Chapter 4 Management Mode
4.1.1 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.
4.1.2CAPWAP and DHCP
CAPWAP managed APs must be 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.
4.1.3 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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