internal/functions/math/Test-Subnet.ps1
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function Test-Subnet { <# .SYNOPSIS Tests whether a host fits into the specified subnet. .DESCRIPTION Tests whether a host fits into the specified subnet. .PARAMETER NetworkAddress The address of the subnet. .PARAMETER MaskAddress The subnet mask of the subnet. .PARAMETER MaskSize The size of the mask of the subnet. .PARAMETER HostAddress The address of the host to test .EXAMPLE PS C:\> Test-Subnet -NetworkAddress '192.168.2.0' -MaskSize 24 -HostAddress '192.168.20.255' Checks whether the address '192.168.20.255' is part of the subnet '192.168.2.0/24' #> [CmdletBinding()] Param ( [IPAddress] $NetworkAddress, [IPAddress] $MaskAddress, [int] $MaskSize, [IPAddress] $HostAddress ) process { if ($MaskSize) { $MaskAddress = ConvertTo-SubnetMask -MaskSize $MaskSize } $NetworkAddress.Address -eq ($MaskAddress.Address -band $HostAddress.Address) } } |