auto lo
iface lo inet loopback
	up ip addr add 2001:db8:2b::10 dev lo


auto vlan2220
iface vlan2220 inet manual
	up ip link set up dev vlan2220
	up ip addr add 172.16.220.20/24 brd + dev vlan2220
	up ip addr add 2400:5000:6148:2af0::20/64 dev vlan2220
	down ip addr del 2400:5000:6148:2af0::20/64 dev vlan2220
	down ip addr del 172.16.220.20/24 dev vlan2220
	down ip link set down dev vlan2220

iface vlan2222 inet manual
	up ip link set up dev vlan2222
	up ip addr add 172.16.222.20/24 brd + dev vlan2222
	up ip addr add 2400:5000:6148:2af1::20/64 dev vlan2222
	down ip addr del 2400:5000:6148:2af1::20/64 dev vlan2222
	down ip addr del 172.16.222.20/24 dev vlan2222
	down ip link set down dev vlan2222

iface vlan2223 inet manual
	up ip link set up dev vlan2223
	up ip addr add 172.16.223.20/24 brd + dev vlan2223
	up ip addr add 2400:5000:6148:2af2::20/64 dev vlan2223
	down ip addr del 2400:5000:6148:2af2::20/64 dev vlan2223
	down ip addr del 172.16.223.20/24 dev vlan2223
	down ip link set down dev vlan2223