entries.  The logging on the AP is almost nonexistent.

I'll look at the link and see if that provides the answer.

Thanks for the suggestion!
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Accepted Solution

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arnold earned 500 total points
ID: 22660365
Did you setup any reply item rules?
Download radtest: http://www.filetransit.com/view.php?id=23438
Set the windows system on which you install the device as a client on IAS.
Then use the Radius test to transmit an authentication request to the IAS server and see what the response is.
Which Linksys router are you using?  There might be some specific directions included in the documentation.
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Author Comment

by:Black_Ed
ID: 22660531
I have it working!

I checked the Event Viewer on the server that is running IAS.  It was showing that the user was being denied access by Active Directory.  I called the Network Admin, and he had to change the user configuration to allow remote authentication (or dial-in authentication, I am not sure).

The Event Viewer now shows that the user is being granted access.  My CE device is showing that the wireless connection is made, and I can ping addresses off the box.

I will post a screen shot of the attribute that needed to be set later on.  (I am waiting for the Network Admin to send it.)
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Author Comment

by:Black_Ed
ID: 22679713
I've added the screen shot of what the Network Admin had to change in Active Directory.  

The User's properties in the "Dial-in" tab had to be changed.  The "Remote Access Permission (Dial-in or VPN)" option had to be changed to "Allow access".  The screen shot has the option circled in red.

Ed
WPA2-Enterprise.JPG
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Author Closing Comment

by:Black_Ed
ID: 31503624
Thanks for your help on this!
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