Get IP Addresses for Remote Computers

Get-IPAddress.ps1

function Get-IPAddress
{
    [CmdletBinding()]
    param
    (
        [ValidateSet('IPv4','IPv6','All')]
        [string]
        $AddressType = 'All',
        
        [Parameter(ValueFromPipelineByPropertyName,ValueFromPipeline)]
        [string]
        $ComputerName = $env:COMPUTERNAME
    )
    
    PROCESS
    {
        switch ($AddressType)
        {
            'IPv4'
            {
                $IPAddresses = foreach ($Item in ([System.Net.Dns]::GetHostAddresses($ComputerName)))
                {
                    if ($Item.AddressFamily -eq 'InterNetwork') { $Item.IPAddressToString }            
                }
            }
            'IPv6'
            {
                $IPAddresses = foreach ($Item in ([System.Net.Dns]::GetHostAddresses($ComputerName)))
                {
                    if ($Item.AddressFamily -eq 'InterNetworkv6') { $Item.IPAddressToString }            
                }
            }
            Default {$IPAddresses = [System.Net.Dns]::GetHostAddresses($ComputerName).IPAddressToString}
        }
        
        [PSCustomObject]@{
            ComputerName = $ComputerName
            AddressList  = $IPAddresses
        }
    }
}