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#MAC file $macs = get-content .\mac.txt foreach($mac in $macs){ #Use arp -a $ip = arp -a | select-string "$mac" |% { $_.ToString().Trim().Split(" ")[0] } "$mac has an ip of $ip" } |
PowerShell 5.0
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Get-NetNeighbor | Select-Object IPAddress,LinkLayerAddress |