To configure a WLC, what is the first information you need to enter?

When configuring a Wireless LAN Controller (WLC), the first piece of information required is the Management Interface IP Address. This address is crucial as it allows network administrators to access and manage the WLC through the network. The Management Interface provides the means to connect to the WLC for further configuration and monitoring of the wireless network.

Setting the Management Interface IP Address ensures that the WLC can communicate with other devices on the network and that administrators can reach the controller for management tasks. Once this is configured, the other aspects such as the administrative username, system name, and SSID can be addressed, but the Management Interface IP Address is foundational to establishing communication with the WLC itself.