The EFF has released a tool for consumers to use to test their ISP connection for tampering. Comcast and the government folks must just love the EFF guys.
At present, the EFF admits that the Switzerland utility is targeted more toward sophisticated end users. More user-friendly versions are promised in the near future. The "Test Your ISP" Web site (www.eff.org/testyourisp) hosted by EFF lists seven other ISP-testing tools with links to many of the utilities. The EFF hopes to collect results from user tests throughout the world to get a comprehensive look at how ISPs are handling their users' access. The data will also help the open-source effort to develop even greater tools in combating ISP abuse. [source]