Functions/Get-IpV4Network.ps1
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function Get-IpV4Network { <# .SYNOPSIS Given a subnet in CIDR format, get all of the valid IP addresses in that range. .DESCRIPTION Given a subnet in CIDR format, get all of the valid IP addresses in that range. .PARAMETER Subnets The subnet written in CIDR format 'a.b.c.d/#' and an example would be '192.168.1.24/27'. Can be a single value, an array of values, or values can be taken from the pipeline. .EXAMPLE Get-IpRange -Subnets '192.168.1.24/30' 192.168.1.25 192.168.1.26 .EXAMPLE (Get-IpRange -Subnets '10.100.10.0/24').count 254 .EXAMPLE '192.168.1.128/30' | Get-IpRange 192.168.1.129 192.168.1.130 .NOTES Inspired by https://gallery.technet.microsoft.com/PowerShell-Subnet-db45ec74 * Added comment help #> # todo Change += to System.Collections.Arraylist [CmdletBinding(ConfirmImpact = 'None')] Param( [Parameter(Mandatory, HelpMessage = 'Please enter a subnet in the form a.b.c.d/#', ValueFromPipeline, Position = 0)] [alias('Address')] [ipaddress[]] $IpAddress, [alias('Sn')] [ipaddress] $SubnetMask, [switch] $IncludeInput ) begin { Write-Verbose -Message "Starting [$($MyInvocation.Mycommand)]" } process { foreach ($item in $IpAddress) { $Result = ([ipaddress] ($item.address -band $SubnetMask.address)).IPAddressToString if ($IncludeInput) { New-Object -TypeName psobject -Property ([ordered] @{ IpAddress = $item.IPAddressToString SubnetMask = $SubnetMask.IPAddressToString Network = $Result }) } else { $Result } } } end { Write-Verbose -Message "Ending [$($MyInvocation.Mycommand)]" } } |