Windows Automatic Network Configuration

windows_automatic_network_config.ps1

function windows_automatic_network_config {
    param (
        [string]$IPv4,
        [string]$CIDR,
        [string]$Gateway,
        [string]$DNS1,
        [string]$DNS2
    )
    
    # Check if all arguments are provided
    if (-not $IPv4 -or -not $CIDR -or -not $Gateway -or -not $DNS1 -or -not $DNS2) {
        Write-Host "Usage: .\script.ps1 -IPv4 <ipv4> -CIDR <cidr> -Gateway <gateway> -DNS1 <dns1> -DNS2 <dns2>"
        exit 1
    }

    # Detect the network interface
    $interface = Get-NetAdapter | Where-Object { $_.Status -eq 'Up' } | Select-Object -First 1

    if (-not $interface) {
        Write-Host "No active network interface found."
        exit 1
    }

    # Calculate Subnet Mask from CIDR
    $subnetMask = [System.Net.IPNetwork]::Parse("$IPv4/$CIDR").SubnetMask

    # Configure the static IP settings
    try {
        New-NetIPAddress -InterfaceAlias $interface.Name -IPAddress $IPv4 -PrefixLength $CIDR -DefaultGateway $Gateway -ErrorAction Stop

        # Set the DNS servers
        Set-DnsClientServerAddress -InterfaceAlias $interface.Name -ServerAddresses ($DNS1, $DNS2) -ErrorAction Stop

        Write-Host "Network and DNS configuration applied permanently."
    } catch {
        Write-Host "Failed to apply network settings: $_"
        exit 1
    }
}