The DHT uses UDP(not TCP) as its transport, which Tor does not support. Some references: DHT spec: http://bittorrent.org/beps/bep_0005.html Tor and other transports: https://www.torproject.org/docs/faq#TransportIPnotTCP On 2015-01-13 20:46, Cathal Garvey wrote:
Hey all, I'm aware that (for pretty good reasons) bittorrent is "blocked" by most exits on Tor. However, I'm unsure how this blockage is implemented, and it just emerged as a relevant item in my thought-process: the Bittorrent "Mainline" DHT is not necessarily useful to Bittorrent alone, but is frequently used as an experimental platform for other P2P applications.
Is the bittorrent DHT blocked by Tor exits, or just the Bittorrent file-transfer protocol? If the latter, how is that block enacted when most bittorrent apps support protocol obfuscation and dynamic ports?