ZyXEL Communications NWA-3550, User Manual

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Chapter 5 Management Mode
NWA-3500/NWA-3550 User’s Guide
89
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
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.
SUBNET 1 SUBNET 2
AP
CONTROLLER
MANAGED
AP
DHCP
SERVER
+ OPTION 43
CAPWAP
TRAFFIC
(DYNAMIC
IP)
(STATIC IP)