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lester29

Member

Registered: 2022-10-31

Posts: 9

rtl8812au - interface wlan0mon is not created by airmon-ng

hi folks, I have a problem that network interface named wlan0mon or with other similar name is not created by airmon-ng tool. I want to switch my rtl8812au based network wifi card alfa awus036ach to the monitor mode
on my arch I have installed a rtl88xxau-aircrack-dkms-git package from AUR repository. I connect this wifi card by usb-c, not sure if it matters
any help is appreciated, thanks

shell output:

[root@lain ~]# airmon-ng start wlan0


PHY     Interface       Driver          Chipset

phy2    wlan0           88XXau          Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
        wlan0 is soft blocked, please run "rfkill unblock 3" to use this interface.
rfkill error, unable to start wlan0

Would you like to try and automatically resolve this? [y/n] y

Failed to set wlan0 up using ip
                (monitor mode enabled)

Failed to set wlan0 up using ip

Error setting channel: command failed: Device or resource busy (-16)
Error -16 likely means your card was set back to station mode by something.
Removing non-monitor wlan0 interface...

Failed to set wlan0 up using ip
                (monitor mode disabled)
[root@lain ~]# rfkill unblock 3
[root@lain ~]# airmon-ng start wlan0


PHY     Interface       Driver          Chipset

phy2    wlan0           88XXau          Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
                (monitor mode enabled)
phy1    wlan1           iwlwifi         Intel Corporation Cannon Lake PCH CNVi WiFi (rev 10)

[root@lain ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:d8:61:05:9b:29 brd ff:ff:ff:ff:ff:ff
3: enp0s20f0u3u2u4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 00:26:23:3c:f1:37 brd ff:ff:ff:ff:ff:ff
4: wwan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:1e:10:1f:00:00 brd ff:ff:ff:ff:ff:ff
    altname wwp0s20f0u3u3u1i2
6: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 48:a4:72:af:6e:d2 brd ff:ff:ff:ff:ff:ff
7: virbr1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:38:8d:c8 brd ff:ff:ff:ff:ff:ff
8: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:1c:45:38 brd ff:ff:ff:ff:ff:ff
9: virbr2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:e3:b6:02 brd ff:ff:ff:ff:ff:ff
10: lxcbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:16:3e:00:00:00 brd ff:ff:ff:ff:ff:ff
11: ztfp6odkw6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2800 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 92:a8:d1:35:9b:d4 brd ff:ff:ff:ff:ff:ff
12: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
    link/ether 02:42:fa:af:ca:ab brd ff:ff:ff:ff:ff:ff
13: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2312 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ieee802.11/radiotap 00:c0:ca:b0:39:5b brd ff:ff:ff:ff:ff:ff
[root@lain ~]# airmon-ng

PHY     Interface       Driver          Chipset

phy2    wlan0           88XXau          Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
phy1    wlan1           iwlwifi         Intel Corporation Cannon Lake PCH CNVi WiFi (rev 10)

[root@lain ~]# airmon-ng start wlan0


PHY     Interface       Driver          Chipset

phy2    wlan0           88XXau          Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
                (mac80211 monitor mode already enabled for [phy2]wlan0 on [phy2]10)
[root@lain ~]# airmon-ng

PHY     Interface       Driver          Chipset

phy2    wlan0           88XXau          Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter
phy1    wlan1           iwlwifi         Intel Corporation Cannon Lake PCH CNVi WiFi (rev 10)

[root@lain ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:d8:61:05:9b:29 brd ff:ff:ff:ff:ff:ff
3: enp0s20f0u3u2u4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 00:26:23:3c:f1:37 brd ff:ff:ff:ff:ff:ff
4: wwan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:1e:10:1f:00:00 brd ff:ff:ff:ff:ff:ff
    altname wwp0s20f0u3u3u1i2
6: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 48:a4:72:af:6e:d2 brd ff:ff:ff:ff:ff:ff
7: virbr1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:38:8d:c8 brd ff:ff:ff:ff:ff:ff
8: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:1c:45:38 brd ff:ff:ff:ff:ff:ff
9: virbr2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:e3:b6:02 brd ff:ff:ff:ff:ff:ff
10: lxcbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:16:3e:00:00:00 brd ff:ff:ff:ff:ff:ff
11: ztfp6odkw6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2800 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 92:a8:d1:35:9b:d4 brd ff:ff:ff:ff:ff:ff
12: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
    link/ether 02:42:fa:af:ca:ab brd ff:ff:ff:ff:ff:ff
13: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2312 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ieee802.11/radiotap 00:c0:ca:b0:39:5b brd ff:ff:ff:ff:ff:ff

Last edited by lester29 (2023-12-12 09:53:17)

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Registered: 2024-01-23

Posts: 4

Re: rtl8812au - interface wlan0mon is not created by airmon-ng

Try "$ airmon-ng check kill" and try again