NBTscan version 1.0.1. Copyright (C) 1999 Alla Bezroutchko

NBTscan is a program for scanning IP networks for NetBIOS name
information. It sends NetBIOS status query to each address in
supplied range and lists received information in human
readable form. For each responded host it lists IP address,
NetBIOS computer name, logged-in user name and MAC address 
(such as Ethernet).

See http://www.abb.aha.ru/software/nbtscan.html for
NBTscan homepage.

LICENSE.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program (in a file called COPYING); if not, write 
to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, 
MA 02139, USA.

File cygwin1.dll is a part of Cygwin by Cygnus Solutions 
(http://www.cygnus.com). Cygwin is distributed under terms of GNU
General Public License. 

INSTALLATION.

To use NBTscan copy nbtscan.exe and cygwin1.dll files to a directory
in your path.

RUNNING.

nbtscan [-v] [-t timeout] [-r] <scan_range>
        -v              verbose output. Prints all names received 
			from each host
        -t timeout      wait timeout seconds for response. Default 1.
        -r              use local port 137 for scans. Win95 boxes 
			respond to this only. You need to be root to 
			use this option on Unix. On Windows this option
			is not available at all. See BUGS/LIMITATIONS.
        <scan_range>    what to scan. Can either be single IP like 
			192.168.1.1 or range of addresses in one of 
			two forms:
                        xxx.xxx.xxx.xxx/xx or xxx.xxx.xxx.xxx-xxx.
Examples:
        nbtscan -r 192.168.1.0/24
                Scans the whole C-class network.
        nbtscan 192.168.1.25-137
                Scans a range from 192.168.1.25 to 192.168.1.137

Timeout option is meant for scanning something not on the same LAN
as scanner. Using value of 10 is quite reasonable for scanning over
the Internet.

BUGS/LIMITATIONS

Windows version has a certain limitation: you cannot scan Win95 
hosts with it because Windows 95 always sends responses to name 
queries to port 137, and you cannot bind to port 137 under
Windows (it is already taken by Windows itself).

Report bugs to alla@sovlink.ru (that's me). I cannot promise to
do anything but I might well want fix it. Remember: no warranty.
At least it's worth what you payed for it.
