---
title: MAC Filtering Configuration
slug: singleconnect-reference-guide-3-3-0/mac-filtering-configuration
description: Learn how to activate MAC filtering for RADIUS authentication and assign specific MAC addresses to users in this document. Simply check the MAC Filtering box in the Administration/RADIUS 802.1x Config screen and enter the username and user MAC Address in 
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"}