Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
OL-29704-01
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
dot1x mac-auth-bypass
dot1x mac-auth-bypass
Use the dot1x mac-auth-bypass interface configuration command on the switch stack or on a
standalone switch to enable the MAC authentication bypass feature. Use the no form of this command
to disable MAC authentication bypass feature.
dot1x mac-auth-bypass [eap]
no dot1x mac-auth-bypass
Syntax Description
Defaults MAC authentication bypass is disabled.
Command Modes Interface configuration
Command History
Usage Guidelines Unless otherwise stated, the MAC authentication bypass usage guidelines are the same as the
IEEE 802.1x authentication guidelines.
If you disable MAC authentication bypass from a port after the port has been authenticated with its MAC
address, the port state is not affected.
If the port is in the unauthorized state and the client MAC address is not the authentication-server
database, the port remains in the unauthorized state. However, if the client MAC address is added to the
database, the switch can use MAC authentication bypass to re-authorize the port.
If the port is in the authorized state, the port remains in this state until re-authorization occurs.
If an EAPOL packet is detected on the interface during the lifetime of the link, the switch determines
that the device connected to that interface is an IEEE 802.1x-capable supplicant and uses IEEE 802.1x
authentication (not MAC authentication bypass) to authorize the interface.
Clients that were authorized with MAC authentication bypass can be re-authenticated.
For more information about how MAC authentication bypass and IEEE 802.lx authentication interact,
see the “Understanding IEEE 802.1x Authentication with MAC Authentication Bypass” section and the
“IEEE 802.1x Authentication Configuration Guidelines” section in the “Configuring IEEE 802.1x
Port-Based Authentication” chapter of the software configuration guide.
eap (Optional) Configure the switch to use Extensible Authentication Protocol
(EAP) for authentication.
Release Modification
12.2(53)SE2 This command was introduced.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing