hostap (was: good pcmcia card to build ap)

[Duncan Barclay]

On 09-Apr-2003 Louis A. Mamakos wrote:
>> On Mon, Apr 07, 2003 at 03:34:39PM +0200, Erik Paulsen Sklerud wrote:
>> > 
>> > > I'm like Tobias looking to make an accessPoint, but with a
>> > > PCI type card
>> > > instead, but it should be the same I think? Could someone please name
>> > > some cards based on the PRISM-chip, if that's the only card
>> > > supporting hostAP
>> > > in FreeBSD?
>> 
>> but then, do I really need hostap? i tried out ad-hoc mode with a linksys
>> card, and it seems to work just fine. i didn't get much smarter by googling
>> for hostap. what are the advantages of it (especially when I use only one
>> acess point, not multiple ones?). I have multiple machines that need to
>> connect at the same time though, all with different operating systems
>> (FreeBSD, WinXP, OSX). But that also shouldn't cause trouble, as far as I
>> understand the situation.
> 
> In infrastructure mode (vs. ad-hoc mode) you'll get more effective
> channel utilization in the situation where each of the other stations
> cannot hear each other.  Google for "hidden terminal problem" and
> read all about it.

However, the station to station bandwidth is reduced by a factor of two because
of the relaying. If you are only using .11 to wirelessly star your machines into
a server then an AP (or hostap) is good. However, if you are using it as a peer 
to peer network then ad-hoc gives better throughput (as long as they can hear
each other).

> louie
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-- 
________________________________________________________________________
Duncan Barclay  | 
dmlb at dmlb.org   | 
dmlb at freebsd.org|