<# .SYNOPSIS Lists the (cached) network neighbors .DESCRIPTION This PowerShell script lists all network neighbors of the local computer (using the ARP cache). .EXAMPLE PS> ./list-network-neighbors.ps1 IPAddress InterfaceAlias LinkLayerAddress State --------- -------------- ---------------- ----- 192.168.178.43 Ethernet 2C-F0-5D-E7-8E-EE Reachable ... .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> try { if ($IsLinux) { & ip neigh | grep REACHABLE } elseif ($IsMacOS) { & ip neigh | grep REACHABLE } else { Get-NetNeighbor -includeAllCompartments -state Permanent,Reachable | Format-Table -property @{e='IPAddress';width=38},@{e='InterfaceAlias';width=14},@{e='LinkLayerAddress';width=19},@{e='State';width=12} } exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }