I'm looking for a low-cost wireless solution that can support two SSID's in two different VLAN's. One SSID/VLAN would be for guests and the other would be for employees. The employee network would have MAC filtering enabled, but the guest network would not. Furthermore, the users would need to be able to roam through our campus without having to reconnect, so we would need multiple AP's. Here's a list of features I would like:
MAC address filtering with the ability to support several addresses. Most devices support 16 to 32, but more would be better.
Multiple SSID's with different MAC filtering. One of the problems I've run into with DD-WRT is that you can only have one MAC address list per antenna even if you have multiple SSID's on that antenna. If we need an AP with two antennas that's OK.
Multiple access points on the same network with the same access settings so users can roam without losing connection.
Centralized management. If we end up having a bunch of AP's all over the place with a bunch of MAC address lists, it would be nice to manage them from one location. This feature isn't a requirement.
I would be happy with DD-WRT, a Linux server, and low-cost AP's if it would do the trick.