Looking for a Powershell script to get which partnered dhcp server is used from win10 clients (base of 3000+ clients.)

Question

Hi; Having issues when we (DHCP) partnered a WIN2k19 server with an established WIN2k16 DHCP server. We have two DHCP servers serving over 3000 Win10 clients in a load balanced config. I would like to know which of the partnered DHCP servers the clients are being served IP's from. I don't know Powershell, but I'm sure there's a script out there for this, that would gather the info at login, and pipe the result to a specified network location. Thanks.

Answer 1

Which interfaces on the DHCP servers are receiving the UDP broadcast packets that the DHCP clients send when they're newly configured or when they don't get a reply to that packet? Is it only the load-balanced IP address? This will get you the information from the client machines. You can add the name of the client machine to the data by adding another key to the hash. Get the machine name from the client machines' environment variables. Package the script as a scriptblock in an Invoke-Command and use the Invoke-Commands' -ComputerName parameter with an array holding the names of all the DHCP client machines.

Get-CimInstance Win32_NetworkAdapterConfiguration |
    ForEach-Object{
        try{
            $d = Get-NetAdapter -InterfaceDescription $_.Description -IncludeHidden -ErrorAction STOP
        }
        Catch{          # maybe not every "InterfaceDescription" will be found by Get-NetAdapter
            $d = @{}
        }
        [PSCustomObject][ordered]@{
            Description = $_.Description
            InterfaceIndexIndex = $d.InterfaceIndex
            DHCPEnabled = $_.DHCPEnabled
            DHCPServer = $_.DHCPServer
            DHCPLeaseObtained = $_.DHCPLeaseObtained
            DHCPLeaseExpires = $_.DHCPLeaseExpires
            IPAddress = $_.IPAddress
            'MAC Address' = $d.MacAddress
        }
    }