185| Authentication Servers DellPowerConnect W- Series ArubaOS 6.2 | User Guide
server-group <group>
Accounting
You can configureacco untingfor R ADIUS and TACACS+ server groups.
NOTE:RADIUS or TACACS+ accountingis only supported when RADIUSor TACACS+ is used for authentication.

RADIUS Accounting

RADIUS accounting allows user activity and stati stics to be reported from the controller to RADIUS servers.
RADIUS accounting works as follows:
1. T hecontroller generates an Accounting Start packet when a userlogs in. The code field of transmitted RADIU S
packet is set to 4 (Accounting-Request).No te thats ensitive information,such user passwords, are nots entto
the accounting server.The RADI US serversends an acknowledgement of the packet.
2. T hecontroller sends an Accounting Stoppacket when a user logs off;the packet information includes various
statistics such as elapsed time, input and output bytes and packets. The RADIUS server sends an
acknowledgementof the packet.
The followingis t helist of attributes that the controller can sendt o a RADIUS accounting server:
lAcct-Status-Type: This attribute marks the beginning or end of accounting record for a user. Currently,possible
valuesi ncludeStart and Stop.
lUser-Name:Name of user.
lAcct-Session-Id: A unique identifier to facilitate matching of accounting records for a user.I t is derived from the
username, IP address and MAC address. This is set in all accounting packets.
lAcct-Authentic: This indicates how the userwas authenticated. Current valuesare 1 (RADI US),2 (Local) and 3
(LDAP).
lAcct-Session-Time: The elapsed time, in seconds, that the client was logged in to the controller. This is only sent
in Accounting-Request records wheret he Acct-Status-Type is Stop.
lAcct-Terminate-Cause:I ndicates how the session was terminated and is sent i n Accounting-Request records
wheret heA cct-Status-Type is Stop. Possible values are:
1: User logged off
4: Idle Timeout
5: Session Timeout. Maximum session length timer expired.
7: Admin Reboot: Administrator is ending service, for exampleprior to rebooting the controller.
lNAS-Identifier: This is set in the RA DIUS server configuration.
lNAS-IP-Address: IP address of the master controller.You can configure a “global” NAS IP address: in the WebUI,
navigate to the Configuration > Security > Authentication > Advanced page; in the CLI, use theip radius
nas-ipcommand.
lNAS-Port: Physical or virtual port (tunnel)number through which the usertraffic is entering the controller.
lNAS-Port-Type: Type of port used in the connection. This is set to one of the following:
n5: admin login
n15: wired user type
n19: wireless user
lFramed-IP-Address:IP address of the user.
lCalling-Station-ID:MA C addresso f the user.
lCalled-station-ID: MAC address of the controller.