Send a failed dot1x client to a restricted vlan – Brocade TurboIron 24X Series Configuration Guide User Manual

Page 987

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Brocade TurboIron 24X Series Configuration Guide

953

53-1003053-01

Configuring 802.1X port security

Syntax: [no] dot1x auth-timeout-action failure

Once the failure timeout action is enabled, use the no form of the command to reset the RADIUS
timeout behavior to retry.

NOTE

If restrict-vlan is configured along with auth-timeout-action failure, the user will be placed into a
VLAN with restricted or limited access.Refer to

“Allow user access to a restricted VLAN after a

RADIUS timeout”

on page 953.

Allow user access to a restricted VLAN after a RADIUS timeout

To set the RADIUS timeout behavior to bypass 802.1X authentication and place the user in a VLAN
with restricted or limited access, enter commands such as the following

TurboIron(config)#interface ethernet 1

TurboIron(config-if-e100-1)#dot1x auth-fail-action restrict-vlan 100

TurboIron(config-if-e100-1)#dot1x auth-timeout-action failure

Syntax: [no] dot1x auth-fail-action restrict-vlan [<vlan-id>]

Syntax: [no] dot1x auth-timeout-action failure

Send a failed Dot1X client to a restricted VLAN

In

Figure 119

, a VoIP phone sends both tagged and untagged traffic to dual-mode port e 3.

Assuming the VoIP phone is authenticated to a voice VLAN as tagged, a MAC session for the VoIP
phone is learned on the voice VLAN. In addition, since the phone sends untagged traffic, a MAC
session is also learned on the native untagged VLAN (based on the VLAN dual-mode configuration).

Use the auth-fail-force-restrict command to override the VoIP MAC session on the native VLAN, and
move the PVID for the port to the restricted VLAN. Future untagged traffic from both phone and
client establishes MAC sessions on the restricted VLAN, for restricted access.

This command is configured under the global dot1x-enable command as follows

TurboIron(config)#dot1x-enable

TurboIron(config-dot1x)#auth-fail-force-restrict

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