Pirate Bay v6 breaks stuff?

[Jeroen Massar]

Iljitsch van Beijnum wrote:
> Hi,
> 
> The Pirate Bay is rolling out IPv6:
> 
> http://thepiratebay.org/blog/146
> 
> They now have an IPv6 tracker. I tried this with two clients (purely for
> research purposes, of course): Azureus 3.0.3.4 and the (original?)
> BitTorrent 4.1.7 python client. Neither of them could do anything useful
> when connected to the tracker over IPv6, and neither of them would fall
> back to IPv4 as far as I can tell.

The trick is that in the generic tracker protocol (the HTTP based one)
one don't use the "peers" notation which is IPv4 only (just 32-bits
repeated).

> Anyone else seeing the same issues?

Works for me(tm) and apparently a number of clients are able to use it
IPv6: http://www.sixxs.net/tools/tracker/clients/ for a list.

Note also that http://piratebay.org lists:
8<-------------------------------------------------------------------------
IPv4 23.013.843 peers (10.345.077 seeders + 12.668.766 leechers) in
1.593.127 torrents on tracker.
IPv6 17.142 peers (7.566 seeders + 9.576 leechers) in 15.523 torrents on
tracker.
RSS
------------------------------------------------------------------------->8
Thus, yes, there is content out there ;)

> As far as I know, the original BitTorrent specification allows for IPv6
> but later updates optimized away the possibility of communicating IPv6
> addresses or host names and only work with IPv4 addresses, but I have no
> idea about the capabilities of various software.

They support it, as they don't use the peers notation for IPv6. See above.

> Tip: if you're having this type of trouble on FreeBSD, this will make
> the client connect to the tracker over IPv6. Creating a Windows version
> of this command is left as an exercise for the reader.

Your Prefix Policy should already prefer native IPv6 over native IPv4;
6to4 and Teredo is behind native IPv4 though.

Greets,
 Jeroen

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