||This property is to specify which address to assign an IPv4
gateway. If there is a negative sign in front of the gateway offset,
the gateway is at the end of the range. For example, if the value of
gateway offset is -n, the nth IP
address from the end of range will be the gateway.
||Can be either OFFSET_AND_SIZE (default value),
||Can be either RESERVED_BLOCK,
||This property is to specify from which address to start to assign
||The size of the network.
||Can be either FROM_START or
||The name of the network.
||Splits DHCP ranges around static, reserved, and gateway