i guess this will be in conjunction with this new V10.31. feature:
AP LAN MAC address as Called-Station-ID:
+ This feature allows the user to configure Called-Station-Id overwrite flag with a newly added checkbox. + When the above check box is enabled, the Called-Station-Id can be overwritten for both the wired and wireless client with the AP Management port MAC address in the Radius request. + When the above check box is disabled, the wireless client Called-Station-Id uses the BSSID value for the wireless client as before and the AP Management port MAC address for the wired client.