Cisco wireless validating identity

(RADIUS authentication attributes are defined in RFC 2865.) Figure 6-1 illustrates how this process works.

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As previously mentioned, the authorization mechanism assembles a set of attributes that describes what the user is allowed to do within the network or service.A RADIUS client is usually referred to as a The RADIUS server receives user authentication requests and subsequently returns configuration information required for the client (in this case, the Cisco ASA) to support the specific service to the user.The RADIUS server does this by sending Internet Engineering Task Force (IETF) or vendor-specific attributes.This chapter provides a detailed explanation of the configuration and troubleshooting of authentication, authorization, and accounting (AAA) network security services that Cisco ASA supports.

AAA offers different solutions that provide access control to network devices.

TACACS uses port 49 for communication and allows vendors to use either User Datagram Protocol (UDP) or TCP encoding.