Options for connecting BitTorrent peers using uTP

The introduction to uTP can be found in following links: BEP 29 libtorrent document

The introduction to UDP hole-punch can be found in following links: BEP 55

Globally uTP Options

Tools menu -> Options ->BitTorrent -> Enable uTP for peer connection

• Disable: connecting peers using TCP only; accept TCP incoming connections only.
• Auto Detect: connecting peers using uTP after TCP failures; accept uTP & TCP incoming connections.
• Always: connecting peers using uTP only; accept uTP & TCP incoming connections.
• Forcibly: connecting peers using uTP only; accept uTP incoming connections only.

Tools menu -> Options ->Advanced -> bittorrent.utp_after_holepunch

• Disable: skip hole-punch before creating uTP connections.
• Auto: performs hole-punch before creating uTP connections only for peers retrieved from PEX supporting BEP 55.
• Forcibly: always performs hole-punch before creating uTP connections to any peer.

Tools menu -> Options ->Advanced -> bittorrent.peer_hole_punch

• true: enable BEP 55 hole punch extension in BitComet as an initiator, responder, or introducer.
• false: disable BEP 55 hole punch extension in BitComet.

uTP Option for a specified peer

Peers list of BitTorrent task -> context menu -> uTP initiation

• Default: following the globally option, connect to this peer using TCP and/or uTP.
• Disable: override globally options, do not connect to this peer using uTP.
• Hole Punch: override globally options, always performs hole-punch before creating uTP connection to this peer.
• Direct: override globally options, always skip hole-punch before creating uTP connection to this peer.