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A wireless LAN controller (WLC) is a network device used to monitor and manage wireless access points in an organization. WLCs are connected to routers and allow devices from across the organization to connect to the router via access points.
A wireless intrusion detection system (WIDS) monitors the radio spectrum for the presence of unauthorized, rogue access points and the use of wireless attack tools. The system monitors the radio spectrum used by wireless LANs, and immediately alerts a systems administrator whenever a rogue access point is detected.
The NFC Forum has developed a specific wireless charging specification, known as NFC Wireless Charging (WLC), which allows devices to charge with up to 1W of power over distances of up to 2 cm (3 ⁄ 4 in). [17] This capability is especially suitable for smaller devices like earbuds, wearables, and other compact Internet of Things (IoT) appliances.
The state machine of CAPWAP is similar to LWAPP's, but with the addition of a full Datagram Transport Layer Security (DTLS) tunnel establishment. The standard provides configuration management and device management, allowing for configurations and firmware to be pushed to access points (APs).
Wireless access has special security considerations. Many wired networks base the security on physical access control, trusting all the users on the local network, but if wireless access points are connected to the network, anybody within range of the AP (which typically extends farther than the intended area) can attach to the network.
Cisco Wireless LAN Controller Configuration Guide, Release 4.0; Steven J. Vaughan-Nichols (August 22, 2003). "LWAPP: Standardizing Centralized Wi-Fi Management". Wi-Fi Planet. Archived from the original on 2008-12-03. Lightweight Access Point Protocol IETF Standard ; Control And Provisioning of Wireless Access Points (CAPWAP)Protocol Specification
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