New-VPNConnection

#### Parameters
$ResourceGroup = "myResourceGroup"             ### Name of your Resource Group
$Location = "myLocation"                       ### Resource Location example, westeurope
$VirtualNetworkName = "newAzureLan"            ### Name of new Azure Virtual Network
$VirtualGatewayName = "newAzureGateway"        ### Name of new Azure Virtual Gateway
$LocalGatewayName = "newLocalGateway"          ### Name of new Azure Local Gateway
$SubnetName = "newAzureSubnet"                 ### Name of new Azure Subnet
$Sharedkey = "key01"                           ### Preshared key for VPN
$InternalPrefix = 'myPrefix'                   ### Internal Network Prefix example, 192.168.0.0/24
$AddressPrefix = 'newPrefix'                   ### New Address prefix for Azure virtual network example, 10.4.0.0/16
$Subnet = 'newSubnet'                          ### New Subnet for new Azure virtual network example, 10.4.0.0/24
$DNSServer = "myDNSServer"                     ### IP address of DNS Server internal or Azure example, 192.168.0.1
$GatewaySubnet = 'newGatewaySubnet'            ### Gateway Subnet for virtual gateway example, 10.4.1.0/24
$VPNConnectionName = "newConnection"           ### New VPN Connection name example, VPNConnection


#### Import Azure PowerShell Module
Import-Module -Name AzureRM

#### Connect to Azure Tenant
Write-host "Please enter your Azure Tenant credentails"
$Azurecred = Get-Credential

Connect-AzureRmAccount -Credential $Azurecred

#### Create Azure Virtual Network
$AzureSubnet = New-AzureRmVirtualNetworkSubnetConfig -name $SubnetName -AddressPrefix $subnet
New-AzureRmVirtualNetwork -Name $VirtualNetworkName -ResourceGroupName $ResourceGroup -Location $location -AddressPrefix $AddressPrefix -Subnet $Azuresubnet -DnsServer $DNSServer

#### Create Azure Virtual Network Gateway
$PublicIP = New-AzureRmPublicIpAddress -name GWIP -ResourceGroupName $ResourceGroup -Location $Location -AllocationMethod Dynamic
$VirtualNetwork = Get-AzureRmVirtualNetwork -Name $VirtualNetworkName -ResourceGroupName $ResourceGroup
$GatewaySubnetConfig = Add-AzureRmVirtualNetworkSubnetConfig -Name GatewaySubnet -AddressPrefix $GatewaySubnet -VirtualNetwork $VirtualNetwork | Set-AzureRmVirtualNetwork
$VirtualNetwork = Get-AzureRmVirtualNetwork -Name $VirtualNetworkName -ResourceGroupName $ResourceGroup
$GatewaySubnetIP = Get-AzureRmVirtualNetworkSubnetConfig -name GatewaySubnet -VirtualNetwork $VirtualNetwork
$GatewayIPConfig = New-AzureRMVirtualNetworkGatewayIpConfig -Name GatewaySubnet -SubnetId $GatewaySubnetIP.id -PublicIpAddressId $PublicIP.Id
New-AzureRmVirtualNetworkGateway -Name $VirtualGatewayName -ResourceGroupName $ResourceGroup -Location $Location -ipconfiguration $GatewayIPConfig -GatewayType Vpn -VpnType PolicyBased -GatewaySku Basic

#### Create Azure Local Network Gateway
$ExternalIP = Invoke-RestMethod http://ipinfo.io/json | Select -exp ip
New-AzureRmLocalNetworkGateway -Name $LocalGatewayName -ResourceGroupName $ResourceGroup -Location $location -GatewayIpAddress $ExternalIP -AddressPrefix $InternalPrefix

#### Create Azure VPN Connection
$VirtualGateway = Get-AzureRmVirtualNetworkGateway -Name $VirtualGatewayName -ResourceGroupName $ResourceGroup
$localGateway = Get-AzureRmLocalNetworkGateway -Name $LocalGatewayName -ResourceGroupName $ResourceGroup
New-AzureRmVirtualNetworkGatewayConnection -Name $VPNConnectionName -ResourceGroupName $ResourceGroup -Location $Location -VirtualNetworkGateway1 $VirtualGateway -LocalNetworkGateway2 $LocalGateway -ConnectionType IPsec -RoutingWeight 10 -SharedKey $Sharedkey

### Show VPN info
$PublicIPAddress = Get-AzureRmPublicIpAddress -Name GWIP -ResourceGroupName $ResourceGroup
Write-host "Azure VPN IP Address is "$PublicIPAddress.IpAddress" and the shared key is $Sharedkey"