先确保添加了non-free软件源，然后终端输入apt install firmware-realtek重启。该包支持 * Realtek RTL8192E boot code (RTL8192E/boot.img) * Realtek RTL8192E init data (RTL8192E/data.img) * Realtek RTL8192E main code (RTL8192E/main.img) * Realtek RTL8192EE Bluetooth firmware (rtl_bt/rtl8192ee_fw.bin) * Realtek RTL8812AE Bluetooth firmware (rtl_bt/rtl8812ae_fw.bin) * Realtek RTL8761A Bluetooth firmware (rtl_bt/rtl8761a_fw.bin) * Realtek RTL8821A Bluetooth firmware (rtl_bt/rtl8821a_fw.bin) * Realtek RTL8192EU Bluetooth firmware (rtl_bt/rtl8192eu_fw.bin) * Realtek RTL8723AU rev A Bluetooth firmware (rtl_bt/rtl8723a_fw.bin) * Realtek RTL8723BU rev B Bluetooth firmware (rtl_bt/rtl8723b_fw.bin) * Realtek RTL8723D Bluetooth config (rtl_bt/rtl8723d_config.bin) * Realtek RTL8723D Bluetooth firmware (rtl_bt/rtl8723d_fw.bin) * Realtek RTL8821C Bluetooth config (rtl_bt/rtl8821c_config.bin) * Realtek RTL8821C Bluetooth firmware (rtl_bt/rtl8821c_fw.bin) * Realtek RTL8822B Bluetooth config (rtl_bt/rtl8822b_config.bin) * Realtek RTL8822B Bluetooth firmware (rtl_bt/rtl8822b_fw.bin) * Realtek RTL8822CU Bluetooth firmware (rtl_bt/rtl8822cu_fw.bin) * Realtek RTL8105E-1 firmware (rtl_nic/rtl8105e-1.fw) * Realtek RTL8106E-1 firmware, version 0.0.1 (rtl_nic/rtl8106e-1.fw) * Realtek RTL8106E-2 firmware, version 0.0.1 (rtl_nic/rtl8106e-2.fw) * Realtek RTL8107E-1 firmware, version 0.0.2 (rtl_nic/rtl8107e-1.fw) * Realtek RTL8107E-2 firmware, version 0.0.2 (rtl_nic/rtl8107e-2.fw) * Realtek RTL8111D-1/RTL8168D-1 firmware (rtl_nic/rtl8168d-1.fw) * Realtek RTL8111D-2/RTL8168D-2 firmware (rtl_nic/rtl8168d-2.fw) * Realtek RTL8168E-1 firmware (rtl_nic/rtl8168e-1.fw) * Realtek RTL8168E-2 firmware (rtl_nic/rtl8168e-2.fw) * Realtek RTL8168E-3 firmware, version 0.0.4 (rtl_nic/rtl8168e-3.fw) * Realtek RTL8168F-1 firmware, version 0.0.5 (rtl_nic/rtl8168f-1.fw) * Realtek RTL8168F-2 firmware, version 0.0.4 (rtl_nic/rtl8168f-2.fw) * Realtek RTL8168G-1 firmware, version 0.0.3 (rtl_nic/rtl8168g-1.fw) * Realtek RTL8168G-2 firmware, version 0.0.1 (rtl_nic/rtl8168g-2.fw) * Realtek RTL8168G-3 firmware, version 0.0.1 (rtl_nic/rtl8168g-3.fw) * Realtek RTL8168H-1 firmware, version 0.0.2 (rtl_nic/rtl8168h-1.fw) * Realtek RTL8168H-2 firmware, version 0.0.2 (rtl_nic/rtl8168h-2.fw) * Realtek RTL8402-1 firmware, version 0.0.1 (rtl_nic/rtl8402-1.fw) * Realtek RTL8411-1 firmware, version 0.0.3 (rtl_nic/rtl8411-1.fw) * Realtek RTL8411-2 firmware, version 0.0.1 (rtl_nic/rtl8411-2.fw) * Realtek RTL8188EE firmware (rtlwifi/rtl8188efw.bin) * Realtek RTL8188EU firmware (rtlwifi/rtl8188eufw.bin) * Realtek RTL8192CE/RTL8188CE firmware (rtlwifi/rtl8192cfw.bin) * Realtek RTL8192CE/RTL8188CE B-cut firmware (rtlwifi/rtl8192cfwU_B.bin) * Realtek RTL8188CE A-cut firmware, version 4.816.2011 (rtlwifi/rtl8192cfwU.bin) * Realtek RTL8192CU/RTL8188CU UMC A-cut firmware (rtlwifi/rtl8192cufw_A.bin) * Realtek RTL8192CU/RTL8188CU UMC B-cut firmware (rtlwifi/rtl8192cufw_B.bin) * Realtek RTL8192CU/RTL8188CU TMSC firmware (rtlwifi/rtl8192cufw_TMSC.bin) * Realtek RTL8192CU/RTL8188CU fallback firmware (rtlwifi/rtl8192cufw.bin) * Realtek RTL8192DE firmware (rtlwifi/rtl8192defw.bin) * Realtek RTL8192EE wifi firmware (rtlwifi/rtl8192eefw.bin) * Realtek RTl8192EU non-WoWLAN firmware (rtlwifi/rtl8192eu_nic.bin) * Realtek RTl8192EU WoWLAN firmware (rtlwifi/rtl8192eu_wowlan.bin) * Realtek RTL8192SE/RTL8191SE firmware, version 4.816.2011 (rtlwifi/rtl8192sefw.bin) * Realtek RTL8192SU/RTL8712U firmware (rtlwifi/rtl8712u.bin) * Realtek RTL8723AU rev A wifi-with-BT firmware (rtlwifi/rtl8723aufw_A.bin) * Realtek RTL8723AU rev B wifi-with-BT firmware (rtlwifi/rtl8723aufw_B.bin) * Realtek RTL8723AU rev B wifi-only firmware (rtlwifi/rtl8723aufw_B_NoBT.bin) * Realtek RTL8723BE firmware, version 36 (rtlwifi/rtl8723befw_36.bin) * Realtek RTL8723BE firmware (rtlwifi/rtl8723befw.bin) * Realtek RTL8723BS BT firmware (rtlwifi/rtl8723bs_bt.bin) * Realtek RTL8723BS wifi non-WoWLAN firmware (rtlwifi/rtl8723bs_nic.bin) * Realtek RTL8723BS wifi WoWLAN firmware (rtlwifi/rtl8723bs_wowlan.bin) * Realtek RTl8723BU non-WoWLAN firmware (rtlwifi/rtl8723bu_nic.bin) * Realtek RTl8723BU WoWLAN firmware (rtlwifi/rtl8723bu_wowlan.bin) * Realtek RTL8723DE firmware (rtlwifi/rtl8723defw.bin) * Realtek RTL8723AE rev B firmware (rtlwifi/rtl8723fw_B.bin) * Realtek RTL8723AE rev A firmware (rtlwifi/rtl8723fw.bin) * Realtek RTL8821AE firmware, version 29 (rtlwifi/rtl8821aefw_29.bin) * Realtek RTL8821AE firmware (rtlwifi/rtl8821aefw_wowlan.bin) * Realtek RTL8821AE firmware (rtlwifi/rtl8821aefw.bin) * Realtek RTL8822BE firmware (rtlwifi/rtl8822befw.bin)

此驱动为TL-WN821N在Debian 7 上的驱动源码（kali2.0可用） 不适用于window平台 下载后解压，用终端进入到Makefiles文件目录下，执行： make make install 即可驱动网卡设备