auto lo iface lo inet loopback auto vlan36 iface vlan36 inet manual up ip link set up dev vlan36 up ip addr add 10.40.36.34/24 brd + dev vlan36 up ip addr add 2001:db8:10:24::22/120 dev vlan36 up ip route add default via 10.40.36.1 dev vlan36 up ip route add default via 2001:db8:10:24::1 dev vlan36 down ip route -6 del default down ip addr del 2001:db8:10:24::22/120 dev vlan36 down ip addr del 10.40.36.34/24 dev vlan36 down up link set down dev vlan36