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airmon-ng [2010/10/31 16:25] – SIOCSIFFLAGS: Unknown error 132 mister_xairmon-ng [2019/05/01 22:15] – [Madwifi-ng driver monitor mode] Updated indentation mister_x
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 ==== Typical Uses ==== ==== Typical Uses ====
  
-To start wlan0 in monitor mode: airmon-ng start wlan0+===Check status and/or listing wireless interfaces ===
  
-To start wlan0 in monitor mode on channel 8: airmon-ng start wlan0 8+  ~# airmon-ng 
 +  PHY Interface Driver Chipset 
 +   
 +  phy0 wlan0 ath9k_htc Atheros Communications, Inc. AR9271 802.11n
  
-To stop wlan0: airmon-ng stop wlan0+===Checking for interfering processes=== 
 + 
 +When putting a card into monitor mode, it will automatically check for interfering processes. It can also be done manually by running the following command: 
 + 
 +  ~# airmon-ng check 
 +  Found 5 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 
 +    718 NetworkManager 
 +    870 dhclient 
 +   1104 avahi-daemon 
 +   1105 avahi-daemon 
 +   1115 wpa_supplicant 
 + 
 +== Killing interfering processes== 
 + 
 +This command stops network managers then kill interfering processes left: 
 + 
 +  ~# airmon-ng check kill 
 +  Killing these processes: 
 +   
 +    PID Name 
 +    870 dhclient 
 +   1115 wpa_supplicant 
 + 
 +===Enable monitor mode=== 
 + 
 +**Note**: It is very important to kill the network managers before putting a card in monitor mode! 
 + 
 +  ~# airmon-ng start wlan0 
 +  Found 5 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 
 +    718 NetworkManager 
 +    870 dhclient 
 +   1104 avahi-daemon 
 +   1105 avahi-daemon 
 +   1115 wpa_supplicant 
 +   
 +  PHY Interface Driver Chipset 
 +   
 +  phy0 wlan0 ath9k_htc Atheros Communications, Inc. AR9271 802.11n 
 +  (mac80211 monitor mode vif enabled for [phy0]wlan0 on [phy0]wlan0mon) 
 +  (mac80211 station mode vif disabled for [phy0]wlan0) 
 + 
 +As you can see, it created a monitor mode interface called wlan0mon and it notified there are a few process that will interfere with the tools. 
 + 
 +===Disable monitor mode=== 
 + 
 +  ~# airmon-ng stop wlan0mon 
 +  PHY Interface Driver Chipset 
 +   
 +  phy0 wlan0mon ath9k_htc Atheros Communications, Inc. AR9271 802.11n 
 +  (mac80211 station mode vif enabled on [phy0]wlan0
 +  (mac80211 monitor mode vif disabled for [phy0]wlan0mon) 
 + 
 +Don't forget to restart the network manager. It is usually done with the following command: 
 + 
 +  service network-manager start
  
-To check the status: airmon-ng 
  
 ==== Madwifi-ng driver monitor mode ==== ==== Madwifi-ng driver monitor mode ====
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 If you want to use ath0 (which is already used): If you want to use ath0 (which is already used):
  
-airmon-ng stop ath0 +  airmon-ng stop ath0 
  
 And the system will respond: And the system will respond:
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 You can see ath0 is gone. You can see ath0 is gone.
  
-To start ath0 in monitor mode: airmon-ng start wifi0+To put wifi0 in monitor mode: 
 + 
 +  airmon-ng start wifi0
  
 System responds: System responds:
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 You can set the channel number by adding it to the end: airmon-ng start wifi0 9 You can set the channel number by adding it to the end: airmon-ng start wifi0 9
- 
- 
-==== mac80211 drivers monitor mode ==== 
- 
-See [[install_drivers#mac80211_versus_ieee80211_stacks|mac80211 versus ieee80211 stacks]] for some background information. 
- 
-When using the mac80211 version of a driver, the use of airmon-ng and the aircrack-ng tools are slightly different. 
- 
-Running: 
- 
-   airmon-ng start wlan0 
- 
-Gives something like: 
- 
-   Interface   Chipset      Driver 
-    
-   wlan0      Intel 4965 a/b/g/  iwl4965 - [phy0] 
-            (monitor mode enabled on mon0) 
- 
-Notice that it created "mon0" You must then use "mon0" in all the subsequent aircrack-ng tools as the injection interface. 
- 
-To remove monitor mode enter: 
- 
-   airmon-ng stop mon0 
  
  
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 ==== General ==== ==== General ====
 Quite often, the standard scripts on a linux distribution will setup ath0 and or additional athX interfaces.  These must all be removed first per the instructions above.  Another problem is that the script set fields such as essid, nickname and encryptions.  Be sure these are all cleared. Quite often, the standard scripts on a linux distribution will setup ath0 and or additional athX interfaces.  These must all be removed first per the instructions above.  Another problem is that the script set fields such as essid, nickname and encryptions.  Be sure these are all cleared.
 +
 +
 +==== Airmon-ng says the interface is not in monitor mode ==== 
 +
 +  ~# airmon-ng stop wlan0mon
 +  PHY Interface Driver Chipset
 +  
 +  phy0 wlan0mon ath9k_htc Atheros Communications, Inc. AR9271 802.11n
 +  
 +  You are trying to stop a device that isn't in monitor mode.
 +  Doing so is a terrible idea, if you really want to do it then you
 +  need to type 'iw wlan2mon del' yourself since it is a terrible idea.
 +  Most likely you want to remove an interface called wlan[0-9]mon
 +  If you feel you have reached this warning in error,
 +  please report it.
 +
 +It most likely mean the interface mode was changed from monitor to managed mode by a network manager. In this case, when stopping monitor mode, this is not a problem.
 +
 +==== My interface was put in monitor mode but tools says it is not ====
 +
 +It usually means the interface was put in monitor mode prior to killing network managers. And the network manager put the card back in managed mode.
 +
 +Refer to the documentation above to kill network managers and put it back into monitor mode.
  
 ==== Interface athX number rising (ath0, ath1, ath2.... ath45..) ==== ==== Interface athX number rising (ath0, ath1, ath2.... ath45..) ====
airmon-ng.txt · Last modified: 2022/02/09 00:34 by mister_x