IPv4Class.ps1
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Class IPv4Class { [ValidatePattern("^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$")] [string]$IPAddress [int64]$Decimal [string]$Binary # Constructors IPv4Class ( [string]$IPAddress ){ $this.IPAddress = $IPAddress $this.Decimal = [IPv4Class]::GetDecimalFromIP($IPAddress) $this.Binary = [IPv4Class]::GetBinaryFromIP($IPAddress) } # Methods static [string]GetBinaryFromIP([string]$IPAddress){ $binarynum = ($IPAddress.Split('.') | ForEach-Object{[Convert]::ToString($_, 2).PadLeft(8,"0")}) -join '' return $binarynum } static [int64]GetDecimalFromIP([string]$IPAddress){ $binarynum = ($IPAddress.Split('.') | ForEach-Object{[Convert]::ToString($_, 2).PadLeft(8,"0")}) -join '' return [convert]::ToInt64($binarynum,2) } static [string]GetIPFromBinary([string]$Binary){ $binarynum = $Binary.PadLeft(32,"0") $IP = ( 0, 8, 16, 24 | ForEach-Object{ [convert]::ToInt64($binarynum.Substring($_,8),2) } ) -join '.' return $IP } static [string]GetIPFromDecimal([string]$Decimal){ $binarynum = [convert]::ToString([int64]$Decimal,2) return [IPv4Class]::GetIPFromBinary($binarynum) } [string] GetSubnetID([string]$SubnetMask){ $SubnetMaskIP = ([IPv4Class]::new($SubnetMask)).IPAddress $IPAddressArray = $this.IPAddress.Split('.') $SubnetMaskArray = $SubnetMaskIP.Split('.') $SubnetID = ( 0..3 | ForEach-Object{ $IPAddressArray[$_] -band $SubnetMaskArray[$_] } ) -join '.' return $SubnetID } static [string] GetSubnetHostCount([string]$SubnetMask){ $SubnetMaskIP = ([IPv4Class]::new($SubnetMask)).IPAddress $MaskZeroCount = [IPv4Class]::GetBinaryFromIP($SubnetMaskIP).TrimStart("1").ToCharArray() | measure | Select-Object -ExpandProperty Count $SubnetHostCount = [math]::Pow(2,$MaskZeroCount) - 2 return $SubnetHostCount } [array] GetSubnetIPs([string]$SubnetMask){ $SubnetMaskIP = ([IPv4Class]::new($SubnetMask)).IPAddress $ip = [IPv4Class]::new($this.IPAddress) $subnetid = $ip.GetSubnetID($SubnetMaskIP) $start = [IPv4Class]::new($subnetid).Decimal + 1 $end = $start + ([IPv4Class]::GetSubnetHostCount($SubnetMaskIP) - 1) #odd math needed here to get range numbers into int32 $IPs = ($start - ($start - 1))..($end - ($start - 1))| ForEach-Object{ $ip = $_ + ($start -1) [IPv4Class]::GetIPFromDecimal($ip) } return $IPs } } |