Comment by reisse

3 years ago

It does apply to all torrents. As far as I know, by default torrent trackers provide no facilities for hole punching.

However, if you have a tracker in a sense of "community of people dedicated to file sharing", there will be guides on how to do a proper setup even behind carrier-grade NAT. For example, one of the trackers I know suggested using Teredo (IPv6-to-IPv4) tunneling to do the hole punching.