From Fedora Project Wiki
< QA | Networking
Operations
Requirements:
- Support both IPv4 and IPv6 protocols.
- Support explicit protocol selection (e.g. via
-4
and-6
and command-line options). - Prefer IPv6 by default.
- Prefer IPv4 when configured so (e.g. via
/etc/gai.conf
). - Work well even when IPv6 is disabled in the kernel.
Tools mimicking client behavior including ping, tracepath, nc and others should also comply with client behavior specified in client sofware subpage.