OPTICAL SYSTEMS DESIGN
DOC ID: 10118101
OSD2512 OPERATOR MANUAL
PAGE 98
• The
Tunnel-Medium-Type
,
Tunnel-Type
, and
Tunnel-Private-Group-ID
attributes must all be present at least once in the Access-Accept packet.
• The switch looks for the first set of these attributes that have the same
Tag
value and fulfil
the following requirements (if
Tag
== 0 is used, the
Tunnel-Private-Group-ID
does
not need to include a
Tag
):
- Value of
Tunnel-Medium-Type
must be set to "IEEE-802" (ordinal 6).
- Value of
Tunnel-Type
must be set to "VLAN" (ordinal 13).
- Value of
Tunnel-Private-Group-ID
must be a string of ASCII chars in the range '0'
- '9', which is interpreted as a decimal string representing the VLAN ID. Leading '0's are
discarded. The final value must be in the range [1; 4095].
Guest VLAN Enabled
When Guest VLAN is both globally enabled and enabled (checked) for a given port, the
switch considers moving the port into the Guest VLAN according to the rules outlined below.
This option is only available for EAPOL-based modes, i.e.:
• Port-based 802.1X
• Single 802.1X
• Multi 802.1X
For trouble-shooting VLAN assignments, use the "Monitor→VLANs→VLAN Membership
and VLAN Port" pages. These pages show which modules have (temporarily) overridden the
current Port VLAN configuration.
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 transmission 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 the "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 are unauthorized.
