---
title: MAC Filtering Configuration
slug: singleconnect-reference-guide-3-1-0/mac-filtering-configuration
description: Learn how to activate MAC filtering for 802.1x Authentication and restrict users to only defined MAC addresses. This document provides step-by-step instructions and screenshots for configuring MAC filtering in the Administration/RADIUS 802.1x Config scree
docTags: 
createdAt: 2022-08-01T12:33:45.000Z
---

If MAC addresses are defined for a user, that user can only use those MAC addresses. The same MAC address can be assigned to different users. Users cannot use undefined MAC addresses for RADIUS authentication. 

To activate MAC filtering while using 802.1x Authentication:

- Check the **MAC Filtering **box in the **Administration / RADIUS 802.1x Config** screen.

::Image[]{src="https://api.archbee.com/api/optimize/g9cApVza9NIhSh0pjZYtA/YR7myTStTploaaQ4vIrI9_image.png" size="74" width="855" height="430" caption="802.1x Mac Filtering" position="center" showCaption="true"}

1. Navigate to **Administration** > **MAC Filtering**.
2. Enter the username and user MAC Address to be allowed and click** Save.**



::Image[]{src="https://api.archbee.com/api/optimize/g9cApVza9NIhSh0pjZYtA/7ts-zLKWHddPKNZRTnRjT_image.png" size="74" width="855" height="426" caption="802.1x Mac Filtering" position="center" showCaption="true"}