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airtun-ng [2009/09/25 22:55]
darkaudax Fixed typos
airtun-ng [2010/11/21 16:14]
sleek typos
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 In order to perform wIDS data gathering, you must have the encryption key and the bssid for the network you wish to monitor. Airtun-ng decrypts all the traffic for the specific network and passes it to a traditional IDS system such as [[http://www.snort.org|snort]]. In order to perform wIDS data gathering, you must have the encryption key and the bssid for the network you wish to monitor. Airtun-ng decrypts all the traffic for the specific network and passes it to a traditional IDS system such as [[http://www.snort.org|snort]].
  
-Traffic injection can be fully bidirectional if you have the full encyption key. It is outgoing unidirectional if you have the PRGA obtained via [[korek_chopchop|chopchop]] or [[fragmentation]] attacks. The prime advantage of airtun-ng over the other injection tools in the aircrack-ng suite is that you may use any tool subsequently to create, inject or sniff packets.+Traffic injection can be fully bidirectional if you have the full encryption key. It is outgoing unidirectional if you have the PRGA obtained via [[korek_chopchop|chopchop]] or [[fragmentation]] attacks. The prime advantage of airtun-ng over the other injection tools in the aircrack-ng suite is that you may use any tool subsequently to create, inject or sniff packets.
  
 Airtun-ng also has repeater and tcpreplay-type functionality.  There is a repeater function which allows you to replay all traffic sniffed through a wireless device (interface specified by -i at0) and optionally filter the traffic by a bssid together with a network mask and replay the remaining traffic.  While doing this, you can still use the tun interface while repeating.  As well, a pcap file read feature allows you to replay stored pcap-format packet captures just the way you captured them in the first place.  This is essentially tcpreplay functionality for wifi. Airtun-ng also has repeater and tcpreplay-type functionality.  There is a repeater function which allows you to replay all traffic sniffed through a wireless device (interface specified by -i at0) and optionally filter the traffic by a bssid together with a network mask and replay the remaining traffic.  While doing this, you can still use the tun interface while repeating.  As well, a pcap file read feature allows you to replay stored pcap-format packet captures just the way you captured them in the first place.  This is essentially tcpreplay functionality for wifi.
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       *-t tods : send frames to AP (1) or to client (0) (optional / defaults to 0)       *-t tods : send frames to AP (1) or to client (0) (optional / defaults to 0)
       *-r file : read frames out of pcap file (optional)       *-r file : read frames out of pcap file (optional)
 +      *-h MAC  : source MAC address
 +      *-H      : Display help.  Long form --help
  
 Repeater options (the following all require double dashes): Repeater options (the following all require double dashes):
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   *- -bssid <mac> : BSSID to repeat.  Short form -d.   *- -bssid <mac> : BSSID to repeat.  Short form -d.
   *- -netmask <mask> : netmask for BSSID filter.  Short form -m.   *- -netmask <mask> : netmask for BSSID filter.  Short form -m.
 +
  
 ===== Scenarios ===== ===== Scenarios =====
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    FromDS bit set in all frames.    FromDS bit set in all frames.
  
-You notice above that it created the **at0** interface. Switch to another console sesssion and you must now bring this interface up in order to use it:+You notice above that it created the **at0** interface. Switch to another console session and you must now bring this interface up in order to use it:
  
    ifconfig at0 up    ifconfig at0 up
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 This is how to setup airtun-ng for this scenario: This is how to setup airtun-ng for this scenario:
  
-   airtun-ng -t ath0 -BB:BB:BB:BB:BB:BB -a AA:AA:AA:AA:AA:AA -i ath0+   airtun-ng -t ath0 -BB:BB:BB:BB:BB:BB -a AA:AA:AA:AA:AA:AA -i ath0
  
 If you are able to see both sides of a WDS/Bridge network, you can enable bidirectional mode. This enables communication with both endpoint's networks. Be aware that bidirectional mode keeps track of clients behind each node in a list in memory, since it needs to know to which of the two endpoints it needs to send a packet to reach a certain client. If you use an embedded system, or there are large amounts of clients connected, this may slow down your machine. If you are able to see both sides of a WDS/Bridge network, you can enable bidirectional mode. This enables communication with both endpoint's networks. Be aware that bidirectional mode keeps track of clients behind each node in a list in memory, since it needs to know to which of the two endpoints it needs to send a packet to reach a certain client. If you use an embedded system, or there are large amounts of clients connected, this may slow down your machine.
  
-   airtun-ng -t ath0 -BB:BB:BB:BB:BB:BB -a AA:AA:AA:AA:AA:AA -i ath0 -b+   airtun-ng -t ath0 -BB:BB:BB:BB:BB:BB -a AA:AA:AA:AA:AA:AA -i ath0 -f
  
 WDS mode is fully compatible with WEP encryption, so you can use the -w and -y flags as usual. WDS mode is fully compatible with WEP encryption, so you can use the -w and -y flags as usual.
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 This loads the "tun" module.  You can confirm it is loaded by running "lsmod | grep tun" If it does not load or there are problems, running "dmesg" and reviewing the end should show errors, if any. This loads the "tun" module.  You can confirm it is loaded by running "lsmod | grep tun" If it does not load or there are problems, running "dmesg" and reviewing the end should show errors, if any.
 +
 +==== Error creating tap interface: Permission denied ====
 +
 +See the following [[faq#why_do_i_get_error_creating_tap_interfacepermission_denied_or_a_similar_message|FAQ entry]].
 +
airtun-ng.txt ยท Last modified: 2015/04/12 23:15 by mister_x