From Fedora Project Wiki
IPv6
Fedora IPv6 networking is done with the following components:
- Kernel
- GLIBC
- NetworkManager
- ISC DHCP client
Bugs that affect IPv6 Networking
- Fedora 843051 - getaddrinfo() fails to parse IPv6 addresses on hosts without global IPv6
- Fedora 719178 - Applications can't connect to IPv6 link-local addresses learned through nss-mdns and Avahi
- Fedora 821127 - Avahi's IPv6 support is disabled by default
- Various NetworkManager bugs
Only platform bugs that can influence various application belong here.