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You can enable accounting on the access point to send network accounting information about wireless client devices to a RADIUS server on your network. Cisco Secure ACS writes accounting records to a log file or to a database daily.

Settings

Enable Accounting

Select Enabled to turn on accounting for your wireless network.

Enable Delaying to Report Stop

Select this option to delay sending a stop report to the server when a client device disassociates from the access point. The delay reduces accounting activity for client devices that disassociate from the access point and then quickly reassociate.

Minimum Delay Time to Report Stop (sec.)

Enter the number of seconds the access point waits before sending a stop report to the server when a client device disassociates from the access point. The delay reduces accounting activity for client devices that disassociate from the access point and then quickly reassociate.

Server Name/IP

Enter the name or IP address of the server to which the access point sends accounting data.

Server Type

Select the server type from the pull-down menu. RADIUS is the only menu option; additional types will be added in future releases.

Port

The communication port setting used by the access point and the server. The default setting, 1813, is the correct setting for Cisco Aironet access points and Cisco secure ACS.

Shared Secret

Retran Int (sec.)

Enter the number of seconds the access point should wait before giving up contacting the server. If the server does not respond within this time, the access point tries to contact the next accounting server in the list if one is specified. The access point uses backup servers in list order when the previous server times out.

Max Retran

Enable Update

Check the Enable Update check box to enable accounting update messages for wireless clients. With updates enabled, the access point sends an accounting start message when a wireless client associates to the access point, sends updates at regular intervals while the wireless client is associated to the access point, and sends an accounting stop message when the client disassociates from the access point. With update disabled, the access point sends only accounting start and accounting stop messages to the server.

Update Delay

Enter the update interval in seconds. If you use 360, the default setting, the access point sends an accounting update message for each associated client device every 6 minutes.

Use Accounting Server For

Select the authentication types for which you want to collect accounting data. When you select EAP authentication, the access point sends accounting data to the server for client devices that authenticate using Cisco Aironet LEAP, EAP-TLS, or EAP-MD5. When you select non-EAP authentication, the access point sends data to the server for client devices using authentication types other than EAP, such as open, shared key, or MAC-based authentication.

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