The SI6 Networks' IPv6 toolkit is a set of IPv6 security/trouble-shooting tools, that can send arbitrary IPv6-based packets. flow6: A tool to perform a security asseessment of the IPv6 Flow Label. frag6: A tool to perform IPv6 fragmentation-based attacks and to perform a security assessment of a number of fragmentation-related aspects. icmp6: A tool to perform attacks based on ICMPv6 error messages. jumbo6: A tool to assess potential flaws in the handling of IPv6 Jumbograms. na6: A tool to send arbitrary Neighbor Advertisement messages. ni6: A tool to send arbitrary ICMPv6 Node Information messages, and assess possible flaws in the processing of such packets. ns6: A tool to send arbitrary Neighbor Solicitation messages. ra6: A tool to send arbitrary Router Advertisement messages. rd6: A tool to send arbitrary ICMPv6 Redirect messages. rs6: A tool to send arbitrary Router Solicitation messages. scan6: An IPv6 address scanning tool. tcp6: A tool to send arbitrary TCP segments and perform a variety of TCP-based attacks.