PEX - is there a bug with IPv6

[SpasV]

uTorrent 1.8.3 beta (build 15358)

I have been seeding a torrent with Enable DHT, Peer Exchange, Local Peer Discovery - all they OFF (private).

I have Enable Peer Exchange, Enable DHT Network, Enable Local Peer Discovery all they OFF in Preferences/BitTorrent.

And still I had peers marked with the flag X. They all had IPv6.

So, what is this? If not a bug how to prevent PEX?

Edit: I have seen peers with IPv4 address also.

[Napsterbater]

I'm seeing this in 1.9 15380 as well sort of.

I Have torrents on a private tracker that is not IPv6 capable at all, yet I still get some ipv6 peers (in one case noticed they were all uT 1.8.2) that had the the flags of U XEP and u IXE

should be looked into.

Let me know if you need any more info.

Edit: BTW in my case I do have DHT, Peer Exchange and Local Peer Discovery on, but the torrent itself was mark private and showing all three as "not allowed" with seeds and peers as 0.

[Switeck]

My guess:

If you're connected already via IPv4, uTorrent may be self-reporting its own IPv6 ip address as a "Peer Exchange" link since some trackers won't work with IPv6 at all. But even still that makes little sense.

[Napsterbater]

That sounds like a good possibility. Would be nice to get some confirmation as to whats going on.

[Firon]

I believe they can tell each other their IPv6 addresses in the handshake. No PEX required.

[Greg Hazel]

Yes, what Firon said is correct.

More details: http://forum.utorrent.com/viewtopic.php?pid=456544#p456544