Interlogix GE-DSSG-244-POE User Manual - Manual (Page 177)

IFS NS3601-24P/4S GE-DSSG-244 and 244-POE User Manual
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If a client that does not support 802.1X is connected to an unauthorized 802.1X port, the switch requests the client's identity. In this
situation, the client does not respond to the request, the port remains in the unauthorized state, and the client is not granted access
to the network.
In contrast, when an 802.1X-enabled client connects to a port that is not running the 802.1X protocol, the client initiates the
authentication process by sending the EAPOL-start frame. When no response is received, the client sends the request for a fixed
number of times. Because no response is received, the client begins sending frames as if the port is in the authorized state
If the client is successfully authenticated (receives an Accept frame from the authentication server), the port state changes to
authorized, and all frames from the authenticated client are allowed through the port. If the authentication fails, the port remains in
the unauthorized state, but authentication can be retried. If the authentication server cannot be reached, the switch can retransmit
the request. If no response is received from the server after the specified number of attempts, authentication fails, and network
access is not granted.
When a client logs off, it sends an EAPOL-logoff message, causing the switch port to transition to the unauthorized state.
If the link state of a port transitions from up to down, or if an EAPOL-logoff frame is received, the port returns to the unauthorized
state.
Authentication Configuration
This page allows you to configure how an administrator is authenticated when he logs into the switch via TELNET, SSH or the web
pages. The Authentication Method Configuration screen is shown
Figure 4-11-3 .
Figure 4-11-3 Authentication Method Configuration page screenshot
The page includes the following fields:
Object Description
• Client The management client for which the configuration below applies.
• Authentication Method Authentication Method can be set to one of the following values:
None
: authentication is disabled and login is not possible.
local : use the local user database on the switch stack for authentication.
radius : use a remote RADIUS server for authentication.
tacacs+ : use a remote TACACS+ server for authentication.
• Fallback Enable fallback to local authentication by checking this box.
If none of the configured authentication servers are alive, the local user database
is used for authentication.
This is only possible if the Authentication Method is set to something else than
'none or 'local'.
Buttons
: Click to save changes.
: Click to undo any changes made locally and revert to previously saved values.