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Posted by:fat
Subject:Building an all channel USB based Kismet rig. Need advice.
Date:10:19:04 24/04/2008

I am looking at adding to my rig by purchasing enough USB wireless devices and antennas to monitor all 13-14 channels.

I know about channel overlap and often see traffic from an adjacent channel while locked to one.

The questions are (sorry for so many):

Whilst locked to a channel will Kismet still dump all packets it sees even if it from a different channel.?

The number of USB devices required obviously depends on a number of parameters but does the following sound feasible:

Channel/Device
1
2 USB1
3
4 USB2
5
6 USB3
7
8 USB4
9
10 USB5
11
12 USB6
13
14 USB7

If i set each radio to hop between 2 adjacent channels would I lose data as the radio changes channel.?

On the assumption that only a few of the channels will ever be occupied at the one time is there any way to set the devices to optimally choose their channel configuration. i.e. hop until an AP is seen then lock onto that channel. Essentially make best use of the radios that are available dynamically and in real time.?

And finally this is a bit off topic but I see that many USB manufacturers don't list electrical power requirements. A USB device set to receive only will use less power but has anyone any idea how to accurately determine how many devices can be put on one USB port without hitting power problems?

Thanks in advance. Any opinions and advice will be gladly welcomed :)


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