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KVM over IP User Manual
to be valid, it must follow this rule:
• All 8 octets in the attribute's value must be identical and consist of ASCII
characters in the range '0' - '7', which translates into the desired QoS Class in
the range [0; 7].
RADIUS-Assigned VLAN Enabled:
When RADIUS-Assigned VLAN is both globally enabled and enabled
(checked) for a given port, the switch reacts to VLAN ID information carried
in the RADIUS Access-Accept packet transmitted by the RADIUS server
when a supplicant is successfully authenticated. If present and valid, the port's
Port VLAN ID will be changed to this VLAN ID, the port will be set to be a
member of that VLAN ID, and the port will be forced into VLAN unaware
mode. Once assigned, all traffic arriving on the port will be classified and
switched on the RADIUS-assigned VLAN ID.
If (re-)authentication fails or the RADIUS Access-Accept packet no longer
carries a VLAN ID or it's invalid, or the supplicant is otherwise no longer
present on the port, the port's VLAN ID is immediately reverted to the original
VLAN ID (which may be changed by the administrator in the meanwhile
without affecting the RADIUS-assigned).
This option is only available for single-client modes, i.e.
• Port-based 802.1X
• Single 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.
RADIUS attributes used in identifying a VLAN ID:
RFC2868 and RFC3580 form the basis for the attributes used in identifying a
VLAN ID in an Access-Accept packet. The following criteria are used:
• 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].
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