Azure IP Changes

Question

Hello,

I have machine in Azure deployment with NIC which has several IP addresses.

For example:

NIC:

ipconfig1 192.168.10.1 (Private IP) 77.77.77.1(Public IP)

ipconfig2 192.168.10.2 (Private IP) 77.77.77.2(Public IP)

ipconfig3 192.168.10.3 (Private IP) 77.77.77.3(Public IP)

ipconfig4 192.168.10.4 (Private IP) 77.77.77.4(Public IP)

ipconfig5 192.168.10.5 (Private IP) 77.77.77.5(Public IP)

I need to change it very fast in some cases to different Private IP address.

How I can do it with script? because manually it takes a long time.

Also How I can change several IP-s?

I mean just IP-s - ipconfig3,ipconfig4,ipconfig5, but leave ipconfig1 and ipconfig2 as the are?

Please help me, I'm new in azure, but I need to prepare some scripts ASAP,

Thanks in advance,

Answer 1

You can use Azure PowerShell to quickly change the private IP addresses of specific ipconfig settings on your Azure Network Interface Card (NIC). Here's a script that will update only ipconfig3, ipconfig4, and ipconfig5 while leaving ipconfig1 and ipconfig2 unchanged.

# Define variables
$ResourceGroupName = "YourResourceGroup"
$NICName = "YourNIC"
$NewPrivateIPs = @{
    "ipconfig3" = "192.168.20.3"
    "ipconfig4" = "192.168.20.4"
    "ipconfig5" = "192.168.20.5"
}

# Get the NIC
$NIC = Get-AzNetworkInterface -ResourceGroupName $ResourceGroupName -Name $NICName

# Update specific IP configurations
foreach ($ipconfig in $NewPrivateIPs.Keys) {
    $NIC.IpConfigurations | Where-Object { $_.Name -eq $ipconfig } | ForEach-Object {
        $_.PrivateIpAddress = $NewPrivateIPs[$ipconfig]
    }
}

# Apply the changes
Set-AzNetworkInterface -NetworkInterface $NIC

Write-Host "Private IPs updated successfully."

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hth

Marcin