IGPS-9080 Series User Manual
ORing Industrial Networking Corp
129
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 port-based
802.1X is that 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 do not 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 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.
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.
Reauthenticate
: schedules a reauthentication whenever the