I'm familiar with the procedure for bridging multiple VLANs between two Aironet bridges (e.g. 1300 series) over a single SSID, but I have no idea how it works, and that really bugs me.
Since frame tagging a la 802.1q isn't part of the WiFi protocols (at least I don't think it is), how do the bridges differentiate traffic in the 802.11 packets? Is there some Cisco-proprietary extension of the standards to support 802.1q tags in the 802.11 headers? Or is it something else?