Open abstract primary instantiable class
<numeric-address>
network-order and host-order described above. <ipv4-numeric-address> has two concrete subclasses <ipv4-network-order-address> and <ipv4-host-order-address>. Make <ipv4-numeric-address> returns one or the other of these depending upon the value of the order: keyword.
value: An instance of <machine-word>. Required.
order: One of #"network-order" or #"host-order". Required.