[kwlug disc.] detecting wireless

[Oksana Goertzen]

On 3/6/07, Cedric Puddy <cedric at thinkers.org> wrote:
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> No, the problem with phones not being seen by iwlist is because
> mobile phones don't speak the 802.11b/g Wireless LAN protocol.  They
> use the same radio frequency bands, but they don't even speak a
> similar language.


I see.  Thanks! - that was a good explaination.   I thought they would see
the traffic but not be able to interpret it.

(There are a few WLAN cordless phones that speak SIP VOIP protocol,
> but you probably don't have one .)


You're right, I don't.

The problem with your access point is probably *not* another access
> point -- Access Points recognize each others traffic, and do their
> best to respect each others use of the radio spectrum -- for example,
> they will recognize when another access point is talking, and choose
> to *NOT* transmit potentially interfering signal at the same time.
> Non-access points (cordless phones, microwave ovens, 2.4 Ghz video
> cameras, etc.) don't give hoot (they can't even know) if you are
> using WLAN at any given microsecond and will happily do their thing
> regardless of whether or not it blocks your signal.


The signal is going up and down like a yoyo - it's good for a while and then
it might go up and down for 10 minutes.  I can see two other networks from
time to time - right now I"m using channel 9 and one is on channel 11 [the
channel i was using and it was working until someone else decided that it
was a good number] and the other is on channel 1.  channel 6 i have my
cordless phones on and i don't own a microwave.  Not having a wireless
connection has greatly impeded my ability to respond in a timely fashion.
Right now i'm sitting in the basement with a wired connection on an old
laptop [and it's cold down here]!! The other pc's i have run windows and i
have two that run linux only - and both have been using ndiswrapper - so
kismet won't work - you can't use windows drivers.  I'm not sure if i'm
dealing with interference - but that's what it seems like to me.. or whether
the wireless router is giving up the ghost.  It's a DLink - and i could
replace it.  Any recommendations on what to buy - i'm assuming a Linksys
WRT.  The Wifi detector you mentioned sounded interesting/cool as well.

Oksana
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