What Is Aaa; What Is Radius - ZyXEL Communications SBG3300 series User Manual

required, No access allowed and Authentication
required?
No authentication required—disables 802.1X and causes the port to transition to the
authorized state without any authentication exchange required. The port transmits
and receives normal traffic without 802.1X-based authentication of the client.
No access allowed—causes the port to remain in the unauthorized state, ignoring all
attempts by the client to authenticate. The switch cannot provide authentication
services to the client through the interface.
Authentication required—enables 802.1X and causes the port to begin in the
unauthorized state, allowing only EAPOL frames to be sent and received through the
port. The authentication process begins when the link state of the port transitions
from down to up, or when an EAPOL-start frame is received. The switch requests the
identity of the client and begins relaying authentication messages between the client
and the authentication server. Each client attempting to access the network is
uniquely identified by the switch by using the client's MAC address.

What is AAA?

AAA is the acronym for Authentication, Authorization, and Accounting and refers to
the idea of managing subscribers by controlling their access to the network, verifying
that they are who they say they are (via login name and password or MAC address)
and accounting for their network usage.

What is RADIUS?

RADIUS stands for Remote Authentication Dial-In User Service. RADIUS is a standard
that has been implemented into several software packages and networking devices.
It allows user information to be sent to a central database running on a RADIUS
server, where it is verified. RADIUS also provides a mechanism for accounting.