LAN Scanner
LAN Scanner is a free utility that scans your local network by sending ARP packets and waits response to identify the devices that offer a service on a certain TCP-IP port.
LAN Scanner can even detect devices behind a firewall, but it only allows to reach local devices (the ARP packets do not go beyond your router).
After a scan, you can double-click the list to dump it into Notepad. Or click a column header to sort it.
LAN Scanner is particularly fast: it is based on threads, and can scan a range of 256 addresses (e.g. *192.168.0.** ) in less than 1s.
LAN Scanner is written by Nicolas Mougin (mougino@free.fr).
You can download the program at http://mougino.free.fr/freeware/#LANS
License
LAN Scanner is provided under the GNU GPL V3 license.
See "gpl.txt" or https://www.gnu.org/licenses/gpl.html
Source code is available at http://mougino.free.fr/code/index.php?p=LAN+Scanner
How to build
LAN Scanner is written and compiled with Classic PowerBasic v9.07.0205.
http://powerbasic.com