Chapter 5 Management Mode
DHCP Option 43 allows the CAPWAP management request (from the AP in managed AP mode) to reach the AP controller in a different subnet, as shown in the following figure.
Figure 57 CAPWAP and DHCP Option 43
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AP
CONTROLLER (STATIC IP)
MANAGED
AP
(DYNAMIC
IP)
5.2.4 Notes on CAPWAP
This section lists some additional features of ZyXEL’s implementation of the CAPWAP protocol.
•When the AP controller uses its internal Remote Authentication Dial In User Service (RADIUS) server, managed APs also use the AP controller’s authentication server to authenticate wireless clients.
•Only one AP controller can exist in any single broadcast domain.
•If a managed AP’s link to the AP controller is broken, the managed AP continues to use the wireless settings with which it was last provided.
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