Chapter 5 Management Mode
Note: The NWA can be a controller AP, standalone AP (default) or a CAPWAP managed AP.
5.2.1 CAPWAP Discovery and Management
The link between
1An AP in managed AP mode joins a wired network (receives a dynamic IP address).
2The AP sends out a management request, looking for an AP in CAPWAP AP controller mode.
3If there is an AP controller on the network, it receives the management request. If the AP controller is in Manual mode it adds the details of the AP to its Unmanaged Access Points list, and you decide which available APs to manage. If the AP is in Always Accept mode, it automatically adds the AP to its Managed Access Points list and provides the managed AP with default configuration information, as well as securely transmitting the DTLS
5.2.2CAPWAP and DHCP
CAPWAP managed APs must be Dynamic Host Configuration Protocol (DHCP) clients, supplied with an IP address by a DHCP server on your network.
Furthermore, the AP controller must have a static IP address; it cannot be a DHCP client.
5.2.3 CAPWAP and IP Subnets
By default, CAPWAP works only between devices with IP addresses in the same subnet (see the appendices for information on IP addresses and subnetting).
However, you can configure CAPWAP to operate between devices with IP addresses in different subnets by doing the following.
•Activate DHCP option 43 on your network’s DHCP server.
•Configure DHCP option 43 with the IP address of the CAPWAP AP controller on your network.
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