Arch Linux

hulacorn

Member

Registered: 2022-03-26

Posts: 1

rtl8188ftv does not show on ifconfig and does not support monitor mode

Hi! I'm new in here, and recently installed ARCH on my machine. And there is a problem with wifi adapter

When i plugged in my wifi adapter

 Realtek Semiconductor Corp. RTL8188FTV 802.11b/g/n 1T1R 2.4G WLAN Adapter 

it is not working on MONITOR mode. Here is some outputs:

 lsusb 

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bluetooth wireless interface
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 002: ID 5986:06b1 Acer, Inc EasyCamera
Bus 001 Device 007: ID 0bda:f179 Realtek Semiconductor Corp. RTL8188FTV 802.11b/g/n 1T1R 2.4G WLAN Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

 iwconfig 
lo        no wireless extensions.

enp2s0    no wireless extensions.

wlp3s0    IEEE 802.11  ESSID:"Behzod's Galaxy A30"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: AE:FF:98:86:17:BB   
          Bit Rate=72.2 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=70/70  Signal level=-39 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:73   Missed beacon:0

wlp0s21f0u1  unassociated  ESSID:""  Nickname:"<WIFI@REALTEK>"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

New wifi adapter is on wlp0s21f0u1, but it does not show on ifconfig command and also it is not working on monitor mode.

Here is output of ifconfig

 ifconfig
enp2s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether c8:5b:76:ff:e7:cb  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 47262  bytes 13896728 (13.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 47262  bytes 13896728 (13.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.54.99  netmask 255.255.255.0  broadcast 192.168.54.255
        inet6 fe80::19d6:571:5ecd:233d  prefixlen 64  scopeid 0x20<link>
        ether 3c:f8:62:b4:85:94  txqueuelen 1000  (Ethernet)
        RX packets 119931  bytes 124429540 (118.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 161656  bytes 39967970 (38.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

it didn't work in the first so i installed that driver on
https://github.com/kelebek333/rtl8188fu.git
i doesn't support monitor mode and also here is the output of

 nmcli  device show wlp0s21f0u1 

 
GENERAL.DEVICE:                         wlp0s21f0u1
GENERAL.TYPE:                           wifi
GENERAL.HWADDR:                         00:E0:4C:81:88:02
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.GATEWAY:                            --
IP6.GATEWAY:                            --

Here is the output of

 airmon-ng start wlp0s21f0u1 

 

Found 2 processes that could cause trouble.
Kill them using 'airmon-ng check kill' before putting
the card in monitor mode, they will interfere by changing channels
and sometimes putting the interface back in managed mode

    PID Name
 105731 NetworkManager
 105740 wpa_supplicant

PHY     Interface       Driver          Chipset

null    wlp0s21f0u1     r8188eu         Realtek Semiconductor Corp. RTL8188FTV 802.11b/g/n 1T1R 2.4G WLAN Adapter
phy0    wlp3s0          iwlwifi         Intel Corporation Dual Band Wireless-AC 3165 Plus Bluetooth (rev 99)

What can I do to fix this problem? Thank you for your time!
I'd appreciate it if you can help me to fix this problem

P/S: I have already followed the instruction in here