Assuming only the traffic (which is destined to a contiguous address IPv6 block say a /64) reaches an interface (physical or virtual) by means of routing and/or filtering rules. The...
I am working on a 12.04 LTS Ubuntu, but I prefer a generic approach on any NIX system with stable kernel (BSD-like or Linux, Solaris/Illumos if must, no comercial offerings).
I am trying to receive (tcp/udp/sctp) traffic from all IPs and, eventually, all ports of an IPv6 address block using as few sockets as possible short of implementing my own network...