NetStumbler (also known as Network Stumbler) is a tool for Windows that facilitates detection of Wireless LANs using the 802.11b, 802.11a and 802.11g WLAN standards. It runs on Microsoft Windows 98 and above. A trimmed-down version called MiniStumbler is available for Windows CE.
NetStumbler is commonly used for: Wardriving, verifying network configurations, finding locations with poor coverage in one’s WLAN, detecting causes of wireless interference, detecting unauthorized (”rogue”) access points, aiming directional antennas for long-haul WLAN links
httptunnel creates a bidirectional virtual data connection tunnelled in HTTP requests. The HTTP requests can be sent via an HTTP proxy if so desired.
This can be useful for users behind restrictive firewalls. If WWW access is allowed through a HTTP proxy, it's possible to use httptunnel and, say, telnet or PPP to connect to a computer outside the firewall.
Wireshark's powerful features make it the tool of choice for network troubleshooting, protocol development, and education worldwide.
Wireshark was written by an international group of networking experts, and is an example of the power of open source. It runs on Windows, Linux, UNIX, and other platforms.
It used to be known as Ethereal, and was renamed in May 2006. If you haven't upgraded to Wireshark yet you may want to take a look at the migration guide.
Ethereal® is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements. It runs on all popular computing platforms, including Unix, Linux, and Windows.
CSpace provides a platform for secure, decentralized, user-to-user communication over the internet. The driving idea behind the CSpace platform is to provide a connect(user,service) primitive, similar to the sockets API connect(ip,port). Applications built on top of CSpace can simply invoke connect(user,service) to establish a connection. The CSpace platform will take care of locating the user and creating a secure, nat/firewall friendly connection.