Function Convert-RvNetInt64ToIpAddress() 
{ 
    <# 
    .DESCRIPTION 
        Developer 
            Developer: Rudolf Vesely, http://rudolfvesely.com/ 
            Copyright (c) Rudolf Vesely. All rights reserved 
            License: Free for private use only 
    #> 
 
    Param 
    ( 
        [int64] 
        $Int64 
    ) 
 
    # Return 
    '{0}.{1}.{2}.{3}' -f ([math]::Truncate($Int64 / 16777216)).ToString(), 
        ([math]::Truncate(($Int64 % 16777216) / 65536)).ToString(), 
        ([math]::Truncate(($Int64 % 65536)/256)).ToString(), 
        ([math]::Truncate($Int64 % 256)).ToString() 
} 
 
Function Convert-RvNetSubnetMaskCidrToClasses 
{ 
    <# 
    .DESCRIPTION 
        Developer 
            Developer: Rudolf Vesely, http://rudolfvesely.com/ 
            Copyright (c) Rudolf Vesely. All rights reserved 
            License: Free for private use only 
    #> 
 
    Param 
    ( 
        [int] 
        $SubnetMaskCidr 
    ) 
 
    # Return 
    Convert-RvNetInt64ToIpAddress -Int64 ([convert]::ToInt64(('1' * $SubnetMaskInt + '0' * (32 - $SubnetMaskInt)), 2)) 
}


$SubnetMaskInt = 28