We have an ASA 5510 running in a DMZ that is the DMZ firewall for our wireless network. We have added a new VLAN to the network to accomodate more users on the wireless network. This new VLAN for some reason cannot receive IP addresses from the DHCP server. Our first VLAN works fine, but our newly created one doesn't. We have DHCPrelay configured on the new VLAN, but do we need to configure it on the sub-interface as well?