Professional Look at Net
Learn more about network protocols, hosts, ports and packets with our tools for network monitor - "professional Look at Net", free portable app for Microsoft Windows XP/2003/Vista/7 operating systems.
The program is designed to teach the basics of computer networks at the low level - at the level of Ethernet frames and IP (Internet Protocol) packets - by capturing network traffic, decoding encapsulated in the IP packets of a higher level protocols - TCP, UDP, ICMP. Also focus on the basics of network security - the search for the remote computers open to attack ports, etc.
In the hosts with Windows XP and Windows 2003 operating systems scan the network without the administrator of network privileges, only the rights of the local administrator are needed to install the program and scan in "invisible" mode. But in the hosts with Windows Vista, Windows Server 2008 and Windows 7 operating systems the local administrator privileges need to install program, and for capture IP packets or Ethernet frames, and comfortable work further with the program.
Also provides filtration of capture IP packets based on IP addresses, ports, direction - inbound or outbound. The captured IP packets and Ethernet frames can be automatically saved to files on the 500, 2000 or 5000 packets for further processing. In a simple built-in single-string HEX editor you can edit the content not only packets, but also any small-size files.
Also in the "User Manual" here a more detailed discussion of network scanning techniques on various Microsoft Windows operating systems, with code examples.
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