We are currently working on extending the BitTorrent (Mainline) DHT to work over IPv6. The current draft is available as BEP 32:
There are currently three implementations of BEP-32:
There's a bunch of bootstrap nodes available; please see this forum posting for more information.
I am the author of the DHT used by the Transmission and Hekate BitTorrent implementations.
You may get the last version by doing
git clone git://git.wifi.pps.jussieu.fr/dht
or from the GitHub mirror.
Released versions are in my download area (and also in Transmission itself).
You may get the last version by doing
git clone git://git.wifi.pps.jussieu.fr/dht-bootstrap
or
git clone git clone git://git.wifi.pps.jussieu.fr/dht-bootstrap
Released versions are in my download area
I am the author of the µTP support in Transmission. This has been merged into the Transmission trunk, and is enabled by default.
On a related note, see this note about tweaking TCP's congestion control algorithm.
Hekate is a highly concurrent BitTorrent seeder.