Below are some built-in commands that you can make use of on the Mac Terminal to monitor the network traffic.
netstat Command
Make use of the netstat command to display network statistics and all the active network connections.
% netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
lo0 16384 <Link#1> 3994 0 3994 0 0
lo0 16384 127 localhost 3994 - 3994 - -
lo0 16384 localhost ::1 3994 - 3994 - -
lo0 16384 c2cs-macboo fe80:1::1 3994 - 3994 - -
gif0* 1280 <Link#2> 0 0 0 0 0
stf0* 1280 <Link#3> 0 0 0 0 0
anpi1 1500 <Link#4> 9e:00:90:d3:c2:cc 0 0 0 0 0
anpi0 1500 <Link#5> 9e:00:90:d3:c2:cb 0 0 0 0 0
en3 1500 <Link#6> 9e:00:90:d3:c2:ab 0 0 0 0 0
en4 1500 <Link#7> 9e:00:90:d3:c2:ac 0 0 0 0 0
en1 1500 <Link#8> 36:5f:76:30:f6:80 0 0 0 0 0
en2 1500 <Link#9> 36:5f:76:30:f6:84 0 0 0 0 0
ap1* 1500 <Link#10> 3a:3e:ef:d8:68:7c 0 0 0 0 0
en0 1500 <Link#11> 18:3e:ef:d8:68:7c 675074 0 338171 0 0
en0 1500 c2cs-macboo fe80:b::d1:abdc:8 675074 - 338171 - -
en0 1500 192.168.0 192.168.0.105 675074 - 338171 - -
awdl0 1500 <Link#12> a6:fa:d5:9d:42:03 0 0 10 0 0
awdl0 1500 fe80::a4fa: fe80:c::a4fa:d5ff 0 - 10 - -
llw0 1500 <Link#13> a6:fa:d5:9d:42:03 0 0 0 0 0
llw0 1500 fe80::a4fa: fe80:d::a4fa:d5ff 0 - 0 - -
bridge0 1500 <Link#14> 36:5f:76:30:f6:80 0 0 0 0 0
utun0 1500 <Link#15> 0 0 1 0 0
utun0 1500 c2cs-macboo fe80:f::a941:6a66 0 - 1 - -
utun1 1380 <Link#16> 0 0 3 0 0
utun1 1380 c2cs-macboo fe80:10::e415:752 0 - 3 - -
utun2 2000 <Link#17> 0 0 4 0 0
utun2 2000 c2cs-macboo fe80:11::f908:bf5 0 - 4 - -
utun3 1000 <Link#18> 0 0 3 0 0
utun3 1000 c2cs-macboo fe80:12::ce81:b1c 0 - 3 - -
utun4 1350 <Link#19> 0 0 4 0 0
utun4 1350 c2cs-macboo fe80:13::b194:e5e 0 - 4 - -
utun5 1380 <Link#20> 0 0 4 0 0
utun5 1380 c2cs-macboo fe80:14::5e27:fa3 0 - 4 - -
tcpdump Command
Get the dump of your network using the tcpdump packet analyzer command. Note, that you will need administrative privileges to run this command.
sudo tcpdump -i en0If you want to monitor network traffic in real-time on the Terminal you can make use of the console-based network bandwidth monitoring tool called iftop. You will need to get it installed using Homebrew.
brew install iftopYou will need administrative privileges to run this command.
sudo iftop Provide Feedback For This Article
We take your feedback seriously and use it to improve our content. Thank you for helping us serve you better!
😊 Thanks for your time, your feedback has been registered!
Comments & Discussion
Facing issues? Have questions? Post them here! We're happy to help!