pfSense

	$subnetv4_start1 = gen_subnetv4($subnet1, $largest_sn);

	$subnetv4_start2 = gen_subnetv4($subnet2, $largest_sn);

		// One or both args is not a valid IPv4 subnet

		//FIXME: needs to return "bad data" not true/false if bad. For now return false, best we can do until fixed

		return false;

	$subnetv6_start1 = gen_subnetv6($subnet1, $largest_sn);

	$subnetv6_start2 = gen_subnetv6($subnet2, $largest_sn);

		// One or both args is not a valid IPv6 subnet

		//FIXME: needs to return "bad data" not true/false if bad. For now return false, best we can do until fixed

		return false;