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Configuring IEEE 802.1x Port-Based Authentication
How to Configure IEEE 802.1x Port-Based Authentication
Configuring the Maximum Number of Authentication Attempts
Configuring Inaccessible Authentication Bypass
6. end Returns to privileged EXEC mode.
7. show authentication interface
interface-id
(Optional) Verifies your entries.
8. copy running-config startup-config (Optional) Saves your entries in the configuration file.
Command Purpose
Command Purpose
1. configure terminal Enters global configuration mode.
2. interface interface-id Specifies the port to be configured, and enters interface configuration
mode.
3. switchport mode access
or
switchport mode private-vlan host
Sets the port to access mode,
or
Configures the Layer 2 port as a private-VLAN host port.
4. authentication port-control auto Enables 802.1x authentication on the port.
5. authentication event fail action
authorize vlan-id
Specifies an active VLAN as an 802.1x restricted VLAN. The range is
1 to 4096.
You can configure any active VLAN except an internal VLAN (routed port),
an RSPAN VLAN, a primary private VLAN, or a voice VLAN as an 802.1x
restricted VLAN.
6. authentication event retry retry count Specifies a number of authentication attempts to allow before a port
moves to the restricted VLAN. The range is 1 to 3, and the default is 3.
7. end Returns to privileged EXEC mode.
8. show authentication interface
interface-id
(Optional) Verifies your entries.
9. copy running-config startup-config (Optional) Saves your entries in the configuration file.
Command Purpose
1. configure terminal Enters global configuration mode.
2. radius-server dead-criteria
time time tries tries
(Optional) Sets the conditions that are used to decide when a RADIUS server is
considered unavailable or dead.
The range for time is from 1 to 120 seconds. The switch dynamically determines the
default seconds value that is 10 to 60 seconds.
The range for tries is from 1 to 100. The switch dynamically determines the default
tries parameter that is 10 to 100.
3. radius-server deadtime
minutes
(Optional) Sets the number of minutes that a RADIUS server is not sent requests.
The range is from 0 to 1440 minutes (24 hours). The default is 0 minutes.
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