Intel Wireless Wi-Fi 5100 Card injection

Hello,
I have a Dell Studio 1537 notebook with a Intel Wireless Wi-Fi 5100 Card. This card is supported by BT4 but the injection mode isn’t supported. I found a forum witch says: „In order to get injection working on Intel 5100 card download the latest linux-2.6.27-rc7.tar.bz2 kernel and patch the iwlwifi driver with the diffs from the latest kernel iwlwifi driver changes from Stefanik Gábor here”
link: tinyshell.be/aircrackng/forum/index.php?topic=4217.0

So my question: How to change the iwlwifi driver in the BT4?
Thank you for help!

There is a package in the repository named firmare-iwlwifi. That package and some help from google should be of some help. I don't think you need to compile a kernel on your own to get it working, though.

Quote:

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Originally Posted by Mirus

Hello,
I have a Dell Studio 1537 notebook with a Intel Wireless Wi-Fi 5100 Card. This card is supported by BT4 but the injection mode isn’t supported. I found a forum witch says: „In order to get injection working on Intel 5100 card download the latest linux-2.6.27-rc7.tar.bz2 kernel and patch the iwlwifi driver with the diffs from the latest kernel iwlwifi driver changes from Stefanik Gábor here”
link: tinyshell.be/aircrackng/forum/index.php?topic=4217.0

So my question: How to change the iwlwifi driver in the BT4?
Thank you for help!

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There's no need to download a patch. According to the changelog for kernel 2.6.28 the iwlagn driver supports injection w/out patching for Intel 5100 cards. BT4 uses 2.6.28.1 kernel. They do have a note about 5100 cards you might want to check out near the bottom of the link I provided.

Quote:

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Note: To inject management frames with encryption, HW crypto support
must be disabled using the "swcrypto=1" modparam (or "swcrypto50=1"
for iwl5000). Otherwise most management frames won't be transmitted.

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ok, now where would these switches be? im a bit lost here

Do you have a file /etc/modprobe.conf (might also be called discover-modprobe.conf)? If so, you could try to put options iwl4965 swcrypto=1 (or whatever fits your laptop) in there.

According to the aircrack-ng.org website you need to pass pass the arguments to /etc/modprobe.d/options file.
http://www.aircrack-ng.org/doku.php?id=iwlagn
For 4965 card is says run

Code:

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# echo options iwlagn swcrypto=1 >> /etc/modprobe.d/options

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For 5100 card I would assume run

Code:

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# echo options iwlagn swcrypto50=1 >> /etc/modprobe.d/options

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Then reboot. I can't confirm that this works as I don't have an Intel 4965 card or 5XXX card to test.
Alternatively, if you just wanted to check to see if it works without making changes to the options file you could load and unload your driver.

Code:

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# modprobe -r iwlagn
# modprobe iwlagn swcrypto50=1

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Quote:

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Alternatively, if you just wanted to check to see if it works without making changes to the options file you could load and unload your driver.
Code:

Code:

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# modprobe -r iwlagn
# modprobe iwlagn swcrypto50=1

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Hi there larryhaja and thank you for your answers.
I followed your instructions shown above and my iwl5100 still can't inject. I'm using BT4 and everything works great, except injection. I'll be very thankful if you or someone else can help me with this issue.
Thanks in advance.

Hello.

I have the same problem with Intel WiFi 5100 on ASUS M51VR notebook. Everything works great, but injection is not working correctly. I run the injection test with Aireplay and sometimes he says, that "Injection working" to some APs, but when I try to use it in action it is not working. Aireplay returns:

Quote:

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Sending Authentication Request
Authentication successful
Sending Association Request
Association successful

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and this is repeated countless times, until Aireplay returns error with some advices.

I tried almost everything to fix this problem. Running wireless card on the same channel as AP, iwconfig rate 1M, swcrypto50=1, but the problem still exists. :( :(

Please help.
Thanks in advance. :)

Quote:

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Originally Posted by swordfish_1

Hello.

I have the same problem with Intel WiFi 5100 on ASUS M51VR notebook. Everything works great, but injection is not working correctly. I run the injection test with Aireplay and sometimes he says, that "Injection working" to some APs, but when I try to use it in action it is not working. Aireplay returns:



and this is repeated countless times, until Aireplay returns error with some advices.

I tried almost everything to fix this problem. Running wireless card on the same channel as AP, iwconfig rate 1M, swcrypto50=1, but the problem still exists. :( :(

Please help.
Thanks in advance. :)

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I have the same problem, any idea ? Injection appears to get lost.
Also, i tried to associate to the AP with wpa_supplicant but sometimes when said connected it blocks the interface so i can't use the interface with airodump or aireplay.

Quote:

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Originally Posted by Mirus

Hello,
I have a Dell Studio 1537 notebook with a Intel Wireless Wi-Fi 5100 Card. This card is supported by BT4 but the injection mode isn’t supported. I found a forum witch says: „In order to get injection working on Intel 5100 card download the latest linux-2.6.27-rc7.tar.bz2 kernel and patch the iwlwifi driver with the diffs from the latest kernel iwlwifi driver changes from Stefanik Gábor here”


So my question: How to change the iwlwifi driver in the BT4?
Thank you for help!

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To change iwlwifi driver i've used backtrack with persistant changes,

downloaded compat wireless from here

wireless. kernel. org/ en / users / Download

extracted them, gone into dir, downloaded patch for better injection

patches. aircrack-ng. org/ mac80211_2.6.28-rc4-wl_frag+ack_v3.patch

now, to patch drivers do

patch -p1 < mac80211_2.6.28-rc4-wl_frag+ack_v3.patch

now we have to install drivers

make
make install
make unload
make load

so now we have drivers working.

For fakeauth the aircrack-ng method doesn't works with 4965, and I think doesn't also with 5100...Cause a firmware bug, you have to use a auth with wpa_supplicant, to do this open a file and call it wpa_supplicant.conf, in it type

etwork={
ssid="essid of network"
key_mgmt=NONE
#wep_key0="fakeauth"
}

and then use aircrack suite normally..

PS: sorry for the spaces into urls but i haven't posted 15 mesg...