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PLANET IGS-10020HPT User Manual

Page 264

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User’s Manual

several clients can be connected to the same port (e.g. through a 3rd party

switch or a hub) and still require individual authentication, and that the clients

don't need special supplicant software to authenticate. The advantage of

MAC-based authentication over 802.1X-based authentication is that the clients

don't need special supplicant software to authenticate. The disadvantage is that

MAC addresses can be spoofed by malicious users - equipment whose MAC

address is a valid RADIUS user can be used by anyone. Also, only the

MD5-Challenge method is supported. The maximum number of clients that can

be attached to a port can be limited using the Port Security Limit Control

functionality.

RADIUS-Assigned QoS

Enabled

When RADIUS-Assigned QoS is both globally enabled and enabled (checked)

for a given port, the switch reacts to QoS Class information carried in the

RADIUS Access-Accept packet transmitted by the RADIUS server when a

supplicant is successfully authenticated. If present and valid, traffic received on

the supplicant's port will be classified to the given QoS Class. If

(re-)authentication fails or the RADIUS Access-Accept packet no longer carries a

QoS Class or it's invalid, or the supplicant is otherwise no longer present on the

port, the port's QoS Class is immediately reverted to the original QoS Class

(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

RADIUS attributes used in identifying a QoS Class:

The User-Priority-Table attribute defined in RFC4675 forms the basis for

identifying the QoS Class in an Access-Accept packet.

Only the first occurrence of the attribute in the packet will be considered, and 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


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