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You can view join-related information for the following numbers of access points:

• Up to 300 access points for 4400 series controllers, the Cisco WiSM, and the Catalyst 3750G

Integrated Wireless LAN Controller Switch

• Up to three times the maximum number of access points supported by the platform for the 2100

series controllers and the Controller Network Module within the Cisco 28/37/38xx Series

Integrated Services Routers

When the controller is maintaining join-related information for the maximum number of access points,

it does not collect information for any more access points.

An access point sends all syslog messages to IP address 255.255.255.255 by default when any of the

following conditions are met:

• An access point running software release 5.2 or later has been newly deployed.

• An existing access point running software release 5.2 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.

A detailed explanation of the join process is on Cisco.com at the following URL:

http://www.Cisco.com/en/US/products/ps6366/products_tech_note09186a00808f8599.shtml