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Enhancements in Release F.05.05 through F.05.70
Enhancements in Release F.05.05 through F.05.60
Operating Rules for Authorized-Client and Unauthorized-Client VLANs
Condition Rule
Static VLANs used as Authorized-
Client or Unauthorized-Client VLANs
These must be configured on the switch before you configure an
802.1X authenticator port to use them. (Use the vlan < vlan-id >
command or the VLAN Menu screen in the Menu interface.)
VLAN Assignment Received from a
RADIUS Server
If the RADIUS server specifies a VLAN for an authenticated supplicant
connected to an 802.1X authenticator port, this VLAN assignment
overrides any Authorized-Client VLAN assignment configured on the
authenticator port. This is because both VLANs are untagged, and the
switch allows only one untagged VLAN membership per-port. For
example, suppose you configured port 4 to place authenticated suppli-
cants in VLAN 20. If a RADIUS server authenticates supplicant “A”
and assigns this supplicant to VLAN 50, then the port can access VLAN
50 for the duration of the client session. When the client disconnects
from the port, then the port drops these assignments and uses only
the VLAN memberships for which it is statically configured.
Temporary VLAN Membership During
a Client Session
• Port membership in a VLAN assigned to operate as the
Unauthorized-Client VLAN is temporary, and ends when the client
receives authentication or the client disconnects from the port,
whichever is first.
• Port membership in a VLAN assigned to operate as the Authorized-
Client VLAN is also temporary, and ends when the client
disconnects from the port.If a VLAN assignment from a RADIUS
server is used instead, the same rule applies.
Effect of Unauthorized-Client VLAN
session on untagged port VLAN
membership
• When an unauthenticated client connects to a port that is already
configured with a static, untagged VLAN, the switch temporarily
moves the port to the Unauthorized-Client VLAN (also untagged).
(While the Unauthorized-Client VLAN is in use, the port does not
access the static, untagged VLAN.)
• When the client either becomes authenticated or disconnects, the
port leaves the Unauthorized-Client VLAN and reacquires its
untagged membership in the statically configured VLAN.
Effect of Authorized-Client VLAN
session on untagged port VLAN
membership.
• When a client becomes authenticated on a port that is already
configured with a static, untagged VLAN, the switch temporarily
moves the port to the Authorized-Client VLAN (also untagged).
While the Authorized-Client VLAN is in use, the port does not have
access to the statically configured, untagged VLAN.
• When the authenticated client disconnects, the switch removes the
port from the Authorized-Client VLAN and moves it back to the
untagged membership in the statically configured VLAN.