VMware PowerCLI – MS Windows Guest VM ‘IP&DNS’ Modification

The following script allows the user to modify an MS Windows Guest VM IP and DNS configuration. You may download the ‘IP&DNS_Modification.ps1‘ script HERE (Remove the .doc extension).

Begin by entering the ESXi/Vcenter Host IP Address, username and password:

A list of all VM’s residing in ESXi/Vcenter will be returned, followed by a prompt to enter the VM name you wish to modify. Once the VM name is entered a list of all the MS Windows Ethernet interfaces and their respective configurations shall be returned:

Provide the required IP configuration updates for the interface specified (‘Ethernet 2’ in this example):

Specify whether you wish to modify the DNS entries:

The script utilizes the Invoke-VMScript option to run Windows ‘Netsh’ commands on the network interface (Modify the script with your Windows username and password). These are the results as per the example given, along with the option to repeat the same process for another Windows Guest VM:

SCRIPT IN FULL:

########################################################## # # Reference: MS Windows Guest IP Modification # Script: PowerCLI IP&DNS Modification # # Date: 2015-04-21 # # Version 1.0 # ##########################################################


Write-Host "Please enter the ESXi/Vcenter Host IP Address:" -ForegroundColor Yellow -NoNewline

$VMHost = Read-Host 
Write-Host "Please enter the ESXi/Vcenter Username:" -ForegroundColor Yellow -NoNewline

$User = Read-Host
Write-Host "Please enter the ESXi/Vcenter Password:" -ForegroundColor Yellow -NoNewline

$Pass = Read-Host 
Connect-VIServer -Server $VMHost -User $User -Password $Pass
do {

#Return list of VM's

Get-VM | select name
#Prompt for VM name

Write-Host "Please enter the VM Name that requires IP modification:" -ForegroundColor Yellow -NoNewline

$VM = Read-Host 
Write-Host "The current VM Network Configuration:" -ForegroundColor Yellow

#Display Existing NIC Configuration

$shownet = "netsh interface ip show config"

Invoke-VMScript -ScriptText $shownet -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat
################################

# Modify IP Configuration? y/n #

################################
Write-Host "Modify IP Details? " -ForegroundColor Yellow -NoNewline

Write-Host " Y/N:" -ForegroundColor Red -NoNewline

$IPChange = Read-Host 
if ($IPChange -eq "y") {

Write-Host "Please provide the following IP details:" -ForegroundColor Yellow

#Prompt for IP Updates:

Write-Host "Interface Name:" -ForegroundColor Green -NoNewline

$NIC = Read-Host

Write-Host "New IP address:" -ForegroundColor Green -NoNewline

$IP = Read-Host

Write-Host "New Netmask:" -ForegroundColor Green -NoNewline

$NETMASK = Read-Host

Write-Host "New Gateway:" -ForegroundColor Green -NoNewline

$Gateway = Read-Host 
#Invoke Windows netsh Script

$script = "netsh interface ip set address ""$NIC"" static $IP $NETMASK $Gateway"

Invoke-VMScript -ScriptText $script -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat

}
#################################

# Modify DNS Configuration? y/n #

#################################

Write-Host "Modify DNS Details? " -ForegroundColor Yellow -NoNewline

Write-Host " Y/N:" -ForegroundColor Red -NoNewline

$DNSChange = Read-Host 
if ($DNSChange -eq "y") {

#Prompt for Primary DNS IP:

Write-Host "Enter Primary DNS IP:" -ForegroundColor Green -NoNewline

$DNS1 = Read-Host

Write-Host "Enter Secondary DNS IP:" -ForegroundColor Green -NoNewline

$DNS2 = Read-Host  
$DNSPrimary = "netsh interface ip set dnsservers name=""$NIC"" static $DNS1"

Invoke-VMScript -ScriptText $DNSPrimary -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat
$DNSSecondary = "netsh interface ip add dnsservers name=""$NIC"" $DNS2 index=2"

Invoke-VMScript -ScriptText $DNSSecondary -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat
}
# Display Network Configuration #

Invoke-VMScript -ScriptText $shownet -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat

Write-Host "Change IP Configuration for another WINDOWS Guest VM? " -ForegroundColor Yellow -NoNewline Write-Host " Y/N:" -ForegroundColor Red -NoNewline $response = Read-Host } while ($response -eq "Y")

Thanks @CliffCahill and ‘Mike Leahy’ for your input, as always greatly appreciated!

Posted on April 21, 2015 3 By David Ring Uncategorized Posted in Uncategorized, vsphere Tagged #Configuration, DNS, Ethernet, Guest, IP, Modification, PowerCLI, VM, VMWARE, Windows

David Ring

3 Comments »

Ashish Srivastava
November 28, 2016 at 1:29 pm Reply

Hi,

i am executing same ps1 command using different local admin user, but having an error, like..

ScriptOutput : The requested operation requires elevation (Run as administrator).

any idea about work around.

same local admin having full admin rights.
i don’t want to go through with built in admin.
- David Ring
  November 28, 2016 at 11:03 pm Reply
  
  Hi, have you modified the script to change the administrator: Invoke-VMScript -ScriptText $shownet -VM $vm -GuestUser administrator -GuestPassword MSPassword -ScriptType Bat
Ashish Srivastava
December 13, 2016 at 10:35 pm Reply

HI, Thanks for answering.

unfortunately, still having same problem, no luck with your command.

Thanks

DavidRing.ie