iES12G
User’s
Manual
UM-iES12G-1.72.2-EN.docx
Pages 128 of 166
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System Configuration
Label
Description
Mode
Indicates if NAS is globally enabled or disabled on the switch. If globally
disabled, all ports are allowed to forward frames.
Reauthentication
Enabled
If checked, clients are re-authenticated after the interval specified by the Re-
authentication Period. Re-authentication for 802.1X-enabled ports can be used
to detect if a new device is plugged into a switch port.
For MAC-based ports, re-authentication is only useful if the RADIUS server
configuration has changed. It does not involve communication between the
switch and the client, and therefore does not imply that a client is still present on a
port (see Age Period below).
Reauthentication
Period
Determines the period, in seconds, after which a connected client must be re-
authenticated. This is only active if the
Re-authentication is Enabled
. Valid range
of the value is 1 to 3600 seconds.
EAPOL Timeout
Determines the time for retransmission of Request Identity EAPOL frames.
Valid range of the value is 1 to 65535 seconds. This has no effect for MAC-
based ports.
Aging Period
This setting applies to the following modes, i.e. modes using the
Port Security
functionality to secure MAC addresses:
M AC-Based Auth
.:
When the NAS module uses the Port Security module to secure MAC addresses,
the Port Security module needs to check for activity on the MAC address in
question at regular intervals and free resources if no activity is seen within a
given period of time. This parameter controls exactly this period and can be set to
a number between 10 and 1000000 seconds.
For ports in
MAC-based Auth.
mode, reauthentication does not cause direct
communications between the switch and the client, so this will not detect
whether the client is still attached or not, and the only way to free any
resources is to age the entry.
Hold Time
This setting applies to the following modes, i.e. modes using the
Port Security
functionality to secure MAC addresses:
M AC-Based Auth
.:
If a client is denied access - either because the RADIUS server denies the client
access or because the RADIUS server request times out (according to the timeout
specified on the "
Security
→
AAA
→
AAA"
page), the client is put on hold in
Unauthorized state. The hold timer does not count during an on-going
authentication.
The switch will ignore new frames coming from the client during the hold time.
The hold time can be set to a number between 10 and 1000000 seconds.
