Q7. Which one of the following types of traffic is sent securely over a CAPWAP tunnel by default?
A. Control messages
B. Client data
C. DHCP requests
D. 802.11 beacons
Correct Answer: A
CAPWAP (Control and Provisioning of Wireless Access Points): CAPWAP encapsulates the data between LAP and WLC within new IP packets. The tunneled data is then switched or routed over a campus network.
CAPWAP control messages: They are used to configure the AP and manage its operation. The control messages are authenticated and encrypted so the AP is securely controlled by only the appropriate WLC,then transported over the control tunnel. Only the CAPWAP(Control and Provisioning of Wireless Access Points) control tunnel is secured by default. Client data passes over the CAPWAP data tunnel, but is optionally encrypted. DHCP requests are client data and are not encrypted by default. Finally, 802.11 beacons are sent over the air from an LAP, so they are not encrypted or transported by CAPWAP.
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