Dell PowerEdge M420 Configuration Manual page 521

Re-Authenticating Multiple Ports in the Dot1x Authentication Table
To reauthenticate multiple ports:
1 Open the Dot1x Authentication page.
2 Click Show All.
The Dot1x Authentication Table displays.
3 Check Edit to select the Units/Ports to re-authenticate.
4 To re-authenticate on a periodic basis, set Periodic Re-Authentication to
Enable, and specify a Re-Authentication Period for all desired ports.
5 To re-authenticate immediately, check Reauthenticate Now for all ports to
be re-authenticated.
6 Click Apply.
Specified ports are re-authenticated (either immediately or periodically),
and the device is updated.
Changing Administrative Port Control
To change the administrative port control:
1 Open the Dot1x Authentication page.
2 Click Show All.
The Dot1x Authentication Table displays.
3 Scroll to the right side of the table and select the Edit check box for each
port to configure. Change Admin Port Control to Authorized,
Unauthorized, or Automode as needed for chosen ports. Only MAC-
Based and Automode actually use 802.1X to authenticate. Authorized and
Unauthorized are manual overrides.
4 Click Apply.
Admin Port Control is updated for the specified ports, and the device is
updated.
Configuring 802.1X and Port-Based Security
521