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Whilst I agree that the Tor network would be better off without Bittorrent traffic, it bothers me when I read things that say that Tor can't anonymise Bittorren

Whilst I agree that the Tor network would be better off without Bittorrent traffic, it bothers me when I read things that say that Tor can't anonymise Bittorrent traffic. https://trac.torproject.org/projects/tor/wiki/TheOnionRouter/TransparentProxy https://trac.torproject.org/projects/tor/wiki/TheOnionRouter... Using the TransparentProxy mode of Tor, forces all network traffic out through Tor, and blocks stuff which can't be, such as UDP. Do that on a machine which only has a LAN address so doesn't know it's Internet facing IP, and it's anonymous... It can't leak it's IP because it doesn't know it, and it can't connect to the Internet without going via Tor...

phugoid 16y ago
Tor can't anonymize Bittorent traffic when that traffic includes messages showing your IP address in clear text.
- mike-cardwell 16y ago
  Did you not read what I wrote? How can a machine leak it's IP address if it doesn't know it?
thecoffman 16y ago
Yes, but the article states that some torrent software actually appends your IP address information to the packets themselves, so even if they emerge from an exit node on the other side of the world, entirely anonymized, simple packet inspection can determine their origin.
- mike-cardwell 16y ago
  How does the software append your IP address if it doesn't know it? It can't get it from your router via UPNP, because that traffic is blocked. If it tries to get it by connecting to some online service and asking the IP, the IP it gets back is the Exit nodes. It doesn't know it's IP address, so it can't leak it.
  - thecoffman 16y ago
    Hrm, I see what you're saying - that is an interesting question. I'm not actually sure of the answer.
    - mike-cardwell 16y ago
      The answer is, it doesn't. This is why it is completely anonymous to use Tor with Bittorrent, but only if you use a transparent proxy configuration.

phugoid 16y ago

Tor can't anonymize Bittorent traffic when that traffic includes messages showing your IP address in clear text.

mike-cardwell 16y ago
Did you not read what I wrote? How can a machine leak it's IP address if it doesn't know it?

thecoffman 16y ago

Yes, but the article states that some torrent software actually appends your IP address information to the packets themselves, so even if they emerge from an exit node on the other side of the world, entirely anonymized, simple packet inspection can determine their origin.

mike-cardwell 16y ago
How does the software append your IP address if it doesn't know it? It can't get it from your router via UPNP, because that traffic is blocked. If it tries to get it by connecting to some online service and asking the IP, the IP it gets back is the Exit nodes. It doesn't know it's IP address, so it can't leak it.
- thecoffman 16y ago
  Hrm, I see what you're saying - that is an interesting question. I'm not actually sure of the answer.
  - mike-cardwell 16y ago
    The answer is, it doesn't. This is why it is completely anonymous to use Tor with Bittorrent, but only if you use a transparent proxy configuration.