The wireless controller can function as a DHCP server and assign IP addresses to both wireless and wired devices that are connected to it. You can add up to 64 DHCP server pools, each assigned to a different VLAN.
DHCP option 43 (vendor-specific information) must be enabled on an external DHCP server. Specifying an internal DHCP server on the wireless controller automatically enables DHCP option 43 with the IP address of the wireless controller.