LDAP is being utilized throughout the Company Wireless network. Which issue or set of
issues does the Lightweight Access Point Protocol (LWAPP) address?
A.
Reduction of processing in wireless controllers
B.
Distributed approach to authentication, encryption, and policy enforcement
C.
Access point discovery, information exchange, and configuration
D.
Provides security by blocking communication between access points and wireless clients
E.
None of the other alternatives apply.
Explanation:
The control traffic between the access point and the controller is encapsulated with the
LWAPP. The control traffic is encrypted via the Advanced Encryption Standard (AES).
The data traffic between the access point and controller is also encapsulated with LWAPP.
The data traffic is not encrypted. It is switched at the WLAN controller, where VLAN tagging
and quality of service (QoS) are also applied.
Lightweight access points first search for a WLAN controller using LWAPP in Layer 2 mode.
Then the access point searches for a WLAN in Layer 3 mode.
The access point requests an IP address via DHCP. The access point then sends a LWAPP
discovery request to the management IP address of the WLAN controller via a broadcast.
The WLAN controller responds with a discovery response from the manager IP address.
This response includes the number of access points that are currently associated to that
access point manager interface and the access point manager IP address.
The access point chooses the access point manager with the least number of associated
access points and sends the join request.
All subsequent LWAPP communication is done to the access point manager IP address of
the WLAN controller.
•Real-timeframe exchange and certain real-time portions of MAC management are
accomplished within the access point.
•Authentication, security management, and mobility are handled by WLAN controllers.
•Data and control messages are exchanged between the access point and the WLAN
controller using LWAPP.
•Control messages are encrypted.
•All client data traffic is sent via the WLAN controller.