PS: Connecting To VPNs In W10

1 minute read

Description:

So after reimaging my machine at work, I looked into a way I could setup my VPN using powershell. Here is how assuming you are using L2TP with a pre-shared key.

To Resolve:

  1. Copy and save as a .ps1 file in notepad:

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    $VpnName = "Datacenter"
    $Pre = Read-Host -Prompt "Enter Preshared Key"
    $VPN = Add-Vpnconnection -Name $VpnName -Serveraddress "vpnserver.domain.com" -Tunneltype L2tp `
    -Encryptionlevel Required -Authenticationmethod Mschapv2 -L2tppsk $Pre -Remembercredential -Passthru
    Start-Sleep 3
    Write-Output "Setting Registry Entry For L2TP VPNs"
    $Registrypath = "Hklm:\System\Currentcontrolset\Services\Policyagent"
    $Name = "AssumeUDPEncapsulationContextOnSendRule"
    $Value = "2"
    If (!(Test-Path $Registrypath))
    {
       New-Item -Path $Registrypath -Force | Out-Null
    }
    New-Itemproperty -Path $Registrypath -Name $Name -Value $Value -Propertytype Dword -Force | Out-Null
    If ($Vpn.Connectionstatus -Eq "Disconnected")
    {
       $Password = Read-Host -Prompt "Enter User Password For VPN"
       Cmd /c "Rasdial $VpnName domain.com\yourUserName $Password"
          
       Start-Sleep 3
       # Connect To Any Machine On The Destination Network
       If ( Test-Netconnection 192.168.0.23 -Informationlevel Quiet)
       {
          Write-Output "Connected To Vpn"
       }
       Else
       {
          Write-Output "Not Connected To Vpn"
       }
       $Input = Read-Host "Would You Like To Disconnect The Vpn? (Y)Yes Or (N)No"
       If ($Input -Eq 'Y')
       {
          Cmd /c "Rasdial /Disconnect"
       }
       Else
       {
          Exit
       }
    }
    

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