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Configuration procedure
To configure an 802.1X Auth-Fail VLAN:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Ethernet interface
view.
interface interface-type
interface-number
N/A
3.
Configure the 802.1X
Auth-Fail VLAN on the port.
dot1x auth-fail vlan
authfail-vlan-id
By default, no 802.1X Auth-Fail
VLAN exists.
Configuring an 802.1X critical VLAN
Typically, when a client user is assigned to the 802.1X critical VLAN on a port, the device sends an
EAP-Failure packet to the client. For some specific 802.1X clients (for example, Windows built-in
802.1X clients), this mechanism causes reauthentication failure. After receiving an EAP-Failure
packet, such a client does not respond to the EAP-Request/Identity packet from the device when a
reachable authentication server is detected.
To solve this problem, configure the device to send EAP-Success packets for 802.1X user
assignment to the 802.1X critical VLAN. When a client receives an EAP-Success packet, it
determines that the 802.1X user comes online and it can respond to the EAP-Request/Identity
packet from the device for reauthentication.
Configuration guidelines
When you configure an 802.1X critical VLAN, follow these restrictions and guidelines:
•
Assign different IDs to the voice VLAN, the PVID, and the 802.1X critical VLAN on a port. The
assignment makes sure the port can correctly process VLAN-tagged incoming traffic.
•
You can configure only one 802.1X critical VLAN on a port. The 802.1X critical VLANs on
different ports can be different.
•
You cannot specify a VLAN as both a super VLAN and an 802.1X critical VLAN. For information
about super VLANs, see
Layer 2—LAN Switching Configuration Guide
.
Configuration prerequisites
Before you configure an 802.1X critical VLAN, complete the following tasks:
•
Create the VLAN to be specified as a critical VLAN.
•
If the 802.1X-enabled port performs MAC-based access control, perform the following
operations for the port:
{
Configure the port as a hybrid port.
{
Enable MAC-based VLAN on the port. For more information about MAC-based VLANs, see
Layer 2—LAN Switching Configuration Guide
.
{
Assign the port to the 802.1X critical VLAN as an untagged member.
Configuration procedure
To configure an 802.1X critical VLAN:
Содержание FlexFabric 5940 SERIES
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