Backport fix for DHCPv6 DAD to nm-1-38 branch
nm-dhcp-client.c had a lot of changes between nm-1-38 and main, and so I had to backport several other patches to avoid too many conflicts.
nm-dhcp-client.c had a lot of changes between nm-1-38 and main, and so I had to backport several other patches to avoid too many conflicts.