From: Brian A. Seklecki (lavalampspiritual-machines.org)
Date: Sat Aug 02 2003 - 09:54:55 CDT

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On Fri, 2003-08-01 at 09:53, Sancho2k.net Lists wrote:
> Brian A. Seklecki wrote:
> > On Wed, 30 Jul 2003, Sancho2k.net Lists wrote:
> >
> >
> >>I've been considering implementing OpenBSD as a wireless access point.
> >>It would be a simple setup with one interface into the wired net and one
> >> 802.11b adaptor. My main concern would be unauthorized Internet access
> >
> >
> > ...do you mean a card in ad-hoc mode acting as an "access point" ?
>
> Yes. Are only prism2 based cards capable of this mode, or does the Cisco
> do it as well? If it does, is that because it is prism2?

I should hope they support ad-hoc for $175/card >:}

Actually no the .A card is that much, the .B, the AIR-LMC352 is the
PCMCIA model w/ external antenna support. Yes it supports ad-hoc.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3038825446&category=45000

The antenna on the AIR-PCM352, the model with onboard antenna, is an
*EXTERMELY* sensitive antenna. Stronger than any card I've used. The
AIR-LMC352 has Dual MMCX connnectors that you can get MMCX->RPTNC
pigtails for $10, then hook up any kind of high gain antenna you want.

I use a 5 dBi high gain omni directional for site surveys and on my
access point (most rubber ducky antennas on low end access points are
2dbi). Don't be confused about the dBi values, it's the radio chip that
makes most of the difference. The D-Link APs for example are very very
very weak. Anyway, my AIR-LMC + external antenna combo is meant for
outdoor WAN point to multi-point links, but it can also be good for
overcoming stronger-than-usual building material and other problems with
material signal refraction.

http://www.hyperlinktech.com/web/antennas_2400.php

...there's a nice $140 15 dBi high gain antenna that might do for your
needs >:}

http://www.hyperlinktech.com/web/hg2415u_pro.php

...however since everyone in a 15 mile radius will see your ad-hoc
signal, I would suggest higher than usual security precautions ;-)

-lava

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