* sys/netinet6/nd6*.c: minimize number of log() or printf() on inbound   packet processing path, to avoid /var from get filluped with with   bogus packet storms. * sys/netinet6/icmp6.c: supply new sysctl net.inet6.icmp6.nd6_debug,   to turn on/off error/warning messages on inbonud ND/ICMPv6 packets.   disabled by default, can be enabled by default if you have   "options ND6_DEBUG". * sys/netinet6: OLD_LOOPBACK_IF is no longer supported (see changelog   on 2000/7/30).
* sys/netinet6/nd6*.c: minimize number of log() or printf() on inbound
  packet processing path, to avoid /var from get filluped with with
  bogus packet storms.
* sys/netinet6/icmp6.c: supply new sysctl net.inet6.icmp6.nd6_debug,
  to turn on/off error/warning messages on inbonud ND/ICMPv6 packets.
  disabled by default, can be enabled by default if you have
  "options ND6_DEBUG".
* sys/netinet6: OLD_LOOPBACK_IF is no longer supported (see changelog
  on 2000/7/30).

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