The SI6 Networks’ IPv6 toolkit is developed by Fernando Gont for SI6 Networks. The tools comprising the toolkit range from packet-crafting tools to send arbitrary Neighbor Discovery packets to the most comprehensive IPv6 network scanning tool out there (our scan6 tool). It can be leveraged to perform security assessments of IPv6 networks, assess the resiliency of IPv6 devices by performing real-world attacks against them, and to trouble-shoot IPv6 networking problems. The SI6 Networks’ IPv6 toolkit is a set of IPv6 security assessment and trouble-shooting tools.