Understanding Wireless Mac Address

Hi,
I would like to know te range of mac address used for only Cisco Wireless, and I would appreciate to know how the ap and the controler assign the virtual mac address they use and how to get them from the WLC gui.
WLC - 4400
AP - Air1131
Thanks

As you add SSIDs (Service Set Identification(s)) to an access point each BSSID (Basic Service Set Identifier) receives a virtual mac address. This allows for wireless network segmentation as well as for wireless clients to communicate via LAYER 2 with each access point BSSID.
A Cisco access point takes the base radio mac address and then virtualizes the mac address as additional SSIDs are added. What is interesting is how the virtual MAC addresses are selected. Pay very close attention to the 2.4GHz and 5 GHz radios and BSSIDs.
BASE RADIO MAC ADDRESS
You can find the base radio mac address under WIRELESS->Select Access Point
Virtualized BSSID(s)
I configured a controller with 16 SSIDs. Each SSID named as 01,02,03,04,05,06, 07,08,09,10,11,12,13,14,15 and 16. I then enabled both the 2.4 GHz and 5 GHz radios. Cisco WLC access points have a limit of 16 SSIDs on each radio.
I then fired up AirMagnet WiFi Analyzer Pro to conduct a capture.
Note: The access point base radio mac address ends in A9:10.
2.4 GHz – Notice the first SSID ‘01’ is assigned the BASE RADIO MAC ADDRESS A9:10. The second SSID is appended with a .11 and so on.
5GHz – Notice the sixteenth SSID ‘16’ is assigned the BASE RADIO MAC ADDRESS A9:10. The fifteenth SSID is appended with a .11 and so on.
NOTE: The VIRTUAL MAC ADDRESSES get reused by the access point on both the 2.4GHz and the 5GHz radios.
Virtualized BSSID Assignment
Keep in mind, the assignment or order in which the virtual mac addresses are assigned in the above example has nothing to do with the WLAN IDs that are configured in the WLC. Rather, the virtual mac addresses are assigned in order by how the SSID is assigned to the access point.

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    Bob Mahar | Work in education?
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    - - - - - - - - - - | - - - - - - - -
    Programming is like teaching | http://twitter.com/BobMahar
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