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Help information     MAC address filter function enables you to control the LAN computers’ access to the Internet. Please refer to the user guide for detailed usage.     Instructions: If you want to clear one configured item, select it and click the "Clear" button and then click "OK" to bring it into effect.     Forbid only: Only forbid the configured MAC to access the Internet.     Permit only: Only permit the configured MAC to access the Internet.     Note: When the time is set as 0:0~0:0,it means all time segments.