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Make your internet like the 80ies
help() {
echo 'G o S L O W ...'
stop() {
sudo ipfw delete 1
sudo ipfw delete 2
sudo ipfw pipe 1 delete
echo "Its off now!"
start() {
echo "Setting to $1ms"
sudo ipfw pipe 1 config bw 512Kbit/s delay $1ms
# For packet loss, add plr <n>, where <n> is a floating point number between 0 and 1 (0 meaning no loss, and 1 meaning that all packets are discarded). This will for example simulate a mobile lossy connection pretty well.
sudo ipfw add 1 pipe 1 src-port 80
sudo ipfw add 2 pipe 1 dst-port 80
# sudo ipfw pipe 1 config bw 16Kbit/s delay 350ms
case "$1" in
stop|off|down) stop ;;
start|on|up) start $2 ;;
*) help ;;
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