Teoria

NetStumbler v0.4.0 Release Notes
Marius Milner
Thank you for your interest in NetStumbler. It is provided to you as
a convenience, at no cost and without warranty. If you don't like it,
or if you feel that it doesn't quite do what you want, you are free to
delete it from your system. By installing or using it, you agree to be
bound by the terms of the License Agreement.
NetStumbler is"beggarware". This means that you do not have to
pay for a license to use it. However if you use it and like it, please
consider making a donation at http://www.stumbler.net/donate to
support future development, web hosting and other costs that I
incur as a result of making this software available to you. Please
bear in mind that I do this as a hobby in my spare time, not as a full
time job.Commercial and Government users are strongly encouraged to
donate. The suggested donation is US$50 per copy. You may
donate by visiting the web site http://www.stumbler.net/donate.
You can pay in a variety of ways and may send a Purchase Order if
needed.

What is NetStumbler?
NetStumbler is a tool for Windows that allows you to detect Wireless
Local Area Networks (WLANs) using 802.11b,802.11a and 802.11g.
It has many uses:
• Verify that your network is set up the way you intended.
• Find locations with poor coverage in your WLAN.
• Detect other networks that may be causing interference on
your network.
• Detect unauthorized "rogue" access points in your workplace.
• Help aim directional antennas for long-haul WLAN links.
• Use it recreationally for WarDriving.Requirements
General Requirements
The requirements for NetStumbler are somewhat complex and
depend on hardware, firmware versions, driver versions and
operating system. The best way to see if it works on your system is
to try it.
Some configurations have been extensively tested and are known to
work. These are detailed at http://www.stumbler.net/compat. If
your configuration works but is notlisted, or is listed but does not
work, please follow the instructions on the web site.
The following are rules of thumb that you can follow in case you
cannot reach the web site for some reason.
• This version of NetStumbler requires Windows 2000, Windows
XP, or better.
• The Proxim models 8410-WD and 8420-WD are known to
work. The 8410-WD has also been sold as the Dell TrueMobile
1150, CompaqWL110, Avaya Wireless 802.11b PC Card, and
others.
• Most cards based on the Intersil Prism/Prism2 chip set also
work.
• Most 802.11b, 802.11a and 802.11g wireless LAN adapters
should work on Windows XP. Some may work on Windows
2000 too. Many of them report inaccurate Signal strength, and
if using the "NDIS 5.1" card access method then Noise level
will not be reported. This includes cardsbased on Atheros,
Atmel, Broadcom, Cisco and Centrino chip sets.
• I cannot help you figure out what chip set is in any given card.

Firmware Requirements
If you have an old WaveLAN/IEEE card then please note that the
WaveLAN firmware (version 4.X and below) does not work with
NetStumbler. If your card has this version, you are advised to

upgrade to the latest version available fromProxim's web site. This
will also ensure compatibility with the 802.11b standard.

Other Requirements and Compatibility Issues
• Your card must be configured in such a way that it can be
seen by the management software that came with the card.
• The Microsoft-provided Orinoco drivers that come with
Windows 2000 do not work with NetStumbler. Please visit
Windows Update or www.proxim.com andupgrade to the
latest drivers.
• When NetStumbler is in "auto reconfigure" mode (the default),
it will occasionally disconnect you from your network. This
enables it to perform its scans accurately, and is not a bug.
• If you have the WLAN card configured to connect to a specific
SSID, NetStumbler may not report any accees points other
than those that have that SSID. Configure your card...