 
PacGen is an Ethernet IP TCP/UDP packet generating tool for Linux. Experimental ARP 
generation removed until next release. This tool enables custom packets with configurable 
Ethernet, IP, TCP, and UDP layers as well as custom payloads. As an added 
feature there are configurations for packet count and a programmable time 
interval between packet sends. Plaintext config files control all the functions 
and represent all layers used to build packets. Included in the archive is 
commented source code and a recompiled binary along with example 
configs.
You can download the package here.
 
 