Open Source Port Scanners

Easy to use GUI app. *It reads your active and Up NIC and gets some info about it. * You can see your machine IP Address, gateway, subnet mask. * You can ping any ip address you want and get measure of TTL. * It gets the available range of IP's in your local network. * When you start the test you see testing throughput as a graph against time also total size of packet sent in (MB). *You can use it as DOS attack tool. *Every action done on the app is logged in XML file as data source (only stress test + ping). *TCP-Ping is a perfect way to discover network devices which active firewall to ignore ping packets or you can use it as TCP port scanner to check your network security. *Stress test speed graph can be exported as image easily. *Searching log files for certain data is also integrated to app. *Exporting search results as static HTML page.

AdminUCV NGN is NMS written in Java/C++, that supports IPv4 and IPv6. It brings a SNMP based manager (SNMP v1 and v2c), a graphical tool to monitor the network, a traps receiver, a MIBs compiler and tools such as ping, tracert, port scanner and sniffer.

LinScope is GUI(QT), port scanner with enumerating windows network shares (SMB). LinScope can save favorites list. You can add different ip address ranges and scan them apart or together. Linscope searches FTP and HTTP services too.

Velociraptor is a simple java API for port scanning and analysis. It provides interfaces to write custom port scanner clients. It scans all ports in a given range to see if they are open and also analyze them to identify the protocol they are running.

A library of LAN tools based on wxWidgets. A ping, a network scanner searching for all the available PCs,printers etc, a local port scanner, a chat/fileshare and a data-traffic collector . Anything else can be added.