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User Manual
3onedata proprietary and confidential
Copyright © 3onedata Co., Ltd.
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behalf of clients. The initial frame (any kind of frame) sent by a client is snooped
by the switch, which in turn uses the client's MAC address as both username and
password in the subsequent EAP exchange with the RADIUS server. The 6-byte
MAC address is converted to a string on the following form "xx-xx-xx-xx-xx-xx",
that is, a dash (-) is used as separator between the lower-cased hexadecimal digits.
The switch only supports the MD5-Challenge authentication method, so the
RADIUS server must be configured accordingly.
When authentication is complete, the RADIUS server sends a success or failure
indication, which in turn causes the switch to open up or block traffic for that
particular client, using the Port Security module. Only then will frames from the
client be forwarded on the switch. There are no EAPOL frames involved in this
authentication, and therefore, MAC-based Authentication has nothing to do with
the 802.1X standard.
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.
Port Status
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.
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.