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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
Guest VLAN Operation
: When a Guest VLAN enabled port's link comes up, the switch starts transmitting
EAPOL Request Identity frames. If the number of transmissions of such frames exceeds Max. Reauth.
Count and no EAPOL frames have been received in the meanwhile, the switch considers entering the
Guest VLAN. The interval between transmissions of EAPOL Request Identity frames is configured with
EAPOL Timeout. If Allow Guest VLAN if EAPOL Seen is enabled, the port will now be placed in the Guest
VLAN.
If disabled, the switch will first check its history to see if an EAPOL frame has previously been received on
the port (this history is cleared if the port link goes down or the port's Admin State is changed), and if not,
the port will be placed in the Guest VLAN. Otherwise, it will not move to the Guest VLAN but continue
transmitting EAPOL Request Identity frames at the rate given by EAPOL Timeout.
Once in the Guest VLAN, the port is considered authenticated, and all attached clients on the port are
allowed access on this VLAN. The switch will not transmit an EAPOL Success frame when entering the
Guest VLAN.
While in the Guest VLAN, the switch monitors the link for EAPOL frames, and if one such frame is
received, the switch immediately takes the port out of the Guest VLAN and starts authenticating the
supplicant according to the port mode. If an EAPOL frame is received, the port will never be able to go
back into the Guest VLAN if "Allow Guest VLAN if EAPOL Seen" is disabled.
Port State:
The current state of the port. It can undertake one of the following values:
Globally Disabled
: NAS is globally disabled.
Link Down
: NAS is globally enabled, but there is no link on the port.
Authorized
: The port is in Force Authorized or a single-supplicant mode and the supplicant is authorized.
Unauthorized
: The port is in Force Unauthorized or a single-supplicant mode and the supplicant is not
successfully authorized by the RADIUS server.
X Auth/Y Unauth
: The port is in a multi-supplicant mode. Currently X clients are authorized and Y clients
are unauthorized.
Restart:
Two buttons are available for each row. The buttons are only enabled when authentication is
globally enabled and the port's Admin State is in an EAPOL-based or MAC-based mode. Clicking these
buttons will not cause settings changed on the page to take effect.
Re-authenticate
: Schedules a re-authentication whenever the quiet-period of the port runs out (EAPOL-
based authentication). For MAC-based authentication, re-authentication will be attempted immediately.
The button only has effect for successfully authenticated clients on the port and will not cause the clients
to get temporarily unauthorized.
Reinitialize
: Forces a re-initialization of the clients on the port and thereby a re-authentication
immediately. The clients will transfer to the unauthorized state while the re-authentication is in progress.
Buttons
:
Apply
– Click to save changes.
Reset -
Click to undo any changes made locally and revert to previously saved values.
Refresh:
Click to refresh the NAS Configuration manually.
Message
:
NAS Error The 802.1X Admin State must be set to Authorized for ports that are enabled for
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