I am deploying wireless to several buildings and using a wism to manage all of the AP's. I am planning to seperate all of my WLANS from my Wired lans so that each building will have 2 subnets, one for wired and the other for wireless. In the buildings, my AP's will sit on the wired lans so they can get an IP and then tunnel all wireless traffic back to the controller. However, has anyone created a WLAN and mapped it to the same vlan as the wired lan where the AP's sit and get their IPs from a dhcp source? I know it can be done because I have done it, I am just wondering if it is a best practice or a bad practice and why.