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Dear Friends, I have fedora 13 and my laptop wlan card supports 802.11 abgn. I want to force the card only to function in 1 mode and not mixed. for ...
  1. #1
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    Problem with iwconfig modu

    Dear Friends,
    I have fedora 13 and my laptop wlan card supports 802.11 abgn.
    I want to force the card only to function in 1 mode and not mixed. for example only in 802.11b or 11g.
    I tried to do that by using iwconfig wlan0 modu 11b but I get an error as follow :
    Error for wireless request "Set Modulation" (8B2F) :
    SET failed on device wlan0 ; Operation not supported.

    Also tried to do that by using iwpriv command but it gave me another error which says : no private ioctls
    Please help me to solve this issue.
    Thank you in advance,
    Regards,
    A.G

  2. #2
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    Hi there,

    Can you tell us what kind of network card you are using and what driver you are using along with it?

    If you are unsure then you can post the output of "lspci" and "lsmod" and we may be able to work it out for you.

    Let us know how you get on
    To be good, you must first be bad. "Newbie" is a rank, not a slight.

  3. #3
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    Quote Originally Posted by kakariko81280 View Post
    Hi there,

    Can you tell us what kind of network card you are using and what driver you are using along with it?

    If you are unsure then you can post the output of "lspci" and "lsmod" and we may be able to work it out for you.

    Let us know how you get on
    Dear Kakariko,
    Here is the lspci output :
    05:00.0 Network controller: Intel Corporation WiFi Link 5100
    Subsystem: Intel Corporation WiFi Link 5100 AGN
    Flags: bus master, fast devsel, latency 0, IRQ 32
    Memory at d1500000 (64-bit, non-prefetchable) [size=8K]
    Capabilities: [c8] Power Management version 3
    Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [e0] Express Endpoint, MSI 00
    Capabilities: [100] Advanced Error Reporting
    Capabilities: [140] Device Serial Number 00-21-5d-ff-ff-f3-e1-d8
    Kernel driver in use: iwlagn
    Kernel modules: iwlagn
    Please let me know if you need more information.
    Hope you can help me on this. I really need it.
    Thank you in advance,
    Regards,
    A.G

  4. #4
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    Hi there,

    I'm guessing that command should have been "iwconfig wlan0 mode 11b". The mode command is used to set whether the network is managed or ad-hoc.

    What iwpriv command did you try? If you just run iwpriv against the device then it will show you the available commands so we can try and work out a solution for you.

    Let us know how you get on
    To be good, you must first be bad. "Newbie" is a rank, not a slight.

  5. #5
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    Dear Kakariko,
    when I use iwconfig wlan0 mode 11b I get the error message as follow :

    Error for wireless request "Set Mode" (8B06) :
    invalid argument "11b".

    And when I use iwpriv wlan0 I get this output :


    wlan0 no private ioctls.

    So what do you suggest ?
    Regards,
    A.G

  6. #6
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    Sorry, I have read more documentation and it seems that the original command you used should have worked. I thought you'd made a typo.

    I'm going to have to keep looking.
    To be good, you must first be bad. "Newbie" is a rank, not a slight.

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