auto lo iface lo inet loopback up ip addr add 10.40.32.12/32 dev lo up ip addr add 2001:db8:10:6::c dev lo down ip addr del 2001:db8:10:6::c dev lo down ip addr del 10.40.32.12/32 dev lo auto vlan36 iface vlan36 inet manual up ip link set up dev vlan36 up ip addr add 10.40.36.1/24 brd + dev vlan36 up ip addr add 2001:db8:10:24::1/120 dev vlan36 down ip addr del 2001:db8:10:24::1/120 dev vlan36 down ip addr del 10.40.36.1/24 dev vlan36 down up link set down dev vlan36 auto vlan33 iface vlan33 inet manual up ip link set up dev vlan33 up ip addr add 10.40.33.3/26 brd + dev vlan33 up ip addr add 2001:db8:10:21::3/120 dev vlan33 down ip addr del 2001:db8:10:21::3/120 dev vlan33 down ip addr del 10.40.33.3/26 dev vlan33 down up link set down dev vlan33