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README.md
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README.md
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# rtl8188eu
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Realtek RTL8188EU Wireless Lan Driver for Linux
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-----
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## rtl8188eu (8188eu.ko)
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## Realtek RTL8188EU Wireless Lan Driver for Linux
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- v5.13.3 (20210615)
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- Based on EDIMAX EW-7811Un V2 Linux Driver (Version : 1.0.1.3) 2021-10-01
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- Support Kernel: 3.8 - 5.4 (Realtek)
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- Support up to Kernel 5.14 (k5.15 added but not tested yet)
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## Specification
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- Supported interface modes:
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* IBSS
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* managed
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* AP
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* monitor
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* P2P-client
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* P2P-GO
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- Packet injection
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- TX power control
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- LED control
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- Power saving control
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- Driver debug log level control
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- Security:
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* WEP 64/128-bit, WPA, WPA2, and WPA3
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## Tested Linux Distros and Tools
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Successful tested injection `aireplay-ng -9 <interface>`, deauthentication `aireplay-ng -0 1 -a <bssid> <interface>`.
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Successful hcxdumptool driver test `hcxdumptool -i <interface> --check_driver` and capture packets `hcxdumptool -i <interface> -o test.pcapng --filterlist_ap=targets.lst --filtermode=2 --enable_status=15` `(hcxdumptool -i <interface> -o test.pcapng --filterlist=targets.lst --filtermode=2 --enable_status=15)`.
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Connecting to AP with WPA3 (WPA3-SAE) authentication method (IMPORTANT: Network Manager, is not support WPA3 on this driver. Connecting with wpa_supplicant).
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Start WPA3 (WPA3-SAE) SoftAP.
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TX power control tested with SoftAP mode and OpenWrt firmware (OpenWrt 21.02.0 r16279-5cc0535800, Channel Analysis Feature).
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- Ubuntu 11.10 (kernel 3.0)
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* Aircrack-ng 1.5.2
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* hcxdumptool 4.2.1
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- Ubuntu 12.04 (kernel 3.4)
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* Aircrack-ng 1.5.2
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* hcxdumptool 4.2.1
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- Ubuntu 12.10 (kernel 3.5)
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* Aircrack-ng 1.5.2
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* hcxdumptool 4.2.1
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- Ubuntu 13.04 (kernel 3.8)
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* Aircrack-ng 1.5.2
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* hcxdumptool 5.1.4
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- Ubuntu 21.04 (kernel 5.11)
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* wpa_supplicant v2.10-devel-hostap_2_9-2374-g9ef8491d9
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* Aircrack-ng 1.6
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* hcxdumptool 6.1.6
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- Ubuntu 21.10 (kernel 5.13)
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* Aircrack-ng 1.6
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* wpa_supplicant v2.10-devel-hostap_2_9-2398-g8a54c252a
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* hostapd v2.10-devel-hostap_2_9-2398-g8a54c252a
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- Kali Linux 2019.1a (kernel 4.19)
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* Aircrack-ng 1.5.2
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* hcxdumptool 5.1.7
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* wpa_supplicant v2.10-devel-hostap_2_9-2433-g8d881d942
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- Kali Linux 2020.3 (kernel 5.9)
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* Aircrack-ng 1.6
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* hcxdumptool 6.1.4
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* wpa_supplicant v2.10-devel-hostap_2_9-2379-g4775a5f82
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- Kali Linux 2021.3a (kernel 5.14)
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* Aircrack-ng 1.6
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* hcxdumptool 6.1.6
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* wpa_supplicant v2.10-devel-hostap_2_9-2433-g8d881d942
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## HOW TO
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### Install
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Download source
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```
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git clone https://github.com/ivanovborislav/rtl8188eu.git
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cd rtl8188eu
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```
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Install missing packages:
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```
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sudo apt-get install bc build-essential
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```
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Install linux headers:
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```
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sudo apt-get install linux-headers-$(uname -r)
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```
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or
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```
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apt-cache search linux-headers
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sudo apt-get install linux-headers-5.14.0-kali4-amd64 (for example)
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apt-cache search linux-image
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sudo apt-get install linux-image-5.14.0-kali4-amd64 (for example)
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```
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Compile:
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```
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make
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sudo make install
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```
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IMPORTANT: Prevent loading old driver r8188eu.
