Allied Telesis AT-8100L/8POE, User Manual

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AT-8100 Series Version 2.2.5.0 Web Interface User’s Guide
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
Authenticator Role:
The authenticator role activates port access control on a port. Ports in
this role do not forward network traffic to or from network devices until
the supplicants are authenticated by a RADIUS server. The
authenticator role is appropriate when you want the switch to
authenticate the supplicants of network devices before they can use
the network.
Figure 75 illustrates the none role and authenticator role.
Figure 75. Example of Port Roles
Operating Modes
Authenticator ports have three modes:

Single host mode
An authenticator port set to the single host mode permits only one
supplicant to log on and forwards only the traffic of that supplicant.
After one supplicant has logged on, the port discards packets from any
other supplicant.
In Figure 76, port 6 is an authenticator port set to the single host mode.
It permits only one supplicant to log on and forwards the traffic of only
that supplicant.
Figure 76. Single Host Mode
RADIUS
Authentication
Server
Authenticated
Authenticator role
None role
Supplicant
RADIUS
Authentication
Server
Authenticated Supplicant
Port 6
Role: Authenticator
Operating Mode: Single Host
Mode