* sys/netinet6/ip6_forward.c: do not forward packets with unspecified   IPv6 source.  this is not on the documents, but it seems to have got   rough consensus on ipngwg (July 2000).
* sys/netinet6/ip6_forward.c: do not forward packets with unspecified
  IPv6 source.  this is not on the documents, but it seems to have got
  rough consensus on ipngwg (July 2000).

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