Re: Re: Wireless setup

[Stuart Booth <lists@xxxxxxx>]

On Fri, 20 Sep 2002 08:53:02 -0000, "Nick Towers"
<nickt@xxxxxxx>
wrote:

>I'm also interested in this - I believe you can, depending on 
>distance/line of sight between networks, but I'm sure one of experts
>on group will confirm & recommend.

Distance to the 10/15 mile range is apparently possible, but line of
sight is essential. I've only done it a few hundred meters myself as
that's all I need.

>What I'd like to investigate is sharing a broadband connection 
>between a number of home networks. I live in a no-ADSL no cable area
>BUT I believe I have line of sight (3 miles chimney to chimney) to a
>friends house where there can be ADSL. I think (from previous 
>discussions) it would be possible to connect wirelessly, but then if
>I further distribute the signal to a few local friends in the same 
>street (wirelessly),

Easy (I think). You put your AP in "Access Point" mode, connect
it to
an omni directional antenna on your chimney, and any of your
neighbours with an antenna on their chimneys can talk to your AP via
"Access Point Client" mode (they ONLY talk to your AP).

You then need another AP that bridges to the remote/long distance
node. Hence probably a second aerial, this time directional, aimed at
the remote ADSL connection.

> how do you a) prevent one person accessing 
>another's network (it does not however need to be Fort Knox) and b)
>(worse) prevent strangers tapping in to the network?

You can limit the APs to only allow traffic from particular MAC
addresses, although this is usually PCCards.

The bridging APs are configured to only talk to each others MAC
addresses.

This is probably one for the UKHA_Networking group as we've chatted
about this type of thing in various conversations over there.

Stuart
-- 
Stuart Booth
Somewhere in Buckinghamshire, England, UK

stuart@xxxxxxx

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