Packit (Packet toolkit) is a network auditing tool. Its value
is derived from its ability to customize, inject, monitor, and
manipulate IP traffic. By allowing you to define (spoof) nearly all
TCP, UDP, ICMP, IP, ARP, RARP, and Ethernet header options, Packit
can be useful in testing firewalls, intrusion detection/prevention
systems, port scanning, simulating network traffic, and general TCP/IP
auditing. Packit is also an excellent tool for learning TCP/IP.
