APs are able to search for their WLC in remote networks—a simple IP connection, such as via a VPN path, is all you need. As the WLCs only influence the WLAN part of the configuration in the AP, all other functions can be managed separately. This division of the configuration tasks makes WLCs ideal for establishing a company-wide WLAN infrastructure that is based at the headquarters and includes all of the branch and home offices connected to it.