From Fedora Project Wiki
< QA | Networking
Operations
Requirements:
- Support for both IPv4 and IPv6.
- Offer explicit protocol selection. The most common way for command-line tools is via
-4
and-6
command line options. - When no protocol is selected, dual-stack behavior should be used.
- When applicable, IPv6 should be preferred.
Tools mimicking client behavior including ping, tracepath, nc and others should comply with client behavior specified in client sofware subpage.