C
HAPTER
23
| Authentication Commands
802.1X Port Authentication
– 650 –
dot1x port-control This command sets the dot1x mode on a port interface. Use the no form to
restore the default.
SYNTAX
dot1x port-control {auto | force-authorized |
force-unauthorized}
no dot1x port-control
auto – Requires a dot1x-aware connected client to be authorized by
the RADIUS server. Clients that are not dot1x-aware will be denied
access.
force-authorized – Configures the port to grant access to all
clients, either dot1x-aware or otherwise.
force-unauthorized – Configures the port to deny access to all
clients, either dot1x-aware or otherwise.
DEFAULT
force-authorized
COMMAND MODE
Interface Configuration
EXAMPLE
Console(config)#interface eth 1/2
Console(config-if)#dot1x port-control auto
Console(config-if)#
dot1x
re-authentication
This command enables periodic re-authentication for a specified port. Use
the no form to disable re-authentication.
SYNTAX
[no] dot1x re-authentication
COMMAND MODE
Interface Configuration
COMMAND USAGE
◆ The re-authentication process verifies the connected client’s user ID
and password on the RADIUS server. During re-authentication, the
client remains connected the network and the process is handled
transparently by the dot1x client software. Only if re-authentication
fails is the port blocked.
â—† The connected client is re-authenticated after the interval specified by
the dot1x timeout re-authperiod command. The default is 3600
seconds.
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