Libnet A C library for portable packet creation domains of sockets and protocols. A C library for portable packet creation Included are also simple example test programs Libnet is a collection of routines to help with the construction and handling of network packets. It provides a portable framework for low-level network packet writing and handling. Libnet features portable packet creation interfaces at the IP layer and link layer, as well as a host of supplementary and complementary functionality. WWW: http://www.infonexus.com/~daemon9/Projects/Libnet/