#!/bin/sh
  # Traffic shaping script
  # ---------------------------------------------------------------------
  # Limits upload/download  speed to the lan to 1gbit/s, leaving speeds
  # outside the LAN unaffected
  # ---------------------------------------------------------------------
  # Thanks to iponeverything, fwre01, spr- of http://ubuntuforums.org/
  # ---------------------------------------------------------------------
  
  # Starting with a clean slate
  echo Removing any previously set rules...
          sudo /sbin/tc qdisc del root dev eth0
  
  echo Setting root qdisc...
          sudo /sbin/tc qdisc add dev eth0 root handle 1: htb
  
  echo Setting bandwidth classes...
          sudo /sbin/tc class add dev eth0 parent 1: classid 1:1 htb rate 1mbit ceil 100gbit
          sudo /sbin/tc class add dev eth0 parent 1:1 classid 1:10 htb rate 1gbit ceil 1gbit
  
  echo Creating filters...
  	sudo /sbin/tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 192.168.1.1/24 flowid 1:10
  	sudo /sbin/tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip src 192.168.1.1/24 flowid 1:10
  
  echo Finishing...
          sudo /sbin/tc qdisc add dev eth0 parent 1:10 handle 20: sfq perturb 10