C
OMMAND

L

INE

I

NTERFACE

3-44

Command Mode

Privileged Exec

Example

Port Authentication Commands

The switch supports IEEE 802.1x (dot1x) port-based access control

that prevents unauthorized access to the network by requiring

users to first enter a user ID and password for authentication.

Client authentication is controlled centrally by a RADIUS server

using EAPOL (Extensible Authentication Protocol O ver LAN).

Console#show radius-server
Server IP address: 10.1.0.99
Communication key with radius server:
Server port number: 1812
Retransmit times: 2
Request timeout: 5
Console#
Command Function Mode Page
authentication
dot1x
Enables authentication on all switch
ports by setting the dot1x mode to
“Auto”
GC 3-45
dot1x default Resets all dot1x parameters to their
default values
GC 3-46
dot1x max-req Sets the maximum number of requests
the switch can send for the
authentication process before starting
the process again
GC 3-46
dot1x port-control Sets dot1x mode for a port interface IC 3-47
dot1x
re-authenticate
Forces a re-authentication on specific
ports
PE 3-48
dot1x
re-authentication
Enables re-authentication for all ports GC 3-48