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From: David Gibson (dgibsonozlabs.au.ibm.com)
Date: Thu Jan 03 2002 - 17:35:58 CST

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    On Thu, Jan 03, 2002 at 06:08:26PM +1100, Martijn van Oosterhout wrote:
    > On Thu, Jan 03, 2002 at 10:07:21AM +1100, David Gibson wrote:
    > > Well, matching frequencies and essids is critical (or should be), but
    > > the cards do have a tendency to autoselect frequencies and essid to
    > > find other cards. If you explicitly give to cards different essids
    > > they should not communicate - that's the whole point of essid. Are
    > > you sure they really have a different essid, or has one of them
    > > changed essid behind your back? Note that iwconfig will give
    > > misleading results for essid (and other things) if the interface is
    > > down.
    >
    > I'm serious. I have set in my pcmcia/wireless.opts (iirc) file I set ESSID
    > to "wireless" yet without changing any settings I can see and be seen by
    > machines with the ESSID "rainmaker" (a powerbook, win98 laptop and a
    > 486

    Ok, but do the machines still show different essids after they've
    talked?

    > linux one). iwconfig shows the essid as "wireless". In fact, the 486 I don't
    > think sets it's ESSID at all (can't find a wireless-tools compiled for
    > slink).

    ...and if you're not setting it, it will be "auto" and look for the
    essid of other nearby machines.

    -- 
    David Gibson			| For every complex problem there is a
    davidgibson.dropbear.id.au	| solution which is simple, neat and
    				| wrong.  -- H.L. Mencken
    http://www.ozlabs.org/people/dgibson