I have a 3750 switch. I am creating a wireless guest network using an ASA 5550 dmz to provide dhcp for this guest network. I have created the dmz network and placed it in VLAN 200. If I plug my laptop into a port on the switch in vlan 200 I receive the proper ip address from the ASA and am able to reach the internet. I then configured the SSID on my 1200 series aironet access point. I also configured the appropriate trunk port settings for this access point on the 3750. I know this is working properly as my corporate wpa is working on the 1200 AP. When I configure a laptop to use the guest ssid, they connect to the ap using the wep key but do not receive an ip address. There are no errors indicating that it is a wep key miss match. I have configured an ip helper-address within the vlan 200 settings pointing to the ASA but I cannot get an ip address from the access point. Would this have something to do with the fact that these are two different address ranges?