SSID to Radius without WLC (Aironet 1240)

Question

Hi.
I am working on setting up a new WLAN infrastructure. I have set up different SSIDs connected to different VLANs, in the AP.
I also want to use Windows NPS for authenticating users on the different SSIDs, with different authentication methods based on which SSID the user/device is connecting to. To do that, NPS needs to get the SSID, but the Aironet 1240 only sends its MAC address in the Called-Station-Id. I have read a bit about this, and found out that if I have a WLC, it will add the SSID to to the Called-Station-Id. But since we do not have a WLC, I am trying to get this to work anyway.
Is it possible to modify the Called-Station-Id to include the SSID on an Aironet 1240? If not, is it possible to send the SSID as a separate attribute that can be read by the NPS?

Answer 1

For your reference , please check the following two links about having custom VSAs on NPS:
http://technet.microsoft.com/en-us/library/cc754417%28v=ws.10%29.aspx
http://technet.microsoft.com/en-us/library/cc731611%28v=ws.10%29.aspx
Information about the custome attributes i mentioned above:
name : cisco-av-pair
ID      : 1
Type  : String
Direction: Both
Multiple allowed : True
IETF vendor code for Cisco is 6
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