The Electronic Frontier Foundation's new "Switzerland" tool can detect violations of Net Neutrality by your ISP:
"The sad truth is that the FCC is ill-equipped to detect ISPs interfering with your Internet connection," said Fred von Lohmann, EFF Senior Intellectual Property Attorney. "It's up to concerned Internet users to investigate possible network neutrality violations, and EFF's Switzerland software is designed to help with that effort. Comcast isn't the first, and certainly won't be the last, ISP to meddle surreptitiously with its subscribers' Internet communications for its own benefit."
"Until now, there hasn't been a reliable way to tell if somebody — a hacker, an ISP, corporate firewall, or the Great Firewall of China — is modifying your Internet traffic en route," said Peter Eckersley, EFF Staff Technologist and designer of Switzerland. "The few tests available have been for narrow and specific kinds of interference, or have required tremendous amounts of advanced forensic labor. Switzerland is designed to make general-purpose ISP testing faster and easier."
Part of EFF's "Test your ISP" project, Switzerland is an open source, command-line software tool designed to detect the modification or injection of packets of data by ISPs. Switzerland detects changes made by software tools believed to be in use by ISPs such as Sandvine and AudibleMagic, advertising systems like FairEagle, and various censorship systems. Although currently intended for use by technically sophisticated Internet users, development plans aim to make the tool increasingly easy to use.