when set, no FQDN flags are sent in the DHCP FQDN option. When cleared and all other FQDN flags are zero, standard FQDN flags are sent. This flag is incompatible with any other FQDN flag.
if set, the FQDN is encoded using canonical wire format. Otherwise it uses the deprecated ASCII encoding. This flag is allowed only for DHCPv4.
when not set, request the server to perform updates (the PTR RR and possibly the A RR based on the %NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE flag). If this is set, the %NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE flag should be cleared.
whether the server should do the A RR (FQDN-to-address) DNS updates.
no flag set. The default value from Networkmanager global configuration is used. If such value is unset or still zero, the DHCP request will use standard FQDN flags, i.e. %NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE and %NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED for IPv4 and %NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE for IPv6.
#NMDhcpHostnameFlags describe flags related to the DHCP hostname and FQDN.