Specifications

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Catalyst 4500 Se ries S wit ch C is co IO S C om mand R efer ence —Re lease I OS XE 3 .3.0 XO(1 5.1 (1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
dot1x control-direction
dot1x control- direction
To enable unidirectional port control on a per-port basis on a switch, us e the dot1x control-direction
command . Use th e no form of this command to disable unidirectional port control.
dot1x control-direction [in | both]
no dot1x control-direction
Syntax Description
Defaults Both in-bound and out -bound traffic will be controlled.
Command Modes Interface configur ation mode
Usage Guidelines You can manage remote systems using unidirectional control. Unidirectional control enables you to turn
on systems remotely using a specific Ethernet packet, known as a magic packet.
Using unidirectional control enables you to remotely man age systems using 802.1X ports. In the past,
the port became unauthorized after the systems was turned off. In this state, the port only allowed the
receipt and transmission of EAPoL packets. Therefore, there was no way for the unidirectional control
magic packet to reach the host and without be ing turned on there was no wa y for the system to
authenticate and open the port.
Examples This example shows how to enable unidirectional control on incoming packets:
Switch(config-if)# dot1x control-direction in
Switch(config-if)#
Related Commands
in (Optional ) Specifies controll ing in-bound traffic on a port .
both (Optional) Specifies controlling both in-bound and out-bound traffic on a
port.
Command Description
show dot1x Displays dot1x information.