auto enp3s0.30
iface enp3s0.30 inet manual
iface enp3s0.30 inet6 auto
	accept_ra 0
	dhcp 0
	request_prefix 0
	privext 0
	pre-up sysctl -w net/ipv6/conf/enp3s0.30/disable_ipv6=1

auto dmzbr
iface dmzbr inet manual
	bridge_ports enp3s0.30
	bridge_stp off
iface dmzbr inet6 auto
	accept_ra 0
	dhcp 0
	request_prefix 0
	privext 0
	pre-up sysctl -w net/ipv6/conf/dmzbr/disable_ipv6=1