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```
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echo "blacklist r8188eu" > /etc/modprobe.d/realtek.conf
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```
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### Monitor mode
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```
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sudo airmon-ng check kill
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sudo ip link set <interface> down
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sudo iw dev <interface> set type monitor
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sudo ip link set <interface> up
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```
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### Managed mode
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```
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sudo ip link set <interface> down
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sudo iw dev <interface> set type managed
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sudo ip link set <interface> up
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sudo systemctl restart NetworkManager (sudo service network-manager restart)
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```
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### TX power control
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Note: Set TX power before start SoftAP mode. `...set txpower fixed 3000 = txpower 30.00 dBm`.
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```
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sudo iw dev <interface> set txpower fixed 3000
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```
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### Driver options
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#### Change driver options during inserting driver module
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Remove (unload) a module from the Linux kernel.
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```
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sudo rmmod /lib/modules/$(uname -r)/kernel/drivers/net/wireless/8188eu.ko
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```
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Insert (load) a module into the Linux kernel.
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```
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sudo insmod /lib/modules/$(uname -r)/kernel/drivers/net/wireless/8188eu.ko rtw_ips_mode=1 rtw_drv_log_level=4 rtw_power_mgnt=2 rtw_led_ctrl=1
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```
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#### Change driver options loading from file
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Create file `8188eu.conf` containing `options 8188eu rtw_ips_mode=1 rtw_drv_log_level=4 rtw_power_mgnt=2 rtw_led_ctrl=1`.
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Copy a file to `/etc/modprobe.d/` directory.
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```
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sudo cp -f 8188eu.conf /etc/modprobe.d
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```
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Power saving control.
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IPS (Inactive Power Saving) Function, rtw_ips_mode=
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```
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0:Disable IPS
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1:Enable IPS (default)
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```
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LPS (Leisure Power Saving) Function, rtw_power_mgnt=
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```
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0:Disable LPS
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1:Enable LPS
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2:Enable LPS with clock gating (default)
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```
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Driver debug log level control, rtw_drv_log_level=
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```
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0:_DRV_NONE_
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1:_DRV_ALWAYS_
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2:_DRV_ERR_
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3:_DRV_WARNING_
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4:_DRV_INFO_ (default)
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5:_DRV_DEBUG_
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6:_DRV_MAX_
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```
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Driver LED control, rtw_led_ctrl=
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```
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0:Always off
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1:Normal blink (default)
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2:Always on
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```
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### Connecting with wpa_supplicant
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Example wpa_supplicant.conf with WPA3-Personal (WPA3-SAE).
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```
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ctrl_interface=/var/run/wpa_supplicant
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update_config=1
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country=EN
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p2p_no_group_iface=1
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sae_groups=19 20 21
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network={
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ssid="WPA3"
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proto=RSN
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key_mgmt=SAE
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pairwise=CCMP
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group=CCMP
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ieee80211w=2
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psk="1234567890"
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}
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```
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Now start...
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```
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sudo killall wpa_supplicant
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sudo wpa_supplicant -B -i <interface> -c wpa_supplicant.conf
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sudo dhclient <interface>
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```
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### Start SoftAP mode
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Example hostapd.conf with WPA3-Personal (WPA3-SAE).
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```
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ctrl_interface=/var/run/hostapd
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ctrl_interface_group=0
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driver=nl80211
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ssid=WPA3
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country_code=EN
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channel=6
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beacon_int=100
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dtim_period=1
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fragm_threshold=2346
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rts_threshold=2347
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hw_mode=g
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ieee80211n=1
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max_num_sta=16
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wmm_enabled=1
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ht_capab=[HT40-][SHORT-GI-20][SHORT-GI-40][RX-STBC1][MAX-AMSDU-7935][DSSS_CCK-40]
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ignore_broadcast_ssid=0
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auth_algs=1
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wpa=2
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wpa_key_mgmt=SAE
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wpa_pairwise=CCMP
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rsn_pairwise=CCMP
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ieee80211w=2
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sae_groups=19 20 21
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sae_require_mfp=1
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wpa_passphrase=1234567890
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```
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Now start...
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```
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sudo killall hostapd
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sudo hostapd -i <interface> hostapd.conf
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```
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## Test devices
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- TP-Link TL-WN722N V3
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- Linksys WRT1200AC V2
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* OpenWrt 21.02.0 r16279-5cc0535800 / LuCI openwrt-21.02 branch git-21.231.26241-422c175
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```
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config wifi-iface 'default_radio1'
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option device 'radio1'
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option network 'lan'
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option mode 'ap'
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option macaddr '30:23:03:XX:XX:XX'
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option ssid 'WPA3'
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option encryption 'sae'
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option key '1234567890'
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option ieee80211w '2'
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```
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-----
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