* sys/netinet6/raw_ip6.c (netbsd/openbsd): validate/notify path MTU   discovery correctly for raw ip6 sockets.   note: since ping6 does not use connect(2) for the socket for   outgoing traffic, ping6 will have issues with route pointer kept   in in6pcb - need to restart ping6 to reflect new pmtu.
* sys/netinet6/raw_ip6.c (netbsd/openbsd): validate/notify path MTU
  discovery correctly for raw ip6 sockets.
  note: since ping6 does not use connect(2) for the socket for
  outgoing traffic, ping6 will have issues with route pointer kept
  in in6pcb - need to restart ping6 to reflect new pmtu.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame