tcpdump -nqt src net 10.86.0.0/16 and dst net ! 10.86.0.0/16 \
> /tmp/tcpdump_temp 2>&1 &
sleep 10
kill `ps aux | grep tcpdump | grep -v grep | awk '{print $2}'`
#awk '{s[$2] += $6}END{ for(i in s){ print i, s[i] } }' /tmp/tcpdump_temp
cat /tmp/tcpdump_temp|grep 'IP ' \
|awk -F'[. ]' '{s[$2"."$3"."$4"."$5]+=$14}END{for(i in s){print i"\t"s[i]}}' \
|sort -n -r -k 2 

tcpdump -nqt src net 10.86.0.0/16 and dst net ! 10.86.0.0/16 \
> /tmp/tcpdump_temp 2>&1 &
sleep 10
kill `ps aux | grep tcpdump | grep -v grep | awk '{print $2}'`
#awk '{s[$2] += $6}END{ for(i in s){ print i, s[i] } }' /tmp/tcpdump_temp
cat /tmp/tcpdump_temp|grep 'IP ' \
|awk -F'[. ]' '{s[$8"."$9"."$10"."$11]+=$14}END{for(i in s){if(s[i]>0)print i"\t"s[i] fi}}' \
|sort -n -r -k 2

tcpdump -i ens3 -nqt src net 10.86.0.0/16 and dst net ! 10.86.0.0/16\
|sed 's/.[0-9]\+\s>//g'|sed 's/.[0-9]\+://g'\
|sed 's/, length//g'\
> /tmp/tcpdump_temp 2>&1 &
sleep 5
kill `ps aux | grep tcpdump | grep -v grep | awk '{print $2}'`
cat /tmp/tcpdump_temp\
|awk '{s[$3]+=$5}END{for(i in s){if(s[i]>0)print i"\t"s[i] fi}}'\
|sort -n -r -k 2
echo "finish."

iftop -o destination -t -s 1 -L 10

iftop -nNP -o destination -t -s 3 -L 1