tc-gen is a wrapper around all the complexity of modern traffic shaping and policing on linux. It tries to use best practices whenever possible while still being generic and easy to use. The script is using HTB with fq_codel to do the heavy lifting.
Run tc-gen.sh without parameters to see more details.
Shape egress to 25 mbit/s
tc-gen.sh -i eth0 -u 25
Shape egress to 5 mbit/s and ingress to 10 mbit/s using IFB-interface
tc-gen.sh -i eth0 -u 5 -d 10 -f ifb0
Shape egress to 1500 kbit/s and police ingress to 20 mbit/s
tc-gen.sh -i eth0 -u 1500k -d 20M
Display current configuration
tc-gen.sh -i eth0
Remove configuration
tc-gen.sh -i eth0 -x
# Simple DHCP WAN config
allow-auto eth1
iface eth1 inet dhcp
post-up /usr/local/bin/tc-gen.sh -i ${IFACE} -u 10 -d 100 -f ifb0
# More advanced example with an additional tc filter exclude for
# UDP-encapsulated IPsec ESP-traffic to avoid double counting IPsec data on
# ingress
allow-auto bond0.12
iface bond0.12 inet dhcp
post-up /usr/local/bin/tc-gen.sh -i ${IFACE} -u 10 -d 100 -f ifb0
post-up /sbin/tc filter add dev ${IFACE} parent ffff: protocol ip prio 1 u32 match ip protocol 17 0xff match ip dport 4500 0xffff action pass
# Example with egress shaping on gre-tunnel
allow-auto gre2
iface gre2 inet tunnel
address 10.0.1.0
netmask 255.255.255.254
local 10.0.2.2
endpoint 10.1.2.2
mode gre
mtu 1400
post-up /usr/local/bin/tc-gen.sh -i ${IFACE} -u 25