Currently Torrent Sync uses only IPv4 sockets for communication.
Torrent Sync is a M2M sync tool and many ISPs will only provide native IPv6 with a IPv4 tunnel mechanism to support older machines or applications but in most you have problems to start a sync to machines behind a IPv6 DS-LITE connection.
Ipv6 Support
in Feature Requests
Posted
Currently Torrent Sync uses only IPv4 sockets for communication.
Torrent Sync is a M2M sync tool and many ISPs will only provide native IPv6 with a IPv4 tunnel mechanism to support older machines or applications but in most you have problems to start a sync to machines behind a IPv6 DS-LITE connection.
I need full IPv6 support.