MAC address authentication controls a user's network access rights based on the user's interface and MAC address. The user does not need to install any client software. The device starts authenticating a user when detecting the user's MAC address for the first time on the interface where MAC address authentication has been enabled. During the authentication process, the user does not need to enter a user name or password. For details, please refer to
http://support.huawei.com/hedex/hdx.do?docid=EDOC1100035140&id=dc_cfg_nac_2005u_1