Enable MAC address filtering
How to turn on mac address filtering
MAC address filtering (Media Access Control Address Filtering) is a network security measure that increases network security by limiting the MAC addresses of devices allowed to connect to the network. A MAC address is a unique identifier for a network device. By setting up MAC address filtering, you can prevent unauthorized devices from connecting to your network. In this article, we will introduce how to enable MAC address filtering in common operating systems.
1. Windows system
- Open the Control Panel: click the "Start" button and select "Control Panel".
- Find and open the Network and Sharing Center: Find the "Network and Internet" option in the Control Panel and select "Network and Sharing Center".
- Find and open the adapter settings: In the "Network and Sharing Center" interface, find the "Change Adapter Settings" option and click Open.
- Find and select the required connection: In the adapter settings interface, find the network connection for which you want to turn on MAC address filtering. Typically, this is a wireless connection.
- Open the network connection properties: Right-click the desired network connection and select "Properties".
- Open the network connection properties: In the pop-up properties window, select "Network Internet Protocol Version 4 (TCP/IPv4)", and then click "Properties".
- Open advanced settings: In the "Network Internet Protocol Version 4 (TCP/IPv4) Properties" window, click the "Advanced" button.
- Open MAC address settings: In the advanced settings window, select the "Network Address" tab.
- Turn on MAC address filtering: In the "Network Address" tab, select the "Only allow devices with the following MAC addresses to connect" option.
- Add MAC addresses of allowed devices: In the text box below, add the MAC addresses of the devices you allow to connect to your network, separating each address with a comma.
- Save settings: After completing the above operations, click the "OK" button to save the settings.
2. Mac system
- Open System Preferences: Click the Apple icon in the upper left corner of the screen and select "System Preferences".
- Open network settings: In the "System Preferences" window, find and click the "Network" option.
- Open advanced settings: In the network settings window, click the "Advanced" button at the bottom.
- Open hardware settings: In the advanced settings window, select the "Hardware" tab.
- View MAC address: In the "Hardware" tab, you can see the MAC address of the device currently connected to the network.
- Turn on MAC address filtering: In the "Hardware" tab, click the "Add ( )" button under "Known Networks" and select "Add New Hardware Address".
- Add the MAC addresses of allowed devices: In the pop-up window, enter the MAC addresses of the devices you allow to connect to the network, and click the "OK" button.
- Save settings: After completing the above operations, click "Apply" and close the window.
3. Router settings
- Open the router configuration interface: Access the router’s configuration interface by entering the router’s IP address. Normally, the router's default IP address is 192.168.1.1 or 192.168.0.1. You can find the correct IP address in the router's user manual or the manufacturer's website.
- Enter username and password: In the router configuration interface, enter your username and password to log in. By default, the username and password may be admin/admin or blank/blank (leave blank).
- Find the MAC address filtering settings: In the router configuration interface, find related options such as "Wireless Settings" or "Security Settings", and then find the "MAC Address Filtering" option.
- Enable MAC address filtering: In the MAC address filtering settings, select "On" or enable the MAC address filtering function.
- Add the MAC addresses of allowed devices: In the MAC address filtering settings, add the MAC addresses of the devices that you allow to connect to the network.
- Save settings: After completing the above operations, click the "Save" or "Apply" button to save the settings.
It should be noted that after MAC address filtering is turned on, only devices in the MAC address list can connect to the network. So, make sure to add the MAC addresses of all devices that need to connect to your network to the allowed list to avoid problems with not being able to connect. In addition, in order to ensure the security of the network, it is recommended to regularly check and update the MAC address filtering list, and delete or add the MAC addresses of new devices.
To summarize, turning on MAC address filtering is a simple and effective network security measure that, under certain circumstances, can help protect your network from unauthorized devices. As long as you follow the above steps to set up on different operating systems or routers, you can easily turn on the MAC address filtering function.
The above is the detailed content of Enable MAC address filtering. For more information, please follow other related articles on the PHP Chinese website!

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