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Mac networking / USB air card question

Discussion in 'Fred's House of Pancakes' started by radioprius1, Jan 9, 2010.

  1. radioprius1

    radioprius1 Climate Conspirisist

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    Hi guys,

    I have a small network question.

    On a MacBook, is it possible to use a USB aircard (to use AT&T 3G for internet access) and at the same time connect via the Mac's airport to an airport extreme in order to utilize wireless printing?

    Thank you for any help :)
     
    #1 radioprius1, Jan 9, 2010
  2. hobbit

    hobbit Senior Member

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    If the kernel sees both network devices and you can fiddle with
    them via "ifconfig", then yes. You'll probably have to manally
    dink your routing table to send stuff in the right directions,
    as the config-manager [the backend for the GUI network system
    preferences] might not handle it quite right.
    .
    Make sure forwarding is off: sysctl -w net.inet.ip.forwarding=0
    .
    _H*
     
    #2 hobbit, Jan 9, 2010
  3. radioprius1

    radioprius1 Climate Conspirisist

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    Yikes :)

    Thank you H!
     
    #3 radioprius1, Jan 9, 2010
  4. eagle33199

    eagle33199 Platinum Member

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    As hobbit indicated... yes, but not easily :)
     
    #4 eagle33199, Jan 11, 2010
  5. jpadc

    jpadc Type before I think too often

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    I remember reading something about how 10.6.x (Snow Leopard) should actually automatically figure out that one device is local (LAN) and the other device has internet access (WAN) and direct traffic appropriately. If I find that link I'll add it here. That does assume, of course, that the LAN (i.e., airport extreme) does not also have an internet connection. If it does, you will have to do the routing manually.
     
    #5 jpadc, Jan 12, 2010
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