Dell FCX624-I Laptop User Manual


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PowerConnect B-Series FCX Configuration Guide 1239
53-1002266-01
Configuring 802.1X port security
34
When an interface control type is set to auto, the controlled port is initially set to unauthorized, but
is changed to authorized when the connecting Client is successfully authenticated by an
Authentication Server.
The port control type can be one of the following
force-authorized – The controlled port is placed unconditionally in the authorized state, allowing all
traffic. This is the default state for ports on the Dell PowerConnect device.
force-unauthorized – The controlled port is placed unconditionally in the unauthorized state.
auto – The controlled port is unauthorized until authentication takes place between the Client and
Authentication Server. Once the Client passes authentication, the port becomes authorized. This
activates authentication on an 802.1X-enabled interface.
NOTE
You cannot enable 802.1X port security on ports that have any of the following features enabled:
Link aggregation
Metro Ring Protocol (MRP)
Mirror port
Trunk port
Configuring periodic re-authentication
You can configure the device to periodically re-authenticate Clients connected to 802.1X-enabled
interfaces. When you enable periodic re-authentication, the device re-authenticates Clients every
3,600 seconds by default. You can optionally specify a different re-authentication interval of
between 1 – 4294967295 seconds.
To configure periodic re-authentication using the default interval of 3,600 seconds, enter the
following command.
PowerConnect(config-dot1x)#re-authentication
Syntax: [no] re-authentication
To configure periodic re-authentication with an interval of 2,000 seconds, enter the following
commands.
PowerConnect(config-dot1x)#re-authentication
PowerConnect(config-dot1x)#timeout re-authperiod 2000
Syntax: [no] timeout re-authperiod <seconds>
The re-authentication interval is a global setting, applicable to all 802.1X-enabled interfaces. To
re-authenticate Clients connected to a specific port manually, use the dot1x re-authenticate
command. Refer to “Re-authenticating a port manually”, below.
Re-authenticating a port manually
When periodic re-authentication is enabled, by default the Dell PowerConnect device
re-authenticates Clients connected to an 802.1X-enabled interface every 3,600 seconds (or the
time specified by the dot1x timeout re-authperiod command). You can also manually
re-authenticate Clients connected to a specific port.