If HWTACACS authentication and authorization are used, users' authentication, authorization, and accounting information needs to be configured on the HWTACACS server.
If a user wants to establish a connection with the access device through a network to obtain rights to access other networks and network resources, the access device transparently transmits the user's authentication, authorization, and accounting information to the HWTACACS server. The HWTACACS server determines whether the user can pass authentication based on the configured information. If the user passes the authentication, the RADIUS server sends an Access-Accept packet containing the user's authorization information to the access device. The access device then allows the user to access the network and grants rights to the user based on information in the Access-Accept packet.