Packit 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.
Firewall Tester The Firewall Tester is a tool designed for testing firewalls filtering policies and Intrusion Detection System (IDS) capabilities. The tool consists of two perl scripts, a packet injector (ftest) and the listening sniffer (ftestd). The first script injects custom packets, defined in ftest.conf, with a signature in the data part while the sniffer listens for such marked packets. The scripts both write a log file which is in the same form for both scripts.