hostname
duid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option ntp_servers
option interface_mtu
require dhcp_server_identifier
slaac private
nohook lookup-hostname

noipv6rs
waitip 4

denyinterfaces em[!0],tap*,bridge[!0],lo*,vnet*,ep*

interface em0
ipv6rs
iaid 1
ia_na 1
ia_pd 2/::/64 bridge0/0/64

interface bridge0
ipv6only