[1029231759] Upstream Reporter: Dusty Mabe
Upstream issue status: Closed
Upstream description:

Once NM#994(https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/994) lands we'll want to switch to `ip=auto` to continue to get the same behavior we currently have.

• Currently `ip=dhcp,dhcp6` gives us
• both dhcp4 and dhcp6 tried, with an extra 20 second wait for ipv4
• see NM#729(https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/729)
• In the future `ip=dhcp,dhcp6` will give us:
• both dhcp4 and dhcp6 tried, with an extra 20 second wait for ipv4 AND ipv6
• see NM#994(https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/994)

The extra timeout for ipv6 is not really desired as a default IMO.

After talking with @bengal `ip=auto` generates the same config we have today (our desired config) so we'll switch to that when the time comes in order to maintain our current default behavior.