Important Information For Controller-Based Deployments; Configuring Dhcp Option 43 - Cisco Catalyst 9166 Series Hardware Installation Manual

Troubleshooting
• The access point is still connected to the same controller, and the global syslog server IP address
• The access point is disconnected from the controller and joins another controller. In this case, the new
• Whenever a new syslog server IP address overrides the existing syslog server IP address, the old address
Note

Important Information for Controller-Based Deployments

Keep these guidelines in mind when you use Cisco CW9166I APs:
• The AP can only communicate with Cisco wireless controllers.
• The AP does not support Wireless Domain Services (WDS) and cannot communicate with WDS devices.
• CAPWAP does not support Layer 2. The AP must get an IP address and discover the controller using
• The AP console port is enabled for monitoring and debug purposes.
• All the configuration commands are disabled when the AP is connected to a controller.

Configuring DHCP Option 43

You can use DHCP Option 43 to provide a list of controller IP addresses to the access points, enabling them
to find and join a controller.
The following is a DHCP Option 43 configuration example on a Windows 2003 Enterprise DHCP server for
use with Cisco Catalyst lightweight access points. For other DHCP server implementations, see the product
documentation for configuring DHCP Option 43. In Option 43, you should use the IP address of the controller
management interface.
configuration on the controller has been changed using the syslog host <ip address> command. In this
case, the controller sends the new global syslog server IP address to the access point.
To configure the global syslog server IP address, run these commands:
1. configure terminal
2. ap profile ap-profile-name
3. syslog host syslog IP address
4. exit
controller sends its global syslog server IP address to the access point.
is erased from persistent storage, and the new address is stored in its place. The access point also starts
sending all the syslog messages to the new IP address, provided the access point can reach the syslog
server IP address.
You can configure the syslog server for access points and view the access point join information only
from the controller CLI.
However, the controller provides functionality equivalent to WDS when the AP joins it.
Layer 3, DHCP, DNS, or IP subnet broadcast.
Cisco Catalyst 9166 Series Wi-Fi 6E Access Point Hardware Installation Guide
Important Information for Controller-Based Deployments
29