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Thread: Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not support ?

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  1. #1
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    Question Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not support ?

    Hi Everyone,

    I've been using Backtrack 4 installed in my laptop which has Intel 3945 ABG card, i am unable to connect to the wifi network but somehow that is not the priority since i can scan the wireless LAN signal in which I'd like to test the security (WEP protected).

    but somehow when i run the command "airodump-ng --channel 6 --bssid 00:60:64:29:1F:AB -w DW-result wlan0" it failed, see the blow attached error message ?

    Code:
    root@bt:~# airmon-ng
    Interface       Chipset         Driver
    wlan0           Intel 3945ABG   iwl3945 - [phy0]
    mon0            Intel 3945ABG   iwl3945 - [phy0]
    wlan0mon                Intel 3945ABG   iwl3945 - [phy0]
    ##########################################################################################################
    root@bt:~# airodump-ng --channel 6 --bssid 00:60:64:29:1F:AB -w DW-result wlan0
    ioctl(SIOCSIWMODE) failed: Device or resource busy
    ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211,
    ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead.  Make
    sure RFMON is enabled: run 'airmon-ng start wlan0 <#>'
    Sysfs injection support was not found either.
    ##########################################################################################################
    root@bt:~# lsmod | grep 3945
    iwl3945               148216  0
    iwlcore               161336  1 iwl3945
    mac80211              204728  2 iwl3945,iwlcore
    led_class               3608  3 sdhci,iwl3945,iwlcore
    lib80211                5176  2 iwl3945,iwlcore
    cfg80211               61268  3 iwl3945,iwlcore,mac80211
    ##########################################################################################################
    root@bt:~# lspci | grep -i net
    03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
    0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
    ##########################################################################################################
    root@bt:~# dmesg | grep firmware
    iwl3945 0000:0c:00.0: firmware: requesting iwlwifi-3945-2.ucode
    iwl3945 0000:0c:00.0: loaded firmware version 15.28.2.8
    ##########################################################################################################
    root@bt:~# dmesg | grep iwl
    iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26kds
    iwl3945: Copyright(c) 2003-2009 Intel Corporation
    iwl3945 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
    iwl3945 0000:0c:00.0: setting latency timer to 64
    iwl3945 0000:0c:00.0: Tunable channels: 11 802.11bg, 13 802.11a channels
    iwl3945 0000:0c:00.0: Detected Intel Wireless WiFi Link 3945ABG
    iwl3945 0000:0c:00.0: irq 28 for MSI/MSI-X
    phy0: Selected rate control algorithm 'iwl-3945-rs'
    iwl3945 0000:0c:00.0: firmware: requesting iwlwifi-3945-2.ucode
    iwl3945 0000:0c:00.0: loaded firmware version 15.28.2.8
    Registered led device: iwl-phy0::radio
    Registered led device: iwl-phy0::assoc
    Registered led device: iwl-phy0::RX
    Registered led device: iwl-phy0::TX
    ##########################################################################################################
    root@bt:~# dmesg | grep wlan
    ADDRCONF(NETDEV_UP): wlan0: link is not ready
    device wlan0 entered promiscuous mode
    device wlan0mon entered promiscuous mode
    device wlan0 left promiscuous mode
    ##########################################################################################################
    at the moment i don't have internet connection in that laptop and wondering what should i do now here to begin using airodump-ng ?

    Any help would be greatly appreciated.

    Thanks.

  2. #2
    My life is this forum Snayler's Avatar
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    Default Re: Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not suppo

    Quote Originally Posted by SiteManager View Post
    root@bt:~# airodump-ng --channel 6 --bssid 00:60:64:29:1F:AB -w DW-result wlan0
    ioctl(SIOCSIWMODE) failed: Device or resource busy
    ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211,
    ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead. Make
    sure RFMON is enabled: run 'airmon-ng start wlan0 <#>'
    Sysfs injection support was not found either.
    Try using mon0 instead of wlan0... Did you really put an effort into solving this?

  3. #3
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    Cool Re: Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not suppo

    thanks man, it works now :-o)

    root@bt:~# ifconfig -a
    eth0 Link encap:Ethernet HWaddr 00:1d:09:d3:01:fe
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
    Interrupt:17

    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

    wlan0 Link encap:Ethernet HWaddr 00:1c:bf:9e:a5:c7
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

    root@bt:~# airmon-ng start wlan0

    Found 1 processes that could cause trouble.
    If airodump-ng, aireplay-ng or airtun-ng stops working after
    a short period of time, you may want to kill (some of) them!

    PID Name
    8242 dhclient
    Process with PID 8242 (dhclient) is running on interface wlan0

    Interface Chipset Driver
    wlan0 Intel 3945ABG iwl3945 - [phy0]
    (monitor mode enabled on mon0)

  4. #4
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    Default Re: Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not suppo

    yes man it works now :-o)

  5. #5
    Just burned his ISO
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    Default Re: Unable to use airodump-ng on Intel 3945 wireless card - Sysfs injection not suppo

    Thank man it works.

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