SlowHTTPTest is a highly configurable tool that simulates some Application Layer Denial of Service attacks. It works on majority of Linux platforms, OSX and Cygwin - a Unix-like environment and command-line interface for Microsoft Windows.
Multi-protocol packet injector tool for *nix systems, actually supporting 15 protocols. Features: - Flooding - CIDR support - TCP, UDP, ICMP, IGMPv2, IGMPv3, EGP, DCCP, RSVP, RIPv1, RIPv2, GRE, ESP, AH, EIGRP and OSPF support. - TCP Options. - High performance. - Can hit about 1.000.000 packets per second.