Source/Public/Get-MACVendor.ps1
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.SYNOPSIS Find MAC Address Vendors .DESCRIPTION Lookup Vendor of MAC Address regsitered on IEEE.org (Institute of Electrical and Electronics Engineers) database .PARAMETER MACAddress MAC address to lookup .EXAMPLE PS > Get-MACVendor -MACAddress "dc-4a-3e-81-d0-66","d4-81-d7-c4-34-43","48-4d-7e-e6-a8-94" MACAddress ManufacturerName ---------- ---------------- dc-4a-3e-81-d0-66 Hewlett Packard d4-81-d7-c4-34-43 Dell Inc. 48-4d-7e-e6-a8-94 Dell Inc. .EXAMPLE PS > "18-DB-F2-48-51-F6","58-FB-84-C1-31-26","dc-4a-3e-81-d0-66","00-50-56-C0-00-01","00-50-56-C0-00-08" | Get-MACVendor MACAddress ManufacturerName ---------- ---------------- 18-DB-F2-48-51-F6 Dell Inc. 58-FB-84-C1-31-26 Intel Corporate dc-4a-3e-81-d0-66 Hewlett Packard 00-50-56-C0-00-01 VMware, Inc. 00-50-56-C0-00-08 VMware, Inc. .NOTES General notes #> Function Get-MACVendor { [cmdletbinding()] [alias("macv")] Param( [Parameter( Mandatory = $true, HelpMessage = 'MAC Address to lookup', ValueFromPipeline = $true, Position = 0 )] [ValidateNotNullOrEmpty()] [string[]] $MACAddress ) Begin { Try { $Data = Import-csv "$(Split-Path (Split-Path $PSScriptRoot))\Data\MACReference.csv" } Catch { "Something went wrong! please try running the script again." } } Process { Foreach ($MAC in $MACAddress) { $Data.where( {($MAC.replace(':', '').replace('-', '')[0..5] -join '') -in $_.assignment.split(' ')}) | ` Select-Object @{n = 'MACAddress'; e = {$MAC}}, ManufacturerName -OutVariable Output If (-not $Output) { Write-Error "Couldn't find Manufacturer information for $MAC" } } } End { Remove-Variable -Name Data; [gc]::Collect() } } |