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Chapter 18: 802.1x Port-based Network Access
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Guest VLAN An authenticator port in the unauthorized state typically accepts and
transmits only 802.1x packets while waiting to authenticate a client.
However, you can specify an authenticator port to be a member of a Guest
VLAN when no authenticated client is logged on. Any guest user using the
port is not required to log on and has full access to the resources of the
Guest VLAN.
If the switch receives 802.1x packets on the port, signalling that an
authenticated client is logging on, it moves the port to its predefined VLAN
and places it in the unauthorized state. The port remains in the
unauthorized state until the log on process between the authenticated
client and the RADIUS server is completed. When the authenticated client
logs off, the port automatically returns to the Guest VLAN.
Note
The Guest VLAN feature is only supported on an authenticator port
in the Single operating mode.