http://www.cyberciti.biz/faq/linux-traffic-shaping-using-tc-to-control-http-traffic/
http://mirrors.bieringer.de/Linux+IPv6-HOWTO-de/x2496.html
http://www.iplocation.net/tools/traffic-control.php
http://www.ip-phone-forum.de/showthread.php?t=64990
http://stackoverflow.com/questions/182077/best-way-to-simulate-a-wan-network
http://wanem.sourceforge.net/