_CHECK_STATES=$(/sbin/pfctl -si | /usr/bin/grep current | awk '{print $3}')
if [ $_CHECK_STATES -lt $_WARNING_STATES_LIMIT ];then
echo "OK: States number ($_CHECK_STATES) is below threshold (warn : $_WARNING_STATES_LIMIT / crit : $_CRTICAL_STATES_LIMIT / max : $_MAX_STATES_LIMIT)"