From Fedora Project Wiki

Runtime configuration

Configuration generation

Configuration take over

Detecting a method

permanent address lifetimed address method
no no IPv4 disabled / IPv6 link-local
no yes auto
yes no manual
yes yes auto

Notes

  • IPv4 link-local can be detected as well (by an address from 169.254.0.0/16 range)
  • IPv4 shared cannot be detected.
  • IPv6 ignore is obsolete.
  • IPv6 link-local is an equivalent to IPv4 disabled (subject to change).
  • IPv6 DHCP method is still broken and cannot be distinguished from IPv6 auto.