I have a network that i am setting up. The plan is to amalgamate several internet only WLANs to use as little equipment as possible. We have 4 internet connections coming into a Pepwave load balancer, the links are then passed down to a cisco ASA 5510 in and the internal port of the ASA is configured using sub-interfaces to provide each instance on the internal with its own subnet. Please refer to attached diagram for details, if i put PC 2 in one of the VLANS (73) associated with a sub-interface from the ASA in can get and IP and browse using the designated IP subnet so i know DHCP and all rules on the ASA are working. I then created an interface on the Cisco WLC 5508 ensured that it is in the appropriate VLAN (73) and has an IP from the required subnet. From the WLC i can ping the gateway for the VLAN (73) which is the ASA so i verified 2 way communication. I then created a WLAN instance on the controller with no security, clients can connect but are not getting any dhcp address so they can't browse. I logged into the controller and did a debug for dhcp events and packets and the controller sees the initial dhcp request, knows that it is for an external DHCP server and knows what the next hop is ( the ASA). However when I monitor the ASA I am not seeing any DHCP request. On the Interface I have the proxy set to global and it is pointing to the DHCP server. Any Ideas what I'm missing or where I'm going wrong?