Hping2 Basics

"Hping2 is a command-line oriented TCP/IP packet assembler/analyzer. The interface is inspired by the ping(8) Unix command, but hping isn't only able to send ICMP echo requests. It supports TCP, UDP, ICMP and RAW-IP protocols, has a traceroute mode, the ability to send files between a covert channel, and many other features. "*


The Hping site have some good links to external tutorials,
URL
http://wiki.hping.org/33


*URL
http://www.ethicalhacker.net/content/view/72/24/