I am looking for some assistance in configuring a Cisco 4402 WLC as an Anchor controller for guest wi-fi public Internet access through a corporate network. I have 2 4402s at the HQ site (one configured as the local WLC for the WAPs and one as the Anchor to the DMZ) and have WLC 2100s at multiple remote locations connected via the WAN. I have looked through a few configuration examples with screen shots from Cisco's website, but don't have it working yet. My first challenge is that guest clients are not even getting a DHCP address for the external DHCP server. Any help is appreciated.