auto lo
iface lo inet loopback
	up ip addr add 2001:db8:2a::25 dev lo

auto vlan2000
iface vlan2000 inet manual
	up ip link set up dev vlan2000
	up ip addr add 2404:e80:2e0:2ab2::25/64 dev vlan2000
	down ip addr del 2404:e80:2e0:2ab2::25/64 dev vlan2000
	down ip link set down dev vlan2000

auto vlan2001
iface vlan2001 inet manual
	up ip link set up dev vlan2001
	up ip addr add 172.16.0.1/24 brd + dev vlan2001
	up ip addr add 2404:e80:2e0:2ae0::1/64 dev vlan2001
	down ip addr del 2404:e80:2e0:2ae0::1/64 dev vlan2001
	down ip addr del 172.16.0.1/24 dev vlan2001
	down ip link set down dev vlan2001

auto vlan2002
iface vlan2002 inet manual
	up ip link set up dev vlan2002
	up ip addr add 172.16.1.1/24 brd + dev vlan2001
	up ip addr add 2404:e80:2e0:2ae1::1/64 dev vlan2002
	down ip addr del 2404:e80:2e0:2ae1::1/64 dev vlan2002
	down ip addr del 172.16.1.1/24 dev vlan2001
	down ip link set down dev vlan2002