SYN_FLOOD="10/second --limit-burst 4"
iptables -A syn-flood_protection -j RETURN $LIMIT $SYN_FLOOD 
if [ "$LOG_SYNFLOOD" = "1" ] ; then
  iptables -A syn-flood_protection -j LOG $LIMIT $FLOOD_LOG_RATE \
           --log-prefix "Fired possible SYN-flood: "
fi
iptables -A syn-flood_protection -j DROP
there is no entry for LOG_SYNFLOOD anywhere in the firewall,docs, or config files