Cisco AIR-AP1800I-Z-K9 Getting Started Manual - Page 23

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• An existing access point running software release 8.0.x.x or later has been reset after clearing the

configuration.

If any of these conditions are met and the access point has not yet joined a controller, you can also

configure a DHCP server to return a syslog server IP address to the access point using option 7 on the

server. The access point then starts sending all syslog messages to this IP address.

When the access point joins a controller for the first time, the controller sends the global syslog server

IP address (the default is 255.255.255.255) to the access point. After that, the access point sends all

syslog messages to this IP address until it is overridden by one of the following scenarios:

• The access point is still connected to the same controller, and the global syslog server IP address

configuration on the controller has been changed using the config ap syslog host global

syslog_server_IP_address command. In this case, the controller sends the new global syslog server

IP address to the access point.

• The access point is still connected to the same controller, and a specific syslog server IP address

has been configured for the access point on the controller using the config ap syslog host specific

Cisco_AP syslog_server_IP_address command. In this case, the controller sends the new specific

syslog server IP address to the access point.

• The access point is disconnected from the controller and joins another controller. In this case, the

new controller sends its global syslog server IP address to the access point.

• Whenever a new syslog server IP address overrides the existing syslog server IP address, the old

address is erased from persistent storage, and the new address is stored in its place. The access

point also starts sending all 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.

Important Information for Controller-based Deployments

Keep these guidelines in mind when you use 1800i series access points:

• The access point can only communicate with Cisco wireless LAN controllers.

• The access point does not support Wireless Domain Services (WDS) and cannot communicate with

WDS devices. However, the controller provides functionality equivalent to WDS when the access

point joins it.

• CAPWAP does not support Layer 2. The access point must get an IP address and discover the

controller using Layer 3, DHCP, DNS, or IP subnet broadcast.

• The access point console port is enabled for monitoring and debug purposes. All configuration

commands are disabled when the access point is connected to a controller.