auto p_33470efd-1
iface p_33470efd-1 inet manual
  pre-up ip link add p_33470efd-0 mtu 1500 type veth peer name p_33470efd-1 mtu 1500
  post-up ip link set up dev p_33470efd-1
  post-down ip link del p_33470efd-0
