Show system information Show IPv6 routing information Show IPv6 multicast group membership netstat -gn6 Show IPv6 Neighbor Discovery (ND) information ip -f inet6 neigh list Reset Internet Protocol version 6 (IPv6) parameters Reset IPv6 Neighbor Discovery (ND) cache Reset ND cache for an IPv6 address <h:h:h:h:h:h:h:h> sudo ip -f inet6 neigh flush to "$5" Reset IPv6 ND cache for interface sudo ip -f inet6 neigh flush dev "$5" Reset IPv6 route Flush the kernel IPv6 route cache sudo ip -f inet6 route flush cache Flush the kernel IPv6 route cache for a given route <h:h:h:h:h:h:h:h> <h:h:h:h:h:h:h:h/x> sudo ip -f inet6 route flush cache "$5"