Limit mac bandwidth

Limit mac bandwidth.md

Mac limit bandwidth

Enable firewall

Apple menu -> System Preferences -> Security & Privacy -> Firewall

sudo pfctl -e

Example

sudo dnctl pipe 1 config bw 10Kbit/s
sudo dnctl pipe 2 config bw 10Kbit/s
# The second will overwrite first. If you want to set both, use next example
echo "dummynet in all pipe 1" |sudo pfctl -f -
echo "dummynet out all pipe 2" |sudo pfctl -f -

Example - limit speed, set in and out in the same time

echo $'dummynet in all pipe 2\n dummynet out all pipe 1' |sudo pfctl -f -
echo $'dummynet in all from any to example.com pipe 2\n dummynet out all from any to example.com pipe 1' |sudo pfctl -f -

Example - block domain

echo $'block in proto tcp from jrxncdkk2ls00000.m2.exosite.io to any' |sudo pfctl -f -

When you're done

sudo dnctl -q flush
sudo pfctl -f /etc/pf.conf

Disable firewall

sudo pfctl -d

Show info

sudo pfctl -sa

Ref:

https://spin.atomicobject.com/2016/01/05/simulating-poor-network-connectivity-mac-osx/

thanks a lot! it helps so much

the rule echo $'dummynet in all from any to example.com pipe 2 [...etc...]

stdin:1: syntax error
pfctl: Syntax error in config file: pf rules not loaded)

I am trying to limit bandwidth for a specific streaming site that doesn't let me choose video quality... any clue?

Using GUI application is easier to limit bandwidth or delay or loss, such as Apple's Network Link Conditioner
See bandwidth-shaper-or-bandwidth-controller-application-for-mac-os-x