Matt wrote:

> "Coenraad Loubser" <c10u@ananzi.co.za> wrote in message
> news:d45h5o$ca1$1@ctb-nnrp2.saix.net...
>> Matt wrote:
>>> I have a question about sniffing on networks. I know that it is
>>> possible to sniff on a wired network, even without an IP address, and i
>>> know it is possible to sniff on an unencrypted or encrypted wireless
>>> network, but is it possible for someone to have cracked my WEP key, sit
>>> on my network and
>>> sniff or communicate on my network w/o an IP address? Using a wireless
>>> IDS (kismet), i can see that my access point has packets going through
>>> the air, even though my laptop is turned off. I checked in my linksys
>>> web-based management page and there are no other MAC addresses assigned.
>>> someone could be using a static IP, but can they be listening or
>>> communicating w/o an IP address?
>>>
>>> Thanks!
>>> -matt
>>
>> Wep is useless and can be cracked in 2 hours on a moderately used network
>> by a 10 year old with open source software.
>>
>> Also, have you heard of a radio tower than can detect how many radios are
>> tuned into it?
>>
>
> I wouldn't say useless, but not as useful as i had thought. Basically, i
> cracked my own WEP and because enough data went through the air to do
> this, i want to know if anyone else cracked it.

Perhaps you should be asking, if there's anyone who hasn't cracked it. ;-)

>
> Just curious, if its so useless, what would you use?

I keeps out the casual intruder.
>
> No i haven't heard of radio towers. I'm not sure how that's possible
> since it's A) analog data B) nothing is sent from the radio, but enlighten
> me....

Analog/digital has nothing to do with it. If it's sent by radio, anyone
within range can receive the signal and analyze it.