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Blocking Bittorrent is challenging, and can't really be done effectively with port blocks. The standard ports are 6881-6889 TCP, but the protocol can be run on any port, and the peer-to-peer nature of the protocol means that discovering peers that use unblocked ports is simple. Blocking Bittorrent traffic could be done with a deep-packet-inspection or ...

First of all, there's nothing inherently dangerous or illegal (except perhaps in unusual jurisdictions) about using BitTorrent. There are plenty of free clients out there all that are well-respected and trustworthy. BitTorrent is frequently used to distribute large open-source projects, such as ISO files for Linux distributions. It's also used by companies ...

ISPs have never been involved in the process of determining weather or not specific traffic is related to a Copyright violation. From a technical perspective the ISP is one of the worst places to impermanent such a monitoring system. (There is a huge amount of traffic flowing through an ISP, and huge number of possible copyright violations. At best case ...

The growing popularity for Torrent proxies is for anonymity. You can encrypt traffic all you want, but it can always be traced back to the public facing node. The contents of your communication will remain private, however it can be identified that your IP address was in communication with a remote IP address. Without a proxy that will trace back to either ...

As far as I know pfsense performs very simplistic traffic shaping where by it prioritizes traffic based on port range. This is just so that you can play games with someone else using BitTorrent on the network. This is just to be friendly, this is not for "security". Trying to filter all BitTorrent traffic at the gateway is very a difficult problem and a ...

You could take a look at a recent technical paper, The Unbearable Lightness of Monitoring. The authors of that paper talk about how the BitTorrent protocol itself allows people to see what Internet Protocol addresses take part in the P2P downloading aspect of BitTorrent. They also say that they have a way to detect monitoring IP addresses, and say that ...