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. Packit 1.0 requires libnet 1.1.2 or greater, avalaible in SlackBuilds.org repository, as well as libpcap which is avalaible with Slackware own n/tcpdump.